110 lines
4.7 KiB
TypeScript
110 lines
4.7 KiB
TypeScript
/*
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┌──────────────────────────────────────────────────────────────────────────────┐
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│ @author: Davidson Gomes │
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│ @file: /lib/file-utils.ts │
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│ Developed by: Davidson Gomes │
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│ Creation date: August 24, 2025 │
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│ Contact: contato@evolution-api.com │
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├──────────────────────────────────────────────────────────────────────────────┤
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│ @copyright © Evolution API 2025. All rights reserved. │
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│ Licensed under the Apache License, Version 2.0 │
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│ │
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│ You may not use this file except in compliance with the License. │
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│ You may obtain a copy of the License at │
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│ │
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│ http://www.apache.org/licenses/LICENSE-2.0 │
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│ │
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│ Unless required by applicable law or agreed to in writing, software │
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│ distributed under the License is distributed on an "AS IS" BASIS, │
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│ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. │
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│ See the License for the specific language governing permissions and │
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│ limitations under the License. │
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├──────────────────────────────────────────────────────────────────────────────┤
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│ @important │
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│ For any future changes to the code in this file, it is recommended to │
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│ include, together with the modification, the information of the developer │
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│ who changed it and the date of modification. │
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└──────────────────────────────────────────────────────────────────────────────┘
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*/
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export interface FileData {
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filename: string;
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content_type: string;
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data: string;
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size: number;
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preview_url?: string;
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}
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export function fileToBase64(file: File): Promise<string> {
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return new Promise((resolve, reject) => {
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const reader = new FileReader();
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reader.readAsDataURL(file);
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reader.onload = () => {
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const base64 = reader.result as string;
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const base64Data = base64.split(',')[1];
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resolve(base64Data);
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};
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reader.onerror = error => reject(error);
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});
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}
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export async function fileToFileData(file: File): Promise<FileData> {
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const base64Data = await fileToBase64(file);
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const previewUrl = URL.createObjectURL(file);
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return {
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filename: file.name,
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content_type: file.type,
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data: base64Data,
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size: file.size,
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preview_url: previewUrl
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};
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}
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export function formatFileSize(bytes: number): string {
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if (bytes === 0) {
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return '0 Bytes';
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}
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const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB'];
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const i = Math.floor(Math.log(bytes) / Math.log(1024));
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return parseFloat((bytes / Math.pow(1024, i)).toFixed(2)) + ' ' + sizes[i];
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}
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export function isImageFile(mimeType: string): boolean {
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return mimeType.startsWith('image/');
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}
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export function isPdfFile(mimeType: string): boolean {
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return mimeType === 'application/pdf';
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}
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export function getFileIcon(mimeType: string): string {
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if (isImageFile(mimeType)) {
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return 'image';
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}
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if (isPdfFile(mimeType)) {
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return 'file-text';
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}
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if (mimeType.includes('word')) {
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return 'file-text';
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}
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if (mimeType.includes('excel') || mimeType.includes('spreadsheet')) {
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return 'file-spreadsheet';
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}
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if (mimeType.includes('presentation') || mimeType.includes('powerpoint')) {
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return 'file-presentation';
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}
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if (mimeType.includes('text/')) {
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return 'file-text';
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}
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if (mimeType.includes('audio/')) {
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return 'file-audio';
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}
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if (mimeType.includes('video/')) {
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return 'file-video';
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}
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return 'file';
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}
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