import { BaseRunner } from './classes.baserunner.ts';

export async function runCli(argsArg: string[]) {
  const command = argsArg[0] || 'start';
  const runner = BaseRunner.fromEnv();

  if (command === 'start') {
    await runner.start();
    await new Promise(() => undefined);
    return;
  }

  if (command === 'status') {
    await printJson(await runner.getRuntimeInfo());
    return;
  }

  if (command === 'check-supervisor') {
    await printJson({
      configured: runner.supervisorClient.isConfigured(),
      available: await runner.supervisorClient.isAvailable(),
      address: runner.supervisorClient.address,
    });
    return;
  }

  if (command === 'request-update') {
    await runner.requestSelfUpdate({ force: argsArg.includes('--force') });
    await printJson({ ok: true });
    return;
  }

  if (command === 'help' || command === '--help' || command === '-h') {
    printHelp();
    return;
  }

  console.error(`Unknown command: ${command}`);
  printHelp();
  Deno.exit(1);
}

async function printJson(dataArg: unknown) {
  await Deno.stdout.write(new TextEncoder().encode(`${JSON.stringify(dataArg, null, 2)}\n`));
}

function printHelp() {
  console.log(`BaseRunner commands:

  start              Start BaseRunner and keep the process alive
  status             Print runtime, supervisor, and Cloudly connection status
  check-supervisor   Check whether the Balena Supervisor API is available
  request-update     Ask the Balena Supervisor to check/apply app release updates
  help               Show this help text
`);
}