200 lines
7.1 KiB
Python
200 lines
7.1 KiB
Python
"""
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将 MemoryService.retrieve / evidence bundle 格式化为 prompt 用短文本（叙事与访谈共用）。
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"""
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from __future__ import annotations
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import json
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import re
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def _normalize_evidence_line(s: str) -> str:
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return re.sub(r"\s+", " ", (s or "").strip().lower())
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def dedupe_evidence_chunk_rows(chunks: list) -> list:
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"""
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对 relevant_chunks 做稳定去重：按归一化后长度降序 + 原下标，单遍包含判定；
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复杂度 O(n log n)；输出按原顺序中保留条目的相对顺序稳定。
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"""
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extracted: list[tuple[int, str, object]] = []
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for i, c in enumerate(chunks):
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content = (
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c.get("content", "") if isinstance(c, dict) else getattr(c, "content", "")
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)
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t = (content or "").strip()
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if not t:
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continue
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extracted.append((i, t, c))
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if len(extracted) <= 1:
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return [x[2] for x in extracted]
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extracted.sort(
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key=lambda x: (-len(_normalize_evidence_line(x[1])), x[0]),
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)
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kept_norms: list[str] = []
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kept: list[tuple[int, object]] = []
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for orig_idx, text, c in extracted:
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n = _normalize_evidence_line(text)
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dup = False
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for kn in kept_norms:
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if len(n) <= len(kn) and n in kn:
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dup = True
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break
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if not dup:
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kept_norms.append(n)
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kept.append((orig_idx, c))
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kept.sort(key=lambda x: x[0])
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return [x[1] for x in kept]
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def _flatten_object_json(obj_raw: object) -> str:
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"""Extract readable text from fact object_json (may be dict, JSON string, or plain str)."""
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if isinstance(obj_raw, dict):
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return str(obj_raw.get("value", "")) or ", ".join(
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f"{k}={v}" for k, v in obj_raw.items() if v
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)
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if isinstance(obj_raw, str):
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s = obj_raw.strip()
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if s.startswith("{"):
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try:
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parsed = json.loads(s)
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if isinstance(parsed, dict):
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return str(parsed.get("value", s)) or s
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except (json.JSONDecodeError, TypeError):
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pass
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return s
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return str(obj_raw) if obj_raw else ""
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def format_user_memory_for_chat_display(
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text: str,
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*,
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verbatim: bool = False,
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) -> str:
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"""给聊天态的记忆文本加清晰归属，不改写原内容本身。"""
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t = (text or "").strip()
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if not t:
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return ""
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if verbatim:
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return f"用户曾说：「{t}」"
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return f"关于用户：{t}"
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def format_evidence_chunks_for_chat_prompt(evidence: dict) -> str:
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"""聊天访谈专用：将检索 bundle 格式化为带编号引用与安全说明的短文本."""
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chunks = evidence.get("relevant_chunks") or []
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chunks = dedupe_evidence_chunk_rows(chunks[:10])
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summaries = evidence.get("relevant_summaries") or []
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facts = evidence.get("relevant_facts") or []
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stories = evidence.get("relevant_stories") or []
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header = (
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"【相关记忆摘录·聊天专用】\n"
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"以下编号条目均来自**用户过往口述或系统摘要**，**不是**助手本人经历。\n"
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"承接时**必须**用「你之前提过…」「你说过…」「你刚讲到…」等**归因式**引用；\n"
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"**禁止**改写成「我当时…」「我小时候…」「我演过…」等助手第一人称亲历口吻；"
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"**禁止**把条目当作你与用户的共同回忆或无归因复述。\n"
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)
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lines: list[str] = []
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n = 0
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for c in chunks:
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content = (
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c.get("content", "") if isinstance(c, dict) else getattr(c, "content", "")
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)
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raw = (content or "").strip()
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if not raw:
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continue
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n += 1
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cid = ""
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if isinstance(c, dict) and c.get("id"):
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cid = str(c.get("id", ""))[:12]
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label = f"[M{n}]" + (f"(id…{cid})" if cid else "")
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safe = format_user_memory_for_chat_display(raw, verbatim=True)
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lines.append(f"{label} {safe}")
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for s in summaries[:3]:
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if isinstance(s, dict):
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st = (s.get("content") or "").strip()
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stype = (s.get("summary_type") or "").strip()
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if not st:
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continue
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n += 1
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prefix = f"[摘要:{stype}]" if stype else "[摘要]"
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safe = format_user_memory_for_chat_display(f"{prefix} {st}")
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lines.append(f"[M{n}] {safe}")
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for f in facts[:5]:
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if isinstance(f, dict):
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subj = f.get("subject", "")
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pred = f.get("predicate", "")
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obj_raw = f.get("object_json", "")
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obj = _flatten_object_json(obj_raw)
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if not (subj or pred):
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continue
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n += 1
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fact_line = (
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f"{subj}：{pred}（{obj}）" if obj else f"{subj}：{pred}"
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)
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safe = format_user_memory_for_chat_display(fact_line)
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lines.append(f"[M{n}] {safe}")
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for st in stories[:3]:
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if isinstance(st, dict):
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title = (st.get("title") or "").strip()
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summ = (st.get("summary") or "").strip()
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if not (title or summ):
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continue
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n += 1
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safe = format_user_memory_for_chat_display(
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" ".join(x for x in (title, summ) if x)
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)
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lines.append(f"[M{n}] {safe}")
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if not lines:
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return ""
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return header + "\n".join(lines)
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def format_evidence_chunks_for_prompt(evidence: dict) -> str:
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"""将 MemoryService.retrieve 结果格式化为简短文本，供叙事与访谈 prompt 使用."""
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chunks = evidence.get("relevant_chunks") or []
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chunks = dedupe_evidence_chunk_rows(chunks[:10])
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summaries = evidence.get("relevant_summaries") or []
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facts = evidence.get("relevant_facts") or []
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stories = evidence.get("relevant_stories") or []
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parts: list[str] = []
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for c in chunks:
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content = (
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c.get("content", "") if isinstance(c, dict) else getattr(c, "content", "")
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)
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if content:
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parts.append(content.strip())
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for s in summaries[:3]:
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if isinstance(s, dict):
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st = (s.get("content") or "").strip()
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stype = (s.get("summary_type") or "").strip()
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if st:
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label = f"[摘要:{stype}]" if stype else "[摘要]"
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parts.append(f"{label} {st}")
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for f in facts[:5]:
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if isinstance(f, dict):
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subj = f.get("subject", "")
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pred = f.get("predicate", "")
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obj_raw = f.get("object_json", "")
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obj = _flatten_object_json(obj_raw)
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if subj or pred:
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if obj:
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parts.append(f"{subj}：{pred}（{obj}）")
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else:
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parts.append(f"{subj}：{pred}")
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else:
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parts.append(f"{getattr(f, 'subject', '')}：{getattr(f, 'predicate', '')}")
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for st in stories[:3]:
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if isinstance(st, dict):
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title = (st.get("title") or "").strip()
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summ = (st.get("summary") or "").strip()
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if title or summ:
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parts.append(" ".join(x for x in (title, summ) if x))
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return "\n\n".join(parts) if parts else ""
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