#!/usr/bin/env node
const DecryptorV4 = require("./src/crypto/DecryptorV4");
const fs = require("fs");

if (process.argv.length < 5) {
  console.info(
    "Usage: %s <uuidv2> <encrypted_path> <decrypted_path>",
    process.argv[1]
  );
  return;
}

const [, , uuid, inputPath, outputPath] = process.argv;
const inputBuffer = fs.readFileSync(inputPath);
const decryptor = new DecryptorV4(uuid);
const result = decryptor.decryptFile(inputBuffer);
const outputHandle = fs.openSync(outputPath, "w");

for (const block of result) {
  fs.writeSync(outputHandle, block);
}