// Example authentication flow
import { Client } from '@modelcontextprotocol/sdk/client/index.js';
import { StdioClientTransport } from '@modelcontextprotocol/sdk/client/stdio.js';

const transport = new StdioClientTransport();
const client = new Client({
  name: 'docker-mcp-client',
  version: '1.0.0'
});

// Connect to the MCP server
await client.connect(transport);

// Create a custom MCP server using the official SDK
import { Server } from '@modelcontextprotocol/sdk/server/index.js';
import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';
import { CallToolRequestSchema } from '@modelcontextprotocol/sdk/types.js';

class MyMCPServer extends Server {
  constructor() {
    super({
      name: 'my-custom-server',
      version: '1.0.0'
    });
  }

  // Define your server capabilities
  async initialize() {
    // Register custom tools
    this.setRequestHandler(CallToolRequestSchema, async (request) => {
      if (request.params.name === 'custom_action') {
        // Handle custom actions
        return {
          content: [
            {
              type: 'text',
              text: JSON.stringify({ result: 'success', data: request.params.arguments })
            }
          ]
        };
      }
      
      // Handle other tool calls or throw error for unknown tools
      throw new Error(`Unknown tool: ${request.params.name}`);
    });
  }
}

// Start the server with stdio transport
const server = new MyMCPServer();
const transport = new StdioServerTransport();
server.connect(transport);

// Optimize server performance using the official SDK
import { Server } from '@modelcontextprotocol/sdk/server/index.js';
import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';
import { CallToolRequestSchema } from '@modelcontextprotocol/sdk/types.js';

class OptimizedMCPServer extends Server {
  private cache = new Map();
  
  async initialize() {
    this.setRequestHandler(CallToolRequestSchema, async (request) => {
      // Check cache first
      const cacheKey = `${request.params.name}:${JSON.stringify(request.params.arguments)}`;
      if (this.cache.has(cacheKey)) {
        return this.cache.get(cacheKey);
      }
      
      // Process request
      const result = await this.processRequest(request);
      
      // Cache result
      this.cache.set(cacheKey, result);
      
      return result;
    });
  }
  
  private async processRequest(request: any) {
    // Implement your request processing logic here
    return {
      content: [
        {
          type: 'text',
          text: 'Request processed successfully'
        }
      ]
    };
  }
}

// Example: E-commerce integration using the official SDK
import { Server } from '@modelcontextprotocol/sdk/server/index.js';
import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';
import { CallToolRequestSchema } from '@modelcontextprotocol/sdk/types.js';

class EcommerceMCPServer extends Server {
  async initialize() {
    // Register tools for the server
    this.setRequestHandler(CallToolRequestSchema, async (request) => {
      switch (request.params.name) {
        case 'process_payment':
          return await this.processPayment(request.params.arguments);
        case 'check_inventory':
          return await this.checkInventory(request.params.arguments);
        default:
          throw new Error(`Unknown tool: ${request.params.name}`);
      }
    });
  }
  
  private async processPayment(args: any) {
    const stripe = new Stripe(process.env.STRIPE_SECRET_KEY);
    const payment = await stripe.paymentIntents.create({
      amount: args.amount,
      currency: args.currency
    });
    
    return {
      content: [
        {
          type: 'text',
          text: JSON.stringify({ success: true, payment_id: payment.id })
        }
      ]
    };
  }
  
  private async checkInventory(args: any) {
    const inventory = await this.database.query(
      'SELECT * FROM inventory WHERE product_id = ?',
      [args.product_id]
    );
    
    return {
      content: [
        {
          type: 'text',
          text: JSON.stringify({ 
            available: inventory.quantity > 0, 
            quantity: inventory.quantity 
          })
        }
      ]
    };
  }
}

// Debug connection issues using the official SDK
import { Server } from '@modelcontextprotocol/sdk/server/index.js';
import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';
import { CallToolRequestSchema } from '@modelcontextprotocol/sdk/types.js';

class DebugMCPServer extends Server {
  async initialize() {
    this.setRequestHandler(CallToolRequestSchema, async (request) => {
      try {
        console.log('Received request:', request);
        
        const result = await this.processRequest(request);
        console.log('Request processed successfully:', result);
        
        return result;
      } catch (error) {
        console.error('Error processing request:', error);
        
        throw new Error(`Internal error: ${error.message}`);
      }
    });
  }
  
  private async processRequest(request: any) {
    // Implement your request processing logic here
    return {
      content: [
        {
          type: 'text',
          text: 'Request processed successfully'
        }
      ]
    };
  }
}