import RNArch from 'rnarch';

// recommended to use this library with document picker.
// https://docs.expo.dev/versions/latest/sdk/document-picker/

// with document picker
// const { assets, canceled } = await DocumentPicker.getDocumentAsync();
// archivePath = assets[0].uri;
// directoryPath = FileSystem.cacheDirectory + (/[\\\/]$/.test(FileSystem.cacheDirectory) ? "" : "/") + Date.now();

const archivePath = 'file://...PATH.../Library/Caches/ARCHIVE.zip';
const directoryPath = 'file://...PATH.../Library/Caches/DESTINATION';
await RNArch.exec(archivePath, directoryPath);

// read extracted files with expo.FileSystem
// https://docs.expo.dev/versions/latest/sdk/filesystem/
async function readDir(dirPath) {
  let result = [];
  for (const file of await FileSystem.readDirectoryAsync(dirPath)) {
    if ((await FileSystem.getInfoAsync(dirPath + "/" + file)).isDirectory) {
      result.push(...(await readDir(dirPath + "/" + file)))
    } else {
      result.push(dirPath + "/" + file);
    }
  }
  return result;
}

const files = await readDir(directoryPath);
// [...];