#!/usr/bin/env python
# coding: utf-8
#
# This file is part of Supysonic.
# Supysonic is a Python implementation of the Subsonic server API.
#
# Copyright (C) 2017-2018 Alban 'spl0k' Féron
#                    2017 Óscar García Amor
#
# Distributed under terms of the GNU AGPLv3 license.

from supysonic import db
from supysonic.managers.user import UserManager

import io
import unittest
import uuid

from pony.orm import db_session, commit
from pony.orm import ObjectNotFound


class UserManagerTestCase(unittest.TestCase):
    def setUp(self):
        # Create an empty sqlite database in memory
        db.init_database("sqlite:")

    def tearDown(self):
        db.release_database()

    @db_session
    def create_data(self):
        # Create some users
        self.assertIsInstance(
            UserManager.add("alice", "ALICE", "test@example.com", True), db.User
        )
        self.assertIsInstance(
            UserManager.add("bob", "BOB", "bob@example.com", False), db.User
        )
        self.assertIsInstance(
            UserManager.add("charlie", "CHARLIE", "charlie@example.com", False), db.User
        )

        folder = db.Folder(name="Root", path="tests/assets", root=True)
        artist = db.Artist(name="Artist")
        album = db.Album(name="Album", artist=artist)
        track = db.Track(
            title="Track",
            disc=1,
            number=1,
            duration=1,
            artist=artist,
            album=album,
            path="tests/assets/empty",
            folder=folder,
            root_folder=folder,
            bitrate=320,
            last_modification=0,
        )

        playlist = db.Playlist(name="Playlist", user=db.User.get(name="alice"))
        playlist.add(track)

    def test_encrypt_password(self):
        func = UserManager._UserManager__encrypt_password
        self.assertEqual(
            func("password", "salt"),
            ("59b3e8d637cf97edbe2384cf59cb7453dfe30789", "salt"),
        )
        self.assertEqual(
            func("pass-word", "pepper"),
            ("d68c95a91ed7773aa57c7c044d2309a5bf1da2e7", "pepper"),
        )
        self.assertEqual(
            func(u"éèàïô", "ABC+"), ("b639ba5217b89c906019d89d5816b407d8730898", "ABC+")
        )

    @db_session
    def test_get_user(self):
        self.create_data()

        # Get existing users
        for name in ["alice", "bob", "charlie"]:
            user = db.User.get(name=name)
            self.assertEqual(UserManager.get(user.id), user)

        # Get with invalid UUID
        self.assertRaises(ValueError, UserManager.get, "invalid-uuid")
        self.assertRaises(ValueError, UserManager.get, 0xFEE1BAD)

        # Non-existent user
        self.assertRaises(ObjectNotFound, UserManager.get, uuid.uuid4())

    @db_session
    def test_add_user(self):
        self.create_data()
        self.assertEqual(db.User.select().count(), 3)

        # Create duplicate
        self.assertRaises(
            ValueError, UserManager.add, "alice", "Alic3", "alice@example.com", True
        )

    @db_session
    def test_delete_user(self):
        self.create_data()

        # Delete invalid UUID
        self.assertRaises(ValueError, UserManager.delete, "invalid-uuid")
        self.assertRaises(ValueError, UserManager.delete, 0xFEE1B4D)
        self.assertEqual(db.User.select().count(), 3)

        # Delete non-existent user
        self.assertRaises(ObjectNotFound, UserManager.delete, uuid.uuid4())
        self.assertEqual(db.User.select().count(), 3)

        # Delete existing users
        for name in ["alice", "bob", "charlie"]:
            user = db.User.get(name=name)
            UserManager.delete(user.id)
            self.assertRaises(ObjectNotFound, db.User.__getitem__, user.id)
        commit()
        self.assertEqual(db.User.select().count(), 0)

    @db_session
    def test_delete_by_name(self):
        self.create_data()

        # Delete existing users
        for name in ["alice", "bob", "charlie"]:
            UserManager.delete_by_name(name)
            self.assertFalse(db.User.exists(name=name))

        # Delete non-existent user
        self.assertRaises(ObjectNotFound, UserManager.delete_by_name, "null")

    @db_session
    def test_try_auth(self):
        self.create_data()

        # Test authentication
        for name in ["alice", "bob", "charlie"]:
            user = db.User.get(name=name)
            authed = UserManager.try_auth(name, name.upper())
            self.assertEqual(authed, user)

        # Wrong password
        self.assertIsNone(UserManager.try_auth("alice", "bad"))
        self.assertIsNone(UserManager.try_auth("alice", "alice"))

        # Non-existent user
        self.assertIsNone(UserManager.try_auth("null", "null"))

    @db_session
    def test_change_password(self):
        self.create_data()

        # With existing users
        for name in ["alice", "bob", "charlie"]:
            user = db.User.get(name=name)
            # Good password
            UserManager.change_password(user.id, name.upper(), "newpass")
            self.assertEqual(UserManager.try_auth(name, "newpass"), user)
            # Old password
            self.assertEqual(UserManager.try_auth(name, name.upper()), None)
            # Wrong password
            self.assertRaises(
                ValueError, UserManager.change_password, user.id, "badpass", "newpass"
            )

        # Ensure we still got the same number of users
        self.assertEqual(db.User.select().count(), 3)

        # With invalid UUID
        self.assertRaises(
            ValueError,
            UserManager.change_password,
            "invalid-uuid",
            "oldpass",
            "newpass",
        )

        # Non-existent user
        self.assertRaises(
            ObjectNotFound,
            UserManager.change_password,
            uuid.uuid4(),
            "oldpass",
            "newpass",
        )

    @db_session
    def test_change_password2(self):
        self.create_data()

        # With existing users
        for name in ["alice", "bob", "charlie"]:
            UserManager.change_password2(name, "newpass")
            user = db.User.get(name=name)
            self.assertEqual(UserManager.try_auth(name, "newpass"), user)
            self.assertEqual(UserManager.try_auth(name, name.upper()), None)

        # Non-existent user
        self.assertRaises(
            ObjectNotFound, UserManager.change_password2, "null", "newpass"
        )


if __name__ == "__main__":
    unittest.main()