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

tap.test('Protocol Detection - TLS Detection', async () => {
  // Test TLS handshake detection
  const tlsHandshake = Buffer.from([
    0x16, // Handshake record type
    0x03, 0x01, // TLS 1.0
    0x00, 0x05, // Length: 5 bytes
    0x01, // ClientHello
    0x00, 0x00, 0x01, 0x00 // Handshake length and data
  ]);
  
  const detector = new smartproxy.detection.TlsDetector();
  expect(detector.canHandle(tlsHandshake)).toEqual(true);
  
  const result = detector.detect(tlsHandshake);
  expect(result).toBeDefined();
  expect(result?.protocol).toEqual('tls');
  expect(result?.connectionInfo.tlsVersion).toEqual('TLSv1.0');
});

tap.test('Protocol Detection - HTTP Detection', async () => {
  // Test HTTP request detection
  const httpRequest = Buffer.from(
    'GET /test HTTP/1.1\r\n' +
    'Host: example.com\r\n' +
    'User-Agent: TestClient/1.0\r\n' +
    '\r\n'
  );
  
  const detector = new smartproxy.detection.HttpDetector();
  expect(detector.canHandle(httpRequest)).toEqual(true);
  
  const result = detector.detect(httpRequest);
  expect(result).toBeDefined();
  expect(result?.protocol).toEqual('http');
  expect(result?.connectionInfo.method).toEqual('GET');
  expect(result?.connectionInfo.path).toEqual('/test');
  expect(result?.connectionInfo.domain).toEqual('example.com');
});

tap.test('Protocol Detection - Main Detector TLS', async () => {
  const tlsHandshake = Buffer.from([
    0x16, // Handshake record type
    0x03, 0x03, // TLS 1.2
    0x00, 0x05, // Length: 5 bytes
    0x01, // ClientHello
    0x00, 0x00, 0x01, 0x00 // Handshake length and data
  ]);
  
  const result = await smartproxy.detection.ProtocolDetector.detect(tlsHandshake);
  expect(result.protocol).toEqual('tls');
  expect(result.connectionInfo.tlsVersion).toEqual('TLSv1.2');
});

tap.test('Protocol Detection - Main Detector HTTP', async () => {
  const httpRequest = Buffer.from(
    'POST /api/test HTTP/1.1\r\n' +
    'Host: api.example.com\r\n' +
    'Content-Type: application/json\r\n' +
    'Content-Length: 2\r\n' +
    '\r\n' +
    '{}'
  );
  
  const result = await smartproxy.detection.ProtocolDetector.detect(httpRequest);
  expect(result.protocol).toEqual('http');
  expect(result.connectionInfo.method).toEqual('POST');
  expect(result.connectionInfo.path).toEqual('/api/test');
  expect(result.connectionInfo.domain).toEqual('api.example.com');
});

tap.test('Protocol Detection - Unknown Protocol', async () => {
  const unknownData = Buffer.from('UNKNOWN PROTOCOL DATA\r\n');
  
  const result = await smartproxy.detection.ProtocolDetector.detect(unknownData);
  expect(result.protocol).toEqual('unknown');
  expect(result.isComplete).toEqual(true);
});

tap.test('Protocol Detection - Fragmented HTTP', async () => {
  // Create connection context
  const context = smartproxy.detection.ProtocolDetector.createConnectionContext({
    sourceIp: '127.0.0.1',
    sourcePort: 12345,
    destIp: '127.0.0.1',
    destPort: 80,
    socketId: 'test-connection-1'
  });
  
  // First fragment
  const fragment1 = Buffer.from('GET /test HT');
  let result = await smartproxy.detection.ProtocolDetector.detectWithContext(
    fragment1,
    context
  );
  expect(result.protocol).toEqual('http');
  expect(result.isComplete).toEqual(false);
  
  // Second fragment
  const fragment2 = Buffer.from('TP/1.1\r\nHost: example.com\r\n\r\n');
  result = await smartproxy.detection.ProtocolDetector.detectWithContext(
    fragment2,
    context
  );
  expect(result.protocol).toEqual('http');
  expect(result.isComplete).toEqual(true);
  expect(result.connectionInfo.method).toEqual('GET');
  expect(result.connectionInfo.path).toEqual('/test');
  expect(result.connectionInfo.domain).toEqual('example.com');
  
  // Clean up fragments
  smartproxy.detection.ProtocolDetector.cleanupConnection(context);
});

tap.test('Protocol Detection - HTTP Methods', async () => {
  const methods = ['GET', 'POST', 'PUT', 'DELETE', 'PATCH', 'HEAD', 'OPTIONS'];
  
  for (const method of methods) {
    const request = Buffer.from(
      `${method} /test HTTP/1.1\r\n` +
      'Host: example.com\r\n' +
      '\r\n'
    );
    
    const detector = new smartproxy.detection.HttpDetector();
    const result = detector.detect(request);
    expect(result?.connectionInfo.method).toEqual(method);
  }
});

tap.test('Protocol Detection - Invalid Data', async () => {
  // Binary data that's not a valid protocol
  const binaryData = Buffer.from([0xFF, 0xFE, 0xFD, 0xFC, 0xFB]);
  
  const result = await smartproxy.detection.ProtocolDetector.detect(binaryData);
  expect(result.protocol).toEqual('unknown');
});

tap.start();