from typing import List
from fastapi import APIRouter, Depends, HTTPException, status
from services.jwt import revoke_access
from services.password import get_password_hash, verify_password
from services.auth import get_current_clientId, get_current_user, get_current_user_optional, jwt_refresh_required
from database.auth.crud import change_user_uuid, check_unique_username, create_user_db, delete_user_db, update_password_db, update_user_db
from services.auth import authenticate_user
from database.auth.models import PasswordSet, User, UserEdit, UserRead, UserRegister
from pydantic import BaseModel
from fastapi_jwt_auth import AuthJWT
from sqlmodel import Session,select
from database.db import get_session
router = APIRouter(tags=['Authentification'])


class Token(BaseModel):
    access_token: str
    token_type: str
    refresh_token: str


@router.post("/login", response_model=Token)
def login_for_access_token(user: User = Depends(authenticate_user)):
    Authorize = AuthJWT()
    access_token = Authorize.create_access_token(
        subject=str(user.clientId), fresh=True)
    refresh_token = Authorize.create_refresh_token(subject=str(user.clientId))
    return {"access_token": access_token, "refresh_token": refresh_token, "token_type": "bearer"}

@router.post('/register', response_model=Token)
def register(user: UserRegister = Depends(UserRegister.as_form), Authorize: AuthJWT = Depends(), db: Session = Depends(get_session)):
    username = check_unique_username(user.username, db)
    if not username:
        raise HTTPException(status_code = status.HTTP_400_BAD_REQUEST,detail={'username_error': "Nom d'utilisateur indisponible"})
    user = create_user_db(username, get_password_hash(user.password), db)
    access_token = Authorize.create_access_token(
        subject=str(user.clientId))
    refresh_token = Authorize.create_refresh_token(subject=str(user.clientId))
    return {"access_token": access_token, "refresh_token": refresh_token, "token_type": "bearer"}

@router.get('/users', response_model=List[UserRead])
def get_users(db: Session = Depends(get_session)):
    users = db.exec(select(User)).all()
    return users

@router.put('/user' , response_model=UserRead,)
def update_user(user: UserEdit = Depends(UserEdit.as_form), clientId: str = Depends(get_current_clientId), db: Session = Depends(get_session)):
    user_obj = update_user_db(clientId, user, db)
    return user_obj


@router.put('/user/password')
def update_password(password: PasswordSet = Depends(PasswordSet.as_form),  user: User = Depends(get_current_user),  db: Session = Depends(get_session), Authorize: AuthJWT = Depends()):
    isValid = verify_password(password.old_password, user.hashed_password)
    if not isValid:
        raise HTTPException(status_code=401, detail={'old_password_error': 'Mot de passe invalide'})
    
    user_obj = update_password_db(user.id, password.password, db)
    user_obj = change_user_uuid(user.id, db)
    
    access_token = Authorize.create_access_token(
        subject=str(user_obj))
    refresh_token = Authorize.create_refresh_token(subject=str(user_obj))
    return {"access_token": access_token, "refresh_token": refresh_token, "token_type": "bearer"}
    

@router.post('/logout')
def logout(user: User = Depends(get_current_user), db: Session = Depends(get_session),):
    change_user_uuid(user.id, db)
    return {'ok': True}


@router.delete('/user')
def delete_user(user: User = Depends(authenticate_user), db: Session = Depends(get_session)):
    delete_user_db(user.id, db)
    return {'ok': True}


@router.post('/check-access',)
def check_token(user: User = Depends(get_current_user_optional)):
    return {'username': user.username} if user != None else False

@router.post('/refresh')
def refresh(Authorize: AuthJWT = Depends(jwt_refresh_required)):
    current_user = Authorize.get_jwt_subject()
    new_access_token = Authorize.create_access_token(subject=current_user)
    return {"access_token": new_access_token}