const BACKEND_URL = process.env.BACKEND_URL || 'http://localhost:3001';

async function main() {
  console.log('\n--- NAS Backend API Test ---');
  console.log(`Backend: ${BACKEND_URL}\n`);

  console.log('[1] Health check...');
  try {
    const res = await fetch(`${BACKEND_URL}/api/health`);
    if (!res.ok) throw new Error(`HTTP ${res.status}`);
    const data = await res.json();
    console.log(`    Status: ${data.status}, connections: ${data.activeConnections}, photo dir: ${data.defaultPhotoDir}\n`);
  } catch (err) {
    console.log(`    Failed: ${err.message}`);
    console.log('    Start the backend first: cd ServerFiles && node server.js\n');
    process.exit(1);
  }

  const host = process.env.NAS_HOST;
  const port = parseInt(process.env.NAS_PORT || '22', 10);
  const username = process.env.NAS_USER;
  const password = process.env.NAS_PASS;
  const folder = process.env.NAS_FOLDER || '/home/user/photos';

  if (!host || !username || !password) {
    console.log('[2-4] Skipped — set NAS_HOST, NAS_USER, NAS_PASS to run connection tests.\n');
    console.log('--- Tests complete (partial) ---\n');
    return;
  }

  let connectionToken = null;
  console.log(`[2] SFTP connect to ${host}:${port}...`);
  try {
    const res = await fetch(`${BACKEND_URL}/api/sftp/connect`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ host, port, username, password }),
    });
    if (!res.ok) throw new Error(`HTTP ${res.status}: ${await res.text()}`);
    const data = await res.json();
    if (!data.success) throw new Error(data.error || 'Connect failed');
    connectionToken = data.connectionToken;
    console.log(`    Connected.\n`);
  } catch (err) {
    console.log(`    Failed: ${err.message}\n`);
    process.exit(1);
  }

  const authHeaders = {
    'Content-Type': 'application/json',
    Authorization: `Bearer ${connectionToken}`,
  };

  console.log(`[3] List directory "${folder}"...`);
  try {
    const res = await fetch(`${BACKEND_URL}/api/sftp/list`, {
      method: 'POST',
      headers: authHeaders,
      body: JSON.stringify({ path: folder }),
    });
    if (!res.ok) throw new Error(`HTTP ${res.status}: ${await res.text()}`);
    const data = await res.json();
    console.log(`    Found ${data.count || 0} items in ${data.path}`);
    (data.files || []).slice(0, 5).forEach((f, i) => {
      console.log(`    ${i + 1}. ${f.name} ${f.isDirectory ? '(dir)' : `(${f.size} bytes)`}`);
    });
    console.log();
  } catch (err) {
    console.log(`    Failed: ${err.message}\n`);
  }

  console.log('[4] Disconnect...');
  try {
    const res = await fetch(`${BACKEND_URL}/api/sftp/disconnect`, {
      method: 'POST',
      headers: authHeaders,
    });
    if (!res.ok) throw new Error(`HTTP ${res.status}`);
    const data = await res.json();
    console.log(`    ${data.message}\n`);
  } catch (err) {
    console.log(`    Failed: ${err.message}\n`);
  }

  console.log('--- Tests complete ---\n');
}

main().catch((err) => {
  console.error('Unhandled error:', err);
  process.exit(1);
});