# -*- coding: utf-8 -*-
"""Shared helpers for the QMT gate scripts (qmt_sentinel.py / qmt_probe_0915.py).

Design: scripts judge AVAILABILITY (process + bridge RPC + counter behaviour),
agents/humans judge CORRECTNESS (cash baseline drift is recorded, never red).
Audit trail: C:\\sanguo_bigqmt\\gate\\qmt_gate_YYYYMMDD.log (append) +
qmt_gate_latest.json (overwrite status light).
"""
import datetime
import json
import re
import subprocess

ACCOUNT = "66639661"
GATE_DIR = r"C:\sanguo_bigqmt\gate"
RELOGIN_TASK = "sanguo-qmt-relogin"
QMT_PROCS = ("XtItClient.exe", "XtMiniQmt.exe", "miniquote.exe")


def now_str():
    return datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")


def gate_log(kind, verdict, msg):
    line = "%s [%s] %s %s" % (now_str(), kind, verdict, msg)
    try:
        import os
        os.makedirs(GATE_DIR, exist_ok=True)
        path = r"%s\qmt_gate_%s.log" % (
            GATE_DIR, datetime.datetime.now().strftime("%Y%m%d"))
        with open(path, "a", encoding="utf-8") as f:
            f.write(line + "\n")
    except Exception as exc:
        line += " (log-write-failed %r)" % exc
    print(line, flush=True)
    return line


def gate_json(kind, verdict, **detail):
    import os
    payload = {"ts": now_str(), "kind": kind, "verdict": verdict}
    payload.update(detail)
    try:
        os.makedirs(GATE_DIR, exist_ok=True)
        with open(r"%s\qmt_gate_latest.json" % GATE_DIR, "w",
                  encoding="utf-8") as f:
            json.dump(payload, f, ensure_ascii=False, default=str, indent=1)
    except Exception as exc:
        print("GATE_JSON_WRITE_FAIL %r" % exc, flush=True)
    return payload


def redis_client():
    import redis
    with open(r"C:\redis\redis.conf") as f:
        pw = re.search(r"^requirepass (\S+)", f.read(), re.M).group(1)
    return redis.Redis(host="127.0.0.1", port=6379, db=5, password=pw,
                       socket_connect_timeout=5, decode_responses=True)


def bridge_ping(rc, timeout=10):
    """(up, detail) — up means the RPC server answered ping with ok+pong."""
    from bigqmt_signal_trader.redis_rpc import call_redis_rpc
    try:
        r = call_redis_rpc(rc, ACCOUNT, "ping", {}, timeout_seconds=timeout)
    except Exception as exc:
        return False, "RPC_DOWN %s %s" % (type(exc).__name__, str(exc)[:120])
    if not isinstance(r, dict):
        return False, "RPC_BAD %r" % (r,)
    if not r.get("ok"):
        return False, "RPC_ERR %s" % str(r.get("error") or r)[:150]
    d = r.get("data") or {}
    if not d.get("pong"):
        return False, "RPC_NO_PONG %s" % str(d)[:150]
    return True, "server_time=%s rev=%s allow_order=%s" % (
        d.get("server_time"), d.get("rpc_revision"), d.get("allow_order_methods"))


def procs_alive():
    """QMT family process presence via tasklist (no psutil dependency)."""
    out = subprocess.run(["tasklist", "/FO", "CSV", "/NH"],
                         capture_output=True, text=True, timeout=30).stdout or ""
    return {name: ('"%s"' % name) in out for name in QMT_PROCS}


def relogin_running():
    """True if the v2 relogin python is mid-flight (avoid double trigger)."""
    try:
        import psutil
    except ImportError:
        return False
    for p in psutil.process_iter(["pid", "name", "cmdline"]):
        try:
            if "python" not in (p.info["name"] or "").lower():
                continue
            cmd = " ".join(p.info["cmdline"] or [])
        except Exception:
            continue
        if "qmt_relogin.py" in cmd:
            return True
    return False


def trigger_relogin():
    r = subprocess.run(["schtasks", "/run", "/tn", RELOGIN_TASK],
                       capture_output=True, text=True, timeout=30)
    ok = r.returncode == 0
    return ok, ((r.stdout or "") + (r.stderr or "")).strip()[:120]


def wait_bridge(rc, timeout_sec, kind):
    """Poll bridge ping until it answers; every probe logged once at the end."""
    import time
    t0 = time.time()
    last = ""
    while time.time() - t0 < timeout_sec:
        up, detail = bridge_ping(rc)
        if up:
            return True, int(time.time() - t0), detail
        last = detail
        time.sleep(5)
    return False, int(time.time() - t0), last