service_man/api/application/usecase/auth/auth_user.py

from api.application.contracts.auth.auth_request import LoginRequest
from api.application.contracts.auth.auth_response import AuthenticationResponse
from api.application.protocols.password_hasher import PasswordHasher
from api.domain.user.error import UserInvalidCredentialsError
from api.domain.user.repository import UserRepository


class LoginUser:
    def __init__(
        self,
        user_repository: UserRepository,
        password_hasher: PasswordHasher,
    ) -> None:
        self.user_repository = user_repository
        self.hasher = password_hasher

    async def __call__(self, request: LoginRequest) -> AuthenticationResponse:
        print("__call__ request", request)
        user = await self.user_repository.get_user(filter={"email": request.email})
        print("__call__ user from repo", user)
        error = UserInvalidCredentialsError("Email or password is incorrect")
        if user is None:
            print("user is none in LoginUser __call__")
            raise error

        if not self.hasher.verify_password(request.password, user.hashed_password):
            print("wrong pass in LoginUser __call__")
            raise error

        return AuthenticationResponse(
            id=user.id.value,
            name=user.name.value,
            email=user.email.value,
        )