#!/usr/bin/env python3
"""模拟定时业务任务：记录每次执行时间与序号。"""

from __future__ import annotations

import json
import os
import socket
import time
from datetime import datetime, timezone
from pathlib import Path


def main() -> None:
    run_id = os.environ.get("GITHUB_RUN_ID") or os.environ.get("GITEA_RUN_ID") or "local"
    job = os.environ.get("GITHUB_JOB") or "manual"
    host = socket.gethostname()
    now = datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ")
    ts = int(time.time())

    out_dir = Path(os.environ.get("TASK_OUT_DIR") or "artifacts")
    out_dir.mkdir(parents=True, exist_ok=True)
    record = {
        "run_id": run_id,
        "job": job,
        "host": host,
        "utc": now,
        "epoch": ts,
        "message": f"task ok at {now} on {host}",
    }
    path = out_dir / f"run-{run_id}-{job}-{ts}.json"
    path.write_text(json.dumps(record, ensure_ascii=False, indent=2) + "\n", encoding="utf-8")
    print(json.dumps(record, ensure_ascii=False))
    print(f"wrote {path}")


if __name__ == "__main__":
    main()