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

// Test that certificate provisioning waits for ports to be ready
tap.test('should defer certificate provisioning until after ports are listening', async (tapTest) => {
  // Track the order of operations
  const operationLog: string[] = [];
  
  // Create a mock server to verify ports are listening
  let port80Listening = false;
  const testServer = net.createServer(() => {
    // We don't need to handle connections, just track that we're listening
  });
  
  // Try to use port 8080 instead of 80 to avoid permission issues in testing
  const acmePort = 8080;
  
  // Create proxy with ACME certificate requirement
  const proxy = new SmartProxy({
    useHttpProxy: [acmePort],
    httpProxyPort: 8844,
    acme: {
      email: 'test@test.local',
      useProduction: false,
      port: acmePort
    },
    routes: [{
      name: 'test-acme-route',
      match: {
        ports: 8443,
        domains: ['test.local']
      },
      action: {
        type: 'forward',
        target: { host: 'localhost', port: 8181 },
        tls: {
          mode: 'terminate',
          certificate: 'auto',
          acme: {
            email: 'test@test.local',
            useProduction: false
          }
        }
      }
    }]
  });
  
  // Mock some internal methods to track operation order
  const originalAddPorts = proxy['portManager'].addPorts;
  proxy['portManager'].addPorts = async function(ports: number[]) {
    operationLog.push('Starting port listeners');
    const result = await originalAddPorts.call(this, ports);
    operationLog.push('Port listeners started');
    port80Listening = true;
    return result;
  };
  
  // Track certificate provisioning
  const originalProvisionAll = proxy['certManager'] ? 
    proxy['certManager']['provisionAllCertificates'] : null;
  
  if (proxy['certManager']) {
    proxy['certManager']['provisionAllCertificates'] = async function() {
      operationLog.push('Starting certificate provisioning');
      // Check if port 80 is listening
      if (!port80Listening) {
        operationLog.push('ERROR: Certificate provisioning started before ports ready');
      }
      // Don't actually provision certificates in the test
      operationLog.push('Certificate provisioning completed');
    };
  }
  
  // Mock certificate manager to avoid real ACME initialization
  (proxy as any).createCertificateManager = async function() {
    operationLog.push('Creating certificate manager');
    const mockCertManager = {
      setUpdateRoutesCallback: () => {},
      setHttpProxy: () => {},
      setGlobalAcmeDefaults: () => {},
      setAcmeStateManager: () => {},
      initialize: async () => {
        operationLog.push('Starting certificate provisioning');
        if (!port80Listening) {
          operationLog.push('ERROR: Certificate provisioning started before ports ready');
        }
        operationLog.push('Certificate provisioning completed');
      },
      provisionAllCertificates: async () => {},
      stop: async () => {},
      getAcmeOptions: () => ({ email: 'test@test.local', useProduction: false }),
      getState: () => ({ challengeRouteActive: false })
    };
    return mockCertManager;
  };
  
  // Start the proxy
  await proxy.start();
  
  // Verify the order of operations
  expect(operationLog).toContain('Starting port listeners');
  expect(operationLog).toContain('Port listeners started');
  expect(operationLog).toContain('Starting certificate provisioning');
  
  // Ensure port listeners started before certificate provisioning
  const portStartIndex = operationLog.indexOf('Port listeners started');
  const certStartIndex = operationLog.indexOf('Starting certificate provisioning');
  
  expect(portStartIndex).toBeLessThan(certStartIndex);
  expect(operationLog).not.toContain('ERROR: Certificate provisioning started before ports ready');
  
  await proxy.stop();
});

// Test that ACME challenge route is available when certificate is requested
tap.test('should have ACME challenge route ready before certificate provisioning', async (tapTest) => {
  let challengeRouteActive = false;
  let certificateProvisioningStarted = false;
  
  const proxy = new SmartProxy({
    useHttpProxy: [8080],
    httpProxyPort: 8844,
    acme: {
      email: 'test@test.local',
      useProduction: false,
      port: 8080
    },
    routes: [{
      name: 'test-route',
      match: {
        ports: 8443,
        domains: ['test.example.com']
      },
      action: {
        type: 'forward',
        target: { host: 'localhost', port: 8181 },
        tls: {
          mode: 'terminate',
          certificate: 'auto'
        }
      }
    }]
  });
  
  // Mock the certificate manager to track operations
  const originalInitialize = proxy['certManager'] ? 
    proxy['certManager'].initialize : null;
    
  if (proxy['certManager']) {
    const certManager = proxy['certManager'];
    
    // Track when challenge route is added
    const originalAddChallenge = certManager['addChallengeRoute'];
    certManager['addChallengeRoute'] = async function() {
      await originalAddChallenge.call(this);
      challengeRouteActive = true;
    };
    
    // Track when certificate provisioning starts
    const originalProvisionAcme = certManager['provisionAcmeCertificate'];
    certManager['provisionAcmeCertificate'] = async function(...args: any[]) {
      certificateProvisioningStarted = true;
      // Verify challenge route is active
      expect(challengeRouteActive).toEqual(true);
      // Don't actually provision in test
      return;
    };
  }
  
  // Mock certificate manager to avoid real ACME initialization
  (proxy as any).createCertificateManager = async function() {
    const mockCertManager = {
      setUpdateRoutesCallback: () => {},
      setHttpProxy: () => {},
      setGlobalAcmeDefaults: () => {},
      setAcmeStateManager: () => {},
      initialize: async () => {
        challengeRouteActive = true;
      },
      provisionAllCertificates: async () => {
        certificateProvisioningStarted = true;
        expect(challengeRouteActive).toEqual(true);
      },
      stop: async () => {},
      getAcmeOptions: () => ({ email: 'test@test.local', useProduction: false }),
      getState: () => ({ challengeRouteActive: false }),
      addChallengeRoute: async () => {
        challengeRouteActive = true;
      },
      provisionAcmeCertificate: async () => {
        certificateProvisioningStarted = true;
        expect(challengeRouteActive).toEqual(true);
      }
    };
    return mockCertManager;
  };
  
  await proxy.start();
  
  // Give it a moment to complete initialization
  await new Promise(resolve => setTimeout(resolve, 100));
  
  // Verify challenge route was added before any certificate provisioning
  expect(challengeRouteActive).toEqual(true);
  
  await proxy.stop();
});

tap.start();