import { resolve } from 'node:path';
import { generateReferenceCompanionApps } from '../src/companion/index.js';

const DEFAULT_GENERATED_AT = '2026-02-27T00:00:00.000Z';

function getArg(name: string): string | undefined {
  const idx = process.argv.indexOf(name);
  if (idx < 0) {
    return undefined;
  }
  const value = process.argv[idx + 1];
  if (!value || value.startsWith('--')) {
    return undefined;
  }
  return value;
}

async function main(): Promise<void> {
  const outputDir = resolve(getArg('--output') ?? 'apps/companion');
  const gatewayUrl = getArg('--url') ?? 'ws://127.0.0.1:18800';
  const generatedAtArg = getArg('--generated-at');
  const generatedAt = new Date(generatedAtArg ?? DEFAULT_GENERATED_AT);
  if (Number.isNaN(generatedAt.getTime())) {
    throw new Error(`Invalid --generated-at value: ${generatedAtArg}`);
  }

  const result = await generateReferenceCompanionApps({
    outputDir,
    gatewayUrl,
    generatedAt,
  });

  console.log(`Generated companion reference apps in ${result.rootDir}`);
  for (const entry of result.generated) {
    console.log(`- ${entry.platform}: ${entry.outputDir}`);
  }
  console.log(`- macos-app: ${result.macosMenuBarAppDir}`);
  console.log(`- readme: ${result.readmePath}`);
  console.log(`- generatedAt: ${generatedAt.toISOString()}`);
}

main().catch((error: unknown) => {
  const message = error instanceof Error ? error.message : String(error);
  console.error(`companion:reference-apps failed: ${message}`);
  process.exitCode = 1;
});