"""Run against the fake Spotify Web API in fake_spotify.py:

    python3 -m unittest discover -s tests -t .
"""

import sys
import unittest
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parent.parent))

from spotify import SpotifyClient, SpotifyDeviceUnavailable, SpotifyError   # noqa: E402
from tests.fake_spotify import FakeSpotify         # noqa: E402


class SpotifyTest(unittest.TestCase):
    def setUp(self):
        self.fake = FakeSpotify()
        self.addCleanup(self.fake.stop)
        self.client = SpotifyClient(
            "client-id", "client-secret", "refresh-token",
            accounts_url=self.fake.base_url, api_url=self.fake.base_url,
        )

    def test_devices_lists_what_spotify_reports(self):
        names = [d["name"] for d in self.client.devices()]
        self.assertEqual(names, ["Lego Room", "Home Cinema"])
        self.assertEqual(self.fake.tokens_issued, 1)   # one refresh for the whole call

    def test_resume_transfers_playback_to_the_matched_device(self):
        device = self.client.resume("Lego Room")
        self.assertEqual(device["id"], "dev-1")
        self.assertEqual(self.fake.transfers, [{"device_ids": ["dev-1"], "play": True}])

    def test_resume_raises_when_no_device_has_that_name(self):
        with self.assertRaises(SpotifyDeviceUnavailable):
            self.client.resume("Kitchen")
        self.assertEqual(self.fake.transfers, [])

    def test_an_invisible_device_reports_what_it_looked_for(self):
        # A room another Spotify account is signed in to is simply absent
        # here, and app.py needs the name back to go and ask who has it.
        with self.assertRaises(SpotifyDeviceUnavailable) as caught:
            self.client.resume("Living Room")
        self.assertEqual(caught.exception.device_name, "Living Room")

    def test_it_knows_what_its_login_is_allowed_to_do(self):
        # Signing a speaker in needs the "streaming" scope, and finding that
        # out afterwards costs the room -- see app.py's _spotify_take_over.
        self.fake.scope = "user-read-playback-state streaming"
        self.assertTrue(self.client.has_scope("streaming"))
        self.assertFalse(self.client.has_scope("user-modify-playback-state"))

    def test_pause_stops_what_the_account_is_playing(self):
        # What handing a room back starts with: the account keeps its place
        # in the queue, so its own app -- or this panel's button -- can pick
        # the stream up again somewhere else.
        self.fake.player = {"device": {"id": "dev-1", "name": "Lego Room"}, "is_playing": True}
        self.client.pause()
        self.assertEqual(self.fake.pauses, 1)
        self.assertFalse(self.client.playback()["is_playing"])

    def test_seek_asks_for_the_position(self):
        self.client.seek(90000)
        self.assertEqual(self.fake.seeks, [90000])

    def test_playback_reports_the_device_and_whether_it_plays(self):
        self.fake.player = {"device": {"id": "dev-1", "name": "Lego Room"}, "is_playing": True}
        player = self.client.playback()
        self.assertEqual(player["device"]["name"], "Lego Room")
        self.assertTrue(player["is_playing"])

    def test_playback_is_empty_without_a_session(self):
        self.assertEqual(self.client.playback(), {})

    def test_a_rejected_access_token_is_refreshed_and_retried_once(self):
        self.client.devices()                       # get a real token first
        self.assertEqual(self.fake.tokens_issued, 1)
        self.client._access_token = "stale-but-not-yet-expired"
        # _expires_at is untouched, so only the 401 -- not the pre-call
        # expiry check -- can be what forces this to work.
        names = [d["name"] for d in self.client.devices()]
        self.assertEqual(names, ["Lego Room", "Home Cinema"])
        self.assertEqual(self.fake.tokens_issued, 2)

    def test_a_plain_text_refusal_is_quoted_rather_than_flattened(self):
        # The 403 for an account missing from the developer app's User
        # Management is Spotify's only hint that that is what is wrong,
        # and it arrives as prose rather than as a JSON error object.
        self.fake.forbid = "The user is not registered for this application."
        with self.assertRaises(SpotifyError) as caught:
            self.client.devices()
        self.assertIn("not registered for this application", str(caught.exception))

    def test_a_revoked_refresh_token_raises_a_clear_error(self):
        self.fake.reject_refresh = True
        with self.assertRaises(SpotifyError):
            self.client.devices()


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