#!/usr/bin/env python3
"""Service backend minimal untuk latihan reverse proxy.

Menyajikan satu endpoint GET yang melaporkan nama service, warna,
dan path yang diminta — cukup untuk membuktikan routing nginx
dan pembuangan prefix oleh proxy_pass.
"""

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

SERVICE_NAME = os.environ.get("SERVICE_NAME", "service-a")
SERVICE_COLOR = os.environ.get("SERVICE_COLOR", "biru")


class Handler(BaseHTTPRequestHandler):
    def do_GET(self):
        payload = json.dumps(
            {"service": SERVICE_NAME, "color": SERVICE_COLOR, "path": self.path}
        ) + "\n"
        body = payload.encode()
        self.send_response(200)
        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, fmt, *args):
        print(
            "%s - - [%s] %s"
            % (self.address_string(), self.log_date_time_string(), fmt % args),
            flush=True,
        )


if __name__ == "__main__":
    ThreadingHTTPServer(("0.0.0.0", 8080), Handler).serve_forever()