from datetime import datetime, timezone

import pytest
from fastapi.testclient import TestClient

from app.core.auth_dependency import require_session
from app.db import get_db
from app.main import app
from app.models.category import Category
from app.models.channel import Channel
from app.models.channel_category import channel_categories
from app.models.video import Video


@pytest.fixture
def client(db_session):
    def _get_db_override():
        yield db_session

    app.dependency_overrides[get_db] = _get_db_override
    app.dependency_overrides[require_session] = lambda: None
    with TestClient(app) as test_client:
        yield test_client
    del app.dependency_overrides[get_db]
    del app.dependency_overrides[require_session]


def test_get_video_by_youtube_id(client, db_session):
    channel = Channel(youtube_channel_id="chanA", title="Channel A", subscribed=True)
    db_session.add(channel)
    db_session.commit()

    category = Category(name="Linux", slug="linux", sort_order=0)
    db_session.add(category)
    db_session.commit()
    db_session.execute(channel_categories.insert().values(channel_id=channel.id, category_id=category.id))
    db_session.commit()

    video = Video(
        youtube_video_id="vid1",
        channel_id=channel.id,
        title="Video One",
        description="desc",
        published_at=datetime(2026, 9, 10, tzinfo=timezone.utc),
        duration_seconds=125,
        youtube_url="https://www.youtube.com/watch?v=vid1",
    )
    db_session.add(video)
    db_session.commit()

    resp = client.get("/api/videos/vid1")
    assert resp.status_code == 200
    body = resp.json()
    assert body["youtube_video_id"] == "vid1"
    assert body["channel"]["id"] == channel.id
    assert body["categories"] == [{"id": category.id, "name": "Linux"}]
    assert body["local"]["available"] is False


def test_get_video_not_found(client):
    resp = client.get("/api/videos/missing")
    assert resp.status_code == 404