#!/usr/bin/env python3
"""
branch_scanner.py — 盘中分支扫描器

每15分钟跑一轮：
1. 读取所有有 strategy_tree 的股票
2. 获取实时价格
3. 评估每个分支在当前情景下是否适用
4. 适用分支 → 记录 trigger_count + 推送信号

自成长核心组件：让分支条件得到实际验证。
"""

import json, sys, os, re
from datetime import datetime, date
from urllib.request import Request, urlopen

DECISIONS_PATH = "/home/hmo/web-dashboard/data/decisions.json"
WATCHLIST_PATH = "/home/hmo/web-dashboard/data/watchlist.json"
MACRO_PATH = "/home/hmo/web-dashboard/data/macro_context.json"
EVENTS_PATH = "/home/hmo/web-dashboard/data/price_events.json"
XMPP_URL = "http://127.0.0.1:5805/"


def get_price(code):
    """腾讯API实时价格"""
    mkt = "sh" if code.startswith("6") or code.startswith("5") else "sz"
    url = f"http://qt.gtimg.cn/q={mkt}{code}"
    req = Request(url, headers={"User-Agent": "Mozilla/5.0"})
    try:
        resp = urlopen(req, timeout=5).read().decode("gbk")
        parts = resp.split("~")
        if len(parts) > 3:
            return float(parts[3])
    except Exception:
        pass
    return None


def get_scenario():
    """读当前情景"""
    try:
        sys.path.insert(0, "/home/hmo/MoFin")
        from strategy_tree import detect_scenario
        return detect_scenario()
    except Exception:
        return {"id": "unknown", "label": "未知", "confidence": 0}


def load_decisions():
    try:
        with open(DECISIONS_PATH) as f:
            return json.load(f)
    except Exception:
        return {"decisions": []}


def save_decisions(data):
    with open(DECISIONS_PATH, "w") as f:
        json.dump(data, f, indent=2, ensure_ascii=False)


def check_condition(branch, scenario_id, price):
    """检查分支条件是否满足"""
    cond = branch.get("condition", {})
    required_scenario = cond.get("scenario", "")
    if required_scenario and required_scenario != scenario_id:
        return False

    price_cond = cond.get("price", "")
    if price_cond and price:
        ops = re.findall(r"([<>=!]+)\s*([\d.]+)", price_cond)
        for op, val_str in ops:
            val = float(val_str)
            if op == "<" and not (price < val): return False
            if op == ">" and not (price > val): return False
            if op == "<=" and not (price <= val): return False
            if op == ">=" and not (price >= val): return False
    return True


def push_alert(msg):
    try:
        payload = json.dumps({"to": "hmo@yoin.fun", "body": msg, "type": "chat"}).encode()
        urlopen(XMPP_URL, data=payload, timeout=3)
    except Exception:
        pass


def main():
    now = datetime.now()
    today = now.strftime("%Y-%m-%d")
    hour = now.hour

    # 盘后才扫无意义
    if hour < 9 or hour > 16:
        print("SILENT: 非交易时段")
        return 0

    scenario = get_scenario()
    sid = scenario.get("id", "unknown")
    data = load_decisions()
    decisions = data.get("decisions", [])

    triggered = []
    for entry in decisions:
        code = entry.get("code", "")
        tree = entry.get("strategy_tree", {})
        branches = tree.get("branches", [])
        if not branches:
            continue

        price = get_price(code)
        if not price:
            continue

        for br in branches:
            if check_condition(br, sid, price):
                br["trigger_count"] = br.get("trigger_count", 0) + 1
                br["last_triggered"] = today
                triggered.append((code, entry.get("name", ""), br))

    if triggered:
        save_decisions(data)
        print(f"[SCAN] {now.strftime('%H:%M')} 情景={sid} | {len(triggered)}个分支被触发")

        # 推送重要触发
        alerts = []
        for code, name, br in triggered:
            action = br.get("action", {})
            action_type = action.get("type", "hold")
            priority = br.get("priority", 99)
            rationale = br.get("rationale", "")
            count = br.get("trigger_count", 1)
            if action_type != "hold":
                alerts.append(f"  {code} {name}: {action_type}（{rationale}）触发{count}次")

        if alerts:
            msg = f"【分支扫描】{now.strftime('%H:%M')} | 情景{sid}\n" + "\n".join(alerts)
            push_alert(msg)
    else:
        print(f"[SCAN] {now.strftime('%H:%M')} | 情景{sid} | 无触发")

    return 0


if __name__ == "__main__":
    sys.exit(main())