const JSZip = require("jszip");
const fs = require("fs");
const path = require("path");

async function unzip(file, dir) {
	const sep = process.platform === "darwin" ? "/" : "\\";
	const fileContent = fs.readFileSync(file);

	const jszip = new JSZip();
	const result = await jszip.loadAsync(fileContent);
	const keys = Object.keys(result.files);

	for (let key of keys) {
		const item = result.files[key];

		if (item.dir) {
			if (!fs.existsSync(dir + item.name.replace("/", sep))) {
				await fs.promises.mkdir(dir + item.name.replace("/", sep), {
					recursive: true,
				});
			}
		} else {
			let dirname = path.dirname(dir + item.name.replace("/", sep));
			if (!fs.existsSync(dirname)) {
				await fs.promises.mkdir(dirname, { recursive: true });
			}
			await fs.promises.writeFile(
				dir + item.name.replace("/", sep),
				Buffer.from(await item.async("arraybuffer"))
			);
		}
	}
}

module.exports = {
	unzip,
};