import datetime
import os
import sys
sys.path.append(os.path.dirname(os.path.dirname(__file__)))
import jwt
from fastapi import FastAPI,APIRouter, HTTPException, Depends, Request,Header
from fastapi import Depends, FastAPI, HTTPException, status
from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
from pydantic import BaseModel
from fastapi.responses import JSONResponse
from config import *
from douyin.access_token import get_access_token
from douyin.user_info import get_user_info
from db.user import UserOAuthRepository,UserInfoRepository,UserOAuthToken
from api.jwt import verify_jwt_token,get_uer_oauth_and_verify

login_router = APIRouter()  

# code=676a1101ea02bc5dTaUVtKg8c5enYaGqB4dT  只能被使用一次，用完失效
# scopes=user_info,trial.whitelist 用户授权的范围
class ScanCode(BaseModel):
    code: str
    scopes: str

class User(BaseModel):
    nickname: str
    avatar: str

        
# 登录端点
@login_router.post("/login")
async def login(data: ScanCode):
    logger.info(data)
    data = await get_access_token(data.code)
    if data.get("error_code") != 0:
        raise HTTPException(status_code=400, detail=data)
    db_manager = UserOAuthRepository()
    db_manager.add_or_update(data)

    # 计算过期时间戳（基于北京时间）  
    expires_in = data.get("expires_in", 1296000)
    # expires_in = 15
    expiration_time_utc = datetime.datetime.utcnow() + datetime.timedelta(seconds=expires_in)  
    beijing_timezone_delta = datetime.timedelta(hours=8)  # 北京时间是UTC+8  
    expiration_time_beijing = expiration_time_utc + beijing_timezone_delta  
    exp = int(expiration_time_beijing.timestamp())  
    
    # 生成并返回 token，包含过期时间  
    payload = {  
        "sub": data["open_id"],
        "exp": exp  # 添加过期时间戳（北京时间）到 payload  
    }  
    account_token = jwt.encode(payload, SECRET_KEY, algorithm="HS256")  
    logger.info(f"login success, expires_time:{datetime.datetime.fromtimestamp(exp).strftime('%Y-%m-%d %H:%M:%S') }, token:{account_token}")
    return {"token": account_token}

@login_router.get("/user_info")
async def user_info(db_user_oauth: UserOAuthToken = Depends(get_uer_oauth_and_verify)):
    info = await get_user_info(db_user_oauth.open_id, db_user_oauth.access_token)
    if info.get("error_code") != 0:
        raise HTTPException(status_code=400, detail=info)  
    return info

# 受保护资源示例
@login_router.get("/account")
async def read_account(open_id: str = Depends(verify_jwt_token)): 
    UserOAuthRepository().display_all_records()
    return {"message": "Account information", "open_id": open_id}
    # 在这里返回当前用户的信息
    return {"nickname": current_user.username, "avatar": "https://p26.douyinpic.com/aweme/100x100/aweme-avatar/tos-cn-i-0813_66c4e34ae8834399bbf967c3d3c919db.jpeg?from=4010531038"}

@login_router.get("/token")
async def read_account(open_id: str = Depends(verify_jwt_token)): 
    pass

# 启动应用
def main():
    pass

if __name__ == "__main__":
    main()