Files
life-echo/api/app/features/memory/evidence_format.py
Kevin 3ae39838c0 feat(memoir): 路由阶段不要求标题,按正文字数门闸延迟 LLM 标题
- 从 story 路由 prompt/校验中移除 new_story_title,改由叙事管线在正文足够长时生成
- 新增 story_title_min_body_chars;短正文使用章节类别占位标题
- CATEGORY_TO_CHAT_STAGE 对齐访谈 state.slots 的 stage 键
- 删除相对口述长度的叙事回退,仅保留 merge JSON 极端缩水类 fallback
- evidence_format:解析 object_json 并优化事实条目标点符号
- 更新 narrative / experience 相关单测
2026-04-02 14:38:40 +08:00

124 lines
4.4 KiB
Python
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
"""
将 MemoryService.retrieve / evidence bundle 格式化为 prompt 用短文本(叙事与访谈共用)。
"""
from __future__ import annotations
import json
import re
def _normalize_evidence_line(s: str) -> str:
return re.sub(r"\s+", " ", (s or "").strip().lower())
def dedupe_evidence_chunk_rows(chunks: list) -> list:
"""
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;
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。
"""
extracted: list[tuple[int, str, object]] = []
for i, c in enumerate(chunks):
content = (
c.get("content", "") if isinstance(c, dict) else getattr(c, "content", "")
)
t = (content or "").strip()
if not t:
continue
extracted.append((i, t, c))
if len(extracted) <= 1:
return [x[2] for x in extracted]
extracted.sort(
key=lambda x: (-len(_normalize_evidence_line(x[1])), x[0]),
)
kept_norms: list[str] = []
kept: list[tuple[int, object]] = []
for orig_idx, text, c in extracted:
n = _normalize_evidence_line(text)
dup = False
for kn in kept_norms:
if len(n) <= len(kn) and n in kn:
dup = True
break
if not dup:
kept_norms.append(n)
kept.append((orig_idx, c))
kept.sort(key=lambda x: x[0])
return [x[1] for x in kept]
def _flatten_object_json(obj_raw: object) -> str:
"""Extract readable text from fact object_json (may be dict, JSON string, or plain str)."""
if isinstance(obj_raw, dict):
return str(obj_raw.get("value", "")) or ", ".join(
f"{k}={v}" for k, v in obj_raw.items() if v
)
if isinstance(obj_raw, str):
s = obj_raw.strip()
if s.startswith("{"):
try:
parsed = json.loads(s)
if isinstance(parsed, dict):
return str(parsed.get("value", s)) or s
except (json.JSONDecodeError, TypeError):
pass
return s
return str(obj_raw) if obj_raw else ""
def format_evidence_chunks_for_prompt(evidence: dict) -> str:
"""将 retrieve_evidence / retrieve_evidence_sync 结果格式化为简短文本,供叙事与访谈 prompt 使用。
包含 chunks、摘要若有、confirmed facts、timeline、故事摘要若有
"""
chunks = evidence.get("relevant_chunks") or []
chunks = dedupe_evidence_chunk_rows(chunks[:10])
summaries = evidence.get("relevant_summaries") or []
facts = evidence.get("relevant_facts") or []
timeline = evidence.get("timeline_hints") or []
stories = evidence.get("relevant_stories") or []
parts: list[str] = []
for c in chunks:
content = (
c.get("content", "") if isinstance(c, dict) else getattr(c, "content", "")
)
if content:
parts.append(content.strip())
for s in summaries[:3]:
if isinstance(s, dict):
st = (s.get("content") or "").strip()
stype = (s.get("summary_type") or "").strip()
if st:
label = f"[摘要:{stype}]" if stype else "[摘要]"
parts.append(f"{label} {st}")
for f in facts[:5]:
if isinstance(f, dict):
subj = f.get("subject", "")
pred = f.get("predicate", "")
obj_raw = f.get("object_json", "")
obj = _flatten_object_json(obj_raw)
if subj or pred:
if obj:
parts.append(f"{subj}{pred}{obj}")
else:
parts.append(f"{subj}{pred}")
else:
parts.append(f"{getattr(f, 'subject', '')}{getattr(f, 'predicate', '')}")
for t in timeline[:5]:
if isinstance(t, dict):
title = (t.get("title") or "").strip()
year = t.get("event_year")
desc = (t.get("description") or "").strip()
line = " ".join(
x for x in (str(year) if year is not None else "", title, desc) if x
)
if line:
parts.append(line)
for st in stories[:3]:
if isinstance(st, dict):
title = (st.get("title") or "").strip()
summ = (st.get("summary") or "").strip()
if title or summ:
parts.append(" ".join(x for x in (title, summ) if x))
return "\n\n".join(parts) if parts else ""