Files
web-page-backend/insta-lab/app/selection.py
2026-06-11 02:19:32 +09:00

82 lines
3.0 KiB
Python

"""발행 가치 자율 선별 — 순수 점수 함수 (외부 IO 없음, 단위테스트 대상).
신호: dedup(게이트), freshness, account_fit, claude(선택).
final = 가중합(존재하는 신호만 정규화). eligible = dedup통과 and final>=threshold.
"""
from __future__ import annotations
from datetime import datetime, timezone
from typing import Any, Dict, List, Optional
DEFAULT_WEIGHTS = {"freshness": 0.3, "account_fit": 0.3, "claude": 0.4}
FRESH_WINDOW_HOURS = 168.0 # 7일 → 0
def _parse_iso(s: str) -> datetime:
return datetime.fromisoformat(s.replace("Z", "+00:00")).astimezone(timezone.utc)
def _norm(kw: str) -> str:
return (kw or "").strip().lower()
def _is_duplicate(keyword: str, category: str, issued: List[Dict[str, Any]]) -> bool:
n = _norm(keyword)
if not n:
return False
for it in issued:
if it.get("category") != category:
continue
m = _norm(it.get("keyword", ""))
if not m:
continue
if n == m or n in m or m in n:
return True
return False
def _freshness(suggested_at: str, now: datetime) -> float:
try:
hours = (now - _parse_iso(suggested_at)).total_seconds() / 3600.0
except Exception:
return 0.0
return max(0.0, min(1.0, 1.0 - hours / FRESH_WINDOW_HOURS))
def score_candidates(
candidates: List[Dict[str, Any]],
issued_topics: List[Dict[str, Any]],
prefs: Dict[str, float],
claude_scores: Optional[Dict[int, float]] = None,
weights: Optional[Dict[str, float]] = None,
threshold: float = 0.6,
now_iso: Optional[str] = None,
) -> List[Dict[str, Any]]:
w = weights or DEFAULT_WEIGHTS
now = _parse_iso(now_iso) if now_iso else datetime.now(timezone.utc)
max_w = max(prefs.values()) if prefs else 1.0
out: List[Dict[str, Any]] = []
for c in candidates:
cat = c.get("category", "")
dup = _is_duplicate(c.get("keyword", ""), cat, issued_topics)
freshness = _freshness(c.get("suggested_at", ""), now)
weight = prefs.get(cat, 1.0)
account_fit = max(0.0, min(1.0, (weight / max_w) * float(c.get("score", 0.0))))
claude = None
if claude_scores is not None and c["id"] in claude_scores:
claude = max(0.0, min(1.0, float(claude_scores[c["id"]])))
parts = [("freshness", freshness), ("account_fit", account_fit)]
if claude is not None:
parts.append(("claude", claude))
total_w = sum(w[name] for name, _ in parts)
final = sum(w[name] * val for name, val in parts) / total_w if total_w else 0.0
eligible = (not dup) and (final >= threshold)
out.append({
"id": c["id"], "keyword": c.get("keyword"), "category": cat,
"final_score": round(final, 4), "eligible": eligible,
"breakdown": {"dedup_excluded": dup, "freshness": round(freshness, 4),
"account_fit": round(account_fit, 4), "claude": claude},
})
out.sort(key=lambda x: (-x["eligible"], -x["final_score"]))
return out