import { resolve } from 'node:path';
import { pathToFileURL } from 'node:url';
import { checkRenderedOutput } from './lib/rendered-output.mjs';

async function main() {
  const distRoot = process.argv[2] ?? 'dist';
  const result = await checkRenderedOutput({ distRoot });
  const issues = [
    ...result.headingIssues.map(({ file, h1Count }) => `${file} contains ${h1Count} H1 headings; expected exactly 1`),
    ...result.unpublishedPaths.map((path) => `unpublished to-be-studied path reached built output: ${path}`),
  ];

  if (issues.length > 0) {
    throw new Error(`Rendered-output check failed with ${issues.length} issue(s):\n${issues.map((issue) => `- ${issue}`).join('\n')}`);
  }

  console.log(`Rendered-output check passed: ${result.htmlFilesChecked} published pages, exactly one H1 each, no to-be-studied paths.`);
}

const invokedPath = process.argv[1] ? pathToFileURL(resolve(process.argv[1])).href : '';
if (invokedPath === import.meta.url) {
  main().catch((error) => {
    console.error(error.message);
    process.exitCode = 1;
  });
}