feat: mofin_db get_price_from_db/get_prices_batch helpers + strategy_evaluator DB-first

mofin_db.py

@@ -833,6 +833,74 @@ def query_strategy_evaluations(conn: sqlite3.Connection, code: str = None) -> li
 # ═══════════════════════════════════════════════════════════
 
 def query_latest_market(conn: sqlite3.Connection) -> dict:
+    """获取最新一次市场快照（含 sector 详情）"""
+    row = conn.execute(
+        "SELECT * FROM market_snapshots ORDER BY id DESC LIMIT 1").fetchone()
+    if not row:
+        return {}
+    snap = dict(row)
+    # 关联 sectors
+    sectors = conn.execute(
+        "SELECT * FROM sector_snapshots WHERE snapshot_id = ? ORDER BY change_pct DESC",
+        (snap["id"],)).fetchall()
+    snap["sectors"] = [dict(r) for r in sectors]
+    snap["top_gainers"] = [dict(r) for r in sectors[:5]]
+    snap["top_losers"] = [dict(r) for r in sectors[-3:]]
+    return snap
+
+
+# ═══════════════════════════════════════════════════════════════════
+# 通用工具
+# ═══════════════════════════════════════════════════════════════════
+
+def get_price_from_db(code: str) -> tuple[float | None, float | None]:
+    """从 DB 读取最新价格（price_monitor 维护）。
+    返回 (price, change_pct) 或 (None, None)
+    
+    所有脚本应优先调用此函数，DB 无数据时才拉腾讯 API。
+    """
+    try:
+        import sqlite3
+        db = sqlite3.connect('/home/hmo/web-dashboard/data/mofin.db')
+        db.row_factory = sqlite3.Row
+        row = db.execute(
+            "SELECT price, change_pct FROM holdings WHERE code=? AND is_active=1", (str(code),)
+        ).fetchone()
+        if not row:
+            row = db.execute(
+                "SELECT price FROM holding_strategies WHERE code=? AND status='active' ORDER BY updated_at DESC LIMIT 1", (str(code),)
+            ).fetchone()
+        db.close()
+        if row:
+            return (row['price'], row['change_pct'] if 'change_pct' in row.keys() else None)
+    except Exception:
+        pass
+    return (None, None)
+
+
+def get_prices_batch_from_db(codes: list[str]) -> dict:
+    """从 DB 批量读取价格。返回 {code: (price, change_pct)}"""
+    results = {}
+    if not codes:
+        return results
+    try:
+        import sqlite3
+        db = sqlite3.connect('/home/hmo/web-dashboard/data/mofin.db')
+        db.row_factory = sqlite3.Row
+        for code in codes:
+            row = db.execute(
+                "SELECT price, change_pct FROM holdings WHERE code=? AND is_active=1", (str(code),)
+            ).fetchone()
+            if not row:
+                row = db.execute(
+                    "SELECT price FROM holding_strategies WHERE code=? AND status='active' ORDER BY updated_at DESC LIMIT 1", (str(code),)
+                ).fetchone()
+            if row and row['price']:
+                results[str(code)] = (row['price'], row['change_pct'] if 'change_pct' in row.keys() else 0)
+        db.close()
+    except Exception:
+        pass
+    return results
     """最新一次市场快照（含板块数据）"""
     snap = conn.execute(
         "SELECT * FROM market_snapshots ORDER BY id DESC LIMIT 1").fetchone()