102 lines
3.4 KiB
Python
102 lines
3.4 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""regime_gate.py — 温区门控共享工具（2026-08-13）
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scanner/重评统一调用：读取当前温区（优先平滑 K=5，回退原始 market_regime），
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判断某策略是否在当前温区激活。
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用法：
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from regime_gate import get_current_regime, is_strategy_active, strategy_enabled
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rg = get_current_regime() # {"regime": "trend_down", "date": "..."}
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ok = is_strategy_active("v_weak") # 该策略是否当前温区激活（读 strategy_weights.json）
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"""
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import json
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import sqlite3
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from pathlib import Path
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MOFIN_DATA = "/home/hmo/MoFin/data"
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WEIGHTS_FILE = Path(MOFIN_DATA) / "strategy_weights.json"
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SMOOTHED_FILE = Path(MOFIN_DATA) / "market_regime_smoothed.json"
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DB = Path(MOFIN_DATA) / "mofin.db"
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_cache_regime = None
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_cache_weights = None
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def get_current_regime(use_smoothed=True):
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"""读取当前温区。优先平滑(K=5)，回退原始 market_regime。返回 {"regime","date"}"""
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global _cache_regime
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if _cache_regime:
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return _cache_regime
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# 1. 平滑温区（regime_tracker K=5）
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if use_smoothed:
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try:
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if SMOOTHED_FILE.exists():
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d = json.loads(SMOOTHED_FILE.read_text(encoding="utf-8"))
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_cache_regime = {
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"regime": d.get("current_regime", "unknown"),
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"date": d.get("current_date", ""),
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}
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return _cache_regime
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except Exception:
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pass
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# 2. 原始 market_regime 表（A股——2026-08-14 表加 market 列后必须过滤，
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# 否则 ORDER BY date DESC LIMIT 1 可能读到港股行当 A 股温区）
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try:
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conn = sqlite3.connect(str(DB), timeout=30)
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conn.execute("PRAGMA busy_timeout=30000")
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row = conn.execute(
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"SELECT date, regime FROM market_regime WHERE market='a' ORDER BY date DESC LIMIT 1"
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).fetchone()
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conn.close()
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if row:
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_cache_regime = {"regime": row[1], "date": row[0]}
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return _cache_regime
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except Exception:
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pass
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return {"regime": "unknown", "date": ""}
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def _load_weights():
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"""读取 strategy_weights.json（缓存）"""
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global _cache_weights
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if _cache_weights is not None:
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return _cache_weights
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try:
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if WEIGHTS_FILE.exists():
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_cache_weights = json.loads(WEIGHTS_FILE.read_text(encoding="utf-8"))
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return _cache_weights
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except Exception:
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pass
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_cache_weights = {}
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return _cache_weights
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def is_strategy_active(strategy_name):
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"""该策略是否在当前温区激活（matched）。无数据默认激活"""
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w = _load_weights()
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if not w or not w.get("weights"):
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return True
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entry = w["weights"].get(strategy_name)
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if entry is None:
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return True # 不在权重表 → 默认激活（持仓管理类）
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return entry.get("matched", True)
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def strategy_enabled(strategy_name):
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"""该策略权重>0（激活 + 非0乘数）"""
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w = _load_weights()
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if not w or not w.get("weights"):
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return True
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entry = w["weights"].get(strategy_name)
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if entry is None:
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return True
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return entry.get("weight", 0) > 0
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if __name__ == "__main__":
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rg = get_current_regime()
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print(f"当前温区: {rg['regime']} ({rg['date']})")
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for s in ["v_weak", "v_oversold", "v_next4", "s2_panic", "v_mr_sel"]:
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print(f" {s}: active={is_strategy_active(s)} enabled={strategy_enabled(s)}")
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