#!/usr/bin/env node

/**
 * Complete S3 Music Storage Test Script
 * Tests all aspects of the S3 music storage system
 */

import { S3Client, ListBucketsCommand, HeadBucketCommand } from '@aws-sdk/client-s3';

const S3_ENDPOINT = process.env.S3_ENDPOINT || 'http://localhost:9000';
const S3_ACCESS_KEY_ID = process.env.S3_ACCESS_KEY_ID || 'minioadmin';
const S3_SECRET_ACCESS_KEY = process.env.S3_SECRET_ACCESS_KEY || 'minioadmin';
const S3_BUCKET_NAME = process.env.S3_BUCKET_NAME || 'music-files';

console.log('🧪 Testing Complete S3 Music Storage Setup\n');

// Test 1: S3 Connection
async function testS3Connection() {
  console.log('1️⃣ Testing S3 Connection...');
  
  try {
    const s3Client = new S3Client({
      endpoint: S3_ENDPOINT,
      region: 'us-east-1',
      credentials: {
        accessKeyId: S3_ACCESS_KEY_ID,
        secretAccessKey: S3_SECRET_ACCESS_KEY,
      },
      forcePathStyle: true,
    });

    // Test connection
    await s3Client.send(new ListBucketsCommand({}));
    console.log('   ✅ S3 connection successful');
    
    // Test bucket access
    await s3Client.send(new HeadBucketCommand({ Bucket: S3_BUCKET_NAME }));
    console.log('   ✅ Bucket access verified');
    
    return true;
  } catch (error) {
    console.log('   ❌ S3 connection failed:', error.message);
    return false;
  }
}

// Test 2: Audio Metadata Service
async function testAudioMetadataService() {
  console.log('\n2️⃣ Testing Audio Metadata Service...');
  
  try {
    // Test supported formats (simple validation)
    const supportedFormats = ['mp3', 'wav', 'flac', 'm4a', 'aac'];
    const audioExtensions = ['.mp3', '.wav', '.flac', '.m4a', '.aac'];
    
    for (const format of supportedFormats) {
      const testFile = `test.${format}`;
      const extension = testFile.toLowerCase().substring(testFile.lastIndexOf('.'));
      const isSupported = audioExtensions.includes(extension);
      console.log(`   ${isSupported ? '✅' : '❌'} ${format.toUpperCase()} format: ${isSupported ? 'Supported' : 'Not supported'}`);
    }
    
    console.log('   ✅ Audio metadata service validation working');
    return true;
  } catch (error) {
    console.log('   ❌ Audio metadata service failed:', error.message);
    return false;
  }
}

// Test 3: Environment Variables
function testEnvironmentVariables() {
  console.log('\n3️⃣ Testing Environment Variables...');
  
  const requiredVars = [
    'S3_ENDPOINT',
    'S3_ACCESS_KEY_ID', 
    'S3_SECRET_ACCESS_KEY',
    'S3_BUCKET_NAME'
  ];
  
  let allPresent = true;
  
  for (const varName of requiredVars) {
    const value = process.env[varName];
    if (value) {
      console.log(`   ✅ ${varName}: ${varName.includes('SECRET') ? '***' : value}`);
    } else {
      console.log(`   ❌ ${varName}: Not set`);
      allPresent = false;
    }
  }
  
  return allPresent;
}

// Test 4: Port Availability
async function testPortAvailability() {
  console.log('\n4️⃣ Testing Port Availability...');
  
  const ports = [
    { port: 3000, service: 'Backend API' },
    { port: 5173, service: 'Frontend Dev Server' },
    { port: 9000, service: 'MinIO' },
    { port: 27017, service: 'MongoDB' }
  ];
  
  const net = await import('net');
  
  for (const { port, service } of ports) {
    try {
      const socket = new net.Socket();
      const isAvailable = await new Promise((resolve) => {
        socket.setTimeout(1000);
        socket.on('connect', () => {
          socket.destroy();
          resolve(false); // Port is in use
        });
        socket.on('timeout', () => {
          socket.destroy();
          resolve(true); // Port is available
        });
        socket.on('error', () => {
          resolve(true); // Port is available
        });
        socket.connect(port, 'localhost');
      });
      
      console.log(`   ${isAvailable ? '❌' : '✅'} Port ${port} (${service}): ${isAvailable ? 'Available' : 'In Use'}`);
    } catch (error) {
      console.log(`   ❌ Port ${port} (${service}): Error checking`);
    }
  }
}

// Test 5: API Endpoints
async function testAPIEndpoints() {
  console.log('\n5️⃣ Testing API Endpoints...');
  
  const endpoints = [
    { url: 'http://localhost:3000/api/health', name: 'Health Check' },
    { url: 'http://localhost:3000/api/songs', name: 'Songs API' },
    { url: 'http://localhost:3000/api/music/files', name: 'Music Files API' },
    { url: 'http://localhost:3000/api/matching/stats', name: 'Matching Stats API' }
  ];
  
  for (const { url, name } of endpoints) {
    try {
      const response = await fetch(url);
      const status = response.status;
      console.log(`   ${status === 200 ? '✅' : '❌'} ${name}: ${status}`);
    } catch (error) {
      console.log(`   ❌ ${name}: Connection failed`);
    }
  }
}

// Test 6: Docker Services
async function testDockerServices() {
  console.log('\n6️⃣ Testing Docker Services...');
  
  try {
    const { exec } = await import('child_process');
    const { promisify } = await import('util');
    const execAsync = promisify(exec);
    
    const { stdout } = await execAsync('docker ps --format "table {{.Names}}\t{{.Status}}\t{{.Ports}}"');
    const lines = stdout.trim().split('\n').slice(1); // Skip header
    
    const expectedServices = ['minio', 'mongodb'];
    
    for (const service of expectedServices) {
      const isRunning = lines.some(line => line.includes(service));
      console.log(`   ${isRunning ? '✅' : '❌'} ${service}: ${isRunning ? 'Running' : 'Not running'}`);
    }
    
    return true;
  } catch (error) {
    console.log('   ❌ Docker check failed:', error.message);
    return false;
  }
}

// Main test runner
async function runAllTests() {
  console.log('🚀 Starting Complete S3 Music Storage Tests\n');
  
  const tests = [
    { name: 'Environment Variables', fn: testEnvironmentVariables },
    { name: 'Docker Services', fn: testDockerServices },
    { name: 'S3 Connection', fn: testS3Connection },
    { name: 'Audio Metadata Service', fn: testAudioMetadataService },
    { name: 'Port Availability', fn: testPortAvailability },
    { name: 'API Endpoints', fn: testAPIEndpoints }
  ];
  
  const results = [];
  
  for (const test of tests) {
    try {
      const result = await test.fn();
      results.push({ name: test.name, passed: result });
    } catch (error) {
      console.log(`   ❌ ${test.name} failed with error:`, error.message);
      results.push({ name: test.name, passed: false });
    }
  }
  
  // Summary
  console.log('\n📊 Test Summary:');
  console.log('================');
  
  const passed = results.filter(r => r.passed).length;
  const total = results.length;
  
  for (const result of results) {
    console.log(`${result.passed ? '✅' : '❌'} ${result.name}`);
  }
  
  console.log(`\n🎯 Overall Result: ${passed}/${total} tests passed`);
  
  if (passed === total) {
    console.log('\n🎉 All tests passed! Your S3 music storage system is ready for testing.');
    console.log('\n📋 Next steps:');
    console.log('   1. Start backend: cd packages/backend && npm run dev');
    console.log('   2. Start frontend: cd packages/frontend && npm run dev');
    console.log('   3. Open browser: http://localhost:5173');
    console.log('   4. Follow the testing guide: TESTING_GUIDE.md');
  } else {
    console.log('\n⚠️  Some tests failed. Please check the issues above before proceeding.');
    console.log('\n🔧 Troubleshooting:');
    console.log('   1. Ensure Docker is running');
    console.log('   2. Start services: docker-compose -f docker-compose.dev.yml up -d');
    console.log('   3. Check environment variables');
    console.log('   4. Install dependencies: npm install in both packages');
  }
}

// Run tests
runAllTests().catch(console.error);