feat(chatbot): implement base chatbot structure and enhance integration capabilities

- Introduced a base structure for chatbot integrations, including BaseChatbotController and BaseChatbotService.
- Added common DTOs for chatbot settings and data to streamline integration processes.
- Updated existing chatbot controllers (Dify, Evoai, N8n) to extend from the new base classes, improving code reusability and maintainability.
- Enhanced media message handling across integrations, including audio transcription capabilities using OpenAI's Whisper API.
- Refactored service methods to accommodate new message structures and improve error handling.

src/api/integrations/chatbot/base-chatbot.controller.ts

@@ -0,0 +1,921 @@
+import { IgnoreJidDto } from '@api/dto/chatbot.dto';
+import { InstanceDto } from '@api/dto/instance.dto';
+import { PrismaRepository } from '@api/repository/repository.service';
+import { WAMonitoringService } from '@api/services/monitor.service';
+import { Logger } from '@config/logger.config';
+import { BadRequestException } from '@exceptions';
+import { TriggerOperator, TriggerType } from '@prisma/client';
+import { getConversationMessage } from '@utils/getConversationMessage';
+
+import { BaseChatbotDto } from './base-chatbot.dto';
+import { ChatbotController, ChatbotControllerInterface, EmitData } from './chatbot.controller';
+
+// Common settings interface for all chatbot integrations
+export interface ChatbotSettings {
+  expire: number;
+  keywordFinish: string[];
+  delayMessage: number;
+  unknownMessage: string;
+  listeningFromMe: boolean;
+  stopBotFromMe: boolean;
+  keepOpen: boolean;
+  debounceTime: number;
+  ignoreJids: string[];
+  splitMessages: boolean;
+  timePerChar: number;
+  [key: string]: any;
+}
+
+// Common bot properties for all chatbot integrations
+export interface BaseBotData {
+  enabled?: boolean;
+  description: string;
+  expire?: number;
+  keywordFinish?: string[];
+  delayMessage?: number;
+  unknownMessage?: string;
+  listeningFromMe?: boolean;
+  stopBotFromMe?: boolean;
+  keepOpen?: boolean;
+  debounceTime?: number;
+  triggerType: string | TriggerType;
+  triggerOperator?: string | TriggerOperator;
+  triggerValue?: string;
+  ignoreJids?: string[];
+  splitMessages?: boolean;
+  timePerChar?: number;
+  [key: string]: any;
+}
+
+export abstract class BaseChatbotController<BotType = any, BotData extends BaseChatbotDto = BaseChatbotDto> extends ChatbotController implements ChatbotControllerInterface {
+  public readonly logger: Logger;
+  
+  integrationEnabled: boolean;
+  botRepository: any;
+  settingsRepository: any;
+  sessionRepository: any;
+  userMessageDebounce: { [key: string]: { message: string; timeoutId: NodeJS.Timeout } } = {};
+  
+  // Name of the integration, to be set by the derived class
+  protected abstract readonly integrationName: string;
+  
+  // Method to process bot-specific logic
+  protected abstract processBot(
+    waInstance: any,
+    remoteJid: string,
+    bot: BotType,
+    session: any,
+    settings: ChatbotSettings,
+    content: string,
+    pushName?: string,
+    msg?: any,
+  ): Promise<void>;
+  
+  // Method to get the fallback bot ID from settings
+  protected abstract getFallbackBotId(settings: any): string | undefined;
+  
+  constructor(
+    prismaRepository: PrismaRepository,
+    waMonitor: WAMonitoringService,
+  ) {
+    super(prismaRepository, waMonitor);
+    
+    this.sessionRepository = this.prismaRepository.integrationSession;
+  }
+
+  // Base create bot implementation
+  public async createBot(instance: InstanceDto, data: BotData) {
+    if (!this.integrationEnabled) throw new BadRequestException(`${this.integrationName} is disabled`);
+
+    const instanceId = await this.prismaRepository.instance
+      .findFirst({
+        where: {
+          name: instance.instanceName,
+        },
+      })
+      .then((instance) => instance.id);
+
+    // Set default settings if not provided
+    if (
+      !data.expire ||
+      !data.keywordFinish ||
+      !data.delayMessage ||
+      !data.unknownMessage ||
+      !data.listeningFromMe ||
+      !data.stopBotFromMe ||
+      !data.keepOpen ||
+      !data.debounceTime ||
+      !data.ignoreJids ||
+      !data.splitMessages ||
+      !data.timePerChar
+    ) {
+      const defaultSettingCheck = await this.settingsRepository.findFirst({
+        where: {
+          instanceId: instanceId,
+        },
+      });
+
+      if (data.expire === undefined || data.expire === null) data.expire = defaultSettingCheck?.expire;
+      if (data.keywordFinish === undefined || data.keywordFinish === null)
+        data.keywordFinish = defaultSettingCheck?.keywordFinish;
+      if (data.delayMessage === undefined || data.delayMessage === null)
+        data.delayMessage = defaultSettingCheck?.delayMessage;
+      if (data.unknownMessage === undefined || data.unknownMessage === null)
+        data.unknownMessage = defaultSettingCheck?.unknownMessage;
+      if (data.listeningFromMe === undefined || data.listeningFromMe === null)
+        data.listeningFromMe = defaultSettingCheck?.listeningFromMe;
+      if (data.stopBotFromMe === undefined || data.stopBotFromMe === null)
+        data.stopBotFromMe = defaultSettingCheck?.stopBotFromMe;
+      if (data.keepOpen === undefined || data.keepOpen === null) data.keepOpen = defaultSettingCheck?.keepOpen;
+      if (data.debounceTime === undefined || data.debounceTime === null)
+        data.debounceTime = defaultSettingCheck?.debounceTime;
+      if (data.ignoreJids === undefined || data.ignoreJids === null) data.ignoreJids = defaultSettingCheck?.ignoreJids;
+      if (data.splitMessages === undefined || data.splitMessages === null)
+        data.splitMessages = defaultSettingCheck?.splitMessages ?? false;
+      if (data.timePerChar === undefined || data.timePerChar === null)
+        data.timePerChar = defaultSettingCheck?.timePerChar ?? 0;
+
+      if (!defaultSettingCheck) {
+        await this.settings(instance, {
+          expire: data.expire,
+          keywordFinish: data.keywordFinish,
+          delayMessage: data.delayMessage,
+          unknownMessage: data.unknownMessage,
+          listeningFromMe: data.listeningFromMe,
+          stopBotFromMe: data.stopBotFromMe,
+          keepOpen: data.keepOpen,
+          debounceTime: data.debounceTime,
+          ignoreJids: data.ignoreJids,
+          splitMessages: data.splitMessages,
+          timePerChar: data.timePerChar,
+        });
+      }
+    }
+
+    const checkTriggerAll = await this.botRepository.findFirst({
+      where: {
+        enabled: true,
+        triggerType: 'all',
+        instanceId: instanceId,
+      },
+    });
+
+    if (checkTriggerAll && data.triggerType === 'all') {
+      throw new Error(`You already have a ${this.integrationName} with an "All" trigger, you cannot have more bots while it is active`);
+    }
+
+    // Check for trigger keyword duplicates
+    if (data.triggerType === 'keyword') {
+      if (!data.triggerOperator || !data.triggerValue) {
+        throw new Error('Trigger operator and value are required');
+      }
+
+      const checkDuplicate = await this.botRepository.findFirst({
+        where: {
+          triggerOperator: data.triggerOperator,
+          triggerValue: data.triggerValue,
+          instanceId: instanceId,
+        },
+      });
+
+      if (checkDuplicate) {
+        throw new Error('Trigger already exists');
+      }
+    }
+
+    // Check for trigger advanced duplicates
+    if (data.triggerType === 'advanced') {
+      if (!data.triggerValue) {
+        throw new Error('Trigger value is required');
+      }
+
+      const checkDuplicate = await this.botRepository.findFirst({
+        where: {
+          triggerValue: data.triggerValue,
+          instanceId: instanceId,
+        },
+      });
+
+      if (checkDuplicate) {
+        throw new Error('Trigger already exists');
+      }
+    }
+
+    // Derived classes should implement the specific duplicate checking before calling this method
+    // and add bot-specific fields to the data object
+
+    try {
+      const botData = {
+        enabled: data?.enabled,
+        description: data.description,
+        expire: data.expire,
+        keywordFinish: data.keywordFinish,
+        delayMessage: data.delayMessage,
+        unknownMessage: data.unknownMessage,
+        listeningFromMe: data.listeningFromMe,
+        stopBotFromMe: data.stopBotFromMe,
+        keepOpen: data.keepOpen,
+        debounceTime: data.debounceTime,
+        instanceId: instanceId,
+        triggerType: data.triggerType,
+        triggerOperator: data.triggerOperator,
+        triggerValue: data.triggerValue,
+        ignoreJids: data.ignoreJids,
+        splitMessages: data.splitMessages,
+        timePerChar: data.timePerChar,
+        ...this.getAdditionalBotData(data),
+      };
+
+      const bot = await this.botRepository.create({
+        data: botData,
+      });
+
+      return bot;
+    } catch (error) {
+      this.logger.error(error);
+      throw new Error(`Error creating ${this.integrationName}`);
+    }
+  }
+
+  // Additional fields needed for specific bot types
+  protected abstract getAdditionalBotData(data: BotData): Record<string, any>;
+
+  // Common implementation for findBot
+  public async findBot(instance: InstanceDto) {
+    if (!this.integrationEnabled) throw new BadRequestException(`${this.integrationName} is disabled`);
+
+    const instanceId = await this.prismaRepository.instance
+      .findFirst({
+        where: {
+          name: instance.instanceName,
+        },
+      })
+      .then((instance) => instance.id);
+
+    try {
+      const bots = await this.botRepository.findMany({
+        where: {
+          instanceId: instanceId,
+        },
+      });
+
+      return bots;
+    } catch (error) {
+      this.logger.error(error);
+      throw new Error(`Error finding ${this.integrationName}`);
+    }
+  }
+
+  // Common implementation for fetchBot
+  public async fetchBot(instance: InstanceDto, botId: string) {
+    if (!this.integrationEnabled) throw new BadRequestException(`${this.integrationName} is disabled`);
+
+    try {
+      const bot = await this.botRepository.findUnique({
+        where: {
+          id: botId,
+        },
+      });
+
+      if (!bot) {
+        throw new Error(`${this.integrationName} not found`);
+      }
+
+      return bot;
+    } catch (error) {
+      this.logger.error(error);
+      throw new Error(`Error fetching ${this.integrationName}`);
+    }
+  }
+
+  // Common implementation for settings
+  public async settings(instance: InstanceDto, data: any) {
+    if (!this.integrationEnabled) throw new BadRequestException(`${this.integrationName} is disabled`);
+
+    try {
+      const instanceId = await this.prismaRepository.instance
+        .findFirst({
+          where: {
+            name: instance.instanceName,
+          },
+        })
+        .then((instance) => instance.id);
+
+      const existingSettings = await this.settingsRepository.findFirst({
+        where: {
+          instanceId: instanceId,
+        },
+      });
+
+      // Get the name of the fallback field for this integration type
+      const fallbackFieldName = this.getFallbackFieldName();
+      
+      const settingsData = {
+        expire: data.expire,
+        keywordFinish: data.keywordFinish,
+        delayMessage: data.delayMessage,
+        unknownMessage: data.unknownMessage,
+        listeningFromMe: data.listeningFromMe,
+        stopBotFromMe: data.stopBotFromMe,
+        keepOpen: data.keepOpen,
+        debounceTime: data.debounceTime,
+        ignoreJids: data.ignoreJids,
+        splitMessages: data.splitMessages,
+        timePerChar: data.timePerChar,
+        [fallbackFieldName]: data.fallbackId, // Use the correct field name dynamically
+      };
+
+      if (existingSettings) {
+        const settings = await this.settingsRepository.update({
+          where: {
+            id: existingSettings.id,
+          },
+          data: settingsData,
+        });
+
+        // Map the specific fallback field to a generic 'fallbackId' in the response
+        return {
+          ...settings,
+          fallbackId: settings[fallbackFieldName]
+        };
+      } else {
+        const settings = await this.settingsRepository.create({
+          data: {
+            ...settingsData,
+            instanceId: instanceId,
+          },
+        });
+
+        // Map the specific fallback field to a generic 'fallbackId' in the response
+        return {
+          ...settings,
+          fallbackId: settings[fallbackFieldName]
+        };
+      }
+    } catch (error) {
+      this.logger.error(error);
+      throw new Error('Error setting default settings');
+    }
+  }
+
+  // Abstract method to get the field name for the fallback ID
+  protected abstract getFallbackFieldName(): string;
+
+  // Abstract method to get the integration type (dify, n8n, evoai, etc.)
+  protected abstract getIntegrationType(): string;
+
+  // Common implementation for fetchSettings
+  public async fetchSettings(instance: InstanceDto) {
+    if (!this.integrationEnabled) throw new BadRequestException(`${this.integrationName} is disabled`);
+
+    try {
+      const instanceId = await this.prismaRepository.instance
+        .findFirst({
+          where: {
+            name: instance.instanceName,
+          },
+        })
+        .then((instance) => instance.id);
+
+      const settings = await this.settingsRepository.findFirst({
+        where: {
+          instanceId: instanceId,
+        },
+        include: {
+          Fallback: true,
+        },
+      });
+
+      // Get the name of the fallback field for this integration type
+      const fallbackFieldName = this.getFallbackFieldName();
+
+      if (!settings) {
+        return {
+          expire: 300,
+          keywordFinish: ['bye', 'exit', 'quit', 'stop'],
+          delayMessage: 1000,
+          unknownMessage: 'Sorry, I dont understand',
+          listeningFromMe: true,
+          stopBotFromMe: true,
+          keepOpen: false,
+          debounceTime: 1,
+          ignoreJids: [],
+          splitMessages: false,
+          timePerChar: 0,
+          fallbackId: '',
+          fallback: null,
+        };
+      }
+
+      // Return with standardized fallbackId field
+      return {
+        ...settings,
+        fallbackId: settings[fallbackFieldName],
+        fallback: settings.Fallback,
+      };
+    } catch (error) {
+      this.logger.error(error);
+      throw new Error('Error fetching settings');
+    }
+  }
+
+  // Common implementation for changeStatus
+  public async changeStatus(instance: InstanceDto, data: any) {
+    if (!this.integrationEnabled) throw new BadRequestException(`${this.integrationName} is disabled`);
+
+    try {
+      const instanceId = await this.prismaRepository.instance
+        .findFirst({
+          where: {
+            name: instance.instanceName,
+          },
+        })
+        .then((instance) => instance.id);
+
+      const defaultSettingCheck = await this.settingsRepository.findFirst({
+        where: {
+          instanceId,
+        },
+      });
+
+      const remoteJid = data.remoteJid;
+      const status = data.status;
+
+      if (status === 'delete') {
+        await this.sessionRepository.deleteMany({
+          where: {
+            remoteJid: remoteJid,
+            botId: { not: null },
+          },
+        });
+
+        return { bot: { remoteJid: remoteJid, status: status } };
+      }
+
+      if (status === 'closed') {
+        if (defaultSettingCheck?.keepOpen) {
+          await this.sessionRepository.updateMany({
+            where: {
+              remoteJid: remoteJid,
+              botId: { not: null },
+            },
+            data: {
+              status: 'closed',
+            },
+          });
+        } else {
+          await this.sessionRepository.deleteMany({
+            where: {
+              remoteJid: remoteJid,
+              botId: { not: null },
+            },
+          });
+        }
+
+        return { bot: { ...instance, bot: { remoteJid: remoteJid, status: status } } };
+      } else {
+        const session = await this.sessionRepository.updateMany({
+          where: {
+            instanceId: instanceId,
+            remoteJid: remoteJid,
+            botId: { not: null },
+          },
+          data: {
+            status: status,
+          },
+        });
+
+        const botData = {
+          remoteJid: remoteJid,
+          status: status,
+          session,
+        };
+
+        return { bot: { ...instance, bot: botData } };
+      }
+    } catch (error) {
+      this.logger.error(error);
+      throw new Error(`Error changing ${this.integrationName} status`);
+    }
+  }
+
+  // Common implementation for fetchSessions
+  public async fetchSessions(instance: InstanceDto, botId: string, remoteJid?: string) {
+    if (!this.integrationEnabled) throw new BadRequestException(`${this.integrationName} is disabled`);
+
+    try {
+      const instanceId = await this.prismaRepository.instance
+        .findFirst({
+          where: {
+            name: instance.instanceName,
+          },
+        })
+        .then((instance) => instance.id);
+
+      const bot = await this.botRepository.findFirst({
+        where: {
+          id: botId,
+        },
+      });
+
+      if (bot && bot.instanceId !== instanceId) {
+        throw new Error(`${this.integrationName} not found`);
+      }
+
+      // Get the integration type (dify, n8n, evoai, etc.)
+      const integrationType = this.getIntegrationType();
+
+      return await this.sessionRepository.findMany({
+        where: {
+          instanceId: instanceId,
+          remoteJid,
+          botId: bot ? botId : { not: null },
+          type: integrationType,
+        },
+      });
+    } catch (error) {
+      this.logger.error(error);
+      throw new Error('Error fetching sessions');
+    }
+  }
+
+  // Common implementation for ignoreJid
+  public async ignoreJid(instance: InstanceDto, data: IgnoreJidDto) {
+    if (!this.integrationEnabled) throw new BadRequestException(`${this.integrationName} is disabled`);
+
+    try {
+      const instanceId = await this.prismaRepository.instance
+        .findFirst({
+          where: {
+            name: instance.instanceName,
+          },
+        })
+        .then((instance) => instance.id);
+
+      const settings = await this.settingsRepository.findFirst({
+        where: {
+          instanceId: instanceId,
+        },
+      });
+
+      if (!settings) {
+        throw new Error('Settings not found');
+      }
+
+      let ignoreJids: any = settings?.ignoreJids || [];
+
+      if (data.action === 'add') {
+        if (ignoreJids.includes(data.remoteJid)) return { ignoreJids: ignoreJids };
+
+        ignoreJids.push(data.remoteJid);
+      } else {
+        ignoreJids = ignoreJids.filter((jid) => jid !== data.remoteJid);
+      }
+
+      const updateSettings = await this.settingsRepository.update({
+        where: {
+          id: settings.id,
+        },
+        data: {
+          ignoreJids: ignoreJids,
+        },
+      });
+
+      return {
+        ignoreJids: updateSettings.ignoreJids,
+      };
+    } catch (error) {
+      this.logger.error(error);
+      throw new Error('Error setting default settings');
+    }
+  }
+
+  // Base implementation for updateBot
+  public async updateBot(instance: InstanceDto, botId: string, data: BotData) {
+    if (!this.integrationEnabled) throw new BadRequestException(`${this.integrationName} is disabled`);
+
+    try {
+      const instanceId = await this.prismaRepository.instance
+        .findFirst({
+          where: {
+            name: instance.instanceName,
+          },
+        })
+        .then((instance) => instance.id);
+
+      const bot = await this.botRepository.findFirst({
+        where: {
+          id: botId,
+        },
+      });
+
+      if (!bot) {
+        throw new Error(`${this.integrationName} not found`);
+      }
+
+      if (bot.instanceId !== instanceId) {
+        throw new Error(`${this.integrationName} not found`);
+      }
+
+      // Check for "all" trigger type conflicts
+      if (data.triggerType === 'all') {
+        const checkTriggerAll = await this.botRepository.findFirst({
+          where: {
+            enabled: true,
+            triggerType: 'all',
+            id: {
+              not: botId,
+            },
+            instanceId: instanceId,
+          },
+        });
+
+        if (checkTriggerAll) {
+          throw new Error(`You already have a ${this.integrationName} with an "All" trigger, you cannot have more bots while it is active`);
+        }
+      }
+
+      // Let subclasses check for integration-specific duplicates
+      await this.validateNoDuplicatesOnUpdate(botId, instanceId, data);
+
+      // Check for keyword trigger duplicates
+      if (data.triggerType === 'keyword') {
+        if (!data.triggerOperator || !data.triggerValue) {
+          throw new Error('Trigger operator and value are required');
+        }
+
+        const checkDuplicate = await this.botRepository.findFirst({
+          where: {
+            triggerOperator: data.triggerOperator,
+            triggerValue: data.triggerValue,
+            id: { not: botId },
+            instanceId: instanceId,
+          },
+        });
+
+        if (checkDuplicate) {
+          throw new Error('Trigger already exists');
+        }
+      }
+
+      // Check for advanced trigger duplicates
+      if (data.triggerType === 'advanced') {
+        if (!data.triggerValue) {
+          throw new Error('Trigger value is required');
+        }
+
+        const checkDuplicate = await this.botRepository.findFirst({
+          where: {
+            triggerValue: data.triggerValue,
+            id: { not: botId },
+            instanceId: instanceId,
+          },
+        });
+
+        if (checkDuplicate) {
+          throw new Error('Trigger already exists');
+        }
+      }
+
+      // Combine common fields with bot-specific fields
+      const updateData = {
+        enabled: data?.enabled,
+        description: data.description,
+        expire: data.expire,
+        keywordFinish: data.keywordFinish,
+        delayMessage: data.delayMessage,
+        unknownMessage: data.unknownMessage,
+        listeningFromMe: data.listeningFromMe,
+        stopBotFromMe: data.stopBotFromMe,
+        keepOpen: data.keepOpen,
+        debounceTime: data.debounceTime,
+        instanceId: instanceId,
+        triggerType: data.triggerType,
+        triggerOperator: data.triggerOperator,
+        triggerValue: data.triggerValue,
+        ignoreJids: data.ignoreJids,
+        splitMessages: data.splitMessages,
+        timePerChar: data.timePerChar,
+        ...this.getAdditionalUpdateFields(data),
+      };
+
+      const updatedBot = await this.botRepository.update({
+        where: {
+          id: botId,
+        },
+        data: updateData,
+      });
+
+      return updatedBot;
+    } catch (error) {
+      this.logger.error(error);
+      throw new Error(`Error updating ${this.integrationName}`);
+    }
+  }
+
+  // Abstract method for validating bot-specific duplicates on update
+  protected abstract validateNoDuplicatesOnUpdate(botId: string, instanceId: string, data: BotData): Promise<void>;
+
+  // Abstract method for getting additional fields for update
+  protected abstract getAdditionalUpdateFields(data: BotData): Record<string, any>;
+
+  // Base implementation for deleteBot
+  public async deleteBot(instance: InstanceDto, botId: string) {
+    if (!this.integrationEnabled) throw new BadRequestException(`${this.integrationName} is disabled`);
+
+    try {
+      const instanceId = await this.prismaRepository.instance
+        .findFirst({
+          where: {
+            name: instance.instanceName,
+          },
+        })
+        .then((instance) => instance.id);
+
+      const bot = await this.botRepository.findFirst({
+        where: {
+          id: botId,
+        },
+      });
+
+      if (!bot) {
+        throw new Error(`${this.integrationName} not found`);
+      }
+
+      if (bot.instanceId !== instanceId) {
+        throw new Error(`${this.integrationName} not found`);
+      }
+
+      await this.prismaRepository.integrationSession.deleteMany({
+        where: {
+          botId: botId,
+        },
+      });
+
+      await this.botRepository.delete({
+        where: {
+          id: botId,
+        },
+      });
+
+      return { bot: { id: botId } };
+    } catch (error) {
+      this.logger.error(error);
+      throw new Error(`Error deleting ${this.integrationName} bot`);
+    }
+  }
+
+  // Base implementation for emit
+  public async emit({ instance, remoteJid, msg }: EmitData) {
+    if (!this.integrationEnabled) return;
+
+    try {
+      const settings = await this.settingsRepository.findFirst({
+        where: {
+          instanceId: instance.instanceId,
+        },
+      });
+
+      if (this.checkIgnoreJids(settings?.ignoreJids, remoteJid)) return;
+
+      const session = await this.getSession(remoteJid, instance);
+      
+      const content = getConversationMessage(msg);
+      
+      // Get integration type
+      const integrationType = this.getIntegrationType();
+      
+      // Find a bot for this message
+      let findBot: any = await this.findBotTrigger(this.botRepository, content, instance, session);
+      
+      // If no bot is found, try to use fallback
+      if (!findBot) {
+        const fallback = await this.settingsRepository.findFirst({
+          where: {
+            instanceId: instance.instanceId,
+          },
+        });
+
+        // Get the fallback ID for this integration type
+        const fallbackId = this.getFallbackBotId(fallback);
+        
+        if (fallbackId) {
+          const findFallback = await this.botRepository.findFirst({
+            where: {
+              id: fallbackId,
+            },
+          });
+
+          findBot = findFallback;
+        } else {
+          return;
+        }
+      }
+      
+      // If we still don't have a bot, return
+      if (!findBot) {
+        return;
+      }
+
+      // Collect settings with fallbacks to default settings
+      let expire = findBot.expire;
+      let keywordFinish = findBot.keywordFinish;
+      let delayMessage = findBot.delayMessage;
+      let unknownMessage = findBot.unknownMessage;
+      let listeningFromMe = findBot.listeningFromMe;
+      let stopBotFromMe = findBot.stopBotFromMe;
+      let keepOpen = findBot.keepOpen;
+      let debounceTime = findBot.debounceTime;
+      let ignoreJids = findBot.ignoreJids;
+      let splitMessages = findBot.splitMessages;
+      let timePerChar = findBot.timePerChar;
+
+      if (expire === undefined || expire === null) expire = settings.expire;
+      if (keywordFinish === undefined || keywordFinish === null) keywordFinish = settings.keywordFinish;
+      if (delayMessage === undefined || delayMessage === null) delayMessage = settings.delayMessage;
+      if (unknownMessage === undefined || unknownMessage === null) unknownMessage = settings.unknownMessage;
+      if (listeningFromMe === undefined || listeningFromMe === null) listeningFromMe = settings.listeningFromMe;
+      if (stopBotFromMe === undefined || stopBotFromMe === null) stopBotFromMe = settings.stopBotFromMe;
+      if (keepOpen === undefined || keepOpen === null) keepOpen = settings.keepOpen;
+      if (debounceTime === undefined || debounceTime === null) debounceTime = settings.debounceTime;
+      if (ignoreJids === undefined || ignoreJids === null) ignoreJids = settings.ignoreJids;
+      if (splitMessages === undefined || splitMessages === null) splitMessages = settings?.splitMessages ?? false;
+      if (timePerChar === undefined || timePerChar === null) timePerChar = settings?.timePerChar ?? 0;
+
+      const key = msg.key as {
+        id: string;
+        remoteJid: string;
+        fromMe: boolean;
+        participant: string;
+      };
+
+      // Handle stopping the bot if message is from me
+      if (stopBotFromMe && key.fromMe && session) {
+        await this.prismaRepository.integrationSession.update({
+          where: {
+            id: session.id,
+          },
+          data: {
+            status: 'paused',
+          },
+        });
+        return;
+      }
+
+      // Skip if not listening to messages from me
+      if (!listeningFromMe && key.fromMe) {
+        return;
+      }
+
+      // Skip if session exists but not awaiting user input
+      if (session && !session.awaitUser) {
+        return;
+      }
+
+      // Merged settings
+      const mergedSettings = {
+        ...settings,
+        expire,
+        keywordFinish,
+        delayMessage,
+        unknownMessage,
+        listeningFromMe,
+        stopBotFromMe,
+        keepOpen,
+        debounceTime,
+        ignoreJids,
+        splitMessages,
+        timePerChar,
+      };
+
+      // Process with debounce if needed
+      if (debounceTime && debounceTime > 0) {
+        this.processDebounce(this.userMessageDebounce, content, remoteJid, debounceTime, async (debouncedContent) => {
+          await this.processBot(
+            this.waMonitor.waInstances[instance.instanceName],
+            remoteJid,
+            findBot,
+            session,
+            mergedSettings,
+            debouncedContent,
+            msg?.pushName,
+            msg,
+          );
+        });
+      } else {
+        await this.processBot(
+          this.waMonitor.waInstances[instance.instanceName],
+          remoteJid,
+          findBot,
+          session,
+          mergedSettings,
+          content,
+          msg?.pushName,
+          msg,
+        );
+      }
+    } catch (error) {
+      this.logger.error(error);
+    }
+  }
+} 

src/api/integrations/chatbot/base-chatbot.dto.ts

@@ -0,0 +1,42 @@
+import { TriggerOperator, TriggerType } from '@prisma/client';
+
+/**
+ * Base DTO for all chatbot integrations
+ * Contains common properties shared by all chatbot types
+ */
+export class BaseChatbotDto {
+  enabled?: boolean;
+  description: string;
+  expire?: number;
+  keywordFinish?: string[];
+  delayMessage?: number;
+  unknownMessage?: string;
+  listeningFromMe?: boolean;
+  stopBotFromMe?: boolean;
+  keepOpen?: boolean;
+  debounceTime?: number;
+  triggerType: TriggerType;
+  triggerOperator?: TriggerOperator;
+  triggerValue?: string;
+  ignoreJids?: string[];
+  splitMessages?: boolean;
+  timePerChar?: number;
+}
+
+/**
+ * Base settings DTO for all chatbot integrations
+ */
+export class BaseChatbotSettingDto {
+  expire?: number;
+  keywordFinish?: string[];
+  delayMessage?: number;
+  unknownMessage?: string;
+  listeningFromMe?: boolean;
+  stopBotFromMe?: boolean;
+  keepOpen?: boolean;
+  debounceTime?: number;
+  ignoreJids?: any;
+  splitMessages?: boolean;
+  timePerChar?: number;
+  fallbackId?: string; // Unified fallback ID field for all integrations
+} 

src/api/integrations/chatbot/base-chatbot.service.ts

@@ -0,0 +1,443 @@
+import { InstanceDto } from '@api/dto/instance.dto';
+import { PrismaRepository } from '@api/repository/repository.service';
+import { WAMonitoringService } from '@api/services/monitor.service';
+import { ConfigService, Language } from '@config/env.config';
+import { Logger } from '@config/logger.config';
+import { IntegrationSession } from '@prisma/client';
+import { Integration } from '@api/types/wa.types';
+import axios from 'axios';
+import FormData from 'form-data';
+
+/**
+ * Base class for all chatbot service implementations
+ * Contains common methods shared across different chatbot integrations
+ */
+export abstract class BaseChatbotService<BotType = any, SettingsType = any> {
+  protected readonly logger: Logger;
+  protected readonly waMonitor: WAMonitoringService;
+  protected readonly prismaRepository: PrismaRepository;
+  protected readonly configService?: ConfigService;
+  
+  constructor(
+    waMonitor: WAMonitoringService,
+    prismaRepository: PrismaRepository,
+    loggerName: string,
+    configService?: ConfigService,
+  ) {
+    this.waMonitor = waMonitor;
+    this.prismaRepository = prismaRepository;
+    this.logger = new Logger(loggerName);
+    this.configService = configService;
+  }
+
+  /**
+   * Check if a message contains an image
+   */
+  protected isImageMessage(content: string): boolean {
+    return content.includes('imageMessage');
+  }
+
+  /**
+   * Check if a message contains audio
+   */
+  protected isAudioMessage(content: string): boolean {
+    return content.includes('audioMessage');
+  }
+
+  /**
+   * Check if a string is valid JSON
+   */
+  protected isJSON(str: string): boolean {
+    try {
+      JSON.parse(str);
+      return true;
+    } catch (e) {
+      return false;
+    }
+  }
+
+  /**
+   * Determine the media type from a URL based on its extension
+   */
+  protected getMediaType(url: string): string | null {
+    const extension = url.split('.').pop()?.toLowerCase();
+    const imageExtensions = ['jpg', 'jpeg', 'png', 'gif', 'bmp', 'webp'];
+    const audioExtensions = ['mp3', 'wav', 'aac', 'ogg'];
+    const videoExtensions = ['mp4', 'avi', 'mkv', 'mov'];
+    const documentExtensions = ['pdf', 'doc', 'docx', 'xls', 'xlsx', 'ppt', 'pptx', 'txt'];
+
+    if (imageExtensions.includes(extension || '')) return 'image';
+    if (audioExtensions.includes(extension || '')) return 'audio';
+    if (videoExtensions.includes(extension || '')) return 'video';
+    if (documentExtensions.includes(extension || '')) return 'document';
+    return null;
+  }
+
+  /**
+   * Transcribes audio to text using OpenAI's Whisper API
+   */
+  protected async speechToText(audioBuffer: Buffer): Promise<string | null> {
+    if (!this.configService) {
+      this.logger.error('ConfigService not available for speech-to-text transcription');
+      return null;
+    }
+
+    try {
+      // Try to get the API key from process.env directly since ConfigService might not access it correctly
+      const apiKey = this.configService.get<any>('OPENAI')?.API_KEY || process.env.OPENAI_API_KEY;
+      if (!apiKey) {
+        this.logger.error('No OpenAI API key set for Whisper transcription');
+        return null;
+      }
+      
+      const lang = this.configService.get<Language>('LANGUAGE').includes('pt')
+        ? 'pt'
+        : this.configService.get<Language>('LANGUAGE');
+      
+      const formData = new FormData();
+      formData.append('file', audioBuffer, 'audio.ogg');
+      formData.append('model', 'whisper-1');
+      formData.append('language', lang);
+      
+      const response = await axios.post('https://api.openai.com/v1/audio/transcriptions', formData, {
+        headers: {
+          ...formData.getHeaders(),
+          Authorization: `Bearer ${apiKey}`,
+        },
+      });
+      
+      return response?.data?.text || null;
+    } catch (err) {
+      this.logger.error(`Whisper transcription failed: ${err}`);
+      return null;
+    }
+  }
+
+  /**
+   * Create a new chatbot session
+   */
+  public async createNewSession(instance: InstanceDto | any, data: any, type: string) {
+    try {
+      // Extract pushName safely - if data.pushName is an object with a pushName property, use that
+      const pushNameValue = typeof data.pushName === 'object' && data.pushName?.pushName
+        ? data.pushName.pushName
+        : (typeof data.pushName === 'string' ? data.pushName : null);
+        
+      // Extract remoteJid safely
+      const remoteJidValue = typeof data.remoteJid === 'object' && data.remoteJid?.remoteJid
+        ? data.remoteJid.remoteJid
+        : data.remoteJid;
+
+      const session = await this.prismaRepository.integrationSession.create({
+        data: {
+          remoteJid: remoteJidValue,
+          pushName: pushNameValue,
+          sessionId: remoteJidValue,
+          status: 'opened',
+          awaitUser: false,
+          botId: data.botId,
+          instanceId: instance.instanceId,
+          type: type,
+        },
+      });
+
+      return { session };
+    } catch (error) {
+      this.logger.error(error);
+      return;
+    }
+  }
+
+  /**
+   * Standard implementation for processing incoming messages
+   * This handles the common workflow across all chatbot types:
+   * 1. Check for existing session or create new one
+   * 2. Handle message based on session state
+   */
+  public async process(
+    instance: any,
+    remoteJid: string,
+    bot: BotType,
+    session: IntegrationSession,
+    settings: SettingsType,
+    content: string,
+    pushName?: string,
+    msg?: any,
+  ): Promise<void> {
+    try {
+      // For new sessions or sessions awaiting initialization
+      if (!session || session.status === 'paused') {
+        await this.initNewSession(instance, remoteJid, bot, settings, session, content, pushName, msg);
+        return;
+      }
+
+      // For existing sessions, keywords might indicate the conversation should end
+      const keywordFinish = (settings as any)?.keywordFinish || [];
+      const normalizedContent = content.toLowerCase().trim();
+      if (
+        keywordFinish.length > 0 &&
+        keywordFinish.some((keyword: string) => normalizedContent === keyword.toLowerCase())
+      ) {
+        // Update session to closed and return
+        await this.prismaRepository.integrationSession.update({
+          where: {
+            id: session.id,
+          },
+          data: {
+            status: 'closed',
+          },
+        });
+        return;
+      }
+
+      // Forward the message to the chatbot API
+      await this.sendMessageToBot(instance, session, settings, bot, remoteJid, pushName || '', content, msg);
+    } catch (error) {
+      this.logger.error(`Error in process: ${error}`);
+      return;
+    }
+  }
+
+  /**
+   * Standard implementation for sending messages to WhatsApp
+   * This handles common patterns like markdown links and formatting
+   */
+  protected async sendMessageWhatsApp(
+    instance: any, 
+    remoteJid: string, 
+    message: string, 
+    settings: SettingsType
+  ): Promise<void> {
+    if (!message) return;
+    
+    const linkRegex = /(!?)\[(.*?)\]\((.*?)\)/g;
+    let textBuffer = '';
+    let lastIndex = 0;
+    let match: RegExpExecArray | null;
+    
+    const splitMessages = (settings as any)?.splitMessages ?? false;
+    const timePerChar = (settings as any)?.timePerChar ?? 0;
+    const minDelay = 1000;
+    const maxDelay = 20000;
+
+    while ((match = linkRegex.exec(message)) !== null) {
+      const [fullMatch, exclamation, altText, url] = match;
+      const mediaType = this.getMediaType(url);
+      const beforeText = message.slice(lastIndex, match.index);
+      
+      if (beforeText) {
+        textBuffer += beforeText;
+      }
+      
+      if (mediaType) {
+        // Send accumulated text before sending media
+        if (textBuffer.trim()) {
+          await this.sendFormattedText(instance, remoteJid, textBuffer.trim(), settings, splitMessages);
+          textBuffer = '';
+        }
+        
+        // Handle sending the media
+        try {
+          switch (mediaType) {
+            case 'image':
+              await instance.mediaMessage({
+                number: remoteJid.split('@')[0],
+                delay: (settings as any)?.delayMessage || 1000,
+                caption: altText,
+                media: url,
+              });
+              break;
+            case 'video':
+              await instance.mediaMessage({
+                number: remoteJid.split('@')[0], 
+                delay: (settings as any)?.delayMessage || 1000,
+                caption: altText,
+                media: url,
+              });
+              break;
+            case 'document':
+              await instance.documentMessage({
+                number: remoteJid.split('@')[0],
+                delay: (settings as any)?.delayMessage || 1000,
+                fileName: altText || 'document',
+                media: url,
+              });
+              break;
+            case 'audio':
+              await instance.audioMessage({
+                number: remoteJid.split('@')[0],
+                delay: (settings as any)?.delayMessage || 1000,
+                media: url,
+              });
+              break;
+          }
+        } catch (error) {
+          this.logger.error(`Error sending media: ${error}`);
+          // If media fails, at least send the alt text and URL
+          textBuffer += `${altText}: ${url}`;
+        }
+      } else {
+        // It's a regular link, keep it in the text
+        textBuffer += `[${altText}](${url})`;
+      }
+      
+      lastIndex = match.index + fullMatch.length;
+    }
+    
+    // Add any remaining text after the last match
+    if (lastIndex < message.length) {
+      textBuffer += message.slice(lastIndex);
+    }
+    
+    // Send any remaining text
+    if (textBuffer.trim()) {
+      await this.sendFormattedText(instance, remoteJid, textBuffer.trim(), settings, splitMessages);
+    }
+  }
+  
+  /**
+   * Helper method to send formatted text with proper typing indicators and delays
+   */
+  private async sendFormattedText(
+    instance: any, 
+    remoteJid: string, 
+    text: string, 
+    settings: any, 
+    splitMessages: boolean
+  ): Promise<void> {
+    const timePerChar = settings?.timePerChar ?? 0;
+    const minDelay = 1000;
+    const maxDelay = 20000;
+    
+    if (splitMessages) {
+      const multipleMessages = text.split('\n\n');
+      for (let index = 0; index < multipleMessages.length; index++) {
+        const message = multipleMessages[index];
+        if (!message.trim()) continue;
+        
+        const delay = Math.min(Math.max(message.length * timePerChar, minDelay), maxDelay);
+        
+        if (instance.integration === Integration.WHATSAPP_BAILEYS) {
+          await instance.client.presenceSubscribe(remoteJid);
+          await instance.client.sendPresenceUpdate('composing', remoteJid);
+        }
+        
+        await new Promise<void>((resolve) => {
+          setTimeout(async () => {
+            await instance.textMessage(
+              {
+                number: remoteJid.split('@')[0],
+                delay: settings?.delayMessage || 1000,
+                text: message,
+              },
+              false,
+            );
+            resolve();
+          }, delay);
+        });
+        
+        if (instance.integration === Integration.WHATSAPP_BAILEYS) {
+          await instance.client.sendPresenceUpdate('paused', remoteJid);
+        }
+      }
+    } else {
+      const delay = Math.min(Math.max(text.length * timePerChar, minDelay), maxDelay);
+      
+      if (instance.integration === Integration.WHATSAPP_BAILEYS) {
+        await instance.client.presenceSubscribe(remoteJid);
+        await instance.client.sendPresenceUpdate('composing', remoteJid);
+      }
+      
+      await new Promise<void>((resolve) => {
+        setTimeout(async () => {
+          await instance.textMessage(
+            {
+              number: remoteJid.split('@')[0],
+              delay: settings?.delayMessage || 1000,
+              text: text,
+            },
+            false,
+          );
+          resolve();
+        }, delay);
+      });
+      
+      if (instance.integration === Integration.WHATSAPP_BAILEYS) {
+        await instance.client.sendPresenceUpdate('paused', remoteJid);
+      }
+    }
+  }
+
+  /**
+   * Standard implementation for initializing a new session
+   * This method should be overridden if a subclass needs specific initialization
+   */
+  protected async initNewSession(
+    instance: any,
+    remoteJid: string,
+    bot: BotType,
+    settings: SettingsType,
+    session: IntegrationSession,
+    content: string,
+    pushName?: string | any,
+    msg?: any,
+  ): Promise<void> {
+    // Create a session if none exists
+    if (!session) {
+      // Extract pushName properly - if it's an object with pushName property, use that
+      const pushNameValue = typeof pushName === 'object' && pushName?.pushName
+        ? pushName.pushName
+        : (typeof pushName === 'string' ? pushName : null);
+        
+      session = (
+        await this.createNewSession(
+          { 
+            instanceName: instance.instanceName, 
+            instanceId: instance.instanceId 
+          },
+          {
+            remoteJid,
+            pushName: pushNameValue,
+            botId: (bot as any).id,
+          },
+          this.getBotType(),
+        )
+      )?.session;
+    }
+
+    // Update session status to opened
+    await this.prismaRepository.integrationSession.update({
+      where: {
+        id: session.id,
+      },
+      data: {
+        status: 'opened',
+        awaitUser: false,
+      },
+    });
+
+    // Forward the message to the chatbot
+    await this.sendMessageToBot(instance, session, settings, bot, remoteJid, pushName || '', content, msg);
+  }
+
+  /**
+   * Get the bot type identifier (e.g., 'dify', 'n8n', 'evoai')
+   * This should match the type field used in the IntegrationSession
+   */
+  protected abstract getBotType(): string;
+
+  /**
+   * Send a message to the chatbot API
+   * This is specific to each chatbot integration
+   */
+  protected abstract sendMessageToBot(
+    instance: any,
+    session: IntegrationSession,
+    settings: SettingsType,
+    bot: BotType,
+    remoteJid: string,
+    pushName: string,
+    content: string,
+    msg?: any,
+  ): Promise<void>;
+} 

src/api/integrations/chatbot/dify/controllers/dify.controller.ts

@@ -1,4 +1,4 @@
-import { IgnoreJidDto } from '@api/dto/chatbot.dto';
+
 import { InstanceDto } from '@api/dto/instance.dto';
 import { DifyDto } from '@api/integrations/chatbot/dify/dto/dify.dto';
 import { DifyService } from '@api/integrations/chatbot/dify/services/dify.service';
@@ -7,12 +7,11 @@ import { WAMonitoringService } from '@api/services/monitor.service';
 import { configService, Dify } from '@config/env.config';
 import { Logger } from '@config/logger.config';
 import { BadRequestException } from '@exceptions';
-import { Dify as DifyModel } from '@prisma/client';
-import { getConversationMessage } from '@utils/getConversationMessage';
+import { Dify as DifyModel, IntegrationSession } from '@prisma/client';
 
-import { ChatbotController, ChatbotControllerInterface, EmitData } from '../../chatbot.controller';
+import { BaseChatbotController } from '../../base-chatbot.controller';
 
-export class DifyController extends ChatbotController implements ChatbotControllerInterface {
+export class DifyController extends BaseChatbotController<DifyModel, DifyDto> {
   constructor(
     private readonly difyService: DifyService,
     prismaRepository: PrismaRepository,
@@ -26,6 +25,7 @@ export class DifyController extends ChatbotController implements ChatbotControll
   }
 
   public readonly logger = new Logger('DifyController');
+  protected readonly integrationName = 'Dify';
 
   integrationEnabled = configService.get<Dify>('DIFY').ENABLED;
   botRepository: any;
@@ -33,6 +33,54 @@ export class DifyController extends ChatbotController implements ChatbotControll
   sessionRepository: any;
   userMessageDebounce: { [key: string]: { message: string; timeoutId: NodeJS.Timeout } } = {};
 
+  protected getFallbackBotId(settings: any): string | undefined {
+    return settings?.fallbackId;
+  }
+
+  protected getFallbackFieldName(): string {
+    return 'difyIdFallback';
+  }
+
+  protected getIntegrationType(): string {
+    return 'dify';
+  }
+
+  protected getAdditionalBotData(data: DifyDto): Record<string, any> {
+    return {
+      botType: data.botType,
+      apiUrl: data.apiUrl,
+      apiKey: data.apiKey,
+    };
+  }
+
+  // Implementation for bot-specific updates
+  protected getAdditionalUpdateFields(data: DifyDto): Record<string, any> {
+    return {
+      botType: data.botType,
+      apiUrl: data.apiUrl,
+      apiKey: data.apiKey,
+    };
+  }
+
+  // Implementation for bot-specific duplicate validation on update
+  protected async validateNoDuplicatesOnUpdate(botId: string, instanceId: string, data: DifyDto): Promise<void> {
+    const checkDuplicate = await this.botRepository.findFirst({
+      where: {
+        id: {
+          not: botId,
+        },
+        instanceId: instanceId,
+        botType: data.botType,
+        apiUrl: data.apiUrl,
+        apiKey: data.apiKey,
+      },
+    });
+
+    if (checkDuplicate) {
+      throw new Error('Dify already exists');
+    }
+  }
+
   // Bots
   public async createBot(instance: InstanceDto, data: DifyDto) {
     if (!this.integrationEnabled) throw new BadRequestException('Dify is disabled');
@@ -45,74 +93,7 @@ export class DifyController extends ChatbotController implements ChatbotControll
       })
       .then((instance) => instance.id);
 
-    if (
-      !data.expire ||
-      !data.keywordFinish ||
-      !data.delayMessage ||
-      !data.unknownMessage ||
-      !data.listeningFromMe ||
-      !data.stopBotFromMe ||
-      !data.keepOpen ||
-      !data.debounceTime ||
-      !data.ignoreJids ||
-      !data.splitMessages ||
-      !data.timePerChar
-    ) {
-      const defaultSettingCheck = await this.settingsRepository.findFirst({
-        where: {
-          instanceId: instanceId,
-        },
-      });
-
-      if (data.expire === undefined || data.expire === null) data.expire = defaultSettingCheck.expire;
-      if (data.keywordFinish === undefined || data.keywordFinish === null)
-        data.keywordFinish = defaultSettingCheck.keywordFinish;
-      if (data.delayMessage === undefined || data.delayMessage === null)
-        data.delayMessage = defaultSettingCheck.delayMessage;
-      if (data.unknownMessage === undefined || data.unknownMessage === null)
-        data.unknownMessage = defaultSettingCheck.unknownMessage;
-      if (data.listeningFromMe === undefined || data.listeningFromMe === null)
-        data.listeningFromMe = defaultSettingCheck.listeningFromMe;
-      if (data.stopBotFromMe === undefined || data.stopBotFromMe === null)
-        data.stopBotFromMe = defaultSettingCheck.stopBotFromMe;
-      if (data.keepOpen === undefined || data.keepOpen === null) data.keepOpen = defaultSettingCheck.keepOpen;
-      if (data.debounceTime === undefined || data.debounceTime === null)
-        data.debounceTime = defaultSettingCheck.debounceTime;
-      if (data.ignoreJids === undefined || data.ignoreJids === null) data.ignoreJids = defaultSettingCheck.ignoreJids;
-      if (data.splitMessages === undefined || data.splitMessages === null)
-        data.splitMessages = defaultSettingCheck?.splitMessages ?? false;
-      if (data.timePerChar === undefined || data.timePerChar === null)
-        data.timePerChar = defaultSettingCheck?.timePerChar ?? 0;
-
-      if (!defaultSettingCheck) {
-        await this.settings(instance, {
-          expire: data.expire,
-          keywordFinish: data.keywordFinish,
-          delayMessage: data.delayMessage,
-          unknownMessage: data.unknownMessage,
-          listeningFromMe: data.listeningFromMe,
-          stopBotFromMe: data.stopBotFromMe,
-          keepOpen: data.keepOpen,
-          debounceTime: data.debounceTime,
-          ignoreJids: data.ignoreJids,
-          splitMessages: data.splitMessages,
-          timePerChar: data.timePerChar,
-        });
-      }
-    }
-
-    const checkTriggerAll = await this.botRepository.findFirst({
-      where: {
-        enabled: true,
-        triggerType: 'all',
-        instanceId: instanceId,
-      },
-    });
-
-    if (checkTriggerAll && data.triggerType === 'all') {
-      throw new Error('You already have a dify with an "All" trigger, you cannot have more bots while it is active');
-    }
-
+    // Check for Dify-specific duplicate
     const checkDuplicate = await this.botRepository.findFirst({
       where: {
         instanceId: instanceId,
@@ -126,72 +107,8 @@ export class DifyController extends ChatbotController implements ChatbotControll
       throw new Error('Dify already exists');
     }
 
-    if (data.triggerType === 'keyword') {
-      if (!data.triggerOperator || !data.triggerValue) {
-        throw new Error('Trigger operator and value are required');
-      }
-
-      const checkDuplicate = await this.botRepository.findFirst({
-        where: {
-          triggerOperator: data.triggerOperator,
-          triggerValue: data.triggerValue,
-          instanceId: instanceId,
-        },
-      });
-
-      if (checkDuplicate) {
-        throw new Error('Trigger already exists');
-      }
-    }
-
-    if (data.triggerType === 'advanced') {
-      if (!data.triggerValue) {
-        throw new Error('Trigger value is required');
-      }
-
-      const checkDuplicate = await this.botRepository.findFirst({
-        where: {
-          triggerValue: data.triggerValue,
-          instanceId: instanceId,
-        },
-      });
-
-      if (checkDuplicate) {
-        throw new Error('Trigger already exists');
-      }
-    }
-
-    try {
-      const bot = await this.botRepository.create({
-        data: {
-          enabled: data?.enabled,
-          description: data.description,
-          botType: data.botType,
-          apiUrl: data.apiUrl,
-          apiKey: data.apiKey,
-          expire: data.expire,
-          keywordFinish: data.keywordFinish,
-          delayMessage: data.delayMessage,
-          unknownMessage: data.unknownMessage,
-          listeningFromMe: data.listeningFromMe,
-          stopBotFromMe: data.stopBotFromMe,
-          keepOpen: data.keepOpen,
-          debounceTime: data.debounceTime,
-          instanceId: instanceId,
-          triggerType: data.triggerType,
-          triggerOperator: data.triggerOperator,
-          triggerValue: data.triggerValue,
-          ignoreJids: data.ignoreJids,
-          splitMessages: data.splitMessages,
-          timePerChar: data.timePerChar,
-        },
-      });
-
-      return bot;
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error creating dify');
-    }
+    // Let the base class handle the rest of the bot creation process
+    return super.createBot(instance, data);
   }
 
   public async findBot(instance: InstanceDto) {
@@ -246,643 +163,17 @@ export class DifyController extends ChatbotController implements ChatbotControll
     return bot;
   }
 
-  public async updateBot(instance: InstanceDto, botId: string, data: DifyDto) {
-    if (!this.integrationEnabled) throw new BadRequestException('Dify is disabled');
-
-    const instanceId = await this.prismaRepository.instance
-      .findFirst({
-        where: {
-          name: instance.instanceName,
-        },
-      })
-      .then((instance) => instance.id);
-
-    const bot = await this.botRepository.findFirst({
-      where: {
-        id: botId,
-      },
-    });
-
-    if (!bot) {
-      throw new Error('Dify not found');
-    }
-
-    if (bot.instanceId !== instanceId) {
-      throw new Error('Dify not found');
-    }
-
-    if (data.triggerType === 'all') {
-      const checkTriggerAll = await this.botRepository.findFirst({
-        where: {
-          enabled: true,
-          triggerType: 'all',
-          id: {
-            not: botId,
-          },
-          instanceId: instanceId,
-        },
-      });
-
-      if (checkTriggerAll) {
-        throw new Error('You already have a dify with an "All" trigger, you cannot have more bots while it is active');
-      }
-    }
-
-    const checkDuplicate = await this.botRepository.findFirst({
-      where: {
-        id: {
-          not: botId,
-        },
-        instanceId: instanceId,
-        botType: data.botType,
-        apiUrl: data.apiUrl,
-        apiKey: data.apiKey,
-      },
-    });
-
-    if (checkDuplicate) {
-      throw new Error('Dify already exists');
-    }
-
-    if (data.triggerType === 'keyword') {
-      if (!data.triggerOperator || !data.triggerValue) {
-        throw new Error('Trigger operator and value are required');
-      }
-
-      const checkDuplicate = await this.botRepository.findFirst({
-        where: {
-          triggerOperator: data.triggerOperator,
-          triggerValue: data.triggerValue,
-          id: { not: botId },
-          instanceId: instanceId,
-        },
-      });
-
-      if (checkDuplicate) {
-        throw new Error('Trigger already exists');
-      }
-    }
-
-    if (data.triggerType === 'advanced') {
-      if (!data.triggerValue) {
-        throw new Error('Trigger value is required');
-      }
-
-      const checkDuplicate = await this.botRepository.findFirst({
-        where: {
-          triggerValue: data.triggerValue,
-          id: { not: botId },
-          instanceId: instanceId,
-        },
-      });
-
-      if (checkDuplicate) {
-        throw new Error('Trigger already exists');
-      }
-    }
-
-    try {
-      const bot = await this.botRepository.update({
-        where: {
-          id: botId,
-        },
-        data: {
-          enabled: data?.enabled,
-          description: data.description,
-          botType: data.botType,
-          apiUrl: data.apiUrl,
-          apiKey: data.apiKey,
-          expire: data.expire,
-          keywordFinish: data.keywordFinish,
-          delayMessage: data.delayMessage,
-          unknownMessage: data.unknownMessage,
-          listeningFromMe: data.listeningFromMe,
-          stopBotFromMe: data.stopBotFromMe,
-          keepOpen: data.keepOpen,
-          debounceTime: data.debounceTime,
-          instanceId: instanceId,
-          triggerType: data.triggerType,
-          triggerOperator: data.triggerOperator,
-          triggerValue: data.triggerValue,
-          ignoreJids: data.ignoreJids,
-          splitMessages: data.splitMessages,
-          timePerChar: data.timePerChar,
-        },
-      });
-
-      return bot;
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error updating dify');
-    }
-  }
-
-  public async deleteBot(instance: InstanceDto, botId: string) {
-    if (!this.integrationEnabled) throw new BadRequestException('Dify is disabled');
-
-    const instanceId = await this.prismaRepository.instance
-      .findFirst({
-        where: {
-          name: instance.instanceName,
-        },
-      })
-      .then((instance) => instance.id);
-
-    const bot = await this.botRepository.findFirst({
-      where: {
-        id: botId,
-      },
-    });
-
-    if (!bot) {
-      throw new Error('Dify not found');
-    }
-
-    if (bot.instanceId !== instanceId) {
-      throw new Error('Dify not found');
-    }
-    try {
-      await this.prismaRepository.integrationSession.deleteMany({
-        where: {
-          botId: botId,
-        },
-      });
-
-      await this.botRepository.delete({
-        where: {
-          id: botId,
-        },
-      });
-
-      return { bot: { id: botId } };
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error deleting dify bot');
-    }
-  }
-
-  // Settings
-  public async settings(instance: InstanceDto, data: any) {
-    if (!this.integrationEnabled) throw new BadRequestException('Dify is disabled');
-
-    try {
-      const instanceId = await this.prismaRepository.instance
-        .findFirst({
-          where: {
-            name: instance.instanceName,
-          },
-        })
-        .then((instance) => instance.id);
-
-      const settings = await this.settingsRepository.findFirst({
-        where: {
-          instanceId: instanceId,
-        },
-      });
-
-      if (settings) {
-        const updateSettings = await this.settingsRepository.update({
-          where: {
-            id: settings.id,
-          },
-          data: {
-            expire: data.expire,
-            keywordFinish: data.keywordFinish,
-            delayMessage: data.delayMessage,
-            unknownMessage: data.unknownMessage,
-            listeningFromMe: data.listeningFromMe,
-            stopBotFromMe: data.stopBotFromMe,
-            keepOpen: data.keepOpen,
-            debounceTime: data.debounceTime,
-            difyIdFallback: data.difyIdFallback,
-            ignoreJids: data.ignoreJids,
-            splitMessages: data.splitMessages,
-            timePerChar: data.timePerChar,
-          },
-        });
-
-        return {
-          expire: updateSettings.expire,
-          keywordFinish: updateSettings.keywordFinish,
-          delayMessage: updateSettings.delayMessage,
-          unknownMessage: updateSettings.unknownMessage,
-          listeningFromMe: updateSettings.listeningFromMe,
-          stopBotFromMe: updateSettings.stopBotFromMe,
-          keepOpen: updateSettings.keepOpen,
-          debounceTime: updateSettings.debounceTime,
-          difyIdFallback: updateSettings.difyIdFallback,
-          ignoreJids: updateSettings.ignoreJids,
-          splitMessages: updateSettings.splitMessages,
-          timePerChar: updateSettings.timePerChar,
-        };
-      }
-
-      const newSetttings = await this.settingsRepository.create({
-        data: {
-          expire: data.expire,
-          keywordFinish: data.keywordFinish,
-          delayMessage: data.delayMessage,
-          unknownMessage: data.unknownMessage,
-          listeningFromMe: data.listeningFromMe,
-          stopBotFromMe: data.stopBotFromMe,
-          keepOpen: data.keepOpen,
-          debounceTime: data.debounceTime,
-          difyIdFallback: data.difyIdFallback,
-          ignoreJids: data.ignoreJids,
-          instanceId: instanceId,
-          splitMessages: data.splitMessages,
-          timePerChar: data.timePerChar,
-        },
-      });
-
-      return {
-        expire: newSetttings.expire,
-        keywordFinish: newSetttings.keywordFinish,
-        delayMessage: newSetttings.delayMessage,
-        unknownMessage: newSetttings.unknownMessage,
-        listeningFromMe: newSetttings.listeningFromMe,
-        stopBotFromMe: newSetttings.stopBotFromMe,
-        keepOpen: newSetttings.keepOpen,
-        debounceTime: newSetttings.debounceTime,
-        difyIdFallback: newSetttings.difyIdFallback,
-        ignoreJids: newSetttings.ignoreJids,
-        splitMessages: newSetttings.splitMessages,
-        timePerChar: newSetttings.timePerChar,
-      };
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error setting default settings');
-    }
-  }
-
-  public async fetchSettings(instance: InstanceDto) {
-    if (!this.integrationEnabled) throw new BadRequestException('Dify is disabled');
-
-    try {
-      const instanceId = await this.prismaRepository.instance
-        .findFirst({
-          where: {
-            name: instance.instanceName,
-          },
-        })
-        .then((instance) => instance.id);
-
-      const settings = await this.settingsRepository.findFirst({
-        where: {
-          instanceId: instanceId,
-        },
-        include: {
-          Fallback: true,
-        },
-      });
-
-      if (!settings) {
-        return {
-          expire: 0,
-          keywordFinish: '',
-          delayMessage: 0,
-          unknownMessage: '',
-          listeningFromMe: false,
-          stopBotFromMe: false,
-          keepOpen: false,
-          ignoreJids: [],
-          splitMessages: false,
-          timePerChar: 0,
-          difyIdFallback: '',
-          fallback: null,
-        };
-      }
-
-      return {
-        expire: settings.expire,
-        keywordFinish: settings.keywordFinish,
-        delayMessage: settings.delayMessage,
-        unknownMessage: settings.unknownMessage,
-        listeningFromMe: settings.listeningFromMe,
-        stopBotFromMe: settings.stopBotFromMe,
-        keepOpen: settings.keepOpen,
-        ignoreJids: settings.ignoreJids,
-        splitMessages: settings.splitMessages,
-        timePerChar: settings.timePerChar,
-        difyIdFallback: settings.difyIdFallback,
-        fallback: settings.Fallback,
-      };
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error fetching default settings');
-    }
-  }
-
-  // Sessions
-  public async changeStatus(instance: InstanceDto, data: any) {
-    if (!this.integrationEnabled) throw new BadRequestException('Dify is disabled');
-
-    try {
-      const instanceId = await this.prismaRepository.instance
-        .findFirst({
-          where: {
-            name: instance.instanceName,
-          },
-        })
-        .then((instance) => instance.id);
-
-      const defaultSettingCheck = await this.settingsRepository.findFirst({
-        where: {
-          instanceId,
-        },
-      });
-
-      const remoteJid = data.remoteJid;
-      const status = data.status;
-
-      if (status === 'delete') {
-        await this.sessionRepository.deleteMany({
-          where: {
-            remoteJid: remoteJid,
-            botId: { not: null },
-          },
-        });
-
-        return { bot: { remoteJid: remoteJid, status: status } };
-      }
-
-      if (status === 'closed') {
-        if (defaultSettingCheck?.keepOpen) {
-          await this.sessionRepository.updateMany({
-            where: {
-              remoteJid: remoteJid,
-              botId: { not: null },
-            },
-            data: {
-              status: 'closed',
-            },
-          });
-        } else {
-          await this.sessionRepository.deleteMany({
-            where: {
-              remoteJid: remoteJid,
-              botId: { not: null },
-            },
-          });
-        }
-
-        return { bot: { ...instance, bot: { remoteJid: remoteJid, status: status } } };
-      } else {
-        const session = await this.sessionRepository.updateMany({
-          where: {
-            instanceId: instanceId,
-            remoteJid: remoteJid,
-            botId: { not: null },
-          },
-          data: {
-            status: status,
-          },
-        });
-
-        const botData = {
-          remoteJid: remoteJid,
-          status: status,
-          session,
-        };
-
-        return { bot: { ...instance, bot: botData } };
-      }
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error changing status');
-    }
-  }
-
-  public async fetchSessions(instance: InstanceDto, botId: string, remoteJid?: string) {
-    if (!this.integrationEnabled) throw new BadRequestException('Dify is disabled');
-
-    try {
-      const instanceId = await this.prismaRepository.instance
-        .findFirst({
-          where: {
-            name: instance.instanceName,
-          },
-        })
-        .then((instance) => instance.id);
-
-      const bot = await this.botRepository.findFirst({
-        where: {
-          id: botId,
-        },
-      });
-
-      if (bot && bot.instanceId !== instanceId) {
-        throw new Error('Dify not found');
-      }
-
-      return await this.sessionRepository.findMany({
-        where: {
-          instanceId: instanceId,
-          remoteJid,
-          botId: bot ? botId : { not: null },
-          type: 'dify',
-        },
-      });
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error fetching sessions');
-    }
-  }
-
-  public async ignoreJid(instance: InstanceDto, data: IgnoreJidDto) {
-    if (!this.integrationEnabled) throw new BadRequestException('Dify is disabled');
-
-    try {
-      const instanceId = await this.prismaRepository.instance
-        .findFirst({
-          where: {
-            name: instance.instanceName,
-          },
-        })
-        .then((instance) => instance.id);
-
-      const settings = await this.settingsRepository.findFirst({
-        where: {
-          instanceId: instanceId,
-        },
-      });
-
-      if (!settings) {
-        throw new Error('Settings not found');
-      }
-
-      let ignoreJids: any = settings?.ignoreJids || [];
-
-      if (data.action === 'add') {
-        if (ignoreJids.includes(data.remoteJid)) return { ignoreJids: ignoreJids };
-
-        ignoreJids.push(data.remoteJid);
-      } else {
-        ignoreJids = ignoreJids.filter((jid) => jid !== data.remoteJid);
-      }
-
-      const updateSettings = await this.settingsRepository.update({
-        where: {
-          id: settings.id,
-        },
-        data: {
-          ignoreJids: ignoreJids,
-        },
-      });
-
-      return {
-        ignoreJids: updateSettings.ignoreJids,
-      };
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error setting default settings');
-    }
-  }
-
-  // Emit
-  public async emit({ instance, remoteJid, msg }: EmitData) {
-    if (!this.integrationEnabled) return;
-
-    try {
-      const settings = await this.settingsRepository.findFirst({
-        where: {
-          instanceId: instance.instanceId,
-        },
-      });
-
-      if (this.checkIgnoreJids(settings?.ignoreJids, remoteJid)) return;
-
-      const session = await this.getSession(remoteJid, instance);
-
-      const content = getConversationMessage(msg);
-
-      let findBot = (await this.findBotTrigger(this.botRepository, content, instance, session)) as DifyModel;
-
-      if (!findBot) {
-        const fallback = await this.settingsRepository.findFirst({
-          where: {
-            instanceId: instance.instanceId,
-          },
-        });
-
-        if (fallback?.difyIdFallback) {
-          const findFallback = await this.botRepository.findFirst({
-            where: {
-              id: fallback.difyIdFallback,
-            },
-          });
-
-          findBot = findFallback;
-        } else {
-          return;
-        }
-      }
-
-      let expire = findBot?.expire;
-      let keywordFinish = findBot?.keywordFinish;
-      let delayMessage = findBot?.delayMessage;
-      let unknownMessage = findBot?.unknownMessage;
-      let listeningFromMe = findBot?.listeningFromMe;
-      let stopBotFromMe = findBot?.stopBotFromMe;
-      let keepOpen = findBot?.keepOpen;
-      let debounceTime = findBot?.debounceTime;
-      let ignoreJids = findBot?.ignoreJids;
-      let splitMessages = findBot?.splitMessages;
-      let timePerChar = findBot?.timePerChar;
-
-      if (expire === undefined || expire === null) expire = settings.expire;
-      if (keywordFinish === undefined || keywordFinish === null) keywordFinish = settings.keywordFinish;
-      if (delayMessage === undefined || delayMessage === null) delayMessage = settings.delayMessage;
-      if (unknownMessage === undefined || unknownMessage === null) unknownMessage = settings.unknownMessage;
-      if (listeningFromMe === undefined || listeningFromMe === null) listeningFromMe = settings.listeningFromMe;
-      if (stopBotFromMe === undefined || stopBotFromMe === null) stopBotFromMe = settings.stopBotFromMe;
-      if (keepOpen === undefined || keepOpen === null) keepOpen = settings.keepOpen;
-      if (debounceTime === undefined || debounceTime === null) debounceTime = settings.debounceTime;
-      if (ignoreJids === undefined || ignoreJids === null) ignoreJids = settings.ignoreJids;
-      if (splitMessages === undefined || splitMessages === null) splitMessages = settings?.splitMessages ?? false;
-      if (timePerChar === undefined || timePerChar === null) timePerChar = settings?.timePerChar ?? 0;
-
-      const key = msg.key as {
-        id: string;
-        remoteJid: string;
-        fromMe: boolean;
-        participant: string;
-      };
-
-      if (stopBotFromMe && key.fromMe && session) {
-        await this.prismaRepository.integrationSession.update({
-          where: {
-            id: session.id,
-          },
-          data: {
-            status: 'paused',
-          },
-        });
-        return;
-      }
-
-      if (!listeningFromMe && key.fromMe) {
-        return;
-      }
-
-      if (session && !session.awaitUser) {
-        return;
-      }
-
-      if (debounceTime && debounceTime > 0) {
-        this.processDebounce(this.userMessageDebounce, content, remoteJid, debounceTime, async (debouncedContent) => {
-          await this.difyService.processDify(
-            this.waMonitor.waInstances[instance.instanceName],
-            remoteJid,
-            findBot,
-            session,
-            {
-              ...settings,
-              expire,
-              keywordFinish,
-              delayMessage,
-              unknownMessage,
-              listeningFromMe,
-              stopBotFromMe,
-              keepOpen,
-              debounceTime,
-              ignoreJids,
-              splitMessages,
-              timePerChar,
-            },
-            debouncedContent,
-            msg?.pushName,
-          );
-        });
-      } else {
-        await this.difyService.processDify(
-          this.waMonitor.waInstances[instance.instanceName],
-          remoteJid,
-          findBot,
-          session,
-          {
-            ...settings,
-            expire,
-            keywordFinish,
-            delayMessage,
-            unknownMessage,
-            listeningFromMe,
-            stopBotFromMe,
-            keepOpen,
-            debounceTime,
-            ignoreJids,
-            splitMessages,
-            timePerChar,
-          },
-          content,
-          msg?.pushName,
-        );
-      }
-
-      return;
-    } catch (error) {
-      this.logger.error(error);
-      return;
-    }
+  // Process Dify-specific bot logic
+  protected async processBot(
+    instance: any,
+    remoteJid: string,
+    bot: DifyModel,
+    session: IntegrationSession,
+    settings: any,
+    content: string,
+    pushName?: string,
+    msg?: any,
+  ) {
+    this.difyService.process(instance, remoteJid, bot, session, settings, content, pushName, msg);
   }
 }

src/api/integrations/chatbot/dify/dto/dify.dto.ts

@@ -1,38 +1,13 @@
 import { $Enums, TriggerOperator, TriggerType } from '@prisma/client';
+import { BaseChatbotDto, BaseChatbotSettingDto } from '../../base-chatbot.dto';
 
-export class DifyDto {
-  enabled?: boolean;
-  description?: string;
+export class DifyDto extends BaseChatbotDto {
+  // Dify specific fields
   botType?: $Enums.DifyBotType;
   apiUrl?: string;
   apiKey?: string;
-  expire?: number;
-  keywordFinish?: string;
-  delayMessage?: number;
-  unknownMessage?: string;
-  listeningFromMe?: boolean;
-  stopBotFromMe?: boolean;
-  keepOpen?: boolean;
-  debounceTime?: number;
-  triggerType?: TriggerType;
-  triggerOperator?: TriggerOperator;
-  triggerValue?: string;
-  ignoreJids?: any;
-  splitMessages?: boolean;
-  timePerChar?: number;
 }
 
-export class DifySettingDto {
-  expire?: number;
-  keywordFinish?: string;
-  delayMessage?: number;
-  unknownMessage?: string;
-  listeningFromMe?: boolean;
-  stopBotFromMe?: boolean;
-  keepOpen?: boolean;
-  debounceTime?: number;
-  difyIdFallback?: string;
-  ignoreJids?: any;
-  splitMessages?: boolean;
-  timePerChar?: number;
+export class DifySettingDto extends BaseChatbotSettingDto {
+  // Dify specific fields
 }

src/api/integrations/chatbot/dify/services/dify.service.ts

@@ -1,60 +1,37 @@
-/* eslint-disable @typescript-eslint/no-unused-vars */
 import { InstanceDto } from '@api/dto/instance.dto';
 import { PrismaRepository } from '@api/repository/repository.service';
 import { WAMonitoringService } from '@api/services/monitor.service';
 import { Integration } from '@api/types/wa.types';
-import { Auth, ConfigService, HttpServer } from '@config/env.config';
-import { Logger } from '@config/logger.config';
 import { Dify, DifySetting, IntegrationSession } from '@prisma/client';
 import { sendTelemetry } from '@utils/sendTelemetry';
 import axios from 'axios';
-import { Readable } from 'stream';
+import { downloadMediaMessage } from 'baileys';
 
-export class DifyService {
+import { BaseChatbotService } from '../../base-chatbot.service';
+import { ConfigService, HttpServer } from '@config/env.config';
+import { Auth } from '@config/env.config';
+
+export class DifyService extends BaseChatbotService<Dify, DifySetting> {
   constructor(
-    private readonly waMonitor: WAMonitoringService,
-    private readonly configService: ConfigService,
-    private readonly prismaRepository: PrismaRepository,
-  ) {}
+    waMonitor: WAMonitoringService,
+    configService: ConfigService,
+    prismaRepository: PrismaRepository,
+  ) {
+    super(waMonitor, prismaRepository, 'DifyService', configService);
+  }
 
-  private readonly logger = new Logger('DifyService');
+  /**
+   * Return the bot type for Dify
+   */
+  protected getBotType(): string {
+    return 'dify';
+  }
 
   public async createNewSession(instance: InstanceDto, data: any) {
-    try {
-      const session = await this.prismaRepository.integrationSession.create({
-        data: {
-          remoteJid: data.remoteJid,
-          pushName: data.pushName,
-          sessionId: data.remoteJid,
-          status: 'opened',
-          awaitUser: false,
-          botId: data.botId,
-          instanceId: instance.instanceId,
-          type: 'dify',
-        },
-      });
-
-      return { session };
-    } catch (error) {
-      this.logger.error(error);
-      return;
-    }
+    return super.createNewSession(instance, data, 'dify');
   }
 
-  private isImageMessage(content: string) {
-    return content.includes('imageMessage');
-  }
-
-  private isJSON(str: string): boolean {
-    try {
-      JSON.parse(str);
-      return true;
-    } catch (e) {
-      return false;
-    }
-  }
-
-  private async sendMessageToBot(
+  protected async sendMessageToBot(
     instance: any,
     session: IntegrationSession,
     settings: DifySetting,
@@ -62,6 +39,7 @@ export class DifyService {
     remoteJid: string,
     pushName: string,
     content: string,
+    msg?: any,
   ) {
     try {
       let endpoint: string = dify.apiUrl;
@@ -82,6 +60,7 @@ export class DifyService {
           user: remoteJid,
         };
 
+        // Handle image messages
         if (this.isImageMessage(content)) {
           const contentSplit = content.split('|');
 
@@ -94,6 +73,23 @@ export class DifyService {
           ];
           payload.query = contentSplit[2] || content;
         }
+        
+        // Handle audio messages
+        if (this.isAudioMessage(content) && msg) {
+          try {
+            this.logger.debug(`[Dify] Downloading audio for Whisper transcription`);
+            const mediaBuffer = await downloadMediaMessage({ key: msg.key, message: msg.message }, 'buffer', {});
+            const transcribedText = await this.speechToText(mediaBuffer);
+            if (transcribedText) {
+              payload.query = transcribedText;
+            } else {
+              payload.query = '[Audio message could not be transcribed]';
+            }
+          } catch (err) {
+            this.logger.error(`[Dify] Failed to transcribe audio: ${err}`);
+            payload.query = '[Audio message could not be transcribed]';
+          }
+        }
 
         if (instance.integration === Integration.WHATSAPP_BAILEYS) {
           await instance.client.presenceSubscribe(remoteJid);
@@ -142,6 +138,7 @@ export class DifyService {
           user: remoteJid,
         };
 
+        // Handle image messages
         if (this.isImageMessage(content)) {
           const contentSplit = content.split('|');
 
@@ -154,6 +151,23 @@ export class DifyService {
           ];
           payload.inputs.query = contentSplit[2] || content;
         }
+        
+        // Handle audio messages
+        if (this.isAudioMessage(content) && msg) {
+          try {
+            this.logger.debug(`[Dify] Downloading audio for Whisper transcription`);
+            const mediaBuffer = await downloadMediaMessage({ key: msg.key, message: msg.message }, 'buffer', {});
+            const transcribedText = await this.speechToText(mediaBuffer);
+            if (transcribedText) {
+              payload.inputs.query = transcribedText;
+            } else {
+              payload.inputs.query = '[Audio message could not be transcribed]';
+            }
+          } catch (err) {
+            this.logger.error(`[Dify] Failed to transcribe audio: ${err}`);
+            payload.inputs.query = '[Audio message could not be transcribed]';
+          }
+        }
 
         if (instance.integration === Integration.WHATSAPP_BAILEYS) {
           await instance.client.presenceSubscribe(remoteJid);
@@ -202,6 +216,7 @@ export class DifyService {
           user: remoteJid,
         };
 
+        // Handle image messages
         if (this.isImageMessage(content)) {
           const contentSplit = content.split('|');
 
@@ -214,6 +229,23 @@ export class DifyService {
           ];
           payload.query = contentSplit[2] || content;
         }
+        
+        // Handle audio messages
+        if (this.isAudioMessage(content) && msg) {
+          try {
+            this.logger.debug(`[Dify] Downloading audio for Whisper transcription`);
+            const mediaBuffer = await downloadMediaMessage({ key: msg.key, message: msg.message }, 'buffer', {});
+            const transcribedText = await this.speechToText(mediaBuffer);
+            if (transcribedText) {
+              payload.query = transcribedText;
+            } else {
+              payload.query = '[Audio message could not be transcribed]';
+            }
+          } catch (err) {
+            this.logger.error(`[Dify] Failed to transcribe audio: ${err}`);
+            payload.query = '[Audio message could not be transcribed]';
+          }
+        }
 
         if (instance.integration === Integration.WHATSAPP_BAILEYS) {
           await instance.client.presenceSubscribe(remoteJid);
@@ -248,9 +280,7 @@ export class DifyService {
         if (instance.integration === Integration.WHATSAPP_BAILEYS)
           await instance.client.sendPresenceUpdate('paused', remoteJid);
 
-        const message = answer;
-
-        await this.sendMessageWhatsApp(instance, remoteJid, message, settings);
+        await this.sendMessageWhatsApp(instance, remoteJid, answer, settings);
 
         await this.prismaRepository.integrationSession.update({
           where: {
@@ -259,70 +289,9 @@ export class DifyService {
           data: {
             status: 'opened',
             awaitUser: true,
-            sessionId: conversationId,
+            sessionId: session.sessionId === remoteJid ? conversationId : session.sessionId,
           },
         });
-
-        return;
-      }
-
-      if (dify.botType === 'workflow') {
-        endpoint += '/workflows/run';
-        const payload: any = {
-          inputs: {
-            query: content,
-            remoteJid: remoteJid,
-            pushName: pushName,
-            instanceName: instance.instanceName,
-            serverUrl: this.configService.get<HttpServer>('SERVER').URL,
-            apiKey: this.configService.get<Auth>('AUTHENTICATION').API_KEY.KEY,
-          },
-          response_mode: 'blocking',
-          user: remoteJid,
-        };
-
-        if (this.isImageMessage(content)) {
-          const contentSplit = content.split('|');
-
-          payload.files = [
-            {
-              type: 'image',
-              transfer_method: 'remote_url',
-              url: contentSplit[1].split('?')[0],
-            },
-          ];
-          payload.inputs.query = contentSplit[2] || content;
-        }
-
-        if (instance.integration === Integration.WHATSAPP_BAILEYS) {
-          await instance.client.presenceSubscribe(remoteJid);
-          await instance.client.sendPresenceUpdate('composing', remoteJid);
-        }
-
-        const response = await axios.post(endpoint, payload, {
-          headers: {
-            Authorization: `Bearer ${dify.apiKey}`,
-          },
-        });
-
-        if (instance.integration === Integration.WHATSAPP_BAILEYS)
-          await instance.client.sendPresenceUpdate('paused', remoteJid);
-
-        const message = response?.data?.data.outputs.text;
-
-        await this.sendMessageWhatsApp(instance, remoteJid, message, settings);
-
-        await this.prismaRepository.integrationSession.update({
-          where: {
-            id: session.id,
-          },
-          data: {
-            status: 'opened',
-            awaitUser: true,
-          },
-        });
-
-        return;
       }
     } catch (error) {
       this.logger.error(error.response?.data || error);
@@ -330,33 +299,17 @@ export class DifyService {
     }
   }
 
-  private async sendMessageWhatsApp(instance: any, remoteJid: string, message: string, settings: DifySetting) {
+  protected async sendMessageWhatsApp(instance: any, remoteJid: string, message: string, settings: DifySetting) {
     const linkRegex = /(!?)\[(.*?)\]\((.*?)\)/g;
-
     let textBuffer = '';
     let lastIndex = 0;
-
     let match: RegExpExecArray | null;
 
-    const getMediaType = (url: string): string | null => {
-      const extension = url.split('.').pop()?.toLowerCase();
-      const imageExtensions = ['jpg', 'jpeg', 'png', 'gif', 'bmp', 'webp'];
-      const audioExtensions = ['mp3', 'wav', 'aac', 'ogg'];
-      const videoExtensions = ['mp4', 'avi', 'mkv', 'mov'];
-      const documentExtensions = ['pdf', 'doc', 'docx', 'xls', 'xlsx', 'ppt', 'pptx', 'txt'];
-
-      if (imageExtensions.includes(extension || '')) return 'image';
-      if (audioExtensions.includes(extension || '')) return 'audio';
-      if (videoExtensions.includes(extension || '')) return 'video';
-      if (documentExtensions.includes(extension || '')) return 'document';
-      return null;
-    };
-
     while ((match = linkRegex.exec(message)) !== null) {
-      const [fullMatch, exclMark, altText, url] = match;
-      const mediaType = getMediaType(url);
-
+      const [fullMatch, exclamation, altText, url] = match;
+      const mediaType = this.getMediaType(url);
       const beforeText = message.slice(lastIndex, match.index);
+
       if (beforeText) {
         textBuffer += beforeText;
       }
@@ -370,10 +323,8 @@ export class DifyService {
         if (textBuffer.trim()) {
           if (splitMessages) {
             const multipleMessages = textBuffer.trim().split('\n\n');
-
             for (let index = 0; index < multipleMessages.length; index++) {
               const message = multipleMessages[index];
-
               const delay = Math.min(Math.max(message.length * timePerChar, minDelay), maxDelay);
 
               if (instance.integration === Integration.WHATSAPP_BAILEYS) {
@@ -400,64 +351,90 @@ export class DifyService {
               }
             }
           } else {
-            await instance.textMessage(
-              {
-                number: remoteJid.split('@')[0],
-                delay: settings?.delayMessage || 1000,
-                text: textBuffer.trim(),
-              },
-              false,
-            );
+            const delay = Math.min(Math.max(textBuffer.length * timePerChar, minDelay), maxDelay);
+
+            if (instance.integration === Integration.WHATSAPP_BAILEYS) {
+              await instance.client.presenceSubscribe(remoteJid);
+              await instance.client.sendPresenceUpdate('composing', remoteJid);
+            }
+
+            await new Promise<void>((resolve) => {
+              setTimeout(async () => {
+                await instance.textMessage(
+                  {
+                    number: remoteJid.split('@')[0],
+                    delay: settings?.delayMessage || 1000,
+                    text: textBuffer,
+                  },
+                  false,
+                );
+                resolve();
+              }, delay);
+            });
+
+            if (instance.integration === Integration.WHATSAPP_BAILEYS) {
+              await instance.client.sendPresenceUpdate('paused', remoteJid);
+            }
           }
-          textBuffer = '';
         }
 
-        if (mediaType === 'audio') {
-          await instance.audioWhatsapp({
+        textBuffer = '';
+
+        if (mediaType === 'image') {
+          await instance.mediaMessage({
             number: remoteJid.split('@')[0],
             delay: settings?.delayMessage || 1000,
-            audio: url,
-            caption: altText,
+            caption: exclamation === '!' ? undefined : altText,
+            mediatype: 'image',
+            media: url,
+          });
+        } else if (mediaType === 'video') {
+          await instance.mediaMessage({
+            number: remoteJid.split('@')[0],
+            delay: settings?.delayMessage || 1000,
+            caption: exclamation === '!' ? undefined : altText,
+            mediatype: 'video',
+            media: url,
+          });
+        } else if (mediaType === 'audio') {
+          await instance.mediaMessage({
+            number: remoteJid.split('@')[0],
+            delay: settings?.delayMessage || 1000,
+            mediatype: 'audio',
+            media: url,
+          });
+        } else if (mediaType === 'document') {
+          await instance.mediaMessage({
+            number: remoteJid.split('@')[0],
+            delay: settings?.delayMessage || 1000,
+            caption: exclamation === '!' ? undefined : altText,
+            mediatype: 'document',
+            media: url,
+            fileName: altText || 'file',
           });
-        } else {
-          await instance.mediaMessage(
-            {
-              number: remoteJid.split('@')[0],
-              delay: settings?.delayMessage || 1000,
-              mediatype: mediaType,
-              media: url,
-              caption: altText,
-            },
-            null,
-            false,
-          );
         }
       } else {
         textBuffer += `[${altText}](${url})`;
       }
 
-      lastIndex = linkRegex.lastIndex;
+      lastIndex = match.index + fullMatch.length;
     }
 
-    if (lastIndex < message.length) {
-      const remainingText = message.slice(lastIndex);
-      if (remainingText.trim()) {
-        textBuffer += remainingText;
-      }
+    const remainingText = message.slice(lastIndex);
+    if (remainingText) {
+      textBuffer += remainingText;
     }
 
-    const splitMessages = settings.splitMessages ?? false;
-    const timePerChar = settings.timePerChar ?? 0;
-    const minDelay = 1000;
-    const maxDelay = 20000;
-
     if (textBuffer.trim()) {
+      const splitMessages = settings.splitMessages ?? false;
+      const timePerChar = settings.timePerChar ?? 0;
+      const minDelay = 1000;
+      const maxDelay = 20000;
+
       if (splitMessages) {
         const multipleMessages = textBuffer.trim().split('\n\n');
-
         for (let index = 0; index < multipleMessages.length; index++) {
           const message = multipleMessages[index];
-
           const delay = Math.min(Math.max(message.length * timePerChar, minDelay), maxDelay);
 
           if (instance.integration === Integration.WHATSAPP_BAILEYS) {
@@ -484,21 +461,35 @@ export class DifyService {
           }
         }
       } else {
-        await instance.textMessage(
-          {
-            number: remoteJid.split('@')[0],
-            delay: settings?.delayMessage || 1000,
-            text: textBuffer.trim(),
-          },
-          false,
-        );
+        const delay = Math.min(Math.max(textBuffer.length * timePerChar, minDelay), maxDelay);
+
+        if (instance.integration === Integration.WHATSAPP_BAILEYS) {
+          await instance.client.presenceSubscribe(remoteJid);
+          await instance.client.sendPresenceUpdate('composing', remoteJid);
+        }
+
+        await new Promise<void>((resolve) => {
+          setTimeout(async () => {
+            await instance.textMessage(
+              {
+                number: remoteJid.split('@')[0],
+                delay: settings?.delayMessage || 1000,
+                text: textBuffer,
+              },
+              false,
+            );
+            resolve();
+          }, delay);
+        });
+
+        if (instance.integration === Integration.WHATSAPP_BAILEYS) {
+          await instance.client.sendPresenceUpdate('paused', remoteJid);
+        }
       }
     }
-
-    sendTelemetry('/message/sendText');
   }
 
-  private async initNewSession(
+  protected async initNewSession(
     instance: any,
     remoteJid: string,
     dify: Dify,
@@ -506,46 +497,30 @@ export class DifyService {
     session: IntegrationSession,
     content: string,
     pushName?: string,
+    msg?: any,
   ) {
-    const data = await this.createNewSession(instance, {
-      remoteJid,
-      pushName,
-      botId: dify.id,
-    });
-
-    if (data.session) {
-      session = data.session;
-    }
-
-    await this.sendMessageToBot(instance, session, settings, dify, remoteJid, pushName, content);
-
-    return;
-  }
-
-  public async processDify(
-    instance: any,
-    remoteJid: string,
-    dify: Dify,
-    session: IntegrationSession,
-    settings: DifySetting,
-    content: string,
-    pushName?: string,
-  ) {
-    if (session && session.status !== 'opened') {
+    try {
+      await this.sendMessageToBot(instance, session, settings, dify, remoteJid, pushName || '', content, msg);
+    } catch (error) {
+      this.logger.error(error);
       return;
     }
+  }
 
-    if (session && settings.expire && settings.expire > 0) {
-      const now = Date.now();
-
-      const sessionUpdatedAt = new Date(session.updatedAt).getTime();
-
-      const diff = now - sessionUpdatedAt;
-
-      const diffInMinutes = Math.floor(diff / 1000 / 60);
-
-      if (diffInMinutes > settings.expire) {
-        if (settings.keepOpen) {
+  public async process(
+    instance: any,
+    remoteJid: string,
+    dify: Dify,
+    session: IntegrationSession,
+    settings: DifySetting,
+    content: string,
+    pushName?: string,
+    msg?: any,
+  ) {
+    try {
+      // Handle keyword finish
+      if (settings?.keywordFinish?.includes(content.toLowerCase())) {
+        if (settings?.keepOpen) {
           await this.prismaRepository.integrationSession.update({
             where: {
               id: session.id,
@@ -555,73 +530,65 @@ export class DifyService {
             },
           });
         } else {
-          await this.prismaRepository.integrationSession.deleteMany({
+          await this.prismaRepository.integrationSession.delete({
             where: {
-              botId: dify.id,
-              remoteJid: remoteJid,
+              id: session.id,
             },
           });
         }
 
-        await this.initNewSession(instance, remoteJid, dify, settings, session, content, pushName);
+        await sendTelemetry('/dify/session/finish');
         return;
       }
-    }
 
-    if (!session) {
-      await this.initNewSession(instance, remoteJid, dify, settings, session, content, pushName);
-      return;
-    }
+      // If session is new or doesn't exist
+      if (!session) {
+        const data = {
+          remoteJid,
+          pushName,
+          botId: dify.id,
+        };
 
-    await this.prismaRepository.integrationSession.update({
-      where: {
-        id: session.id,
-      },
-      data: {
-        status: 'opened',
-        awaitUser: false,
-      },
-    });
-
-    if (!content) {
-      if (settings.unknownMessage) {
-        this.waMonitor.waInstances[instance.instanceName].textMessage(
-          {
-            number: remoteJid.split('@')[0],
-            delay: settings.delayMessage || 1000,
-            text: settings.unknownMessage,
-          },
-          false,
+        const createSession = await this.createNewSession(
+          { instanceName: instance.instanceName, instanceId: instance.instanceId },
+          data,
         );
 
-        sendTelemetry('/message/sendText');
-      }
-      return;
-    }
+        await this.initNewSession(
+          instance,
+          remoteJid,
+          dify,
+          settings,
+          createSession.session,
+          content,
+          pushName,
+          msg,
+        );
 
-    if (settings.keywordFinish && content.toLowerCase() === settings.keywordFinish.toLowerCase()) {
-      if (settings.keepOpen) {
+        await sendTelemetry('/dify/session/start');
+        return;
+      }
+
+      // If session exists but is paused
+      if (session.status === 'paused') {
         await this.prismaRepository.integrationSession.update({
           where: {
             id: session.id,
           },
           data: {
-            status: 'closed',
-          },
-        });
-      } else {
-        await this.prismaRepository.integrationSession.deleteMany({
-          where: {
-            botId: dify.id,
-            remoteJid: remoteJid,
+            status: 'opened',
+            awaitUser: true,
           },
         });
+
+        return;
       }
+
+      // Regular message for ongoing session
+      await this.sendMessageToBot(instance, session, settings, dify, remoteJid, pushName || '', content, msg);
+    } catch (error) {
+      this.logger.error(error);
       return;
     }
-
-    await this.sendMessageToBot(instance, session, settings, dify, remoteJid, pushName, content);
-
-    return;
   }
 }

src/api/integrations/chatbot/evoai/controllers/evoai.controller.ts

@@ -7,12 +7,11 @@ import { WAMonitoringService } from '@api/services/monitor.service';
 import { configService, Evoai } from '@config/env.config';
 import { Logger } from '@config/logger.config';
 import { BadRequestException } from '@exceptions';
-import { Evoai as EvoaiModel } from '@prisma/client';
-import { getConversationMessage } from '@utils/getConversationMessage';
+import { Evoai as EvoaiModel, IntegrationSession } from '@prisma/client';
 
-import { ChatbotController, ChatbotControllerInterface, EmitData } from '../../chatbot.controller';
+import { BaseChatbotController, ChatbotSettings } from '../../base-chatbot.controller';
 
-export class EvoaiController extends ChatbotController implements ChatbotControllerInterface {
+export class EvoaiController extends BaseChatbotController<EvoaiModel, EvoaiDto> {
   constructor(
     private readonly evoaiService: EvoaiService,
     prismaRepository: PrismaRepository,
@@ -26,6 +25,7 @@ export class EvoaiController extends ChatbotController implements ChatbotControl
   }
 
   public readonly logger = new Logger('EvoaiController');
+  protected readonly integrationName = 'Evoai';
 
   integrationEnabled = configService.get<Evoai>('EVOAI').ENABLED;
   botRepository: any;
@@ -33,6 +33,51 @@ export class EvoaiController extends ChatbotController implements ChatbotControl
   sessionRepository: any;
   userMessageDebounce: { [key: string]: { message: string; timeoutId: NodeJS.Timeout } } = {};
 
+  protected getFallbackBotId(settings: any): string | undefined {
+    return settings?.fallbackId;
+  }
+
+  protected getFallbackFieldName(): string {
+    return 'evoaiIdFallback';
+  }
+
+  protected getIntegrationType(): string {
+    return 'evoai';
+  }
+
+  protected getAdditionalBotData(data: EvoaiDto): Record<string, any> {
+    return {
+      agentUrl: data.agentUrl,
+      apiKey: data.apiKey,
+    };
+  }
+
+  // Implementation for bot-specific updates
+  protected getAdditionalUpdateFields(data: EvoaiDto): Record<string, any> {
+    return {
+      agentUrl: data.agentUrl,
+      apiKey: data.apiKey,
+    };
+  }
+
+  // Implementation for bot-specific duplicate validation on update
+  protected async validateNoDuplicatesOnUpdate(botId: string, instanceId: string, data: EvoaiDto): Promise<void> {
+    const checkDuplicate = await this.botRepository.findFirst({
+      where: {
+        id: {
+          not: botId,
+        },
+        instanceId: instanceId,
+        agentUrl: data.agentUrl,
+        apiKey: data.apiKey,
+      },
+    });
+
+    if (checkDuplicate) {
+      throw new Error('Evoai already exists');
+    }
+  }
+
   // Bots
   public async createBot(instance: InstanceDto, data: EvoaiDto) {
     if (!this.integrationEnabled) throw new BadRequestException('Evoai is disabled');
@@ -45,74 +90,6 @@ export class EvoaiController extends ChatbotController implements ChatbotControl
       })
       .then((instance) => instance.id);
 
-    if (
-      !data.expire ||
-      !data.keywordFinish ||
-      !data.delayMessage ||
-      !data.unknownMessage ||
-      !data.listeningFromMe ||
-      !data.stopBotFromMe ||
-      !data.keepOpen ||
-      !data.debounceTime ||
-      !data.ignoreJids ||
-      !data.splitMessages ||
-      !data.timePerChar
-    ) {
-      const defaultSettingCheck = await this.settingsRepository.findFirst({
-        where: {
-          instanceId: instanceId,
-        },
-      });
-
-      if (data.expire === undefined || data.expire === null) data.expire = defaultSettingCheck.expire;
-      if (data.keywordFinish === undefined || data.keywordFinish === null)
-        data.keywordFinish = defaultSettingCheck.keywordFinish;
-      if (data.delayMessage === undefined || data.delayMessage === null)
-        data.delayMessage = defaultSettingCheck.delayMessage;
-      if (data.unknownMessage === undefined || data.unknownMessage === null)
-        data.unknownMessage = defaultSettingCheck.unknownMessage;
-      if (data.listeningFromMe === undefined || data.listeningFromMe === null)
-        data.listeningFromMe = defaultSettingCheck.listeningFromMe;
-      if (data.stopBotFromMe === undefined || data.stopBotFromMe === null)
-        data.stopBotFromMe = defaultSettingCheck.stopBotFromMe;
-      if (data.keepOpen === undefined || data.keepOpen === null) data.keepOpen = defaultSettingCheck.keepOpen;
-      if (data.debounceTime === undefined || data.debounceTime === null)
-        data.debounceTime = defaultSettingCheck.debounceTime;
-      if (data.ignoreJids === undefined || data.ignoreJids === null) data.ignoreJids = defaultSettingCheck.ignoreJids;
-      if (data.splitMessages === undefined || data.splitMessages === null)
-        data.splitMessages = defaultSettingCheck?.splitMessages ?? false;
-      if (data.timePerChar === undefined || data.timePerChar === null)
-        data.timePerChar = defaultSettingCheck?.timePerChar ?? 0;
-
-      if (!defaultSettingCheck) {
-        await this.settings(instance, {
-          expire: data.expire,
-          keywordFinish: data.keywordFinish,
-          delayMessage: data.delayMessage,
-          unknownMessage: data.unknownMessage,
-          listeningFromMe: data.listeningFromMe,
-          stopBotFromMe: data.stopBotFromMe,
-          keepOpen: data.keepOpen,
-          debounceTime: data.debounceTime,
-          ignoreJids: data.ignoreJids,
-          splitMessages: data.splitMessages,
-          timePerChar: data.timePerChar,
-        });
-      }
-    }
-
-    const checkTriggerAll = await this.botRepository.findFirst({
-      where: {
-        enabled: true,
-        triggerType: 'all',
-        instanceId: instanceId,
-      },
-    });
-
-    if (checkTriggerAll && data.triggerType === 'all') {
-      throw new Error('You already have a evoai with an "All" trigger, you cannot have more bots while it is active');
-    }
-
     const checkDuplicate = await this.botRepository.findFirst({
       where: {
         instanceId: instanceId,
@@ -125,71 +102,7 @@ export class EvoaiController extends ChatbotController implements ChatbotControl
       throw new Error('Evoai already exists');
     }
 
-    if (data.triggerType === 'keyword') {
-      if (!data.triggerOperator || !data.triggerValue) {
-        throw new Error('Trigger operator and value are required');
-      }
-
-      const checkDuplicate = await this.botRepository.findFirst({
-        where: {
-          triggerOperator: data.triggerOperator,
-          triggerValue: data.triggerValue,
-          instanceId: instanceId,
-        },
-      });
-
-      if (checkDuplicate) {
-        throw new Error('Trigger already exists');
-      }
-    }
-
-    if (data.triggerType === 'advanced') {
-      if (!data.triggerValue) {
-        throw new Error('Trigger value is required');
-      }
-
-      const checkDuplicate = await this.botRepository.findFirst({
-        where: {
-          triggerValue: data.triggerValue,
-          instanceId: instanceId,
-        },
-      });
-
-      if (checkDuplicate) {
-        throw new Error('Trigger already exists');
-      }
-    }
-
-    try {
-      const bot = await this.botRepository.create({
-        data: {
-          enabled: data?.enabled,
-          description: data.description,
-          agentUrl: data.agentUrl,
-          apiKey: data.apiKey,
-          expire: data.expire,
-          keywordFinish: data.keywordFinish,
-          delayMessage: data.delayMessage,
-          unknownMessage: data.unknownMessage,
-          listeningFromMe: data.listeningFromMe,
-          stopBotFromMe: data.stopBotFromMe,
-          keepOpen: data.keepOpen,
-          debounceTime: data.debounceTime,
-          instanceId: instanceId,
-          triggerType: data.triggerType,
-          triggerOperator: data.triggerOperator,
-          triggerValue: data.triggerValue,
-          ignoreJids: data.ignoreJids,
-          splitMessages: data.splitMessages,
-          timePerChar: data.timePerChar,
-        },
-      });
-
-      return bot;
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error creating evoai');
-    }
+    return super.createBot(instance, data);
   }
 
   public async findBot(instance: InstanceDto) {
@@ -244,643 +157,17 @@ export class EvoaiController extends ChatbotController implements ChatbotControl
     return bot;
   }
 
-  public async updateBot(instance: InstanceDto, botId: string, data: EvoaiDto) {
-    if (!this.integrationEnabled) throw new BadRequestException('Evoai is disabled');
-
-    const instanceId = await this.prismaRepository.instance
-      .findFirst({
-        where: {
-          name: instance.instanceName,
-        },
-      })
-      .then((instance) => instance.id);
-
-    const bot = await this.botRepository.findFirst({
-      where: {
-        id: botId,
-      },
-    });
-
-    if (!bot) {
-      throw new Error('Evoai not found');
-    }
-
-    if (bot.instanceId !== instanceId) {
-      throw new Error('Evoai not found');
-    }
-
-    if (data.triggerType === 'all') {
-      const checkTriggerAll = await this.botRepository.findFirst({
-        where: {
-          enabled: true,
-          triggerType: 'all',
-          id: {
-            not: botId,
-          },
-          instanceId: instanceId,
-        },
-      });
-
-      if (checkTriggerAll) {
-        throw new Error('You already have a evoai with an "All" trigger, you cannot have more bots while it is active');
-      }
-    }
-
-    const checkDuplicate = await this.botRepository.findFirst({
-      where: {
-        id: {
-          not: botId,
-        },
-        instanceId: instanceId,
-        agentUrl: data.agentUrl,
-        apiKey: data.apiKey,
-      },
-    });
-
-    if (checkDuplicate) {
-      throw new Error('Evoai already exists');
-    }
-
-    if (data.triggerType === 'keyword') {
-      if (!data.triggerOperator || !data.triggerValue) {
-        throw new Error('Trigger operator and value are required');
-      }
-
-      const checkDuplicate = await this.botRepository.findFirst({
-        where: {
-          triggerOperator: data.triggerOperator,
-          triggerValue: data.triggerValue,
-          id: { not: botId },
-          instanceId: instanceId,
-        },
-      });
-
-      if (checkDuplicate) {
-        throw new Error('Trigger already exists');
-      }
-    }
-
-    if (data.triggerType === 'advanced') {
-      if (!data.triggerValue) {
-        throw new Error('Trigger value is required');
-      }
-
-      const checkDuplicate = await this.botRepository.findFirst({
-        where: {
-          triggerValue: data.triggerValue,
-          id: { not: botId },
-          instanceId: instanceId,
-        },
-      });
-
-      if (checkDuplicate) {
-        throw new Error('Trigger already exists');
-      }
-    }
-
-    try {
-      const bot = await this.botRepository.update({
-        where: {
-          id: botId,
-        },
-        data: {
-          enabled: data?.enabled,
-          description: data.description,
-          agentUrl: data.agentUrl,
-          apiKey: data.apiKey,
-          expire: data.expire,
-          keywordFinish: data.keywordFinish,
-          delayMessage: data.delayMessage,
-          unknownMessage: data.unknownMessage,
-          listeningFromMe: data.listeningFromMe,
-          stopBotFromMe: data.stopBotFromMe,
-          keepOpen: data.keepOpen,
-          debounceTime: data.debounceTime,
-          instanceId: instanceId,
-          triggerType: data.triggerType,
-          triggerOperator: data.triggerOperator,
-          triggerValue: data.triggerValue,
-          ignoreJids: data.ignoreJids,
-          splitMessages: data.splitMessages,
-          timePerChar: data.timePerChar,
-        },
-      });
-
-      return bot;
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error updating evoai');
-    }
-  }
-
-  public async deleteBot(instance: InstanceDto, botId: string) {
-    if (!this.integrationEnabled) throw new BadRequestException('Evoai is disabled');
-
-    const instanceId = await this.prismaRepository.instance
-      .findFirst({
-        where: {
-          name: instance.instanceName,
-        },
-      })
-      .then((instance) => instance.id);
-
-    const bot = await this.botRepository.findFirst({
-      where: {
-        id: botId,
-      },
-    });
-
-    if (!bot) {
-      throw new Error('Evoai not found');
-    }
-
-    if (bot.instanceId !== instanceId) {
-      throw new Error('Evoai not found');
-    }
-    try {
-      await this.prismaRepository.integrationSession.deleteMany({
-        where: {
-          botId: botId,
-        },
-      });
-
-      await this.botRepository.delete({
-        where: {
-          id: botId,
-        },
-      });
-
-      return { bot: { id: botId } };
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error deleting evoai bot');
-    }
-  }
-
-  // Settings
-  public async settings(instance: InstanceDto, data: any) {
-    if (!this.integrationEnabled) throw new BadRequestException('Evoai is disabled');
-
-    try {
-      const instanceId = await this.prismaRepository.instance
-        .findFirst({
-          where: {
-            name: instance.instanceName,
-          },
-        })
-        .then((instance) => instance.id);
-
-      const settings = await this.settingsRepository.findFirst({
-        where: {
-          instanceId: instanceId,
-        },
-      });
-
-      if (settings) {
-        const updateSettings = await this.settingsRepository.update({
-          where: {
-            id: settings.id,
-          },
-          data: {
-            expire: data.expire,
-            keywordFinish: data.keywordFinish,
-            delayMessage: data.delayMessage,
-            unknownMessage: data.unknownMessage,
-            listeningFromMe: data.listeningFromMe,
-            stopBotFromMe: data.stopBotFromMe,
-            keepOpen: data.keepOpen,
-            debounceTime: data.debounceTime,
-            evoaiIdFallback: data.evoaiIdFallback,
-            ignoreJids: data.ignoreJids,
-            splitMessages: data.splitMessages,
-            timePerChar: data.timePerChar,
-          },
-        });
-
-        return {
-          expire: updateSettings.expire,
-          keywordFinish: updateSettings.keywordFinish,
-          delayMessage: updateSettings.delayMessage,
-          unknownMessage: updateSettings.unknownMessage,
-          listeningFromMe: updateSettings.listeningFromMe,
-          stopBotFromMe: updateSettings.stopBotFromMe,
-          keepOpen: updateSettings.keepOpen,
-          debounceTime: updateSettings.debounceTime,
-          evoaiIdFallback: updateSettings.evoaiIdFallback,
-          ignoreJids: updateSettings.ignoreJids,
-          splitMessages: updateSettings.splitMessages,
-          timePerChar: updateSettings.timePerChar,
-        };
-      }
-
-      const newSetttings = await this.settingsRepository.create({
-        data: {
-          expire: data.expire,
-          keywordFinish: data.keywordFinish,
-          delayMessage: data.delayMessage,
-          unknownMessage: data.unknownMessage,
-          listeningFromMe: data.listeningFromMe,
-          stopBotFromMe: data.stopBotFromMe,
-          keepOpen: data.keepOpen,
-          debounceTime: data.debounceTime,
-          evoaiIdFallback: data.evoaiIdFallback,
-          ignoreJids: data.ignoreJids,
-          instanceId: instanceId,
-          splitMessages: data.splitMessages,
-          timePerChar: data.timePerChar,
-        },
-      });
-
-      return {
-        expire: newSetttings.expire,
-        keywordFinish: newSetttings.keywordFinish,
-        delayMessage: newSetttings.delayMessage,
-        unknownMessage: newSetttings.unknownMessage,
-        listeningFromMe: newSetttings.listeningFromMe,
-        stopBotFromMe: newSetttings.stopBotFromMe,
-        keepOpen: newSetttings.keepOpen,
-        debounceTime: newSetttings.debounceTime,
-        evoaiIdFallback: newSetttings.evoaiIdFallback,
-        ignoreJids: newSetttings.ignoreJids,
-        splitMessages: newSetttings.splitMessages,
-        timePerChar: newSetttings.timePerChar,
-      };
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error setting default settings');
-    }
-  }
-
-  public async fetchSettings(instance: InstanceDto) {
-    if (!this.integrationEnabled) throw new BadRequestException('Evoai is disabled');
-
-    try {
-      const instanceId = await this.prismaRepository.instance
-        .findFirst({
-          where: {
-            name: instance.instanceName,
-          },
-        })
-        .then((instance) => instance.id);
-
-      const settings = await this.settingsRepository.findFirst({
-        where: {
-          instanceId: instanceId,
-        },
-        include: {
-          Fallback: true,
-        },
-      });
-
-      if (!settings) {
-        return {
-          expire: 0,
-          keywordFinish: '',
-          delayMessage: 0,
-          unknownMessage: '',
-          listeningFromMe: false,
-          stopBotFromMe: false,
-          keepOpen: false,
-          ignoreJids: [],
-          splitMessages: false,
-          timePerChar: 0,
-          evoaiIdFallback: '',
-          fallback: null,
-        };
-      }
-
-      return {
-        expire: settings.expire,
-        keywordFinish: settings.keywordFinish,
-        delayMessage: settings.delayMessage,
-        unknownMessage: settings.unknownMessage,
-        listeningFromMe: settings.listeningFromMe,
-        stopBotFromMe: settings.stopBotFromMe,
-        keepOpen: settings.keepOpen,
-        ignoreJids: settings.ignoreJids,
-        splitMessages: settings.splitMessages,
-        timePerChar: settings.timePerChar,
-        evoaiIdFallback: settings.evoaiIdFallback,
-        fallback: settings.Fallback,
-      };
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error fetching default settings');
-    }
-  }
-
-  // Sessions
-  public async changeStatus(instance: InstanceDto, data: any) {
-    if (!this.integrationEnabled) throw new BadRequestException('Evoai is disabled');
-
-    try {
-      const instanceId = await this.prismaRepository.instance
-        .findFirst({
-          where: {
-            name: instance.instanceName,
-          },
-        })
-        .then((instance) => instance.id);
-
-      const defaultSettingCheck = await this.settingsRepository.findFirst({
-        where: {
-          instanceId,
-        },
-      });
-
-      const remoteJid = data.remoteJid;
-      const status = data.status;
-
-      if (status === 'delete') {
-        await this.sessionRepository.deleteMany({
-          where: {
-            remoteJid: remoteJid,
-            botId: { not: null },
-          },
-        });
-
-        return { bot: { remoteJid: remoteJid, status: status } };
-      }
-
-      if (status === 'closed') {
-        if (defaultSettingCheck?.keepOpen) {
-          await this.sessionRepository.updateMany({
-            where: {
-              remoteJid: remoteJid,
-              botId: { not: null },
-            },
-            data: {
-              status: 'closed',
-            },
-          });
-        } else {
-          await this.sessionRepository.deleteMany({
-            where: {
-              remoteJid: remoteJid,
-              botId: { not: null },
-            },
-          });
-        }
-
-        return { bot: { ...instance, bot: { remoteJid: remoteJid, status: status } } };
-      } else {
-        const session = await this.sessionRepository.updateMany({
-          where: {
-            instanceId: instanceId,
-            remoteJid: remoteJid,
-            botId: { not: null },
-          },
-          data: {
-            status: status,
-          },
-        });
-
-        const botData = {
-          remoteJid: remoteJid,
-          status: status,
-          session,
-        };
-
-        return { bot: { ...instance, bot: botData } };
-      }
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error changing status');
-    }
-  }
-
-  public async fetchSessions(instance: InstanceDto, botId: string, remoteJid?: string) {
-    if (!this.integrationEnabled) throw new BadRequestException('Evoai is disabled');
-
-    try {
-      const instanceId = await this.prismaRepository.instance
-        .findFirst({
-          where: {
-            name: instance.instanceName,
-          },
-        })
-        .then((instance) => instance.id);
-
-      const bot = await this.botRepository.findFirst({
-        where: {
-          id: botId,
-        },
-      });
-
-      if (bot && bot.instanceId !== instanceId) {
-        throw new Error('Evoai not found');
-      }
-
-      return await this.sessionRepository.findMany({
-        where: {
-          instanceId: instanceId,
-          remoteJid,
-          botId: bot ? botId : { not: null },
-          type: 'evoai',
-        },
-      });
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error fetching sessions');
-    }
-  }
-
-  public async ignoreJid(instance: InstanceDto, data: IgnoreJidDto) {
-    if (!this.integrationEnabled) throw new BadRequestException('Evoai is disabled');
-
-    try {
-      const instanceId = await this.prismaRepository.instance
-        .findFirst({
-          where: {
-            name: instance.instanceName,
-          },
-        })
-        .then((instance) => instance.id);
-
-      const settings = await this.settingsRepository.findFirst({
-        where: {
-          instanceId: instanceId,
-        },
-      });
-
-      if (!settings) {
-        throw new Error('Settings not found');
-      }
-
-      let ignoreJids: any = settings?.ignoreJids || [];
-
-      if (data.action === 'add') {
-        if (ignoreJids.includes(data.remoteJid)) return { ignoreJids: ignoreJids };
-
-        ignoreJids.push(data.remoteJid);
-      } else {
-        ignoreJids = ignoreJids.filter((jid) => jid !== data.remoteJid);
-      }
-
-      const updateSettings = await this.settingsRepository.update({
-        where: {
-          id: settings.id,
-        },
-        data: {
-          ignoreJids: ignoreJids,
-        },
-      });
-
-      return {
-        ignoreJids: updateSettings.ignoreJids,
-      };
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error setting default settings');
-    }
-  }
-
-  // Emit
-  public async emit({ instance, remoteJid, msg }: EmitData) {
-    if (!this.integrationEnabled) return;
-
-    try {
-      const settings = await this.settingsRepository.findFirst({
-        where: {
-          instanceId: instance.instanceId,
-        },
-      });
-
-      if (this.checkIgnoreJids(settings?.ignoreJids, remoteJid)) return;
-
-      const session = await this.getSession(remoteJid, instance);
-
-      const content = getConversationMessage(msg);
-
-      let findBot = (await this.findBotTrigger(this.botRepository, content, instance, session)) as EvoaiModel;
-
-      if (!findBot) {
-        const fallback = await this.settingsRepository.findFirst({
-          where: {
-            instanceId: instance.instanceId,
-          },
-        });
-
-        if (fallback?.evoaiIdFallback) {
-          const findFallback = await this.botRepository.findFirst({
-            where: {
-              id: fallback.evoaiIdFallback,
-            },
-          });
-
-          findBot = findFallback;
-        } else {
-          return;
-        }
-      }
-
-      let expire = findBot?.expire;
-      let keywordFinish = findBot?.keywordFinish;
-      let delayMessage = findBot?.delayMessage;
-      let unknownMessage = findBot?.unknownMessage;
-      let listeningFromMe = findBot?.listeningFromMe;
-      let stopBotFromMe = findBot?.stopBotFromMe;
-      let keepOpen = findBot?.keepOpen;
-      let debounceTime = findBot?.debounceTime;
-      let ignoreJids = findBot?.ignoreJids;
-      let splitMessages = findBot?.splitMessages;
-      let timePerChar = findBot?.timePerChar;
-
-      if (expire === undefined || expire === null) expire = settings.expire;
-      if (keywordFinish === undefined || keywordFinish === null) keywordFinish = settings.keywordFinish;
-      if (delayMessage === undefined || delayMessage === null) delayMessage = settings.delayMessage;
-      if (unknownMessage === undefined || unknownMessage === null) unknownMessage = settings.unknownMessage;
-      if (listeningFromMe === undefined || listeningFromMe === null) listeningFromMe = settings.listeningFromMe;
-      if (stopBotFromMe === undefined || stopBotFromMe === null) stopBotFromMe = settings.stopBotFromMe;
-      if (keepOpen === undefined || keepOpen === null) keepOpen = settings.keepOpen;
-      if (debounceTime === undefined || debounceTime === null) debounceTime = settings.debounceTime;
-      if (ignoreJids === undefined || ignoreJids === null) ignoreJids = settings.ignoreJids;
-      if (splitMessages === undefined || splitMessages === null) splitMessages = settings?.splitMessages ?? false;
-      if (timePerChar === undefined || timePerChar === null) timePerChar = settings?.timePerChar ?? 0;
-
-      const key = msg.key as {
-        id: string;
-        remoteJid: string;
-        fromMe: boolean;
-        participant: string;
-      };
-
-      if (stopBotFromMe && key.fromMe && session) {
-        await this.prismaRepository.integrationSession.update({
-          where: {
-            id: session.id,
-          },
-          data: {
-            status: 'paused',
-          },
-        });
-        return;
-      }
-
-      if (!listeningFromMe && key.fromMe) {
-        return;
-      }
-
-      if (session && !session.awaitUser) {
-        return;
-      }
-
-      if (debounceTime && debounceTime > 0) {
-        this.processDebounce(this.userMessageDebounce, content, remoteJid, debounceTime, async (debouncedContent) => {
-          await this.evoaiService.processEvoai(
-            this.waMonitor.waInstances[instance.instanceName],
-            remoteJid,
-            findBot,
-            session,
-            {
-              ...settings,
-              expire,
-              keywordFinish,
-              delayMessage,
-              unknownMessage,
-              listeningFromMe,
-              stopBotFromMe,
-              keepOpen,
-              debounceTime,
-              ignoreJids,
-              splitMessages,
-              timePerChar,
-            },
-            debouncedContent,
-            msg?.pushName,
-            msg,
-          );
-        });
-      } else {
-        await this.evoaiService.processEvoai(
-          this.waMonitor.waInstances[instance.instanceName],
-          remoteJid,
-          findBot,
-          session,
-          {
-            ...settings,
-            expire,
-            keywordFinish,
-            delayMessage,
-            unknownMessage,
-            listeningFromMe,
-            stopBotFromMe,
-            keepOpen,
-            debounceTime,
-            ignoreJids,
-            splitMessages,
-            timePerChar,
-          },
-          content,
-          msg?.pushName,
-          msg,
-        );
-      }
-
-      return;
-    } catch (error) {
-      this.logger.error(error);
-      return;
-    }
+  // Process Evoai-specific bot logic
+  protected async processBot(
+    instance: any,
+    remoteJid: string,
+    bot: EvoaiModel,
+    session: IntegrationSession,
+    settings: any,
+    content: string,
+    pushName?: string,
+    msg?: any,
+  ) {
+    this.evoaiService.process(instance, remoteJid, bot, session, settings, content, pushName, msg);
   }
 }

src/api/integrations/chatbot/evoai/dto/evoai.dto.ts

@@ -1,37 +1,12 @@
 import { TriggerOperator, TriggerType } from '@prisma/client';
+import { BaseChatbotDto, BaseChatbotSettingDto } from '../../base-chatbot.dto';
 
-export class EvoaiDto {
-  enabled?: boolean;
-  description?: string;
+export class EvoaiDto extends BaseChatbotDto {
+  // Evoai specific fields
   agentUrl?: string;
   apiKey?: string;
-  expire?: number;
-  keywordFinish?: string;
-  delayMessage?: number;
-  unknownMessage?: string;
-  listeningFromMe?: boolean;
-  stopBotFromMe?: boolean;
-  keepOpen?: boolean;
-  debounceTime?: number;
-  triggerType?: TriggerType;
-  triggerOperator?: TriggerOperator;
-  triggerValue?: string;
-  ignoreJids?: any;
-  splitMessages?: boolean;
-  timePerChar?: number;
 }
 
-export class EvoaiSettingDto {
-  expire?: number;
-  keywordFinish?: string;
-  delayMessage?: number;
-  unknownMessage?: string;
-  listeningFromMe?: boolean;
-  stopBotFromMe?: boolean;
-  keepOpen?: boolean;
-  debounceTime?: number;
-  evoaiIdFallback?: string;
-  ignoreJids?: any;
-  splitMessages?: boolean;
-  timePerChar?: number;
+export class EvoaiSettingDto extends BaseChatbotSettingDto {
+  // Evoai specific fields
 }

src/api/integrations/chatbot/evoai/services/evoai.service.ts

@@ -1,84 +1,85 @@
-/* eslint-disable @typescript-eslint/no-unused-vars */
 import { InstanceDto } from '@api/dto/instance.dto';
 import { PrismaRepository } from '@api/repository/repository.service';
 import { WAMonitoringService } from '@api/services/monitor.service';
 import { Integration } from '@api/types/wa.types';
-import { ConfigService, Language } from '@config/env.config';
-import { Logger } from '@config/logger.config';
+import { ConfigService } from '@config/env.config';
 import { Evoai, EvoaiSetting, IntegrationSession } from '@prisma/client';
-import { sendTelemetry } from '@utils/sendTelemetry';
 import axios from 'axios';
 import { downloadMediaMessage } from 'baileys';
-import FormData from 'form-data';
 import { v4 as uuidv4 } from 'uuid';
 
-export class EvoaiService {
-  constructor(
-    private readonly waMonitor: WAMonitoringService,
-    private readonly prismaRepository: PrismaRepository,
-    private readonly configService: ConfigService,
-  ) {}
+import { BaseChatbotService } from '../../base-chatbot.service';
 
-  private readonly logger = new Logger('EvoaiService');
+export class EvoaiService extends BaseChatbotService<Evoai, EvoaiSetting> {
+  constructor(
+    waMonitor: WAMonitoringService,
+    prismaRepository: PrismaRepository,
+    configService: ConfigService,
+  ) {
+    super(waMonitor, prismaRepository, 'EvoaiService', configService);
+  }
+
+  /**
+   * Return the bot type for EvoAI
+   */
+  protected getBotType(): string {
+    return 'evoai';
+  }
 
   public async createNewSession(instance: InstanceDto, data: any) {
-    try {
-      const session = await this.prismaRepository.integrationSession.create({
-        data: {
-          remoteJid: data.remoteJid,
-          pushName: data.pushName,
-          sessionId: data.remoteJid,
-          status: 'opened',
-          awaitUser: false,
-          botId: data.botId,
-          instanceId: instance.instanceId,
-          type: 'evoai',
-        },
-      });
+    return super.createNewSession(instance, data, 'evoai');
+  }
 
-      return { session };
+  /**
+   * Override the process method to directly handle audio messages
+   */
+  public async process(
+    instance: any,
+    remoteJid: string,
+    bot: Evoai,
+    session: IntegrationSession,
+    settings: EvoaiSetting,
+    content: string,
+    pushName?: string,
+    msg?: any,
+  ): Promise<void> {
+    try {
+      this.logger.debug(`[EvoAI] Processing message with custom process method`);
+      
+      // Check if this is an audio message that we should try to transcribe
+      if (msg?.messageType === 'audioMessage' && msg?.message?.audioMessage) {
+        this.logger.debug(`[EvoAI] Detected audio message, attempting transcription`);
+        
+        try {
+          // Download the audio using the whole msg object
+          const mediaBuffer = await downloadMediaMessage(msg, 'buffer', {});
+          this.logger.debug(`[EvoAI] Downloaded audio: ${mediaBuffer?.length || 0} bytes`);
+          
+          // Transcribe with OpenAI's Whisper
+          const transcribedText = await this.speechToText(mediaBuffer);
+          this.logger.debug(`[EvoAI] Transcription result: ${transcribedText || 'FAILED'}`);
+          
+          if (transcribedText) {
+            // Use the transcribed text instead of the original content
+            this.logger.debug(`[EvoAI] Using transcribed text: ${transcribedText}`);
+            
+            // Call the parent process method with the transcribed text
+            return super.process(instance, remoteJid, bot, session, settings, transcribedText, pushName, msg);
+          }
+        } catch (err) {
+          this.logger.error(`[EvoAI] Audio transcription error: ${err}`);
+        }
+      }
+      
+      // For non-audio messages or if transcription failed, proceed normally
+      return super.process(instance, remoteJid, bot, session, settings, content, pushName, msg);
     } catch (error) {
-      this.logger.error(error);
+      this.logger.error(`[EvoAI] Error in process: ${error}`);
       return;
     }
   }
 
-  private isImageMessage(content: string) {
-    return content.includes('imageMessage');
-  }
-
-  private isAudioMessage(content: string) {
-    return content.includes('audioMessage');
-  }
-
-  private async speechToText(audioBuffer: Buffer): Promise<string | null> {
-    try {
-      const apiKey = this.configService.get<any>('OPENAI')?.API_KEY;
-      if (!apiKey) {
-        this.logger.error('[EvoAI] No OpenAI API key set for Whisper transcription');
-        return null;
-      }
-      const lang = this.configService.get<Language>('LANGUAGE').includes('pt')
-        ? 'pt'
-        : this.configService.get<Language>('LANGUAGE');
-      const formData = new FormData();
-      formData.append('file', audioBuffer, 'audio.ogg');
-      formData.append('model', 'whisper-1');
-      formData.append('language', lang);
-      const response = await axios.post('https://api.openai.com/v1/audio/transcriptions', formData, {
-        headers: {
-          ...formData.getHeaders(),
-          Authorization: `Bearer ${apiKey}`,
-        },
-      });
-      return response?.data?.text || null;
-    } catch (err) {
-      this.logger.error(`[EvoAI] Whisper transcription failed: ${err}`);
-      return null;
-    }
-  }
-
-  private async sendMessageToBot(
+  protected async sendMessageToBot(
     instance: any,
     session: IntegrationSession,
     settings: EvoaiSetting,
@@ -89,64 +90,41 @@ export class EvoaiService {
     msg?: any,
   ) {
     try {
+      this.logger.debug(`[EvoAI] Sending message to bot with content: ${content}`);
+      
       const endpoint: string = evoai.agentUrl;
       const callId = `call-${uuidv4()}`;
       const taskId = `task-${uuidv4()}`;
 
       // Prepare message parts
-      const parts: any[] = [
+      const parts = [
         {
           type: 'text',
           text: content,
         },
       ];
 
-      // If content indicates an image/file, fetch and encode as base64, then send as a file part
-      if ((this.isImageMessage(content) || this.isAudioMessage(content)) && msg) {
-        const isImage = this.isImageMessage(content);
-        const isAudio = this.isAudioMessage(content);
-        this.logger.debug(`[EvoAI] Media message detected: ${content}`);
-
-        let transcribedText = null;
-        if (isAudio) {
-          try {
-            this.logger.debug(`[EvoAI] Downloading audio for Whisper transcription`);
-            const mediaBuffer = await downloadMediaMessage({ key: msg.key, message: msg.message }, 'buffer', {});
-            transcribedText = await this.speechToText(mediaBuffer);
-            if (transcribedText) {
-              parts[0].text = transcribedText;
-            } else {
-              parts[0].text = '[Audio message could not be transcribed]';
-            }
-          } catch (err) {
-            this.logger.error(`[EvoAI] Failed to transcribe audio: ${err}`);
-            parts[0].text = '[Audio message could not be transcribed]';
-          }
-        } else if (isImage) {
-          const contentSplit = content.split('|');
-          parts[0].text = contentSplit[2] || content;
-          let fileContent = null,
-            fileName = null,
-            mimeType = null;
-          try {
-            this.logger.debug(
-              `[EvoAI] Fetching image using downloadMediaMessage with msg.key: ${JSON.stringify(msg.key)}`,
-            );
-            const mediaBuffer = await downloadMediaMessage({ key: msg.key, message: msg.message }, 'buffer', {});
-            fileContent = Buffer.from(mediaBuffer).toString('base64');
-            fileName = contentSplit[2] || `${msg.key.id}.jpg`;
-            mimeType = 'image/jpeg';
-            parts.push({
-              type: 'file',
-              file: {
-                name: fileName,
-                bytes: fileContent,
-                mimeType: mimeType,
-              },
-            });
-          } catch (fileErr) {
-            this.logger.error(`[EvoAI] Failed to fetch or encode image for EvoAI: ${fileErr}`);
-          }
+      // Handle image message if present
+      if (this.isImageMessage(content) && msg) {
+        const contentSplit = content.split('|');
+        parts[0].text = contentSplit[2] || content;
+        
+        try {
+          // Download the image
+          const mediaBuffer = await downloadMediaMessage(msg, 'buffer', {});
+          const fileContent = Buffer.from(mediaBuffer).toString('base64');
+          const fileName = contentSplit[2] || `${msg.key?.id || 'image'}.jpg`;
+          
+          parts.push({
+            type: 'file',
+            file: {
+              name: fileName,
+              bytes: fileContent,
+              mimeType: 'image/jpeg',
+            },
+          } as any);
+        } catch (fileErr) {
+          this.logger.error(`[EvoAI] Failed to process image: ${fileErr}`);
         }
       }
 
@@ -224,301 +202,4 @@ export class EvoaiService {
       return;
     }
   }
-
-  private async sendMessageWhatsApp(instance: any, remoteJid: string, message: string, settings: EvoaiSetting) {
-    const linkRegex = /(!?)\[(.*?)\]\((.*?)\)/g;
-
-    let textBuffer = '';
-    let lastIndex = 0;
-
-    let match: RegExpExecArray | null;
-
-    const getMediaType = (url: string): string | null => {
-      const extension = url.split('.').pop()?.toLowerCase();
-      const imageExtensions = ['jpg', 'jpeg', 'png', 'gif', 'bmp', 'webp'];
-      const audioExtensions = ['mp3', 'wav', 'aac', 'ogg'];
-      const videoExtensions = ['mp4', 'avi', 'mkv', 'mov'];
-      const documentExtensions = ['pdf', 'doc', 'docx', 'xls', 'xlsx', 'ppt', 'pptx', 'txt'];
-
-      if (imageExtensions.includes(extension || '')) return 'image';
-      if (audioExtensions.includes(extension || '')) return 'audio';
-      if (videoExtensions.includes(extension || '')) return 'video';
-      if (documentExtensions.includes(extension || '')) return 'document';
-      return null;
-    };
-
-    while ((match = linkRegex.exec(message)) !== null) {
-      const [fullMatch, exclMark, altText, url] = match;
-      const mediaType = getMediaType(url);
-
-      const beforeText = message.slice(lastIndex, match.index);
-      if (beforeText) {
-        textBuffer += beforeText;
-      }
-
-      if (mediaType) {
-        const splitMessages = settings.splitMessages ?? false;
-        const timePerChar = settings.timePerChar ?? 0;
-        const minDelay = 1000;
-        const maxDelay = 20000;
-
-        if (textBuffer.trim()) {
-          if (splitMessages) {
-            const multipleMessages = textBuffer.trim().split('\n\n');
-
-            for (let index = 0; index < multipleMessages.length; index++) {
-              const message = multipleMessages[index];
-
-              const delay = Math.min(Math.max(message.length * timePerChar, minDelay), maxDelay);
-
-              if (instance.integration === Integration.WHATSAPP_BAILEYS) {
-                await instance.client.presenceSubscribe(remoteJid);
-                await instance.client.sendPresenceUpdate('composing', remoteJid);
-              }
-
-              await new Promise<void>((resolve) => {
-                setTimeout(async () => {
-                  await instance.textMessage(
-                    {
-                      number: remoteJid.split('@')[0],
-                      delay: settings?.delayMessage || 1000,
-                      text: message,
-                    },
-                    false,
-                  );
-                  resolve();
-                }, delay);
-              });
-
-              if (instance.integration === Integration.WHATSAPP_BAILEYS) {
-                await instance.client.sendPresenceUpdate('paused', remoteJid);
-              }
-            }
-          } else {
-            await instance.textMessage(
-              {
-                number: remoteJid.split('@')[0],
-                delay: settings?.delayMessage || 1000,
-                text: textBuffer.trim(),
-              },
-              false,
-            );
-          }
-          textBuffer = '';
-        }
-
-        if (mediaType === 'audio') {
-          await instance.audioWhatsapp({
-            number: remoteJid.split('@')[0],
-            delay: settings?.delayMessage || 1000,
-            audio: url,
-            caption: altText,
-          });
-        } else {
-          await instance.mediaMessage(
-            {
-              number: remoteJid.split('@')[0],
-              delay: settings?.delayMessage || 1000,
-              mediatype: mediaType,
-              media: url,
-              caption: altText,
-            },
-            null,
-            false,
-          );
-        }
-      } else {
-        textBuffer += `[${altText}](${url})`;
-      }
-
-      lastIndex = linkRegex.lastIndex;
-    }
-
-    if (lastIndex < message.length) {
-      const remainingText = message.slice(lastIndex);
-      if (remainingText.trim()) {
-        textBuffer += remainingText;
-      }
-    }
-
-    const splitMessages = settings.splitMessages ?? false;
-    const timePerChar = settings.timePerChar ?? 0;
-    const minDelay = 1000;
-    const maxDelay = 20000;
-
-    if (textBuffer.trim()) {
-      if (splitMessages) {
-        const multipleMessages = textBuffer.trim().split('\n\n');
-
-        for (let index = 0; index < multipleMessages.length; index++) {
-          const message = multipleMessages[index];
-
-          const delay = Math.min(Math.max(message.length * timePerChar, minDelay), maxDelay);
-
-          if (instance.integration === Integration.WHATSAPP_BAILEYS) {
-            await instance.client.presenceSubscribe(remoteJid);
-            await instance.client.sendPresenceUpdate('composing', remoteJid);
-          }
-
-          await new Promise<void>((resolve) => {
-            setTimeout(async () => {
-              await instance.textMessage(
-                {
-                  number: remoteJid.split('@')[0],
-                  delay: settings?.delayMessage || 1000,
-                  text: message,
-                },
-                false,
-              );
-              resolve();
-            }, delay);
-          });
-
-          if (instance.integration === Integration.WHATSAPP_BAILEYS) {
-            await instance.client.sendPresenceUpdate('paused', remoteJid);
-          }
-        }
-      } else {
-        await instance.textMessage(
-          {
-            number: remoteJid.split('@')[0],
-            delay: settings?.delayMessage || 1000,
-            text: textBuffer.trim(),
-          },
-          false,
-        );
-      }
-    }
-
-    sendTelemetry('/message/sendText');
-  }
-
-  private async initNewSession(
-    instance: any,
-    remoteJid: string,
-    evoai: Evoai,
-    settings: EvoaiSetting,
-    session: IntegrationSession,
-    content: string,
-    pushName?: string,
-    msg?: any,
-  ) {
-    const data = await this.createNewSession(instance, {
-      remoteJid,
-      pushName,
-      botId: evoai.id,
-    });
-
-    if (data.session) {
-      session = data.session;
-    }
-
-    await this.sendMessageToBot(instance, session, settings, evoai, remoteJid, pushName, content, msg);
-
-    return;
-  }
-
-  public async processEvoai(
-    instance: any,
-    remoteJid: string,
-    evoai: Evoai,
-    session: IntegrationSession,
-    settings: EvoaiSetting,
-    content: string,
-    pushName?: string,
-    msg?: any,
-  ) {
-    if (session && session.status !== 'opened') {
-      return;
-    }
-
-    if (session && settings.expire && settings.expire > 0) {
-      const now = Date.now();
-
-      const sessionUpdatedAt = new Date(session.updatedAt).getTime();
-
-      const diff = now - sessionUpdatedAt;
-
-      const diffInMinutes = Math.floor(diff / 1000 / 60);
-
-      if (diffInMinutes > settings.expire) {
-        if (settings.keepOpen) {
-          await this.prismaRepository.integrationSession.update({
-            where: {
-              id: session.id,
-            },
-            data: {
-              status: 'closed',
-            },
-          });
-        } else {
-          await this.prismaRepository.integrationSession.deleteMany({
-            where: {
-              botId: evoai.id,
-              remoteJid: remoteJid,
-            },
-          });
-        }
-
-        await this.initNewSession(instance, remoteJid, evoai, settings, session, content, pushName, msg);
-        return;
-      }
-    }
-
-    if (!session) {
-      await this.initNewSession(instance, remoteJid, evoai, settings, session, content, pushName, msg);
-      return;
-    }
-
-    await this.prismaRepository.integrationSession.update({
-      where: {
-        id: session.id,
-      },
-      data: {
-        status: 'opened',
-        awaitUser: false,
-      },
-    });
-
-    if (!content) {
-      if (settings.unknownMessage) {
-        this.waMonitor.waInstances[instance.instanceName].textMessage(
-          {
-            number: remoteJid.split('@')[0],
-            delay: settings.delayMessage || 1000,
-            text: settings.unknownMessage,
-          },
-          false,
-        );
-
-        sendTelemetry('/message/sendText');
-      }
-      return;
-    }
-
-    if (settings.keywordFinish && content.toLowerCase() === settings.keywordFinish.toLowerCase()) {
-      if (settings.keepOpen) {
-        await this.prismaRepository.integrationSession.update({
-          where: {
-            id: session.id,
-          },
-          data: {
-            status: 'closed',
-          },
-        });
-      } else {
-        await this.prismaRepository.integrationSession.deleteMany({
-          where: {
-            botId: evoai.id,
-            remoteJid: remoteJid,
-          },
-        });
-      }
-      return;
-    }
-
-    await this.sendMessageToBot(instance, session, settings, evoai, remoteJid, pushName, content, msg);
-
-    return;
-  }
 }

src/api/integrations/chatbot/n8n/controllers/n8n.controller.ts

@@ -1,4 +1,3 @@
-import { IgnoreJidDto } from '@api/dto/chatbot.dto';
 import { InstanceDto } from '@api/dto/instance.dto';
 import { N8nDto } from '@api/integrations/chatbot/n8n/dto/n8n.dto';
 import { N8nService } from '@api/integrations/chatbot/n8n/services/n8n.service';
@@ -7,12 +6,11 @@ import { WAMonitoringService } from '@api/services/monitor.service';
 import { configService } from '@config/env.config';
 import { Logger } from '@config/logger.config';
 import { BadRequestException } from '@exceptions';
-import { N8n as N8nModel } from '@prisma/client';
-import { getConversationMessage } from '@utils/getConversationMessage';
+import { IntegrationSession, N8n as N8nModel } from '@prisma/client';
 
-import { ChatbotController, ChatbotControllerInterface, EmitData } from '../../chatbot.controller';
+import { BaseChatbotController } from '../../base-chatbot.controller';
 
-export class N8nController extends ChatbotController implements ChatbotControllerInterface {
+export class N8nController extends BaseChatbotController<N8nModel, N8nDto> {
   constructor(
     private readonly n8nService: N8nService,
     prismaRepository: PrismaRepository,
@@ -26,6 +24,7 @@ export class N8nController extends ChatbotController implements ChatbotControlle
   }
 
   public readonly logger = new Logger('N8nController');
+  protected readonly integrationName = 'N8n';
 
   integrationEnabled = configService.get('N8N').ENABLED;
   botRepository: any;
@@ -33,6 +32,54 @@ export class N8nController extends ChatbotController implements ChatbotControlle
   sessionRepository: any;
   userMessageDebounce: { [key: string]: { message: string; timeoutId: NodeJS.Timeout } } = {};
 
+  protected getFallbackBotId(settings: any): string | undefined {
+    return settings?.fallbackId;
+  }
+
+  protected getFallbackFieldName(): string {
+    return 'n8nIdFallback';
+  }
+
+  protected getIntegrationType(): string {
+    return 'n8n';
+  }
+
+  protected getAdditionalBotData(data: N8nDto): Record<string, any> {
+    return {
+      webhookUrl: data.webhookUrl,
+      basicAuthUser: data.basicAuthUser,
+      basicAuthPass: data.basicAuthPass,
+    };
+  }
+
+  // Implementation for bot-specific updates
+  protected getAdditionalUpdateFields(data: N8nDto): Record<string, any> {
+    return {
+      webhookUrl: data.webhookUrl,
+      basicAuthUser: data.basicAuthUser,
+      basicAuthPass: data.basicAuthPass,
+    };
+  }
+
+  // Implementation for bot-specific duplicate validation on update
+  protected async validateNoDuplicatesOnUpdate(botId: string, instanceId: string, data: N8nDto): Promise<void> {
+    const checkDuplicate = await this.botRepository.findFirst({
+      where: {
+        id: {
+          not: botId,
+        },
+        instanceId: instanceId,
+        webhookUrl: data.webhookUrl,
+        basicAuthUser: data.basicAuthUser,
+        basicAuthPass: data.basicAuthPass,
+      },
+    });
+
+    if (checkDuplicate) {
+      throw new Error('N8n already exists');
+    }
+  }
+
   // Bots
   public async createBot(instance: InstanceDto, data: N8nDto) {
     if (!this.integrationEnabled) throw new BadRequestException('N8n is disabled');
@@ -45,74 +92,7 @@ export class N8nController extends ChatbotController implements ChatbotControlle
       })
       .then((instance) => instance.id);
 
-    if (
-      !data.expire ||
-      !data.keywordFinish ||
-      !data.delayMessage ||
-      !data.unknownMessage ||
-      !data.listeningFromMe ||
-      !data.stopBotFromMe ||
-      !data.keepOpen ||
-      !data.debounceTime ||
-      !data.ignoreJids ||
-      !data.splitMessages ||
-      !data.timePerChar
-    ) {
-      const defaultSettingCheck = await this.settingsRepository.findFirst({
-        where: {
-          instanceId: instanceId,
-        },
-      });
-
-      if (data.expire === undefined || data.expire === null) data.expire = defaultSettingCheck.expire;
-      if (data.keywordFinish === undefined || data.keywordFinish === null)
-        data.keywordFinish = defaultSettingCheck.keywordFinish;
-      if (data.delayMessage === undefined || data.delayMessage === null)
-        data.delayMessage = defaultSettingCheck.delayMessage;
-      if (data.unknownMessage === undefined || data.unknownMessage === null)
-        data.unknownMessage = defaultSettingCheck.unknownMessage;
-      if (data.listeningFromMe === undefined || data.listeningFromMe === null)
-        data.listeningFromMe = defaultSettingCheck.listeningFromMe;
-      if (data.stopBotFromMe === undefined || data.stopBotFromMe === null)
-        data.stopBotFromMe = defaultSettingCheck.stopBotFromMe;
-      if (data.keepOpen === undefined || data.keepOpen === null) data.keepOpen = defaultSettingCheck.keepOpen;
-      if (data.debounceTime === undefined || data.debounceTime === null)
-        data.debounceTime = defaultSettingCheck.debounceTime;
-      if (data.ignoreJids === undefined || data.ignoreJids === null) data.ignoreJids = defaultSettingCheck.ignoreJids;
-      if (data.splitMessages === undefined || data.splitMessages === null)
-        data.splitMessages = defaultSettingCheck?.splitMessages ?? false;
-      if (data.timePerChar === undefined || data.timePerChar === null)
-        data.timePerChar = defaultSettingCheck?.timePerChar ?? 0;
-
-      if (!defaultSettingCheck) {
-        await this.settings(instance, {
-          expire: data.expire,
-          keywordFinish: data.keywordFinish,
-          delayMessage: data.delayMessage,
-          unknownMessage: data.unknownMessage,
-          listeningFromMe: data.listeningFromMe,
-          stopBotFromMe: data.stopBotFromMe,
-          keepOpen: data.keepOpen,
-          debounceTime: data.debounceTime,
-          ignoreJids: data.ignoreJids,
-          splitMessages: data.splitMessages,
-          timePerChar: data.timePerChar,
-        });
-      }
-    }
-
-    const checkTriggerAll = await this.botRepository.findFirst({
-      where: {
-        enabled: true,
-        triggerType: 'all',
-        instanceId: instanceId,
-      },
-    });
-
-    if (checkTriggerAll && data.triggerType === 'all') {
-      throw new Error('You already have an n8n with an "All" trigger, you cannot have more bots while it is active');
-    }
-
+    // Check for N8n-specific duplicate
     const checkDuplicate = await this.botRepository.findFirst({
       where: {
         instanceId: instanceId,
@@ -126,72 +106,8 @@ export class N8nController extends ChatbotController implements ChatbotControlle
       throw new Error('N8n already exists');
     }
 
-    if (data.triggerType === 'keyword') {
-      if (!data.triggerOperator || !data.triggerValue) {
-        throw new Error('Trigger operator and value are required');
-      }
-
-      const checkDuplicate = await this.botRepository.findFirst({
-        where: {
-          triggerOperator: data.triggerOperator,
-          triggerValue: data.triggerValue,
-          instanceId: instanceId,
-        },
-      });
-
-      if (checkDuplicate) {
-        throw new Error('Trigger already exists');
-      }
-    }
-
-    if (data.triggerType === 'advanced') {
-      if (!data.triggerValue) {
-        throw new Error('Trigger value is required');
-      }
-
-      const checkDuplicate = await this.botRepository.findFirst({
-        where: {
-          triggerValue: data.triggerValue,
-          instanceId: instanceId,
-        },
-      });
-
-      if (checkDuplicate) {
-        throw new Error('Trigger already exists');
-      }
-    }
-
-    try {
-      const bot = await this.botRepository.create({
-        data: {
-          enabled: data?.enabled,
-          description: data.description,
-          webhookUrl: data.webhookUrl,
-          basicAuthUser: data.basicAuthUser,
-          basicAuthPass: data.basicAuthPass,
-          expire: data.expire,
-          keywordFinish: data.keywordFinish,
-          delayMessage: data.delayMessage,
-          unknownMessage: data.unknownMessage,
-          listeningFromMe: data.listeningFromMe,
-          stopBotFromMe: data.stopBotFromMe,
-          keepOpen: data.keepOpen,
-          debounceTime: data.debounceTime,
-          instanceId: instanceId,
-          triggerType: data.triggerType,
-          triggerOperator: data.triggerOperator,
-          triggerValue: data.triggerValue,
-          ignoreJids: data.ignoreJids,
-          splitMessages: data.splitMessages,
-          timePerChar: data.timePerChar,
-        },
-      });
-
-      return bot;
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error creating n8n');
-    }
+    // Let the base class handle the rest of the bot creation process
+    return super.createBot(instance, data);
   }
 
   public async findBot(instance: InstanceDto) {
@@ -246,643 +162,17 @@ export class N8nController extends ChatbotController implements ChatbotControlle
     return bot;
   }
 
-  public async updateBot(instance: InstanceDto, botId: string, data: N8nDto) {
-    if (!this.integrationEnabled) throw new BadRequestException('N8n is disabled');
-
-    const instanceId = await this.prismaRepository.instance
-      .findFirst({
-        where: {
-          name: instance.instanceName,
-        },
-      })
-      .then((instance) => instance.id);
-
-    const bot = await this.botRepository.findFirst({
-      where: {
-        id: botId,
-      },
-    });
-
-    if (!bot) {
-      throw new Error('N8n not found');
-    }
-
-    if (bot.instanceId !== instanceId) {
-      throw new Error('N8n not found');
-    }
-
-    if (data.triggerType === 'all') {
-      const checkTriggerAll = await this.botRepository.findFirst({
-        where: {
-          enabled: true,
-          triggerType: 'all',
-          id: {
-            not: botId,
-          },
-          instanceId: instanceId,
-        },
-      });
-
-      if (checkTriggerAll) {
-        throw new Error('You already have an n8n with an "All" trigger, you cannot have more bots while it is active');
-      }
-    }
-
-    const checkDuplicate = await this.botRepository.findFirst({
-      where: {
-        id: {
-          not: botId,
-        },
-        instanceId: instanceId,
-        webhookUrl: data.webhookUrl,
-        basicAuthUser: data.basicAuthUser,
-        basicAuthPass: data.basicAuthPass,
-      },
-    });
-
-    if (checkDuplicate) {
-      throw new Error('N8n already exists');
-    }
-
-    if (data.triggerType === 'keyword') {
-      if (!data.triggerOperator || !data.triggerValue) {
-        throw new Error('Trigger operator and value are required');
-      }
-
-      const checkDuplicate = await this.botRepository.findFirst({
-        where: {
-          triggerOperator: data.triggerOperator,
-          triggerValue: data.triggerValue,
-          id: { not: botId },
-          instanceId: instanceId,
-        },
-      });
-
-      if (checkDuplicate) {
-        throw new Error('Trigger already exists');
-      }
-    }
-
-    if (data.triggerType === 'advanced') {
-      if (!data.triggerValue) {
-        throw new Error('Trigger value is required');
-      }
-
-      const checkDuplicate = await this.botRepository.findFirst({
-        where: {
-          triggerValue: data.triggerValue,
-          id: { not: botId },
-          instanceId: instanceId,
-        },
-      });
-
-      if (checkDuplicate) {
-        throw new Error('Trigger already exists');
-      }
-    }
-
-    try {
-      const bot = await this.botRepository.update({
-        where: {
-          id: botId,
-        },
-        data: {
-          enabled: data?.enabled,
-          description: data.description,
-          webhookUrl: data.webhookUrl,
-          basicAuthUser: data.basicAuthUser,
-          basicAuthPass: data.basicAuthPass,
-          expire: data.expire,
-          keywordFinish: data.keywordFinish,
-          delayMessage: data.delayMessage,
-          unknownMessage: data.unknownMessage,
-          listeningFromMe: data.listeningFromMe,
-          stopBotFromMe: data.stopBotFromMe,
-          keepOpen: data.keepOpen,
-          debounceTime: data.debounceTime,
-          instanceId: instanceId,
-          triggerType: data.triggerType,
-          triggerOperator: data.triggerOperator,
-          triggerValue: data.triggerValue,
-          ignoreJids: data.ignoreJids,
-          splitMessages: data.splitMessages,
-          timePerChar: data.timePerChar,
-        },
-      });
-
-      return bot;
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error updating n8n');
-    }
-  }
-
-  public async deleteBot(instance: InstanceDto, botId: string) {
-    if (!this.integrationEnabled) throw new BadRequestException('N8n is disabled');
-
-    const instanceId = await this.prismaRepository.instance
-      .findFirst({
-        where: {
-          name: instance.instanceName,
-        },
-      })
-      .then((instance) => instance.id);
-
-    const bot = await this.botRepository.findFirst({
-      where: {
-        id: botId,
-      },
-    });
-
-    if (!bot) {
-      throw new Error('N8n not found');
-    }
-
-    if (bot.instanceId !== instanceId) {
-      throw new Error('N8n not found');
-    }
-    try {
-      await this.prismaRepository.integrationSession.deleteMany({
-        where: {
-          botId: botId,
-        },
-      });
-
-      await this.botRepository.delete({
-        where: {
-          id: botId,
-        },
-      });
-
-      return { bot: { id: botId } };
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error deleting n8n bot');
-    }
-  }
-
-  // Settings
-  public async settings(instance: InstanceDto, data: any) {
-    if (!this.integrationEnabled) throw new BadRequestException('N8n is disabled');
-
-    try {
-      const instanceId = await this.prismaRepository.instance
-        .findFirst({
-          where: {
-            name: instance.instanceName,
-          },
-        })
-        .then((instance) => instance.id);
-
-      const settings = await this.settingsRepository.findFirst({
-        where: {
-          instanceId: instanceId,
-        },
-      });
-
-      if (settings) {
-        const updateSettings = await this.settingsRepository.update({
-          where: {
-            id: settings.id,
-          },
-          data: {
-            expire: data.expire,
-            keywordFinish: data.keywordFinish,
-            delayMessage: data.delayMessage,
-            unknownMessage: data.unknownMessage,
-            listeningFromMe: data.listeningFromMe,
-            stopBotFromMe: data.stopBotFromMe,
-            keepOpen: data.keepOpen,
-            debounceTime: data.debounceTime,
-            n8nIdFallback: data.n8nIdFallback,
-            ignoreJids: data.ignoreJids,
-            splitMessages: data.splitMessages,
-            timePerChar: data.timePerChar,
-          },
-        });
-
-        return {
-          expire: updateSettings.expire,
-          keywordFinish: updateSettings.keywordFinish,
-          delayMessage: updateSettings.delayMessage,
-          unknownMessage: updateSettings.unknownMessage,
-          listeningFromMe: updateSettings.listeningFromMe,
-          stopBotFromMe: updateSettings.stopBotFromMe,
-          keepOpen: updateSettings.keepOpen,
-          debounceTime: updateSettings.debounceTime,
-          n8nIdFallback: updateSettings.n8nIdFallback,
-          ignoreJids: updateSettings.ignoreJids,
-          splitMessages: updateSettings.splitMessages,
-          timePerChar: updateSettings.timePerChar,
-        };
-      }
-
-      const newSettings = await this.settingsRepository.create({
-        data: {
-          expire: data.expire,
-          keywordFinish: data.keywordFinish,
-          delayMessage: data.delayMessage,
-          unknownMessage: data.unknownMessage,
-          listeningFromMe: data.listeningFromMe,
-          stopBotFromMe: data.stopBotFromMe,
-          keepOpen: data.keepOpen,
-          debounceTime: data.debounceTime,
-          n8nIdFallback: data.n8nIdFallback,
-          ignoreJids: data.ignoreJids,
-          instanceId: instanceId,
-          splitMessages: data.splitMessages,
-          timePerChar: data.timePerChar,
-        },
-      });
-
-      return {
-        expire: newSettings.expire,
-        keywordFinish: newSettings.keywordFinish,
-        delayMessage: newSettings.delayMessage,
-        unknownMessage: newSettings.unknownMessage,
-        listeningFromMe: newSettings.listeningFromMe,
-        stopBotFromMe: newSettings.stopBotFromMe,
-        keepOpen: newSettings.keepOpen,
-        debounceTime: newSettings.debounceTime,
-        n8nIdFallback: newSettings.n8nIdFallback,
-        ignoreJids: newSettings.ignoreJids,
-        splitMessages: newSettings.splitMessages,
-        timePerChar: newSettings.timePerChar,
-      };
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error setting default settings');
-    }
-  }
-
-  public async fetchSettings(instance: InstanceDto) {
-    if (!this.integrationEnabled) throw new BadRequestException('N8n is disabled');
-
-    try {
-      const instanceId = await this.prismaRepository.instance
-        .findFirst({
-          where: {
-            name: instance.instanceName,
-          },
-        })
-        .then((instance) => instance.id);
-
-      const settings = await this.settingsRepository.findFirst({
-        where: {
-          instanceId: instanceId,
-        },
-        include: {
-          Fallback: true,
-        },
-      });
-
-      if (!settings) {
-        return {
-          expire: 0,
-          keywordFinish: '',
-          delayMessage: 0,
-          unknownMessage: '',
-          listeningFromMe: false,
-          stopBotFromMe: false,
-          keepOpen: false,
-          ignoreJids: [],
-          splitMessages: false,
-          timePerChar: 0,
-          n8nIdFallback: '',
-          fallback: null,
-        };
-      }
-
-      return {
-        expire: settings.expire,
-        keywordFinish: settings.keywordFinish,
-        delayMessage: settings.delayMessage,
-        unknownMessage: settings.unknownMessage,
-        listeningFromMe: settings.listeningFromMe,
-        stopBotFromMe: settings.stopBotFromMe,
-        keepOpen: settings.keepOpen,
-        ignoreJids: settings.ignoreJids,
-        splitMessages: settings.splitMessages,
-        timePerChar: settings.timePerChar,
-        n8nIdFallback: settings.n8nIdFallback,
-        fallback: settings.Fallback,
-      };
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error fetching default settings');
-    }
-  }
-
-  // Sessions
-  public async changeStatus(instance: InstanceDto, data: any) {
-    if (!this.integrationEnabled) throw new BadRequestException('N8n is disabled');
-
-    try {
-      const instanceId = await this.prismaRepository.instance
-        .findFirst({
-          where: {
-            name: instance.instanceName,
-          },
-        })
-        .then((instance) => instance.id);
-
-      const defaultSettingCheck = await this.settingsRepository.findFirst({
-        where: {
-          instanceId,
-        },
-      });
-
-      const remoteJid = data.remoteJid;
-      const status = data.status;
-
-      if (status === 'delete') {
-        await this.sessionRepository.deleteMany({
-          where: {
-            remoteJid: remoteJid,
-            botId: { not: null },
-          },
-        });
-
-        return { bot: { remoteJid: remoteJid, status: status } };
-      }
-
-      if (status === 'closed') {
-        if (defaultSettingCheck?.keepOpen) {
-          await this.sessionRepository.updateMany({
-            where: {
-              remoteJid: remoteJid,
-              botId: { not: null },
-            },
-            data: {
-              status: 'closed',
-            },
-          });
-        } else {
-          await this.sessionRepository.deleteMany({
-            where: {
-              remoteJid: remoteJid,
-              botId: { not: null },
-            },
-          });
-        }
-
-        return { bot: { ...instance, bot: { remoteJid: remoteJid, status: status } } };
-      } else {
-        const session = await this.sessionRepository.updateMany({
-          where: {
-            instanceId: instanceId,
-            remoteJid: remoteJid,
-            botId: { not: null },
-          },
-          data: {
-            status: status,
-          },
-        });
-
-        const botData = {
-          remoteJid: remoteJid,
-          status: status,
-          session,
-        };
-
-        return { bot: { ...instance, bot: botData } };
-      }
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error changing status');
-    }
-  }
-
-  public async fetchSessions(instance: InstanceDto, botId: string, remoteJid?: string) {
-    if (!this.integrationEnabled) throw new BadRequestException('N8n is disabled');
-
-    try {
-      const instanceId = await this.prismaRepository.instance
-        .findFirst({
-          where: {
-            name: instance.instanceName,
-          },
-        })
-        .then((instance) => instance.id);
-
-      const bot = await this.botRepository.findFirst({
-        where: {
-          id: botId,
-        },
-      });
-
-      if (bot && bot.instanceId !== instanceId) {
-        throw new Error('N8n not found');
-      }
-
-      return await this.sessionRepository.findMany({
-        where: {
-          instanceId: instanceId,
-          remoteJid,
-          botId: bot ? botId : { not: null },
-          type: 'n8n',
-        },
-      });
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error fetching sessions');
-    }
-  }
-
-  public async ignoreJid(instance: InstanceDto, data: IgnoreJidDto) {
-    if (!this.integrationEnabled) throw new BadRequestException('N8n is disabled');
-
-    try {
-      const instanceId = await this.prismaRepository.instance
-        .findFirst({
-          where: {
-            name: instance.instanceName,
-          },
-        })
-        .then((instance) => instance.id);
-
-      const settings = await this.settingsRepository.findFirst({
-        where: {
-          instanceId: instanceId,
-        },
-      });
-
-      if (!settings) {
-        throw new Error('Settings not found');
-      }
-
-      let ignoreJids: any = settings?.ignoreJids || [];
-
-      if (data.action === 'add') {
-        if (ignoreJids.includes(data.remoteJid)) return { ignoreJids: ignoreJids };
-
-        ignoreJids.push(data.remoteJid);
-      } else {
-        ignoreJids = ignoreJids.filter((jid) => jid !== data.remoteJid);
-      }
-
-      const updateSettings = await this.settingsRepository.update({
-        where: {
-          id: settings.id,
-        },
-        data: {
-          ignoreJids: ignoreJids,
-        },
-      });
-
-      return {
-        ignoreJids: updateSettings.ignoreJids,
-      };
-    } catch (error) {
-      this.logger.error(error);
-      throw new Error('Error setting default settings');
-    }
-  }
-
-  // Emit
-  public async emit({ instance, remoteJid, msg }: EmitData) {
-    if (!this.integrationEnabled) return;
-
-    try {
-      const settings = await this.settingsRepository.findFirst({
-        where: {
-          instanceId: instance.instanceId,
-        },
-      });
-
-      if (this.checkIgnoreJids(settings?.ignoreJids, remoteJid)) return;
-
-      const session = await this.getSession(remoteJid, instance);
-
-      const content = getConversationMessage(msg);
-
-      let findBot = (await this.findBotTrigger(this.botRepository, content, instance, session)) as N8nModel;
-
-      if (!findBot) {
-        const fallback = await this.settingsRepository.findFirst({
-          where: {
-            instanceId: instance.instanceId,
-          },
-        });
-
-        if (fallback?.n8nIdFallback) {
-          const findFallback = await this.botRepository.findFirst({
-            where: {
-              id: fallback.n8nIdFallback,
-            },
-          });
-
-          findBot = findFallback;
-        } else {
-          return;
-        }
-      }
-
-      let expire = findBot?.expire;
-      let keywordFinish = findBot?.keywordFinish;
-      let delayMessage = findBot?.delayMessage;
-      let unknownMessage = findBot?.unknownMessage;
-      let listeningFromMe = findBot?.listeningFromMe;
-      let stopBotFromMe = findBot?.stopBotFromMe;
-      let keepOpen = findBot?.keepOpen;
-      let debounceTime = findBot?.debounceTime;
-      let ignoreJids = findBot?.ignoreJids;
-      let splitMessages = findBot?.splitMessages;
-      let timePerChar = findBot?.timePerChar;
-
-      if (expire === undefined || expire === null) expire = settings.expire;
-      if (keywordFinish === undefined || keywordFinish === null) keywordFinish = settings.keywordFinish;
-      if (delayMessage === undefined || delayMessage === null) delayMessage = settings.delayMessage;
-      if (unknownMessage === undefined || unknownMessage === null) unknownMessage = settings.unknownMessage;
-      if (listeningFromMe === undefined || listeningFromMe === null) listeningFromMe = settings.listeningFromMe;
-      if (stopBotFromMe === undefined || stopBotFromMe === null) stopBotFromMe = settings.stopBotFromMe;
-      if (keepOpen === undefined || keepOpen === null) keepOpen = settings.keepOpen;
-      if (debounceTime === undefined || debounceTime === null) debounceTime = settings.debounceTime;
-      if (ignoreJids === undefined || ignoreJids === null) ignoreJids = settings.ignoreJids;
-      if (splitMessages === undefined || splitMessages === null) splitMessages = settings?.splitMessages ?? false;
-      if (timePerChar === undefined || timePerChar === null) timePerChar = settings?.timePerChar ?? 0;
-
-      const key = msg.key as {
-        id: string;
-        remoteJid: string;
-        fromMe: boolean;
-        participant: string;
-      };
-
-      if (stopBotFromMe && key.fromMe && session) {
-        await this.prismaRepository.integrationSession.update({
-          where: {
-            id: session.id,
-          },
-          data: {
-            status: 'paused',
-          },
-        });
-        return;
-      }
-
-      if (!listeningFromMe && key.fromMe) {
-        return;
-      }
-
-      if (session && !session.awaitUser) {
-        return;
-      }
-
-      if (debounceTime && debounceTime > 0) {
-        this.processDebounce(this.userMessageDebounce, content, remoteJid, debounceTime, async (debouncedContent) => {
-          await this.n8nService.processN8n(
-            this.waMonitor.waInstances[instance.instanceName],
-            remoteJid,
-            findBot,
-            session,
-            {
-              ...settings,
-              expire,
-              keywordFinish,
-              delayMessage,
-              unknownMessage,
-              listeningFromMe,
-              stopBotFromMe,
-              keepOpen,
-              debounceTime,
-              ignoreJids,
-              splitMessages,
-              timePerChar,
-            },
-            debouncedContent,
-            msg?.pushName,
-          );
-        });
-      } else {
-        await this.n8nService.processN8n(
-          this.waMonitor.waInstances[instance.instanceName],
-          remoteJid,
-          findBot,
-          session,
-          {
-            ...settings,
-            expire,
-            keywordFinish,
-            delayMessage,
-            unknownMessage,
-            listeningFromMe,
-            stopBotFromMe,
-            keepOpen,
-            debounceTime,
-            ignoreJids,
-            splitMessages,
-            timePerChar,
-          },
-          content,
-          msg?.pushName,
-        );
-      }
-
-      return;
-    } catch (error) {
-      this.logger.error(error);
-      return;
-    }
+  // Process N8n-specific bot logic
+  protected async processBot(
+    instance: any,
+    remoteJid: string,
+    bot: N8nModel,
+    session: IntegrationSession,
+    settings: any,
+    content: string,
+    pushName?: string,
+    msg?: any,
+  ) {
+    this.n8nService.process(instance, remoteJid, bot, session, settings, content, pushName, msg);
   }
 }

src/api/integrations/chatbot/n8n/dto/n8n.dto.ts

@@ -1,18 +1,18 @@
 import { TriggerOperator, TriggerType } from '@prisma/client';
+import { BaseChatbotDto, BaseChatbotSettingDto } from '../../base-chatbot.dto';
 
-export class N8nDto {
-  enabled?: boolean;
-  description?: string;
+export class N8nDto extends BaseChatbotDto {
+  // N8n specific fields
   webhookUrl?: string;
   basicAuthUser?: string;
   basicAuthPass?: string;
 
   // Advanced bot properties (copied from DifyDto style)
-  triggerType?: TriggerType;
+  triggerType: TriggerType;
   triggerOperator?: TriggerOperator;
   triggerValue?: string;
   expire?: number;
-  keywordFinish?: string;
+  keywordFinish?: string[];
   delayMessage?: number;
   unknownMessage?: string;
   listeningFromMe?: boolean;
@@ -24,8 +24,8 @@ export class N8nDto {
   timePerChar?: number;
 }
 
-export class N8nSettingDto {
-  // Add settings fields here if needed for compatibility
+export class N8nSettingDto extends BaseChatbotSettingDto {
+  // N8n specific fields
 }
 
 export class N8nMessageDto {

src/api/integrations/chatbot/n8n/services/n8n.service.ts

@@ -1,22 +1,29 @@
 import { InstanceDto } from '@api/dto/instance.dto';
 import { PrismaRepository } from '@api/repository/repository.service';
 import { WAMonitoringService } from '@api/services/monitor.service';
-import { Logger } from '@config/logger.config';
+import { ConfigService } from '@config/env.config';
 import { IntegrationSession, N8n, N8nSetting } from '@prisma/client';
 import { sendTelemetry } from '@utils/sendTelemetry';
 import axios from 'axios';
+import { downloadMediaMessage } from 'baileys';
 
+import { BaseChatbotService } from '../../base-chatbot.service';
 import { N8nDto } from '../dto/n8n.dto';
 
-export class N8nService {
-  private readonly logger = new Logger('N8nService');
-  private readonly waMonitor: WAMonitoringService;
-
+export class N8nService extends BaseChatbotService<N8n, N8nSetting> {
   constructor(
     waMonitor: WAMonitoringService,
-    private readonly prismaRepository: PrismaRepository,
+    prismaRepository: PrismaRepository,
+    configService: ConfigService,
   ) {
-    this.waMonitor = waMonitor;
+    super(waMonitor, prismaRepository, 'N8nService', configService);
+  }
+
+  /**
+   * Return the bot type for N8n
+   */
+  protected getBotType(): string {
+    return 'n8n';
   }
 
   /**
@@ -122,40 +129,10 @@ export class N8nService {
   }
 
   public async createNewSession(instance: InstanceDto, data: any) {
-    try {
-      const session = await this.prismaRepository.integrationSession.create({
-        data: {
-          remoteJid: data.remoteJid,
-          pushName: data.pushName,
-          sessionId: data.remoteJid,
-          status: 'opened',
-          awaitUser: false,
-          botId: data.botId,
-          instanceId: instance.instanceId,
-          type: 'n8n',
-        },
-      });
-      return { session };
-    } catch (error) {
-      this.logger.error(error);
-      return;
-    }
+    return super.createNewSession(instance, data, 'n8n');
   }
 
-  private isImageMessage(content: string) {
-    return content.includes('imageMessage');
-  }
-
-  private isJSON(str: string): boolean {
-    try {
-      JSON.parse(str);
-      return true;
-    } catch (e) {
-      return false;
-    }
-  }
-
-  private async sendMessageToBot(
+  protected async sendMessageToBot(
     instance: any,
     session: IntegrationSession,
     settings: N8nSetting,
@@ -163,6 +140,7 @@ export class N8nService {
     remoteJid: string,
     pushName: string,
     content: string,
+    msg?: any,
   ) {
     try {
       const endpoint: string = n8n.webhookUrl;
@@ -170,6 +148,24 @@ export class N8nService {
         chatInput: content,
         sessionId: session.sessionId,
       };
+
+      // Handle audio messages
+      if (this.isAudioMessage(content) && msg) {
+        try {
+          this.logger.debug(`[N8n] Downloading audio for Whisper transcription`);
+          const mediaBuffer = await downloadMediaMessage({ key: msg.key, message: msg.message }, 'buffer', {});
+          const transcribedText = await this.speechToText(mediaBuffer);
+          if (transcribedText) {
+            payload.chatInput = transcribedText;
+          } else {
+            payload.chatInput = '[Audio message could not be transcribed]';
+          }
+        } catch (err) {
+          this.logger.error(`[N8n] Failed to transcribe audio: ${err}`);
+          payload.chatInput = '[Audio message could not be transcribed]';
+        }
+      }
+
       const headers: Record<string, string> = {};
       if (n8n.basicAuthUser && n8n.basicAuthPass) {
         const auth = Buffer.from(`${n8n.basicAuthUser}:${n8n.basicAuthPass}`).toString('base64');
@@ -193,45 +189,39 @@ export class N8nService {
     }
   }
 
-  private async sendMessageWhatsApp(instance: any, remoteJid: string, message: string, settings: N8nSetting) {
+  protected async sendMessageWhatsApp(instance: any, remoteJid: string, message: string, settings: N8nSetting) {
     const linkRegex = /(!?)\[(.*?)\]\((.*?)\)/g;
     let textBuffer = '';
     let lastIndex = 0;
     let match: RegExpExecArray | null;
-    const getMediaType = (url: string): string | null => {
-      const extension = url.split('.').pop()?.toLowerCase();
-      const imageExtensions = ['jpg', 'jpeg', 'png', 'gif', 'bmp', 'webp'];
-      const audioExtensions = ['mp3', 'wav', 'aac', 'ogg'];
-      const videoExtensions = ['mp4', 'avi', 'mkv', 'mov'];
-      const documentExtensions = ['pdf', 'doc', 'docx', 'xls', 'xlsx', 'ppt', 'pptx', 'txt'];
-      if (imageExtensions.includes(extension || '')) return 'image';
-      if (audioExtensions.includes(extension || '')) return 'audio';
-      if (videoExtensions.includes(extension || '')) return 'video';
-      if (documentExtensions.includes(extension || '')) return 'document';
-      return null;
-    };
+    
     while ((match = linkRegex.exec(message)) !== null) {
-      const [altText, url] = match;
-      const mediaType = getMediaType(url);
+      const [fullMatch, exclamation, altText, url] = match;
+      const mediaType = this.getMediaType(url);
       const beforeText = message.slice(lastIndex, match.index);
+      
       if (beforeText) {
         textBuffer += beforeText;
       }
+      
       if (mediaType) {
         const splitMessages = settings.splitMessages ?? false;
         const timePerChar = settings.timePerChar ?? 0;
         const minDelay = 1000;
         const maxDelay = 20000;
+        
         if (textBuffer.trim()) {
           if (splitMessages) {
             const multipleMessages = textBuffer.trim().split('\n\n');
             for (let index = 0; index < multipleMessages.length; index++) {
               const message = multipleMessages[index];
               const delay = Math.min(Math.max(message.length * timePerChar, minDelay), maxDelay);
+              
               if (instance.integration === 'WHATSAPP_BAILEYS') {
                 await instance.client.presenceSubscribe(remoteJid);
                 await instance.client.sendPresenceUpdate('composing', remoteJid);
               }
+              
               await new Promise<void>((resolve) => {
                 setTimeout(async () => {
                   await instance.textMessage(
@@ -245,67 +235,103 @@ export class N8nService {
                   resolve();
                 }, delay);
               });
+              
               if (instance.integration === 'WHATSAPP_BAILEYS') {
                 await instance.client.sendPresenceUpdate('paused', remoteJid);
               }
             }
           } else {
-            await instance.textMessage(
-              {
-                number: remoteJid.split('@')[0],
-                delay: settings?.delayMessage || 1000,
-                text: textBuffer.trim(),
-              },
-              false,
-            );
+            const delay = Math.min(Math.max(textBuffer.length * timePerChar, minDelay), maxDelay);
+            
+            if (instance.integration === 'WHATSAPP_BAILEYS') {
+              await instance.client.presenceSubscribe(remoteJid);
+              await instance.client.sendPresenceUpdate('composing', remoteJid);
+            }
+            
+            await new Promise<void>((resolve) => {
+              setTimeout(async () => {
+                await instance.textMessage(
+                  {
+                    number: remoteJid.split('@')[0],
+                    delay: settings?.delayMessage || 1000,
+                    text: textBuffer,
+                  },
+                  false,
+                );
+                resolve();
+              }, delay);
+            });
+            
+            if (instance.integration === 'WHATSAPP_BAILEYS') {
+              await instance.client.sendPresenceUpdate('paused', remoteJid);
+            }
           }
-          textBuffer = '';
         }
-        if (mediaType === 'audio') {
-          await instance.audioWhatsapp({
+        
+        textBuffer = '';
+        
+        if (mediaType === 'image') {
+          await instance.mediaMessage({
             number: remoteJid.split('@')[0],
             delay: settings?.delayMessage || 1000,
-            audio: url,
-            caption: altText,
+            caption: exclamation === '!' ? undefined : altText,
+            mediatype: 'image',
+            media: url,
+          });
+        } else if (mediaType === 'video') {
+          await instance.mediaMessage({
+            number: remoteJid.split('@')[0],
+            delay: settings?.delayMessage || 1000,
+            caption: exclamation === '!' ? undefined : altText,
+            mediatype: 'video',
+            media: url,
+          });
+        } else if (mediaType === 'audio') {
+          await instance.mediaMessage({
+            number: remoteJid.split('@')[0],
+            delay: settings?.delayMessage || 1000,
+            mediatype: 'audio',
+            media: url,
+          });
+        } else if (mediaType === 'document') {
+          await instance.mediaMessage({
+            number: remoteJid.split('@')[0],
+            delay: settings?.delayMessage || 1000,
+            caption: exclamation === '!' ? undefined : altText,
+            mediatype: 'document',
+            media: url,
+            fileName: altText || 'file',
           });
-        } else {
-          await instance.mediaMessage(
-            {
-              number: remoteJid.split('@')[0],
-              delay: settings?.delayMessage || 1000,
-              mediatype: mediaType,
-              media: url,
-              caption: altText,
-            },
-            null,
-            false,
-          );
         }
       } else {
         textBuffer += `[${altText}](${url})`;
       }
-      lastIndex = linkRegex.lastIndex;
+      
+      lastIndex = match.index + fullMatch.length;
     }
-    if (lastIndex < message.length) {
-      const remainingText = message.slice(lastIndex);
-      if (remainingText.trim()) {
-        textBuffer += remainingText;
-      }
+    
+    const remainingText = message.slice(lastIndex);
+    if (remainingText) {
+      textBuffer += remainingText;
     }
-    const splitMessages = settings.splitMessages ?? false;
-    const timePerChar = settings.timePerChar ?? 0;
-    const minDelay = 1000;
-    const maxDelay = 20000;
+    
     if (textBuffer.trim()) {
+      const splitMessages = settings.splitMessages ?? false;
+      const timePerChar = settings.timePerChar ?? 0;
+      const minDelay = 1000;
+      const maxDelay = 20000;
+      
       if (splitMessages) {
         const multipleMessages = textBuffer.trim().split('\n\n');
         for (let index = 0; index < multipleMessages.length; index++) {
           const message = multipleMessages[index];
           const delay = Math.min(Math.max(message.length * timePerChar, minDelay), maxDelay);
+          
           if (instance.integration === 'WHATSAPP_BAILEYS') {
             await instance.client.presenceSubscribe(remoteJid);
             await instance.client.sendPresenceUpdate('composing', remoteJid);
           }
+          
           await new Promise<void>((resolve) => {
             setTimeout(async () => {
               await instance.textMessage(
@@ -319,25 +345,41 @@ export class N8nService {
               resolve();
             }, delay);
           });
+          
           if (instance.integration === 'WHATSAPP_BAILEYS') {
             await instance.client.sendPresenceUpdate('paused', remoteJid);
           }
         }
       } else {
-        await instance.textMessage(
-          {
-            number: remoteJid.split('@')[0],
-            delay: settings?.delayMessage || 1000,
-            text: textBuffer.trim(),
-          },
-          false,
-        );
+        const delay = Math.min(Math.max(textBuffer.length * timePerChar, minDelay), maxDelay);
+        
+        if (instance.integration === 'WHATSAPP_BAILEYS') {
+          await instance.client.presenceSubscribe(remoteJid);
+          await instance.client.sendPresenceUpdate('composing', remoteJid);
+        }
+        
+        await new Promise<void>((resolve) => {
+          setTimeout(async () => {
+            await instance.textMessage(
+              {
+                number: remoteJid.split('@')[0],
+                delay: settings?.delayMessage || 1000,
+                text: textBuffer,
+              },
+              false,
+            );
+            resolve();
+          }, delay);
+        });
+        
+        if (instance.integration === 'WHATSAPP_BAILEYS') {
+          await instance.client.sendPresenceUpdate('paused', remoteJid);
+        }
       }
     }
-    sendTelemetry('/message/sendText');
   }
 
-  private async initNewSession(
+  protected async initNewSession(
     instance: any,
     remoteJid: string,
     n8n: N8n,
@@ -345,88 +387,97 @@ export class N8nService {
     session: IntegrationSession,
     content: string,
     pushName?: string,
+    msg?: any,
   ) {
-    const data = await this.createNewSession(instance, {
-      remoteJid,
-      pushName,
-      botId: n8n.id,
-    });
-    if (data.session) {
-      session = data.session;
-    }
-    await this.sendMessageToBot(instance, session, settings, n8n, remoteJid, pushName, content);
-    return;
-  }
-
-  public async processN8n(
-    instance: any,
-    remoteJid: string,
-    n8n: N8n,
-    session: IntegrationSession,
-    settings: N8nSetting,
-    content: string,
-    pushName?: string,
-  ) {
-    if (session && session.status !== 'opened') {
+    try {
+      await this.sendMessageToBot(instance, session, settings, n8n, remoteJid, pushName || '', content, msg);
+    } catch (error) {
+      this.logger.error(error);
       return;
     }
-    if (session && settings.expire && settings.expire > 0) {
-      const now = Date.now();
-      const sessionUpdatedAt = new Date(session.updatedAt).getTime();
-      const diff = now - sessionUpdatedAt;
-      const diffInMinutes = Math.floor(diff / 1000 / 60);
-      if (diffInMinutes > settings.expire) {
-        if (settings.keepOpen) {
+  }
+
+  public async process(
+    instance: any,
+    remoteJid: string,
+    n8n: N8n,
+    session: IntegrationSession,
+    settings: N8nSetting,
+    content: string,
+    pushName?: string,
+    msg?: any,
+  ) {
+    try {
+      // Handle keyword finish
+      if (settings?.keywordFinish?.includes(content.toLowerCase())) {
+        if (settings?.keepOpen) {
           await this.prismaRepository.integrationSession.update({
-            where: { id: session.id },
-            data: { status: 'closed' },
+            where: {
+              id: session.id,
+            },
+            data: {
+              status: 'closed',
+            },
           });
         } else {
-          await this.prismaRepository.integrationSession.deleteMany({
-            where: { botId: n8n.id, remoteJid: remoteJid },
+          await this.prismaRepository.integrationSession.delete({
+            where: {
+              id: session.id,
+            },
           });
         }
-        await this.initNewSession(instance, remoteJid, n8n, settings, session, content, pushName);
+
         return;
       }
-    }
-    if (!session) {
-      await this.initNewSession(instance, remoteJid, n8n, settings, session, content, pushName);
-      return;
-    }
-    await this.prismaRepository.integrationSession.update({
-      where: { id: session.id },
-      data: { status: 'opened', awaitUser: false },
-    });
-    if (!content) {
-      if (settings.unknownMessage) {
-        this.waMonitor.waInstances[instance.instanceName].textMessage(
-          {
-            number: remoteJid.split('@')[0],
-            delay: settings.delayMessage || 1000,
-            text: settings.unknownMessage,
-          },
-          false,
+
+      // If session is new or doesn't exist
+      if (!session) {
+        const data = {
+          remoteJid,
+          pushName,
+          botId: n8n.id,
+        };
+
+        const createSession = await this.createNewSession(
+          { instanceName: instance.instanceName, instanceId: instance.instanceId },
+          data,
         );
 
-        sendTelemetry('/message/sendText');
+        await this.initNewSession(
+          instance,
+          remoteJid,
+          n8n,
+          settings,
+          createSession.session,
+          content,
+          pushName,
+          msg,
+        );
+
+        await sendTelemetry('/n8n/session/start');
+        return;
       }
-      return;
-    }
-    if (settings.keywordFinish && content.toLowerCase() === settings.keywordFinish.toLowerCase()) {
-      if (settings.keepOpen) {
+
+      // If session exists but is paused
+      if (session.status === 'paused') {
         await this.prismaRepository.integrationSession.update({
-          where: { id: session.id },
-          data: { status: 'closed' },
-        });
-      } else {
-        await this.prismaRepository.integrationSession.deleteMany({
-          where: { botId: n8n.id, remoteJid: remoteJid },
+          where: {
+            id: session.id,
+          },
+          data: {
+            status: 'opened',
+            awaitUser: true,
+          },
         });
+
+        return;
       }
+
+      // Regular message for ongoing session
+      await this.sendMessageToBot(instance, session, settings, n8n, remoteJid, pushName || '', content, msg);
+    } catch (error) {
+      this.logger.error(error);
       return;
     }
-    await this.sendMessageToBot(instance, session, settings, n8n, remoteJid, pushName, content);
-    return;
   }
 }

src/api/server.module.ts

@@ -131,7 +131,7 @@ export const evolutionBotController = new EvolutionBotController(evolutionBotSer
 const flowiseService = new FlowiseService(waMonitor, configService, prismaRepository);
 export const flowiseController = new FlowiseController(flowiseService, prismaRepository, waMonitor);
 
-const n8nService = new N8nService(waMonitor, prismaRepository);
+const n8nService = new N8nService(waMonitor, prismaRepository, configService);
 export const n8nController = new N8nController(n8nService, prismaRepository, waMonitor);
 
 const evoaiService = new EvoaiService(waMonitor, prismaRepository, configService);