rebuild(stage-12): deliver private review workflows

next/backend/features/review/views.py

@@ -0,0 +1,54 @@
+from __future__ import annotations
+
+import json
+from typing import Any
+
+ACTIONS = {"buy": "买入", "sell": "卖出", "add": "加仓", "trim": "减仓", "watch": "观察"}
+EMOTIONS = {
+    "calm": "平静",
+    "confident": "笃定",
+    "hesitant": "犹豫",
+    "anxious": "焦虑",
+    "impulsive": "冲动",
+}
+
+
+def note(row) -> dict[str, Any] | None:
+    return dict(row) if row is not None else None
+
+
+def trades(rows) -> list[dict[str, Any]]:
+    result = []
+    for row in rows:
+        item = dict(row)
+        item["tags"] = json.loads(str(item.pop("tags_json")))
+        item["action_label"] = ACTIONS[str(item["action"])]
+        item["emotion_label"] = EMOTIONS[str(item["emotion"])]
+        result.append(item)
+    return result
+
+
+def trade_summary(items: list[dict[str, Any]]) -> dict[str, Any]:
+    realized = [
+        item for item in items if item["pnl_amount"] is not None or item["pnl_pct"] is not None
+    ]
+    wins = sum(
+        float(item["pnl_pct"] if item["pnl_pct"] is not None else item["pnl_amount"]) > 0
+        for item in realized
+    )
+    amounts = [float(item["pnl_amount"]) for item in items if item["pnl_amount"] is not None]
+    positions = [float(item["position_pct"]) for item in items if item["position_pct"] is not None]
+    return {
+        "total": len(items),
+        "realized": len(realized),
+        "win_rate": round(wins / len(realized) * 100, 1) if realized else None,
+        "pnl_amount": round(sum(amounts), 2) if amounts else None,
+        "average_position": round(sum(positions) / len(positions), 1) if positions else None,
+    }
+
+
+def alert(row, today: str) -> dict[str, Any]:
+    item = dict(row)
+    item["is_read"] = bool(item["is_read"])
+    item["due"] = str(item["available_date"]) <= today
+    return item