from __future__ import annotations

import json
from datetime import date
from pathlib import Path

import pytest
from django.core.management import call_command

from apps.ingestion.extractors.bcl import BCLSnapshotExtractor
from apps.ingestion.extractors.base import ExtractorNormalizationError
from apps.ingestion.extractors.registry import create_extractor


def _load_fixture(path: str) -> dict:
    fixture_path = Path(__file__).parent / "fixtures" / path
    return json.loads(fixture_path.read_text(encoding="utf-8"))


@pytest.mark.django_db
def test_bcl_extractor_normalizes_fixture_payload(tmp_path, settings):
    settings.EXTRACTOR_BCL_STATS_URL = "https://www.championsleague.basketball/public/stats.json"
    settings.EXTRACTOR_BCL_SEASON_LABEL = "2025-2026"
    settings.EXTRACTOR_BCL_COMPETITION_EXTERNAL_ID = "bcl"
    settings.EXTRACTOR_BCL_COMPETITION_NAME = "Basketball Champions League"

    fixture_payload = _load_fixture("bcl/bcl_players_stats.json")

    class FakeClient:
        def get_json(self, *_args, **_kwargs):
            return fixture_payload

    extractor = BCLSnapshotExtractor(http_client=FakeClient())
    output_path = tmp_path / "bcl.json"
    result = extractor.run(output_path=output_path, snapshot_date=date(2026, 3, 13))

    assert result.extractor_name == "bcl"
    assert result.source_name == "bcl"
    assert result.records_count == 1

    payload = json.loads(output_path.read_text(encoding="utf-8"))
    assert payload["source_name"] == "bcl"
    assert payload["snapshot_date"] == "2026-03-13"
    row = payload["records"][0]
    assert row["competition_external_id"] == "bcl"
    assert row["competition_name"] == "Basketball Champions League"
    assert row["team_external_id"] == "bcl-team-murcia"
    assert row["team_name"] == "UCAM Murcia"
    assert row["player_external_id"] == "bcl-player-42"
    assert row["full_name"] == "John Carter"
    assert row["minutes_per_game"] == 29.1
    assert row["three_pt_pct"] == 37.2


@pytest.mark.django_db
def test_bcl_extractor_accepts_partial_public_player_bio_fields(tmp_path, settings):
    settings.EXTRACTOR_BCL_STATS_URL = "https://www.championsleague.basketball/public/stats.json"
    settings.EXTRACTOR_BCL_SEASON_LABEL = "2025-2026"
    settings.EXTRACTOR_BCL_COMPETITION_EXTERNAL_ID = "bcl"
    settings.EXTRACTOR_BCL_COMPETITION_NAME = "Basketball Champions League"

    fixture_payload = _load_fixture("bcl/bcl_players_stats_partial_public.json")

    class FakeClient:
        def get_json(self, *_args, **_kwargs):
            return fixture_payload

    extractor = BCLSnapshotExtractor(http_client=FakeClient())
    output_path = tmp_path / "bcl-partial.json"
    result = extractor.run(output_path=output_path, snapshot_date=date(2026, 3, 13))

    assert result.records_count == 1
    payload = json.loads(output_path.read_text(encoding="utf-8"))
    row = payload["records"][0]
    assert row["full_name"] == "Alex Novak"
    assert row["first_name"] is None
    assert row["last_name"] is None
    assert row["birth_date"] is None
    assert row["nationality"] is None
    assert row["height_cm"] is None
    assert row["weight_kg"] is None
    assert row["position"] is None
    assert row["games_played"] == 10


@pytest.mark.django_db
def test_bcl_extractor_still_fails_when_required_stats_are_missing(settings):
    settings.EXTRACTOR_BCL_STATS_URL = "https://www.championsleague.basketball/public/stats.json"
    settings.EXTRACTOR_BCL_SEASON_LABEL = "2025-2026"
    settings.EXTRACTOR_BCL_COMPETITION_EXTERNAL_ID = "bcl"
    settings.EXTRACTOR_BCL_COMPETITION_NAME = "Basketball Champions League"

    fixture_payload = _load_fixture("bcl/bcl_players_stats_partial_public.json")
    fixture_payload["data"][0].pop("ppg")

    class FakeClient:
        def get_json(self, *_args, **_kwargs):
            return fixture_payload

    extractor = BCLSnapshotExtractor(http_client=FakeClient())
    with pytest.raises(ExtractorNormalizationError):
        extractor.run(write_output=False, snapshot_date=date(2026, 3, 13))


@pytest.mark.django_db
def test_bcl_extractor_registry_selection(settings):
    settings.EXTRACTOR_BCL_STATS_URL = "https://www.championsleague.basketball/public/stats.json"
    settings.EXTRACTOR_BCL_SEASON_LABEL = "2025-2026"
    extractor = create_extractor("bcl")
    assert isinstance(extractor, BCLSnapshotExtractor)


@pytest.mark.django_db
def test_run_bcl_extractor_command_writes_snapshot(tmp_path, settings, monkeypatch):
    settings.EXTRACTOR_BCL_STATS_URL = "https://www.championsleague.basketball/public/stats.json"
    settings.EXTRACTOR_BCL_SEASON_LABEL = "2025-2026"
    settings.EXTRACTOR_BCL_COMPETITION_EXTERNAL_ID = "bcl"
    settings.EXTRACTOR_BCL_COMPETITION_NAME = "Basketball Champions League"

    fixture_payload = _load_fixture("bcl/bcl_players_stats.json")

    class FakeClient:
        def get_json(self, *_args, **_kwargs):
            return fixture_payload

    monkeypatch.setattr(
        "apps.ingestion.extractors.bcl.ResponsibleHttpClient",
        lambda **_kwargs: FakeClient(),
    )

    call_command(
        "run_bcl_extractor",
        "--output-path",
        str(tmp_path),
        "--snapshot-date",
        "2026-03-13",
    )

    files = list(tmp_path.glob("bcl-2026-03-13.json"))
    assert len(files) == 1
    payload = json.loads(files[0].read_text(encoding="utf-8"))
    assert payload["source_name"] == "bcl"
    assert len(payload["records"]) == 1