"""管理域评分配置/引擎判别测试(批次B)。"""
import json

import sqlalchemy as sa

from app.db.models import EmployeeScoreConfig
from app.management.metric_definitions import (
    DEFAULT_SCORE_CONFIG,
    METRIC_DEFINITIONS,
    validate_config,
)


def test_config_weights_sum_and_structure():
    dims = DEFAULT_SCORE_CONFIG["dimensions"]
    assert sum(d["weight"] for d in dims.values()) == 100
    # 一期 pending_data 的维度不参与试算
    available = [d for d in dims.values() if d.get("status") != "pending_data"]
    assert sum(d["weight"] for d in available) == 70  # 30+25+15
    assert dims["action"]["status"] == "pending_data"
    assert dims["risk"]["status"] == "pending_data"


def test_config_normalization_declared():
    assert DEFAULT_SCORE_CONFIG["normalization"] == "available_only_rescale"


def test_validate_config_rejects_bad_weight_sum():
    bad = json.loads(json.dumps(DEFAULT_SCORE_CONFIG))  # deep copy
    bad["dimensions"]["service"]["weight"] = 26  # 总和 101
    problems = validate_config(bad)
    assert any("权重" in p for p in problems)


def test_metric_definitions_cover_scored_metrics():
    # 每个参与评分的 metric_code 都有元数据(名称/单位/方向)
    for dim in DEFAULT_SCORE_CONFIG["dimensions"].values():
        for code in dim.get("metrics", {}):
            md = METRIC_DEFINITIONS[code if code in METRIC_DEFINITIONS else "active_share"]
            # band 型指标的 key 带 _band 后缀,spec 里有 metric 字段:
            spec = dim["metrics"][code]
            src = spec.get("metric", code)
            assert src in METRIC_DEFINITIONS
            m = METRIC_DEFINITIONS[src]
            assert m["name"] and m["unit"] and m["direction"] in (1, -1)


async def test_seed_and_idempotent(make_session):
    from app.sync.cli import _seed_score_config  # 纯会话函数
    s = make_session
    v1 = await _seed_score_config(s)
    await s.commit()
    assert v1 == "v1.0"
    rows = (await s.execute(sa.select(EmployeeScoreConfig))).scalars().all()
    assert len(rows) == 1 and rows[0].status == "active"
    # 幂等:已存在同版本返回 None 不新建
    assert await _seed_score_config(s) is None
    await s.commit()
    assert len((await s.execute(sa.select(EmployeeScoreConfig))).scalars().all()) == 1