"""
┌──────────────────────────────────────────────────────────────────────────────┐
│ @author: Davidson Gomes                                                      │
│ @file: security.py                                                           │
│ Developed by: Davidson Gomes                                                 │
│ Creation date: May 13, 2025                                                  │
│ Contact: contato@evolution-api.com                                           │
├──────────────────────────────────────────────────────────────────────────────┤
│ @copyright © Evolution API 2025. All rights reserved.                        │
│ Licensed under the Apache License, Version 2.0                               │
│                                                                              │
│ You may not use this file except in compliance with the License.             │
│ You may obtain a copy of the License at                                      │
│                                                                              │
│    http://www.apache.org/licenses/LICENSE-2.0                                │
│                                                                              │
│ Unless required by applicable law or agreed to in writing, software          │
│ distributed under the License is distributed on an "AS IS" BASIS,            │
│ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.     │
│ See the License for the specific language governing permissions and          │
│ limitations under the License.                                               │
├──────────────────────────────────────────────────────────────────────────────┤
│ @important                                                                   │
│ For any future changes to the code in this file, it is recommended to        │
│ include, together with the modification, the information of the developer    │
│ who changed it and the date of modification.                                 │
└──────────────────────────────────────────────────────────────────────────────┘
"""

from passlib.context import CryptContext
from datetime import datetime, timedelta
import secrets
import string
from jose import jwt
from src.config.settings import settings
import logging
import bcrypt
from dataclasses import dataclass

logger = logging.getLogger(__name__)

# Fix bcrypt error with passlib
if not hasattr(bcrypt, "__about__"):

    @dataclass
    class BcryptAbout:
        __version__: str = getattr(bcrypt, "__version__")

    setattr(bcrypt, "__about__", BcryptAbout())

# Context for password hashing using bcrypt
pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")


def get_password_hash(password: str) -> str:
    """Creates a password hash"""
    return pwd_context.hash(password)


def verify_password(plain_password: str, hashed_password: str) -> bool:
    """Verifies if the provided password matches the stored hash"""
    return pwd_context.verify(plain_password, hashed_password)


def create_jwt_token(data: dict, expires_delta: timedelta = None) -> str:
    """Creates a JWT token"""
    to_encode = data.copy()
    if expires_delta:
        expire = datetime.utcnow() + expires_delta
    else:
        expire = datetime.utcnow() + timedelta(minutes=settings.JWT_EXPIRATION_TIME)
    to_encode.update({"exp": expire})
    encoded_jwt = jwt.encode(
        to_encode, settings.JWT_SECRET_KEY, algorithm=settings.JWT_ALGORITHM
    )
    return encoded_jwt


def generate_token(length: int = 32) -> str:
    """Generates a secure token for email verification or password reset"""
    alphabet = string.ascii_letters + string.digits
    token = "".join(secrets.choice(alphabet) for _ in range(length))
    return token