import json
from pathlib import Path

import pytest

from core.models import AppUser, BackupSchedule, Library, MediaSource, MediaItem


@pytest.fixture
def admin_user(db):
    return AppUser.objects.create_superuser("backup_admin", "backup@example.com", "secret-pass-123")


@pytest.mark.django_db
def test_backup_schedule_requires_admin(client):
    response = client.get("/api/backups/settings")
    assert response.status_code == 401


@pytest.mark.django_db
def test_backup_schedule_get_and_update(client, admin_user):
    client.login(username="backup_admin", password="secret-pass-123")

    response = client.get("/api/backups/settings")
    assert response.status_code == 200

    payload = {
        "enabled": True,
        "frequency": "weekly",
        "minute": 30,
        "hour": 3,
        "day_of_week": 6,
        "day_of_month": 1,
        "retention_count": 5,
    }
    update = client.put(
        "/api/backups/settings",
        data=json.dumps(payload),
        content_type="application/json",
    )
    assert update.status_code == 200

    schedule = BackupSchedule.get_solo()
    assert schedule.enabled is True
    assert schedule.frequency == "weekly"
    assert schedule.retention_count == 5


@pytest.mark.django_db
def test_backup_now_writes_json_and_strips_cached_paths(client, admin_user, settings, tmp_path):
    settings.BACKUP_ROOT = str(tmp_path)
    client.login(username="backup_admin", password="secret-pass-123")

    library = Library.objects.create(owner_user=admin_user, name="Backup Lib")
    source = MediaSource.objects.create(
        library=library,
        name="YT",
        source_type="youtube_playlist",
        uri="https://example.com/list",
    )
    MediaItem.objects.create(
        media_source=source,
        title="Cached Item",
        item_kind="movie",
        runtime_seconds=60,
        file_path="https://youtube.com/watch?v=abc",
        cached_file_path="/tmp/pytv_cache/abc.mp4",
    )

    resp = client.post("/api/backups/run")
    assert resp.status_code == 200
    filename = resp.json()["filename"]

    backup_path = Path(settings.BACKUP_ROOT) / filename
    assert backup_path.exists()

    payload = json.loads(backup_path.read_text(encoding="utf-8"))
    media_entries = [x for x in payload["items"] if x["model"] == "core.mediaitem"]
    assert media_entries
    assert media_entries[0]["fields"]["cached_file_path"] is None