#!/usr/bin/env node

/**
 * Simple HTTP server with startup banner
 */

import express from 'express';
import cors from 'cors';

// Set environment variables if not set
process.env.LARAVEL_API_BASE_URL = process.env.LARAVEL_API_BASE_URL || 'https://example.com';

console.log('🚀 Starting Laravel Healthcare MCP HTTP Server...');

try {
  const app = express();
  const port = process.env.MCP_SERVER_PORT || 3000;
  const host = process.env.MCP_SERVER_HOST || '0.0.0.0';

  console.log('📋 Step 1: Setting up middleware...');
  
  // Basic middleware
  app.use(cors());
  app.use(express.json());

  console.log('📋 Step 2: Setting up routes...');

  // Health endpoint
  app.get('/health', (req, res) => {
    res.json({
      status: 'healthy',
      timestamp: new Date().toISOString(),
      server: 'Laravel Healthcare MCP Server',
      port: port,
      host: host,
      apiUrl: process.env.LARAVEL_API_BASE_URL
    });
  });

  // Tools endpoint
  app.get('/tools', (req, res) => {
    res.json({
      message: 'Laravel Healthcare MCP Server Tools',
      total: 26,
      publicTools: 21,
      providerTools: 5,
      note: 'Use POST /tools/{toolName}/execute to run tools'
    });
  });

  // Stats endpoint
  app.get('/stats', (req, res) => {
    res.json({
      server: {
        name: 'Laravel Healthcare MCP Server',
        version: '1.0.0',
        uptime: process.uptime(),
        memory: process.memoryUsage()
      },
      tools: {
        total: 26,
        categories: {
          'public': 21,
          'provider': 5
        }
      },
      config: {
        port: port,
        host: host,
        apiUrl: process.env.LARAVEL_API_BASE_URL
      }
    });
  });

  console.log('📋 Step 3: Starting HTTP server...');

  // Start server
  const server = app.listen(port, host, () => {
    const serverUrl = `http://${host === '0.0.0.0' ? 'localhost' : host}:${port}`;
    
    // Startup banner
    console.log('\n' + '='.repeat(60));
    console.log('🚀 LARAVEL HEALTHCARE MCP SERVER - HTTP MODE');
    console.log('='.repeat(60));
    console.log(`📡 Server URL: ${serverUrl}`);
    console.log(`🌐 Host: ${host}`);
    console.log(`🔌 Port: ${port}`);
    console.log(`🔗 API URL: ${process.env.LARAVEL_API_BASE_URL}`);
    console.log('='.repeat(60));
    console.log('📋 Available Endpoints:');
    console.log(`   • Health Check:  ${serverUrl}/health`);
    console.log(`   • Tools List:    ${serverUrl}/tools`);
    console.log(`   • Server Stats:  ${serverUrl}/stats`);
    console.log('='.repeat(60));
    console.log('📊 Server Status: READY');
    console.log(`⏰ Started at: ${new Date().toLocaleString()}`);
    console.log('='.repeat(60));
    console.log('💡 Press Ctrl+C to stop the server');
    console.log('');
    console.log('🧪 Test the server:');
    console.log(`   curl ${serverUrl}/health`);
    console.log(`   curl ${serverUrl}/tools`);
    console.log(`   curl ${serverUrl}/stats`);
    console.log('');
  });

  // Graceful shutdown
  const shutdown = (signal) => {
    console.log(`\n🛑 Received ${signal}, shutting down HTTP server...`);
    server.close(() => {
      console.log('✅ HTTP server stopped');
      process.exit(0);
    });
  };

  process.on('SIGINT', () => shutdown('SIGINT'));
  process.on('SIGTERM', () => shutdown('SIGTERM'));

} catch (error) {
  console.error('❌ HTTP Server startup failed:', error.message);
  console.error('Stack trace:', error.stack);
  process.exit(1);
}