#!/usr/bin/env bun
import plugin from 'bun-plugin-tailwind';
import { existsSync } from 'fs';
import { rm } from 'fs/promises';
import path from 'path';

const outdir = path.join(process.cwd(), 'dist_landing');

if (existsSync(outdir)) {
  console.log(`🗑️ Cleaning previous build at ${outdir}`);
  await rm(outdir, { recursive: true, force: true });
}

console.log('\n🚀 Starting landing page build...\n');

const start = performance.now();

const entrypoints = [...new Bun.Glob('**.html').scanSync('src/apps/landing')]
  .map((a) => path.resolve('src/apps/landing', a))
  .filter((dir) => !dir.includes('node_modules'));
console.log(`📄 Found ${entrypoints.length} HTML ${entrypoints.length === 1 ? 'file' : 'files'} to process\n`);

const formatFileSize = (bytes: number): string => {
  const units = ['B', 'KB', 'MB', 'GB'];
  let size = bytes;
  let unitIndex = 0;
  while (size >= 1024 && unitIndex < units.length - 1) {
    size /= 1024;
    unitIndex++;
  }
  return `${size.toFixed(2)} ${units[unitIndex]}`;
};

const result = await Bun.build({
  entrypoints,
  outdir,
  plugins: [plugin],
  minify: true,
  target: 'browser',
  sourcemap: 'linked',
  define: {
    'process.env.NODE_ENV': JSON.stringify('production'),
  },
});

const end = performance.now();

const outputTable = result.outputs.map((output) => ({
  File: path.relative(process.cwd(), output.path),
  Type: output.kind,
  Size: formatFileSize(output.size),
}));

console.table(outputTable);
console.log(`\n✅ Build completed in ${(end - start).toFixed(2)}ms\n`);