fix: market_screener market.json→DB, remove all JSON refs

market_screener.py

@@ -7,8 +7,7 @@ from pathlib import Path
 
 WEB_DASHBOARD_DIR = Path(__file__).resolve().parent.parent.parent / "web-dashboard" if "hermes" in str(Path(__file__).resolve()) else Path(__file__).parent
 DATA_DIR = WEB_DASHBOARD_DIR / "data"
-MARKET_JSON = DATA_DIR / "market.json"
-POOL_JSON = DATA_DIR / "candidate_pool.json"
+POOL_JSON = DATA_DIR / "candidate_pool.json"  # 筛选缓存（临时）
 XIAOGUO_MODEL = "Qwen3.6-27B-OptiQ-4bit"
 API_TIMEOUT = 60
 MAX_SECTORS = 5
@@ -208,10 +207,40 @@ def step2(sector, source):
 
 
 def main():
-    market = load_json(MARKET_JSON)
-    if not market or not market.get("sectors"):
-        print("market.json 无数据", flush=True); return
-    sectors, source = market["sectors"], market.get("source", "ths")
+    # 从 DB 读大盘+板块数据（替代 market.json）
+    from mofin_db import get_conn
+    conn = get_conn()
+    market = {"sectors": [], "source": "db"}
+    try:
+        # latest snapshot
+        sr = conn.execute("SELECT * FROM market_snapshots ORDER BY id DESC LIMIT 1").fetchone()
+        if sr:
+            cols = [d[0] for d in conn.execute("SELECT * FROM market_snapshots LIMIT 0").description]
+            snap = dict(zip(cols, sr))
+            market["up_ratio"] = snap.get("up_ratio", 0)
+            market["mood"] = snap.get("mood", "neutral")
+            market["source"] = snap.get("source", "db")
+        
+        # sector data
+        sectors = conn.execute("""
+            SELECT s.name as name, s.change_pct as change_pct, s.lead_stock as lead_stock,
+                   s.up_count, s.down_count, s.net_inflow
+            FROM sector_snapshots s
+            JOIN market_snapshots ms ON s.snapshot_id = ms.id
+            WHERE ms.id = (SELECT MAX(id) FROM market_snapshots)
+            ORDER BY s.change_pct DESC
+        """).fetchall()
+        if sectors:
+            cols = [d[0] for d in conn.execute("SELECT name, change_pct, lead_stock, up_count, down_count, net_inflow FROM sector_snapshots LIMIT 0").description]
+            market["sectors"] = [dict(zip(cols, r)) for r in sectors]
+    except Exception as e:
+        print(f"DB read error: {e}", flush=True)
+    conn.close()
+
+    if not market.get("sectors"):
+        print("market 无数据", flush=True); return
+    sectors = market["sectors"]
+    source = market.get("source", "db")
     print(f"板块: {len(sectors)}, 来源: {source}", flush=True)
     pool = load_pool()
     existing = {c["code"] for c in pool.get("candidates", []) if not c.get("dropped")}
@@ -229,7 +258,8 @@ def main():
     hot_names = [s["name"] for s in view.get("hot_sectors", [])]
     print(f"热门行业: {hot_names}", flush=True)
     if not hot_names:
-        save_pool(pool); save_json(MARKET_JSON, market); return
+        save_pool(pool)
+        return
 
     # 第2步
     hot_data = [s for s in sectors if s.get("name", "") in hot_names][:MAX_SECTORS]
@@ -247,7 +277,6 @@ def main():
 
     cleanup(pool)
     save_pool(pool)
-    save_json(MARKET_JSON, market)
     print(f"完成: 新增{new_count}, 池内{pool['total_candidates']}活跃", flush=True)
 
 if __name__ == "__main__":