import {spawnSync} from 'node:child_process';
import {fileURLToPath} from 'node:url';

const viteCliPath = fileURLToPath(new URL('./vite-cli.mjs', import.meta.url));
const adminWebBuildPath = fileURLToPath(new URL('./admin-web-build.mjs', import.meta.url));
const forwardedArgs = process.argv.slice(2);

const results = [
  runBuildStep('web', [viteCliPath, 'build', ...forwardedArgs]),
  runBuildStep('admin-web', [adminWebBuildPath, 'build']),
];

const failedResult = results.find(result => result.error || result.signal || (result.status ?? 0) !== 0);
if (failedResult) {
  if (failedResult.error) {
    console.error(`Build gate failed to start a build step: ${failedResult.error.message}`);
  } else if (failedResult.signal) {
    console.error(`Build gate step was terminated by signal ${failedResult.signal}`);
  }
  process.exit(failedResult.status ?? 1);
}

const warningLines = results.flatMap((result) => collectWarningLines(result));

if (warningLines.length > 0) {
  console.error('Build gate failed because warnings were emitted:');
  [...new Set(warningLines)].forEach(line => console.error(`- ${line}`));
  process.exit(1);
}

function runBuildStep(label, args) {
  console.log(`[build-gate] ${label}`);
  const result = spawnSync(process.execPath, args, {
    cwd: process.cwd(),
    encoding: 'utf8',
  });

  if (result.stdout) {
    process.stdout.write(result.stdout);
  }

  if (result.stderr) {
    process.stderr.write(result.stderr);
  }

  return result;
}

function collectWarningLines(result) {
  const warningPattern = /\bwarn(?:ing)?\b/i;
  const ignoredWarningPatterns = [
    /ExperimentalWarning/u,
  ];

  return `${result.stdout ?? ''}\n${result.stderr ?? ''}`
    .split(/\r?\n/u)
    .map(line => line.trim())
    .filter(line => line.length > 0)
    .filter(line => warningPattern.test(line))
    .filter(line => !ignoredWarningPatterns.some(pattern => pattern.test(line)));
}