Create scorer.py

core/scorer.py

@@ -0,0 +1,48 @@
+from typing import Dict, Any, List
+
+def _safe(v):
+    try:
+        return float(v) if v not in (None, "", "null") else 0.0
+    except Exception:
+        return 0.0
+
+def score_company(fin: Dict[str, Any]) -> Dict[str, Any]:
+    bs = fin.get("balance_sheet") or {}
+    is_ = fin.get("income_statement") or {}
+    cf = fin.get("cash_flows") or {}
+
+    total_assets = _safe(bs.get("total_assets"))
+    total_liab   = _safe(bs.get("total_liabilities"))
+    equity       = _safe(bs.get("total_equity"))
+    sales        = _safe(is_.get("sales"))
+    op_income    = _safe(is_.get("operating_income"))
+    net_income   = _safe(is_.get("net_income"))
+    ocf          = _safe(cf.get("operating_cash_flow"))
+
+    metrics: List[Dict[str, Any]] = []
+
+    # 安全性: 自己資本比率
+    eq_ratio = (equity / total_assets * 100) if total_assets > 0 else 0
+    metrics.append({"metric": "自己資本比率", "value": eq_ratio, "score": min(max(eq_ratio, 0), 100)})
+
+    # 収益性: 営業利益率
+    op_margin = (op_income / sales * 100) if sales > 0 else 0
+    metrics.append({"metric": "営業利益率", "value": op_margin, "score": min(max(op_margin*4, 0), 100)})
+
+    # 収益性: 最終利益率
+    net_margin = (net_income / sales * 100) if sales > 0 else 0
+    metrics.append({"metric": "当期純利益率", "value": net_margin, "score": min(max(net_margin*4, 0), 100)})
+
+    # キャッシュ: OCF/売上
+    ocf_rate = (ocf / sales * 100) if sales > 0 else 0
+    metrics.append({"metric": "営業CF率", "value": ocf_rate, "score": min(max(ocf_rate*3, 0), 100)})
+
+    # レバレッジ: 負債比率
+    debt_ratio = (total_liab / total_assets * 100) if total_assets > 0 else 0
+    debt_score = max(0, 100 - debt_ratio)  # 低いほど良い
+    metrics.append({"metric": "負債比率(低いほど◎)", "value": debt_ratio, "score": min(debt_score, 100)})
+
+    total = round(sum(m["score"] for m in metrics) / len(metrics), 1)
+    grade = "S" if total >= 90 else "A" if total >= 80 else "B" if total >= 70 else "C" if total >= 60 else "D"
+
+    return {"total_score": total, "grade": grade, "details": metrics}