from typing import List

from jose import jwt, JWTError
from datetime import datetime, timedelta
from fastapi import Header, Request, HTTPException

from Crud import AppCrud
from Schemas import AppSchemas
from Schemas.UserSchemas import TokenData

SECRET_KEY = "MADASDZXC255f"
ALGORITHM = "HS256"


def create_token(data: dict, secret_key=SECRET_KEY, algorithm=ALGORITHM, expires_delta: timedelta = timedelta(days=3)):
    # 设置加密数据
    to_encode_body = dict()
    to_encode_body.update(data.copy())
    # 设置过期时间
    if expires_delta:
        expire = datetime.utcnow() + expires_delta
        to_encode_body.update({"exp": expire})
    # Token编码
    encoded_jwt = jwt.encode(to_encode_body, secret_key, algorithm=algorithm)
    return encoded_jwt


def decode_token(token: str, secret_key: str, algorithms: List[str] = ['HS256']):
    payload = jwt.decode(token, secret_key, algorithms=algorithms)
    return payload


class Token:
    SECRET_KEY = SECRET_KEY
    ALGORITHM = ALGORITHM

    @classmethod
    def create_token(cls, data: dict, expires_delta: timedelta = timedelta(days=3)):
        return create_token(data, cls.SECRET_KEY, cls.ALGORITHM, expires_delta)

    @classmethod
    def decode_token(cls, token: str):
        payload = decode_token(token, cls.SECRET_KEY, algorithms=[cls.ALGORITHM])
        return payload


def token_data_depend(Authorization: str = Header(None))->TokenData:
    try:
        print('Authorization',Authorization)
        _, jwt_token = Authorization.split(" ")
        payload = Token.decode_token(jwt_token)
        print(payload)
        token_data = TokenData(**payload)
        return token_data
    except Exception as e:
        print(e)
        raise HTTPException(status_code=403, detail="无权限的操作")


# 管理员token验证
def admin_auth_token_depend(Authorization: str = Header(None)) -> TokenData:
    try:
        _, token = Authorization.split(" ")
        token_data: TokenData = token_data_depend(Authorization)
    except Exception as e:
        print(e)
        raise HTTPException(status_code=403, detail="非管理员,无权限的操作")
    if token_data.role != 'admin':
        print(token_data)
        raise HTTPException(status_code=403, detail="非管理员,无权限的操作")
    return token_data


# 应用服务对用户模块的请求验证