import path from 'path';
import fs from 'fs/promises';

import { bytesToBase64, digest } from '@tornado/core';

const src = [
    'node_modules/@tornado/core/dist/tornado.umd.js',
    'node_modules/@tornado/core/dist/tornado.umd.min.js',
    'node_modules/@tornado/core/dist/tornadoContracts.umd.js',
    'node_modules/@tornado/core/dist/tornadoContracts.umd.min.js',
    'node_modules/@tornado/core/dist/merkleTreeWorker.umd.js',
    'node_modules/@tornado/core/dist/merkleTreeWorker.umd.min.js',
];

async function copyFiles() {
    for (const file of src) {
        const dst = path.join('static', path.basename(file));
        await fs.copyFile(file, dst);
        console.log(`Copied ${file} to ${dst}`);
    }
}

async function content(file: string) {
    const content = new Uint8Array(await fs.readFile(file));

    const hash = 'sha384-' + bytesToBase64(await digest(content));

    console.log(`${hash}: ${file}`);

    return hash;
}

async function update() {
    await copyFiles();

    const staticFiles = await fs.readdir('static', { recursive: true });

    const hashes = {} as {
        [key: string]: string;
    };

    for (const filePath of staticFiles) {
        const file = path.join('static', filePath).replaceAll(path.sep, path.posix.sep);

        if ((await fs.stat(file)).isDirectory() || file.includes('hashes.json')) {
            continue;
        }

        const hash = await content(file);

        hashes[file] = hash;
    }

    await fs.writeFile('static/hashes.json', JSON.stringify(hashes, null, 2));
}
update();