mr-chamuwa-downloader/examples/demo.js

🔥 MrChamuwa's Ultimate Facebook Video Downloader - The most powerful FB video downloading tool in Sri Lanka!

const MrChamuwaFBDownloader = require('../src/index.js');
const chalk = require('chalk');
const boxen = require('boxen');

async function runMrChamuwaDemo() {
  console.log(boxen(
    chalk.rainbow('🔥 MrChamuwa FB Downloader Demo 🔥\n') +
    chalk.cyan('The Ultimate Facebook Video Downloader\n') +
    chalk.yellow('Made with ❤️ in Sri Lanka 🇱🇰'),
    {
      padding: 1,
      borderStyle: 'double',
      borderColor: 'rainbow'
    }
  ));

  console.log(chalk.blue.bold('\n🚀 Initializing MrChamuwa FB Downloader...\n'));

  // Initialize with Sinhala language
  const downloader = new MrChamuwaFBDownloader({
    language: 'si',
    outputDir: './MrChamuwa-Demo-Downloads',
    quality: 'hd',
    saveMetadata: true,
    createSubfolders: true
  });

  // Event listeners for demo
  downloader.on('ready', (message) => {
    console.log(chalk.green(`✅ ${message}`));
  });

  downloader.on('start', (message) => {
    console.log(chalk.blue(`🚀 ${message}`));
  });

  downloader.on('analyze', (message) => {
    console.log(chalk.yellow(`🔍 ${message}`));
  });

  downloader.on('progress', (data) => {
    if (data.progress > 0) {
      const percent = data.progress.toFixed(1);
      const speed = (data.speed / 1024 / 1024).toFixed(2);
      console.log(chalk.cyan(`📊 Progress: ${percent}% | Speed: ${speed} MB/s`));
    }
  });

  downloader.on('completed', (result) => {
    console.log(chalk.green(`✅ ${result.message}`));
    console.log(chalk.cyan(`📁 File: ${result.fileName}`));
    console.log(chalk.cyan(`📊 Size: ${(result.size / 1024 / 1024).toFixed(2)} MB`));
  });

  downloader.on('error', (error) => {
    console.log(chalk.red(`❌ ${error.message}`));
  });

  // Demo features
  console.log(chalk.yellow('📋 Demo Features:'));
  console.log(chalk.white('✅ Multi-language support (Sinhala/English)'));
  console.log(chalk.white('✅ Smart video extraction with multiple methods'));
  console.log(chalk.white('✅ Progress tracking with speed and ETA'));
  console.log(chalk.white('✅ Automatic retry mechanism'));
  console.log(chalk.white('✅ Smart filename generation'));
  console.log(chalk.white('✅ Metadata extraction and saving'));
  console.log(chalk.white('✅ Organized folder structure'));
  console.log(chalk.white('✅ Event-driven architecture'));
  console.log(chalk.white('✅ Batch download support'));
  console.log(chalk.white('✅ Beautiful CLI with interactive prompts\n'));

  // API Demo
  console.log(chalk.magenta.bold('📚 API Usage Examples:\n'));
  
  console.log(chalk.cyan('// Basic download'));
  console.log(chalk.white('const downloader = new MrChamuwaFBDownloader();'));
  console.log(chalk.white('const result = await downloader.downloadVideo(fbUrl);\n'));

  console.log(chalk.cyan('// With custom options'));
  console.log(chalk.white('const downloader = new MrChamuwaFBDownloader({'));
  console.log(chalk.white('  language: "si",'));
  console.log(chalk.white('  quality: "hd",'));
  console.log(chalk.white('  outputDir: "./downloads",'));
  console.log(chalk.white('  saveMetadata: true'));
  console.log(chalk.white('});\n'));

  console.log(chalk.cyan('// With progress tracking'));
  console.log(chalk.white('downloader.on("progress", (data) => {'));
  console.log(chalk.white('  console.log(`${data.progress}% completed`);'));
  console.log(chalk.white('});\n'));

  // Statistics
  const stats = downloader.getStats();
  console.log(chalk.blue.bold('📊 Current Statistics:'));
  console.log(chalk.white(`Session ID: ${stats.sessionId}`));
  console.log(chalk.white(`Downloads: ${stats.totalDownloaded}`));
  console.log(chalk.white(`Failed: ${stats.totalFailed}`));
  console.log(chalk.white(`Success Rate: ${stats.successRate.toFixed(2)}%`));
  console.log(chalk.white(`Total Size: ${(stats.totalSize / 1024 / 1024).toFixed(2)} MB\n`));

  // Installation guide
  console.log(boxen(
    chalk.green.bold('📦 INSTALLATION GUIDE\n\n') +
    chalk.cyan('1. Install from NPM:\n') +
    chalk.white('   npm install -g mr-chamuwa-downloader\n\n') +
    chalk.cyan('2. Use CLI:\n') +
    chalk.white('   chamuwa-fb download\n') +
    chalk.white('   mrchamuwa quick "fb-url"\n\n') +
    chalk.cyan('3. Use in Code:\n') +
    chalk.white('   const MrChamuwaFBDownloader = require("mr-chamuwa-downloader");\n') +
    chalk.white('   const downloader = new MrChamuwaFBDownloader();\n\n') +
    chalk.yellow('🎉 Ready to download Facebook videos like a pro!'),
    {
      padding: 1,
      borderStyle: 'round',
      borderColor: 'green'
    }
  ));

  console.log(chalk.rainbow('\n🔥 MrChamuwa FB Downloader - සුපිරි! 🔥'));
}

if (require.main === module) {
  runMrChamuwaDemo().catch(console.error);
}