"""由每条清单项的检查结论生成问题（FR-M3-03、m3-plan §2.3）。

- 级别从清单项算，不让模型定（参考项目让模型定级别，模型可以把高危项降成低危）；
- 说明只写事实和出处，不写整改建议（报价类问题的「建议」会写出数字，红线 6）；
- 「已响应」不生成问题，结论留在 check_item_result 里。
"""

from __future__ import annotations

from dataclasses import dataclass
from typing import Any

from bid_doctor.check.match import Result

FATAL_CATEGORIES = {"qualification", "invalidity"}
REASONS = {
    "evidence_missing": "没有给出投标原文",
    "sid_format": "引用的句子编号写法不对",
    "sid_unknown": "引用的句子不在候选范围内",
    "quote_not_original": "引文和投标原文对不上",
    "quote_too_short": "引文太短，无法核对",
    "missing_answer": "这一条没有得到判断结果",
    "model_error": "模型服务暂时不可用",
}


@dataclass(frozen=True, slots=True)
class Spec:
    type: str
    severity: str
    title: str
    explanation: str
    detail: dict[str, Any]


def severity(item: dict[str, Any]) -> str:
    """★ 条款、法规列明或原文写明无效的、资格条件 → 致命；▲ 参数、评分项（缺证明材料）→ 重要；其余 → 提示。"""
    cats = set(item.get("categories") or [])
    if item.get("importance") == "substantive" or cats & FATAL_CATEGORIES:
        return "fatal"
    if item.get("importance") == "important" or "scoring" in cats:
        return "important"
    return "hint"


def _pages(pages: list[int]) -> str:
    return "、".join(f"第 {p} 页" for p in pages)


def spec(result: Result, item: dict[str, Any]) -> Spec | None:
    sev = severity(item)
    name = str(item.get("title") or "")
    base = {"importance_basis": item.get("importance_basis"), **result.detail}
    scope = "、".join(result.detail.get("search_scope") or [])
    if result.verdict == "responded":
        return None
    if result.verdict == "not_found" and result.evidence_status == "unverified":
        claimed = result.detail.get("claimed_pages") or []
        where = f"{_pages(claimed)}有响应" if claimed else "有响应"
        why = REASONS.get(result.reason_code or "", result.reason_code or "")
        text = f"模型认为投标文件{where}，但出处没能核对（{why}），按「未找到响应」处理。请人工核对。"
        return Spec("unresponded", sev, f"未找到响应：{name}", text, {**base, "evidence_status": "unverified"})
    if result.verdict == "not_found":
        text = f"在投标文件（{scope}）中没有找到对这条要求的响应。" if scope else "没有找到对这条要求的响应。"
        return Spec("unresponded", sev, f"未找到响应：{name}", text, base)
    if result.verdict == "negative_deviation":
        return Spec(
            "negative_deviation", sev, f"负偏离未说明：{name}", "投标文件写明了偏离或不满足，没有找到说明。", base
        )
    if result.verdict == "suspected_unmet":
        value = result.detail.get("response_value")
        text = (
            f"投标文件给出的值（{value}）按要求值判断可能不满足。"
            if value
            else "投标文件给出的值按要求值判断可能不满足。"
        )
        return Spec("suspected_unmet", sev, f"疑似不满足：{name}", text, base)
    if result.verdict == "no_value":
        text = "投标文件只写了满足或响应，没有给出要求里要的具体值或材料。"
        return Spec("suspected_unmet", "hint", f"未给出具体值：{name}", text, {**base, "kind": "no_value"})
    if result.verdict == "scanned":
        text = "候选内容所在的页面是扫描件，系统读不出文字，请人工核对。"
        return Spec("manual_review", sev, f"请人工核对：{name}", text, base)
    why = REASONS.get(result.reason_code or "", result.reason_code or "")
    return Spec("manual_review", sev, f"未判定：{name}", f"这条要求本次没有完成判断（{why}），请人工核对。", base)