from __future__ import annotations

import json
import os
from http import HTTPStatus
from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer


class HealthHandler(BaseHTTPRequestHandler):
    def do_GET(self) -> None:
        if self.path != "/health":
            self.send_error(HTTPStatus.NOT_FOUND)
            return

        body = json.dumps({"service": "runner", "status": "ok"}).encode("utf-8")
        self.send_response(HTTPStatus.OK)
        self.send_header("Content-Type", "application/json")
        self.send_header("Content-Length", str(len(body)))
        self.end_headers()
        self.wfile.write(body)

    def log_message(self, format: str, *args: object) -> None:
        return


def run() -> None:
    port = int(os.environ.get("PORT", "8010"))
    server = ThreadingHTTPServer(("0.0.0.0", port), HealthHandler)
    server.serve_forever()


if __name__ == "__main__":
    run()