import { S3Client, ListObjectsV2Command, GetObjectCommand } from '@aws-sdk/client-s3';
import fs from 'fs';
import path from 'path';
import { fileURLToPath } from 'url';

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

const s3 = new S3Client({
  endpoint: 'https://storageedu.microtecinformaticacurso.com.br:443',
  region: 'us-east-1',
  credentials: {
    accessKeyId: 'minioadmin',
    secretAccessKey: 'MiniO2026!Seguro'
  },
  forcePathStyle: true,
  tls: false // Disable SSL verification for self-signed certs
});

process.env.NODE_TLS_REJECT_UNAUTHORIZED = '0';

async function run() {
  const destDir = path.join(__dirname, 'photos');
  if (!fs.existsSync(destDir)) {
    fs.mkdirSync(destDir, { recursive: true });
  }

  try {
    console.log('Listando objetos no bucket fotos-alunos...');
    const listCommand = new ListObjectsV2Command({
      Bucket: 'fotos-alunos'
    });
    const listResponse = await s3.send(listCommand);
    const objects = listResponse.Contents || [];
    console.log(`Encontrados ${objects.length} objetos.`);

    for (const obj of objects) {
      if (!obj.Key) continue;
      console.log(`Baixando ${obj.Key}...`);
      const getCommand = new GetObjectCommand({
        Bucket: 'fotos-alunos',
        Key: obj.Key
      });
      const getResponse = await s3.send(getCommand);
      const stream = getResponse.Body;
      if (stream) {
        const destPath = path.join(destDir, obj.Key);
        const fileStream = fs.createWriteStream(destPath);
        // Convert web stream / readable stream to local file
        const buffer = await stream.transformToByteArray();
        fs.writeFileSync(destPath, buffer);
        console.log(`Salvo em ${destPath}`);
      }
    }
    console.log('Download concluído!');
  } catch (err) {
    console.error('Erro:', err);
  }
}

run();