"""report.profile.latest_profile_summary：repo 打桩，验证摘要选取纪律。"""

from __future__ import annotations

import json
from types import SimpleNamespace
from typing import Any

import pytest

from packages.report import repo
from packages.report.profile import latest_profile_summary

_DIAGNOSIS = {
    "dimensions": [
        {
            "key": "body_shape",
            "label": "体型",
            "status": "ok",
            "value": "梨形",
            "confidence": 0.9,
            "evidence": ["问卷自报肩窄胯宽"],
        },
        {"key": "style_impression", "status": "skipped", "value": None},
    ],
    "rule_hits": [
        {"rule_key": "pear_lower_dark", "dimension": "body_shape", "suggestion": "下装选深色"}
    ],
}


def _report(report_id: int, *, status: str, result: dict[str, Any]) -> Any:
    return SimpleNamespace(report_id=report_id, status=status, result=result)


@pytest.fixture
def stub_list(monkeypatch: pytest.MonkeyPatch) -> dict[str, Any]:
    state: dict[str, Any] = {"reports": []}

    async def fake_list(session: Any, *, user_id: int, limit: int = 20) -> list[Any]:
        state["limit"] = limit
        return state["reports"]

    monkeypatch.setattr(repo, "list_reports", fake_list)
    return state


class TestLatestProfileSummary:
    async def test_no_reports_returns_none(self, stub_list: dict[str, Any]) -> None:
        assert await latest_profile_summary(None, user_id=1, max_chars=800) is None  # type: ignore[arg-type]

    async def test_succeeded_report_with_diagnosis(self, stub_list: dict[str, Any]) -> None:
        stub_list["reports"] = [_report(1, status="succeeded", result={"diagnosis": _DIAGNOSIS})]
        summary = await latest_profile_summary(None, user_id=1, max_chars=800)  # type: ignore[arg-type]
        assert summary is not None
        payload = json.loads(summary)
        values = {d["key"]: d["value"] for d in payload["dimensions"]}
        assert values["body_shape"] == "梨形"
        # skipped 维度不进素材（防幻觉第一道闸）
        assert "style_impression" not in values
        assert payload["rule_hits"][0]["rule_key"] == "pear_lower_dark"

    async def test_latest_failed_falls_back_to_earlier_succeeded(
        self, stub_list: dict[str, Any]
    ) -> None:
        stub_list["reports"] = [
            _report(2, status="failed", result={}),
            _report(1, status="succeeded", result={"diagnosis": _DIAGNOSIS}),
        ]
        summary = await latest_profile_summary(None, user_id=1, max_chars=800)  # type: ignore[arg-type]
        assert summary is not None and "梨形" in summary

    async def test_succeeded_without_diagnosis_is_skipped(self, stub_list: dict[str, Any]) -> None:
        stub_list["reports"] = [_report(1, status="succeeded", result={"vision": {}})]
        assert await latest_profile_summary(None, user_id=1, max_chars=800) is None  # type: ignore[arg-type]

    async def test_budget_is_forwarded(self, stub_list: dict[str, Any]) -> None:
        """max_chars 收紧时低优先级维度被裁、硬结论保留（复用 copy 的裁剪纪律）。"""
        stub_list["reports"] = [_report(1, status="succeeded", result={"diagnosis": _DIAGNOSIS})]
        summary = await latest_profile_summary(None, user_id=1, max_chars=60)  # type: ignore[arg-type]
        assert summary is not None
        assert len(summary) > 60  # 硬结论永不裁，载荷可超预算（copy.py 既定语义）
        assert "梨形" in summary