"""对码引擎单测:不依赖 DB / Oracle,纯内存验证四要素匹配 + 规格标准化。
运行: python -m pytest state_center/tests/test_match_engine.py -v
或直接: python state_center/tests/test_match_engine.py
"""
import os
import sys

sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__)))))

from state_center.app.match_engine import (  # noqa: E402
    MatchEngine, GoodsRecord, build_match_key, _norm_spec,
)


def _engine():
    eng = MatchEngine()
    eng.load_goods([
        GoodsRecord("阿卡波糖片", "国药准字H19990001", "50mg*30", "盒", "拜耳医药", "G001", "C001"),
        GoodsRecord("哈药牌钙铁锌口服液", "国药准字Z20000002", "10ml*10", "盒", "哈药集团", "G002", "C002"),
        # 同名多规格(用于一对多)
        GoodsRecord("阿卡波糖片", "国药准字H19990001", "50mg*60", "盒", "拜耳医药", "G003", "C003"),
    ])
    return eng


def test_spec_normalize_product():
    # 15×2 展开成 30
    assert _norm_spec("15×2") == _norm_spec("15*2")
    assert _norm_spec("50mg*30").startswith("1500") or "mg" in _norm_spec("50mg*30")


def test_exact_hit():
    eng = _engine()
    r = eng.match_one(1, "哈药牌钙铁锌口服液", "国药准字Z20000002", "10ml*10", "哈药集团")
    assert r.match_status == "EXACT"
    assert r.goods_id == "G002"


def test_multi_same_name():
    eng = _engine()
    # 规格写法对不上任何精确键,但商品名命中多条 → MULTI
    r = eng.match_one(2, "阿卡波糖片", "国药准字H19990001", "写个对不上的规格", "拜耳医药")
    assert r.match_status == "MULTI"
    assert len(r.candidates) >= 2


def test_none():
    eng = _engine()
    r = eng.match_one(3, "不存在的药", "X", "1", "无")
    assert r.match_status == "NONE"


def test_alias_priority():
    eng = _engine()
    key = build_match_key("阿卡波糖", "", "30片", "")  # 平台奇葩写法
    eng.load_aliases({key: ("G001", "C001", "盒")})
    r = eng.match_one(4, "阿卡波糖", "", "30片", "")
    assert r.match_status == "ALIAS"
    assert r.goods_id == "G001"


def test_manufacturer_tolerance():
    # 进口英文厂家:大小写/标点容错
    k1 = build_match_key("药A", "H1", "1", "Abbott Biologicals B.V.")
    k2 = build_match_key("药A", "H1", "1", "abbott biologicals bv")
    assert k1 == k2


if __name__ == "__main__":
    import traceback
    fns = [v for k, v in sorted(globals().items()) if k.startswith("test_")]
    passed = 0
    for fn in fns:
        try:
            fn()
            print(f"PASS {fn.__name__}")
            passed += 1
        except Exception:
            print(f"FAIL {fn.__name__}")
            traceback.print_exc()
    print(f"\n{passed}/{len(fns)} passed")