#!/usr/bin/env python3
"""sync_db_to_json.py — 将DB数据同步回JSON文件（反向同步）

DB是权威源，JSON文件是只读的兼容层。
每15分钟将DB中的决策数据写到decisions.json。
"""
import json, sys
from pathlib import Path
sys.path.insert(0, str(Path(__file__).parent.parent))
sys.path.insert(0, "/home/hmo/MoFin")

DECISIONS_PATH = "/home/hmo/web-dashboard/data/decisions.json"

try:
    from mo_data import read_decisions, read_portfolio, read_watchlist
    decisions = read_decisions()
    portfolio = read_portfolio()
    watchlist = read_watchlist()
    
    with open(DECISIONS_PATH, "w") as f:
        json.dump(decisions, f, ensure_ascii=False, indent=2)
    
    cnt = len(decisions.get("decisions", []))
    print(f"[SILENT] decisions.json updated: {cnt} entries from DB")
except Exception as e:
    print(f"[SILENT] sync failed: {e}")