from flask import current_app
from flask_httpauth import HTTPBasicAuth, HTTPTokenAuth
from werkzeug.exceptions import Forbidden, Unauthorized
from app.models import User


basic_auth = HTTPBasicAuth()
token_auth = HTTPTokenAuth()
auth_error_responses = {
    Unauthorized.code: Unauthorized.description,
    Forbidden.code: Forbidden.description
}

@basic_auth.verify_password
def verify_password(email_or_username, password):
    user = User.query.filter((User.email == email_or_username.lower()) | (User.username == email_or_username)).first()
    if user is not None and user.verify_password(password):
        return user


@basic_auth.error_handler
def basic_auth_error(status):
    error = (Forbidden if status == 403 else Unauthorized)()
    return {
        'code': error.code,
        'message': error.name,
        'description': error.description,
    }, error.code, {'WWW-Authenticate': 'Form'}


@token_auth.verify_token
def verify_token(token):
    return User.verify_access_token(token) if token else None


@token_auth.error_handler
def token_auth_error(status):
    error = (Forbidden if status == 403 else Unauthorized)()
    return {
        'code': error.code,
        'message': error.name,
        'description': error.description,
    }, error.code


@basic_auth.get_user_roles
@token_auth.get_user_roles
def get_user_roles(user):
    return [user.role.name]