"""测试核心路径。"""
import pytest
from datetime import datetime, timezone
from src.data.normalize import NormalizedMatch, normalize_bzzoiro, _parse_date, _to_int, _to_float, derive_season_label


class TestNormalize:
    def test_parse_date_iso(self):
        assert _parse_date("2026-09-15T15:00:00Z") is not None

    def test_parse_date_bare(self):
        assert _parse_date("2026-09-15") is not None

    def test_parse_date_none(self):
        assert _parse_date(None) is None
        assert _parse_date("") is None

    def test_to_int_strict(self):
        assert _to_int("2") == 2
        assert _to_int("2.0") == 2
        assert _to_int("2.8") is None  # 拒绝非整数值
        assert _to_int(None) is None
        assert _to_int("-") is None

    def test_to_float(self):
        assert _to_float("1.5") == 1.5
        assert _to_float(None) is None

    def test_normalize_bzzoiro_finished(self):
        raw = {
            "event_date": "2026-09-15T15:00:00Z",
            "status": "finished",
            "home_team": "Man City",
            "away_team": "Man United",
            "home_score": 2,
            "away_score": 1,
            "round_number": 5,
        }
        m = normalize_bzzoiro(raw, "E0")
        assert m is not None
        assert m.home_team == "Manchester City"
        assert m.away_team == "Manchester United"
        assert m.home_goals == 2
        assert m.away_goals == 1
        assert m.match_status == "finished"
        assert m.match_stage == "第 5 轮"

    def test_normalize_bzzoiro_unknown_status(self):
        raw = {"event_date": "2026-09-15", "status": "weird", "home_team": "A", "away_team": "B"}
        assert normalize_bzzoiro(raw, "E0") is None

    def test_normalized_match_validate_finished_no_score(self):
        m = NormalizedMatch(
            league_type="E0", date=_parse_date("2026-09-15"),
            home_team="A", away_team="B", match_status="finished",
        )
        with pytest.raises(ValueError, match="must have score"):
            m.validate()

    def test_normalized_match_validate_goals_range(self):
        m = NormalizedMatch(
            league_type="E0", date=_parse_date("2026-09-15"),
            home_team="A", away_team="B", match_status="finished",
            home_goals=50, away_goals=0,
        )
        with pytest.raises(ValueError, match="out of range"):
            m.validate()


class TestSeasonLabel:
    def test_august_is_new_season(self):
        # 8 月属于新赛季
        d = datetime(2026, 8, 15, tzinfo=timezone.utc)
        assert derive_season_label(d) == "2026-2027"

    def test_july_is_old_season(self):
        # 7 月属于上一赛季
        d = datetime(2026, 7, 15, tzinfo=timezone.utc)
        assert derive_season_label(d) == "2025-2026"

    def test_january_is_old_season(self):
        d = datetime(2026, 1, 15, tzinfo=timezone.utc)
        assert derive_season_label(d) == "2025-2026"


class TestProviderMock:
    """用 mock 测试 LLM provider 的解析逻辑。"""

    @pytest.mark.asyncio
    async def test_provider_parses_json(self, monkeypatch):
        from src.llm.provider import LLMProvider

        async def fake_post(*args, **kwargs):
            class FakeResp:
                status_code = 200
                def raise_for_status(self): pass
                def json(self):
                    return {
                        "choices": [{"message": {"content": '{"pred_home_goals": 1.5, "pred_away_goals": 1.0, "1x2": "1", "confidence": 0.7, "reasoning": "test"}'}}],
                        "usage": {"prompt_tokens": 100, "completion_tokens": 50},
                    }
            return FakeResp()

        import httpx
        monkeypatch.setattr(httpx.AsyncClient, "post", fake_post)

        p = LLMProvider(api_key="test", model="gpt-4o")
        resp = await p.chat("sys", "user", json_mode=True)
        assert resp.error is None
        assert resp.parsed is not None
        assert resp.parsed["pred_home_goals"] == 1.5
        assert resp.parsed["1x2"] == "1"