#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
loop.py — cloud runner for confluence-agent on Hugging Face Spaces (Docker).

- HF ke liye ek chhota health-check HTTP server PORT (7860) pe (warna Space "running"
  nahi maana jata).
- Phir har CYCLE_SECONDS (default 900 = 15m) pe agent.main() chalata hai (Telegram alerts).
  Har cycle exception-safe; ek cycle fail ho to agla normally chalega.
Telegram creds env se: TG_TOKEN, TG_CHAT_ID (Space secrets).
"""
import os
import time
import threading
import traceback
from datetime import datetime, timezone
from http.server import BaseHTTPRequestHandler, HTTPServer

import agent  # agent.py (same dir)

INTERVAL = int(os.getenv("CYCLE_SECONDS", "900"))  # 15 min
PORT = int(os.getenv("PORT", "7860"))

_last = {"ts": None, "ok": None}


class Ping(BaseHTTPRequestHandler):
    def do_GET(self):
        self.send_response(200)
        self.send_header("Content-Type", "text/plain")
        self.end_headers()
        msg = f"confluence-agent running\nlast_cycle={_last['ts']} ok={_last['ok']}\n"
        self.wfile.write(msg.encode())

    def log_message(self, *args):
        pass


def start_http():
    HTTPServer(("0.0.0.0", PORT), Ping).serve_forever()


def main():
    threading.Thread(target=start_http, daemon=True).start()
    print(f"[loop] health server on :{PORT}; cycle every {INTERVAL}s", flush=True)
    while True:
        t0 = time.time()
        try:
            agent.main()
            _last["ok"] = True
        except Exception:
            _last["ok"] = False
            print("[loop] CYCLE ERROR:\n" + traceback.format_exc(), flush=True)
        _last["ts"] = datetime.now(timezone.utc).strftime("%Y-%m-%d %H:%M UTC")
        dt = time.time() - t0
        sleep_s = max(30, INTERVAL - dt)
        print(f"[loop] cycle took {dt:.0f}s; sleeping {sleep_s:.0f}s", flush=True)
        time.sleep(sleep_s)


if __name__ == "__main__":
    main()