"""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",
    "over_budget": "超出本次检查的预算",
    "response_mismatch": "响应格写的是别的内容",
}


@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:
    out = _spec(result, item)
    note = result.detail.get("qualification_note")
    if out is None or not note:
        return out
    return Spec(out.type, out.severity, out.title, f"{out.explanation}{note}", out.detail)


def _spec(result: Result, item: dict[str, Any]) -> Spec | None:
    if result.detail.get("superseded_by"):
        return None  # 资质匹配出了更具体的问题（check/qualification.py），扫描件兜底那条不再单独出
    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 in ("responded", "implicit_accepted"):
        return None
    if result.verdict == "implicit_review":
        text = (
            "招标文件规定未列入偏离表的视为接受，投标文件里没有找到对这条要求的明确响应。"
            "这是实质性要求，请人工核对所投内容确实满足。"
        )
        return Spec("manual_review", "hint", f"请人工核对：{name}", text, {**base, "mode": "implicit"})
    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" and result.detail.get("mismatch"):
        text = (
            f"投标文件照抄了这条要求，但同一行的响应格写的是「{result.detail['mismatch'][:40]}」，"
            "和这条要求对不上，像是别的条目的内容。请核对。"
        )
        return Spec("unresponded", sev, f"响应可能对不上：{name}", text, base)
    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" and result.detail.get("deviation_unclear"):
        text = (
            f"这一行的偏离栏写的是「{result.detail.get('direct_read')}」，不是明确的「无偏离 / 满足」，"
            "请核对是否满足这条要求。"
        )
        return Spec("negative_deviation", "important" if sev == "fatal" else sev, f"偏离栏需核对：{name}", text, base)
    if result.verdict == "negative_deviation":
        cell = result.detail.get("direct_read")
        text = (
            f"投标文件这一行的偏离 / 响应栏写着「{cell}」，没有找到说明。"
            if cell
            else "投标文件写明了偏离或不满足，没有找到说明。"
        )
        return Spec("negative_deviation", sev, f"负偏离未说明：{name}", text, 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":
        total = result.detail.get("scanned_total") or 0
        where = result.detail.get("scanned_where")
        # 只说扫描件在哪几页，不说「材料可能在扫描件里」：扫描件上是不是这份材料，没有 OCR 分不出来
        text = (
            f"投标文件文字部分没有找到这份材料。{where} 是扫描件（共 {total} 页），系统读不出上面的文字；"
            "材料如果附在这些页上，请人工核对，没有附就是缺了。"
            if where
            else f"投标文件文字部分没有找到这份材料。投标文件里有 {total} 页扫描件，系统读不出上面的文字，"
            "材料可能在扫描件页上，请人工核对。"
        )
        return Spec("manual_review", "hint", f"请人工核对（文字部分没找到）：{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)