import { tap, expect } from '@git.zone/tstest/tapbundle';
import { SmartProxy } from '../ts/index.js';
import * as plugins from '../ts/plugins.js';

/**
 * Test that verifies ACME challenge routes are properly created
 */
tap.test('should create ACME challenge route', async (tools) => {
  tools.timeout(5000);
  
  // Create a challenge route manually to test its structure
  const challengeRoute = {
    name: 'acme-challenge',
    priority: 1000,
    match: {
      ports: 18080,
      path: '/.well-known/acme-challenge/*'
    },
    action: {
      type: 'socket-handler' as const,
      socketHandler: (socket: any, context: any) => {
        socket.once('data', (data: Buffer) => {
          const request = data.toString();
          const lines = request.split('\r\n');
          const [method, path] = lines[0].split(' ');
          const token = path?.split('/').pop() || '';
          
          const response = [
            'HTTP/1.1 200 OK',
            'Content-Type: text/plain',
            `Content-Length: ${token.length}`,
            'Connection: close',
            '',
            token
          ].join('\r\n');
          
          socket.write(response);
          socket.end();
        });
      }
    }
  };
  
  // Test that the challenge route has the correct structure
  expect(challengeRoute).toBeDefined();
  expect(challengeRoute.match.path).toEqual('/.well-known/acme-challenge/*');
  expect(challengeRoute.match.ports).toEqual(18080);
  expect(challengeRoute.action.type).toEqual('socket-handler');
  expect(challengeRoute.priority).toEqual(1000);
  
  // Create a proxy with the challenge route
  const settings = {
    routes: [
      {
        name: 'secure-route',
        match: {
          ports: [18443],
          domains: 'test.local'
        },
        action: {
          type: 'forward' as const,
          target: { host: 'localhost', port: 8080 }
        }
      },
      challengeRoute
    ]
  };
  
  const proxy = new SmartProxy(settings);
  
  // Mock NFTables manager
  (proxy as any).nftablesManager = {
    ensureNFTablesSetup: async () => {},
    stop: async () => {}
  };
  
  // Mock certificate manager to prevent real ACME initialization
  (proxy as any).createCertificateManager = async function() {
    return {
      setUpdateRoutesCallback: () => {},
      setHttpProxy: () => {},
      setGlobalAcmeDefaults: () => {},
      setAcmeStateManager: () => {},
      initialize: async () => {},
      provisionAllCertificates: async () => {},
      stop: async () => {},
      getAcmeOptions: () => ({}),
      getState: () => ({ challengeRouteActive: false })
    };
  };
  
  await proxy.start();
  
  // Verify the challenge route is in the proxy's routes
  const proxyRoutes = proxy.routeManager.getAllRoutes();
  const foundChallengeRoute = proxyRoutes.find((r: any) => r.name === 'acme-challenge');
  
  expect(foundChallengeRoute).toBeDefined();
  expect(foundChallengeRoute?.match.path).toEqual('/.well-known/acme-challenge/*');
  
  await proxy.stop();
});

tap.test('should handle HTTP request parsing correctly', async (tools) => {
  tools.timeout(5000);
  
  let handlerCalled = false;
  let receivedContext: any;
  let parsedRequest: any = {};
  
  const settings = {
    routes: [
      {
        name: 'test-static',
        match: {
          ports: [18090],
          path: '/test/*'
        },
        action: {
          type: 'socket-handler' as const,
          socketHandler: (socket, context) => {
            handlerCalled = true;
            receivedContext = context;
            
            // Parse HTTP request from socket
            socket.once('data', (data) => {
              const request = data.toString();
              const lines = request.split('\r\n');
              const [method, path, protocol] = lines[0].split(' ');
              
              // Parse headers
              const headers: any = {};
              for (let i = 1; i < lines.length; i++) {
                if (lines[i] === '') break;
                const [key, value] = lines[i].split(': ');
                if (key && value) {
                  headers[key.toLowerCase()] = value;
                }
              }
              
              // Store parsed request data
              parsedRequest = { method, path, headers };
              
              // Send HTTP response
              const response = [
                'HTTP/1.1 200 OK',
                'Content-Type: text/plain',
                'Content-Length: 2',
                'Connection: close',
                '',
                'OK'
              ].join('\r\n');
              
              socket.write(response);
              socket.end();
            });
          }
        }
      }
    ]
  };
  
  const proxy = new SmartProxy(settings);
  
  // Mock NFTables manager
  (proxy as any).nftablesManager = {
    ensureNFTablesSetup: async () => {},
    stop: async () => {}
  };
  
  await proxy.start();
  
  // Create a simple HTTP request
  const client = new plugins.net.Socket();
  
  await new Promise<void>((resolve, reject) => {
    client.connect(18090, 'localhost', () => {
      // Send HTTP request
      const request = [
        'GET /test/example HTTP/1.1',
        'Host: localhost:18090',
        'User-Agent: test-client',
        '',
        ''
      ].join('\r\n');
      
      client.write(request);
      
      // Wait for response
      client.on('data', (data) => {
        const response = data.toString();
        expect(response).toContain('HTTP/1.1 200');
        expect(response).toContain('OK');
        client.end();
        resolve();
      });
    });
    
    client.on('error', reject);
  });
  
  // Verify handler was called
  expect(handlerCalled).toBeTrue();
  expect(receivedContext).toBeDefined();
  
  // The context passed to socket handlers is IRouteContext, not HTTP request data
  expect(receivedContext.port).toEqual(18090);
  expect(receivedContext.routeName).toEqual('test-static');
  
  // Verify the parsed HTTP request data
  expect(parsedRequest.path).toEqual('/test/example');
  expect(parsedRequest.method).toEqual('GET');
  expect(parsedRequest.headers.host).toEqual('localhost:18090');
  
  await proxy.stop();
});

tap.start();