"""合成筛选：人工确认的条件表，不是通用自然语言解析器。"""
import json
from decimal import Decimal as D

rules = [("pe_ttm", "lt", D("20")), ("revenue_growth", "ge", D("0.10"))]
rows = [
    {"symbol": "AAA", "pe_ttm": "18", "revenue_growth": "0.12"},
    {"symbol": "BBB", "pe_ttm": "24", "revenue_growth": "0.30"},
    {"symbol": "CCC", "pe_ttm": "16", "revenue_growth": None},
]

def evaluate(row, active):
    checks = []
    for field, operator, threshold in active:
        if operator not in {"lt", "ge"}:
            raise ValueError("unsupported_operator")
        value = row.get(field)
        checks.append(None if value is None else
                      (D(value) < threshold if operator == "lt" else D(value) >= threshold))
    return "fail" if False in checks else "unknown" if None in checks else "pass"

result = {row["symbol"]: evaluate(row, rules) for row in rows}
assert result == {"AAA": "pass", "BBB": "fail", "CCC": "unknown"}
assert evaluate({"pe_ttm": "20", "revenue_growth": "0.10"}, rules) == "fail"
assert evaluate({"pe_ttm": "19", "revenue_growth": "0.10"}, rules) == "pass"
unresolved = ["management quality"]
assert len(unresolved) == 1
try:
    evaluate(rows[0], [("pe_ttm", "gte", D("20"))])
except ValueError as exc:
    assert str(exc) == "unsupported_operator"
else:
    raise AssertionError("未知运算符必须阻断")
print(json.dumps({"result": result, "unresolved": unresolved}, sort_keys=True))