from jose import jwt, JWTError
from passlib.context import CryptContext
from datetime import datetime, timedelta
import os
from pathlib import Path
from dotenv import load_dotenv

env_path = Path(__file__).parent.parent / ".env"
load_dotenv(dotenv_path=env_path)

SECRET_KEY = os.getenv("SECRET_KEY")
ALGORITHM = "HS256"
ACCESS_TOKEN_EXPIRE_MINUTES = 1440  # 24 часа

pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")

def verify_password(plain_password: str, hashed_password: str) -> bool:
    return pwd_context.verify(plain_password, hashed_password)

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

def create_access_token(data: dict) -> str:
    to_encode = data.copy()
    expire = datetime.utcnow() + timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES)
    to_encode.update({"exp": expire})
    return jwt.encode(to_encode, SECRET_KEY, algorithm=ALGORITHM)

def decode_token(token: str):
    try:
        return jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
    except JWTError:
        return None