from floatapp import app, login_manager
from flask import request, abort
from flask_login import current_user, UserMixin
from functools import wraps


class User(UserMixin):
    def __init__(self, id, admin=False):
        self.admin = admin
        self.id = id

    def __unicode__(self):
        return u"{}".format(self.id)

    def __str__(self):
        return str(self.id)

    @property
    def is_admin(self):
        return self.admin

admin_user = User("admin", True)


@login_manager.user_loader
def load_user(id):
    if id == "admin":
        return admin_user
    return User(id)


@login_manager.unauthorized_handler
def unauthorized():
    return abort(403)


def admin_required(fn):
    @wraps(fn)
    def decorated_view(*args, **kwargs):
        if (query_is_admin_user(request.args) or
                (current_user.is_authenticated and current_user.admin)):
            return fn(*args, **kwargs)
        return app.login_manager.unauthorized()
    return decorated_view


def query_is_admin_user(query):
    username = query.get("username", None)
    password = query.get("password", None)
    return (username == app.config["ADMIN_USERNAME"] and
            password == app.config["ADMIN_PASSWORD"])