"""AI PMO kernel closure data-source mixin."""

from __future__ import annotations

from . import ai_pmo_kernel_common as _common

for _name, _value in vars(_common).items():
    if not _name.startswith("__"):
        globals()[_name] = _value


class KernelClosureDataMixin:
    async def _load_closure_turns_from_processing_logs(
        self,
        *,
        source_message_id: Optional[str],
        message_text: str,
    ) -> list[dict[str, str]]:
        message_id = str(source_message_id or "").strip()
        if not message_id:
            return []
        rows = (
            await self.db.execute(
                select(AIProcessingLog)
                .where(
                    and_(
                        AIProcessingLog.tenant_id == self.tenant_id,
                        AIProcessingLog.feishu_message_id == message_id,
                    )
                )
                .order_by(AIProcessingLog.id.asc())
                .limit(12)
            )
        ).scalars().all()
        if not rows:
            return []
        normalized_message = self._normalize_dialogue_text(message_text, max_len=600)
        turns: list[dict[str, str]] = []
        for row in rows:
            user_text = self._normalize_feishu_user_text(
                row.normalized_text or row.raw_message,
                max_len=260,
            )
            if user_text and (not normalized_message or user_text != normalized_message):
                turns = self._merge_closure_turns(turns, [{"role": "user", "text": user_text}])
            assistant_text = self._extract_assistant_text_from_log_payload(row.operation_result)
            if assistant_text:
                turns = self._merge_closure_turns(turns, [{"role": "assistant", "text": assistant_text}])
        return turns[-4:]

    @classmethod
    def _score_qa_row_for_closure(
        cls,
        *,
        row: QARecord,
        normalized_message: str,
        reference_at: Optional[datetime],
    ) -> float:
        question = cls._normalize_dialogue_text(row.question, max_len=500)
        answer = cls._normalize_dialogue_text(row.answer, max_len=900)
        if not question or not answer:
            return -1.0
        score = 0.0
        merged = f"{question} {answer}"
        if "信号源" in merged:
            score += 3.0
        if any(token in merged for token in ("模块", "后端", "前端", "流程", "SSTC", "任务", "执行", "接口")):
            score += 2.0
        if any(token in answer for token in ("暂时无法生成可靠回答", "模型服务异常", "请稍后重试")):
            score -= 5.0
        if normalized_message and cls._is_generic_signal_source_message(normalized_message):
            if "信号源" in question:
                score += 1.5
            if "项目" in answer:
                score += 1.0
        created_at = cls._parse_datetime_like(getattr(row, "created_at", None))
        if reference_at is not None and created_at is not None:
            gap_seconds = abs((reference_at - created_at).total_seconds())
            if gap_seconds > 7 * 24 * 3600:
                score -= 4.0
            elif gap_seconds <= 6 * 3600:
                score += 1.5
            elif gap_seconds <= 24 * 3600:
                score += 0.8
        return score

    async def _load_closure_turns_from_qa_records(
        self,
        *,
        owner_user_id: Optional[int],
        project_id: Optional[int],
        captured_at: Optional[datetime],
        message_text: str,
    ) -> list[dict[str, str]]:
        uid = _safe_int(owner_user_id)
        pid = _safe_int(project_id)
        if uid is None and pid is None:
            return []
        normalized_message = self._normalize_dialogue_text(message_text, max_len=600)
        reference_at = self._parse_datetime_like(captured_at)
        candidates: list[QARecord] = []
        conditions: list[Any] = []
        if uid is not None and pid is not None:
            conditions.append(and_(QARecord.asked_by == int(uid), QARecord.project_id == int(pid)))
        if pid is not None:
            conditions.append(QARecord.project_id == int(pid))
        if uid is not None:
            conditions.append(QARecord.asked_by == int(uid))
        for condition in conditions:
            stmt = select(QARecord).where(
                and_(
                    QARecord.tenant_id == self.tenant_id,
                    QARecord.asked_via == "feishu",
                    condition,
                )
            )
            if reference_at is not None:
                stmt = stmt.where(QARecord.created_at <= reference_at)
            rows = (
                await self.db.execute(
                    stmt.order_by(QARecord.created_at.desc(), QARecord.id.desc()).limit(12)
                )
            ).scalars().all()
            candidates.extend(rows)
            if rows:
                break
        if not candidates:
            return []
        best_row: Optional[QARecord] = None
        best_score = -999.0
        seen_ids: set[int] = set()
        for row in candidates:
            row_id = int(getattr(row, "id", 0) or 0)
            if row_id > 0 and row_id in seen_ids:
                continue
            seen_ids.add(row_id)
            score = self._score_qa_row_for_closure(
                row=row,
                normalized_message=normalized_message,
                reference_at=reference_at,
            )
            if score > best_score:
                best_score = score
                best_row = row
        if best_row is None or best_score < 0.5:
            return []
        question = self._normalize_dialogue_text(best_row.question, max_len=260)
        answer = self._normalize_dialogue_text(best_row.answer, max_len=420)
        if not question or not answer:
            return []
        return [
            {"role": "user", "text": question},
            {"role": "assistant", "text": answer},
        ]