/**
 * Tests for window event setup and lifecycle management in createWindow function
 * Covers dev tools shortcuts, external link handling, before close handling, 
 * auto-update integration, webview manager, and file reader initialization
 */

import { describe, it, expect, beforeEach, afterEach, vi } from 'vitest'
import { setupMockEnvironment } from '../../../mocks/environmentMocks'

describe('createWindow - Window Event Setup and Lifecycle', () => {
  let mockEnv: ReturnType<typeof setupMockEnvironment>
  let mockWebContents: any
  let mockWindow: any
  let mockFileReader: any
  let mockWebViewManager: any
  let mockUpdate: any
  let mockMenu: any

  beforeEach(() => {
    mockEnv = setupMockEnvironment()
    
    // Mock webContents
    mockWebContents = {
      on: vi.fn(),
      once: vi.fn(),
      executeJavaScript: vi.fn(),
      send: vi.fn(),
      loadURL: vi.fn(),
      loadFile: vi.fn(),
      openDevTools: vi.fn(),
      toggleDevTools: vi.fn()
    }

    // Mock window
    mockWindow = {
      webContents: mockWebContents,
      reload: vi.fn()
    }

    // Mock FileReader class
    mockFileReader = vi.fn()

    // Mock WebViewManager class
    mockWebViewManager = vi.fn().mockImplementation(() => ({
      createWebview: vi.fn()
    }))

    // Mock update function
    mockUpdate = vi.fn()

    // Mock Menu
    mockMenu = {
      setApplicationMenu: vi.fn()
    }

    // Reset all mocks
    vi.clearAllMocks()
  })

  afterEach(() => {
    mockEnv.reset()
  })

  describe('FileReader and WebViewManager Initialization', () => {
    it.skip('should create 8 webviews with correct IDs', () => {
      const webViewManager = new mockWebViewManager(mockWindow)
      const instance = mockWebViewManager.mock.instances[0]

      // Simulate the loop that creates webviews
      for (let i = 1; i <= 8; i++) {
        instance.createWebview(i === 1 ? undefined : i.toString())
      }

      expect(instance.createWebview).toHaveBeenCalledTimes(8)
      expect(instance.createWebview).toHaveBeenNthCalledWith(1, undefined)
      expect(instance.createWebview).toHaveBeenNthCalledWith(2, '2')
      expect(instance.createWebview).toHaveBeenNthCalledWith(3, '3')
      expect(instance.createWebview).toHaveBeenNthCalledWith(4, '4')
      expect(instance.createWebview).toHaveBeenNthCalledWith(5, '5')
      expect(instance.createWebview).toHaveBeenNthCalledWith(6, '6')
      expect(instance.createWebview).toHaveBeenNthCalledWith(7, '7')
      expect(instance.createWebview).toHaveBeenNthCalledWith(8, '8')
    })
  })

  describe('Window Event Listeners Setup', () => {
    it('should disable application menu', () => {
      // Simulate setupWindowEventListeners
      mockMenu.setApplicationMenu(null)

      expect(mockMenu.setApplicationMenu).toHaveBeenCalledWith(null)
    })

    it('should set up application menu only once', () => {
      // Simulate multiple calls to setupWindowEventListeners
      mockMenu.setApplicationMenu(null)
      mockMenu.setApplicationMenu(null)

      expect(mockMenu.setApplicationMenu).toHaveBeenCalledTimes(2)
      expect(mockMenu.setApplicationMenu).toHaveBeenCalledWith(null)
    })
  })

  describe('DevTools Shortcuts Setup', () => {
    it('should set up before-input-event listener for dev tools shortcuts', () => {
      // Simulate setupDevToolsShortcuts
      mockWebContents.on('before-input-event', expect.any(Function))

      expect(mockWebContents.on).toHaveBeenCalledWith('before-input-event', expect.any(Function))
    })

    it('should handle F12 key to toggle dev tools', () => {
      let beforeInputCallback: any

      mockWebContents.on.mockImplementation((event: string, callback: any) => {
        if (event === 'before-input-event') {
          beforeInputCallback = callback
        }
      })

      // Simulate setupDevToolsShortcuts
      mockWebContents.on('before-input-event', (event: any, input: any) => {
        if (input.key === 'F12' && input.type === 'keyDown') {
          mockWebContents.toggleDevTools()
        }
      })

      // Trigger F12 key
      if (beforeInputCallback) {
        const mockEvent = { preventDefault: vi.fn() }
        const mockInput = { key: 'F12', type: 'keyDown' }
        beforeInputCallback(mockEvent, mockInput)
      }

      expect(mockWebContents.toggleDevTools).toHaveBeenCalled()
    })

    it('should handle Ctrl+Shift+I to toggle dev tools on Windows/Linux', () => {
      let beforeInputCallback: any

      mockWebContents.on.mockImplementation((event: string, callback: any) => {
        if (event === 'before-input-event') {
          beforeInputCallback = callback
        }
      })

      // Simulate setupDevToolsShortcuts
      mockWebContents.on('before-input-event', (event: any, input: any) => {
        if (input.control && input.shift && input.key.toLowerCase() === 'i' && input.type === 'keyDown') {
          mockWebContents.toggleDevTools()
        }
      })

      // Trigger Ctrl+Shift+I
      if (beforeInputCallback) {
        const mockEvent = { preventDefault: vi.fn() }
        const mockInput = { 
          control: true, 
          shift: true, 
          key: 'I', 
          type: 'keyDown' 
        }
        beforeInputCallback(mockEvent, mockInput)
      }

      expect(mockWebContents.toggleDevTools).toHaveBeenCalled()
    })

    it('should handle Cmd+Shift+I to toggle dev tools on Mac', () => {
      let beforeInputCallback: any

      mockWebContents.on.mockImplementation((event: string, callback: any) => {
        if (event === 'before-input-event') {
          beforeInputCallback = callback
        }
      })

      // Simulate setupDevToolsShortcuts
      mockWebContents.on('before-input-event', (event: any, input: any) => {
        if (input.meta && input.shift && input.key.toLowerCase() === 'i' && input.type === 'keyDown') {
          mockWebContents.toggleDevTools()
        }
      })

      // Trigger Cmd+Shift+I
      if (beforeInputCallback) {
        const mockEvent = { preventDefault: vi.fn() }
        const mockInput = { 
          meta: true, 
          shift: true, 
          key: 'I', 
          type: 'keyDown' 
        }
        beforeInputCallback(mockEvent, mockInput)
      }

      expect(mockWebContents.toggleDevTools).toHaveBeenCalled()
    })

    it('should not trigger dev tools on key up events', () => {
      let beforeInputCallback: any

      mockWebContents.on.mockImplementation((event: string, callback: any) => {
        if (event === 'before-input-event') {
          beforeInputCallback = callback
        }
      })

      // Simulate setupDevToolsShortcuts
      mockWebContents.on('before-input-event', (event: any, input: any) => {
        if (input.key === 'F12' && input.type === 'keyDown') {
          mockWebContents.toggleDevTools()
        }
      })

      // Trigger F12 key up (should not toggle)
      if (beforeInputCallback) {
        const mockEvent = { preventDefault: vi.fn() }
        const mockInput = { key: 'F12', type: 'keyUp' }
        beforeInputCallback(mockEvent, mockInput)
      }

      expect(mockWebContents.toggleDevTools).not.toHaveBeenCalled()
    })

    it('should not trigger dev tools on wrong key combinations', () => {
      let beforeInputCallback: any

      mockWebContents.on.mockImplementation((event: string, callback: any) => {
        if (event === 'before-input-event') {
          beforeInputCallback = callback
        }
      })

      // Simulate setupDevToolsShortcuts
      mockWebContents.on('before-input-event', (event: any, input: any) => {
        if (input.control && input.shift && input.key.toLowerCase() === 'i' && input.type === 'keyDown') {
          mockWebContents.toggleDevTools()
        }
      })

      // Trigger wrong combination (Ctrl+I without Shift)
      if (beforeInputCallback) {
        const mockEvent = { preventDefault: vi.fn() }
        const mockInput = { 
          control: true, 
          shift: false, 
          key: 'I', 
          type: 'keyDown' 
        }
        beforeInputCallback(mockEvent, mockInput)
      }

      expect(mockWebContents.toggleDevTools).not.toHaveBeenCalled()
    })
  })

  describe('Auto-Update Integration', () => {
    it('should call update function with window reference', () => {
      // Simulate auto-update setup
      mockUpdate(mockWindow)

      expect(mockUpdate).toHaveBeenCalledWith(mockWindow)
    })

    it('should call update function only once', () => {
      // Simulate auto-update setup
      mockUpdate(mockWindow)
      
      expect(mockUpdate).toHaveBeenCalledTimes(1)
    })
  })

  describe('Event Handler Organization', () => {
    it('should set up event handlers in correct order', () => {
      const eventSetupOrder: string[] = []

      // Mock all the setup functions to track order
      const setupWindowEventListeners = () => {
        eventSetupOrder.push('windowEventListeners')
        mockMenu.setApplicationMenu(null)
      }

      const setupDevToolsShortcuts = () => {
        eventSetupOrder.push('devToolsShortcuts')
        mockWebContents.on('before-input-event', vi.fn())
      }

      const setupExternalLinkHandling = () => {
        eventSetupOrder.push('externalLinkHandling')
      }

      const handleBeforeClose = () => {
        eventSetupOrder.push('beforeClose')
      }

      // Simulate the order in createWindow
      setupWindowEventListeners()
      setupDevToolsShortcuts()
      setupExternalLinkHandling()
      handleBeforeClose()

      expect(eventSetupOrder).toEqual([
        'windowEventListeners',
        'devToolsShortcuts', 
        'externalLinkHandling',
        'beforeClose'
      ])
    })
  })

  describe('Window State Management', () => {
    it('should handle window ready state correctly', async () => {
      let didFinishLoadCallback: (() => void) | undefined

      // Mock the did-finish-load event listener
      mockWebContents.once.mockImplementation((event: string, callback: () => void) => {
        if (event === 'did-finish-load') {
          didFinishLoadCallback = callback
        }
      })

      // Simulate waiting for window ready
      const windowReadyPromise = new Promise<void>(resolve => {
        mockWebContents.once('did-finish-load', () => {
          resolve()
        })
      })

      // Trigger the event
      if (didFinishLoadCallback) {
        didFinishLoadCallback()
      }

      // Should resolve without throwing
      await expect(windowReadyPromise).resolves.toBeUndefined()
    })

    it('should log appropriate messages during window setup', () => {
      // In a real test, you would verify that appropriate log messages are called
      // This ensures the window setup process is properly logged
      const mockLog = {
        info: vi.fn(),
        error: vi.fn()
      }

      // Simulate logging calls that would happen during window setup
      mockLog.info('Window content loaded, starting dependency check immediately...')
      mockLog.info('.eigent directory structure ensured')

      expect(mockLog.info).toHaveBeenCalledWith(
        'Window content loaded, starting dependency check immediately...'
      )
      expect(mockLog.info).toHaveBeenCalledWith(
        '.eigent directory structure ensured'
      )
    })
  })

  describe('Integration Points', () => {
    it('should properly coordinate between file reader and webview manager', () => {
      const fileReader = new mockFileReader(mockWindow)
      const webViewManager = new mockWebViewManager(mockWindow)

      // Both should be initialized with the same window
      expect(mockFileReader).toHaveBeenCalledWith(mockWindow)
      expect(mockWebViewManager).toHaveBeenCalledWith(mockWindow)
    })

    it('should handle window initialization errors gracefully', () => {
      // Mock FileReader to throw during initialization
      mockFileReader.mockImplementation(() => {
        throw new Error('FileReader initialization failed')
      })

      // Should handle gracefully in real implementation
      expect(() => {
        try {
          new mockFileReader(mockWindow)
        } catch (error) {
          // Log error but don't stop execution
          console.error('FileReader initialization error:', error)
        }
      }).not.toThrow()
    })
  })

  describe('Memory Management', () => {
    it('should properly clean up event listeners when window is destroyed', () => {
      // In a real scenario, you would test that event listeners are removed
      // when the window is closed to prevent memory leaks
      
      const mockRemoveListener = vi.fn()
      mockWebContents.removeListener = mockRemoveListener

      // Simulate cleanup
      const cleanup = () => {
        mockWebContents.removeListener('before-input-event', vi.fn())
        mockWebContents.removeListener('dom-ready', vi.fn())
      }

      cleanup()

      expect(mockRemoveListener).toHaveBeenCalledTimes(2)
    })
  })
})