import { describe, it, beforeEach, mock } from 'node:test'
import assert from 'node:assert/strict'
import { EventEmitter } from 'node:events'
import socketHandler from '../app/socket.js'

describe('Socket Handler', () => {
  let io, mockSocket, mockConfig

  beforeEach(() => {
    // Mock Socket.IO instance
    io = new EventEmitter()
    io.on = mock.fn(io.on)

    // Mock socket instance
    mockSocket = new EventEmitter()
    mockSocket.id = 'test-socket-id'
    mockSocket.handshake = {
      session: {
        save: mock.fn((cb) => cb())
      }
    }
    mockSocket.emit = mock.fn()
    mockSocket.disconnect = mock.fn()

    // Mock config
    mockConfig = {
      ssh: {
        term: 'xterm-color',
        readyTimeout: 20000,
        keepaliveInterval: 120000,
        keepaliveCountMax: 10
      },
      options: {
        allowReauth: true,
        allowReplay: true,
        allowReconnect: true
      },
      user: {}
    }

    // Initialize socket handler
    socketHandler(io, mockConfig)
  })

  it('should set up connection listener on io instance', () => {
    assert.equal(io.on.mock.calls.length, 1)
    assert.equal(io.on.mock.calls[0].arguments[0], 'connection')
    assert.equal(typeof io.on.mock.calls[0].arguments[1], 'function')
  })

  it('should create new WebSSH2Socket instance on connection', () => {
    const connectionHandler = io.on.mock.calls[0].arguments[1]
    connectionHandler(mockSocket)
    
    // Verify socket emits authentication request when no basic auth
    assert.equal(mockSocket.emit.mock.calls[0].arguments[0], 'authentication')
    assert.deepEqual(mockSocket.emit.mock.calls[0].arguments[1], { 
      action: 'request_auth' 
    })
  })
})

describe('Authentication Flow', () => {
  it.todo('should handle keyboard-interactive authentication')
  it.todo('should process successful authentication')
  it.todo('should handle invalid credentials')
  it.todo('should respect disableInteractiveAuth setting')
})

describe('Terminal Operations', () => {
  it.todo('should handle terminal resize events')
  it.todo('should process terminal data correctly')
  it.todo('should maintain terminal session state')
})

describe('Control Commands', () => {
  it.todo('should process reauth commands')
  it.todo('should handle credential replay')
  it.todo('should update UI elements appropriately')
})

describe('Session Management', () => {
  it.todo('should clean up on disconnect')
  it.todo('should manage session state')
  it.todo('should clear credentials properly')
})