import { mkdir, readdir } from "node:fs/promises";
import { join, parse } from "node:path";
import { fileURLToPath } from "node:url";
import sharp from "sharp";

const root = fileURLToPath(new URL("../public/catalog-products/", import.meta.url));

async function optimizeDirectory(sourceDirectory, targetDirectory, width) {
  const sourcePath = join(root, sourceDirectory);
  const targetPath = join(root, targetDirectory);
  await mkdir(targetPath, { recursive: true });
  const entries = await readdir(sourcePath, { withFileTypes: true });
  const imageEntries = entries.filter((entry) => entry.isFile() && /\.(?:jpe?g|png)$/i.test(entry.name));

  await Promise.all(imageEntries.map(async (entry) => {
    const filename = `${parse(entry.name).name}.webp`;
    await sharp(join(sourcePath, entry.name))
      .resize({ width, withoutEnlargement: true })
      .webp({ quality: 78, effort: 4 })
      .toFile(join(targetPath, filename));
  }));

  console.log(`${sourceDirectory} -> ${targetDirectory}: ${imageEntries.length} images`);
}

await optimizeDirectory("precision-gears/", "precision-gears-thumb/", 480);
await optimizeDirectory("source-main/", "source-main-thumb/", 640);