# -*- coding: utf-8 -*-
from unittest import mock

import pytest

from pytube import YouTube
from pytube.exceptions import VideoUnavailable


@mock.patch("pytube.__main__.YouTube")
def test_prefetch_deferred(youtube):
    instance = youtube.return_value
    instance.prefetch_descramble.return_value = None
    YouTube("https://www.youtube.com/watch?v=9bZkp7q19f0", True)
    assert not instance.prefetch_descramble.called


@mock.patch("urllib.request.install_opener")
def test_install_proxy(opener):
    proxies = {"http": "http://www.example.com:3128/"}
    YouTube(
        "https://www.youtube.com/watch?v=9bZkp7q19f0",
        defer_prefetch_init=True,
        proxies=proxies,
    )
    opener.assert_called()


@mock.patch("pytube.request.get")
def test_video_unavailable(get):
    get.return_value = None
    youtube = YouTube(
        "https://www.youtube.com/watch?v=9bZkp7q19f0", defer_prefetch_init=True
    )
    with pytest.raises(VideoUnavailable):
        youtube.prefetch()


def test_video_keywords(cipher_signature):
    expected = [
        'Rewind', 'Rewind 2019',
        'youtube rewind 2019', '#YouTubeRewind',
        'MrBeast', 'PewDiePie', 'James Charles',
        'Shane Dawson', 'CaseyNeistat', 'RiceGum',
        'Simone Giertz', 'JennaMarbles', 'Lilly Singh',
        'emma chamberlain', 'The Try Guys', 'Fortnite',
        'Minecraft', 'Roblox', 'Marshmello',
        'Garena Free Fire', 'GTA V', 'Lachlan',
        'Anaysa', 'jeffreestar', 'Noah Schnapp',
        'Jennelle Eliana', 'T-Series', 'Azzyland',
        'LazarBeam', 'Dude Perfect', 'David Dobrik',
        'KSI', 'NikkieTutorials', 'Kurzgesagt',
        'Jelly', 'Ariana Grande', 'Billie Eilish',
        'BLACKPINK', 'Year in Review'
    ]
    assert cipher_signature.keywords == expected