import { useEffect } from 'react'
import type { FileItem } from '@/lib/api'

export interface UseKeyboardShortcutsParams {
  selectedFile: FileItem | null
  isSpecialTab: (file: FileItem | null) => boolean
  isAsyncImportProcessing: boolean
  isCurrentTabEditing: boolean
  hasCurrentTabUnsavedChanges: boolean
  handleSave: () => Promise<void>
  toggleTabEdit: (path: string) => void
}

export function useKeyboardShortcuts({
  selectedFile,
  isSpecialTab,
  isAsyncImportProcessing,
  isCurrentTabEditing,
  hasCurrentTabUnsavedChanges,
  handleSave,
  toggleTabEdit
}: UseKeyboardShortcutsParams): void {
  useEffect(() => {
    const handleBeforeUnload = (e: BeforeUnloadEvent) => {
      if (isCurrentTabEditing && hasCurrentTabUnsavedChanges) {
        e.preventDefault()
        e.returnValue = ''
      }
    }
    window.addEventListener('beforeunload', handleBeforeUnload)
    return () => window.removeEventListener('beforeunload', handleBeforeUnload)
  }, [isCurrentTabEditing, hasCurrentTabUnsavedChanges])

  useEffect(() => {
    const handleKeyDown = (e: KeyboardEvent) => {
      if (isSpecialTab(selectedFile) || isAsyncImportProcessing) return

      if (e.ctrlKey && e.key === 's') {
        e.preventDefault()
        if (isCurrentTabEditing) {
          handleSave()
        }
      } else if (e.ctrlKey && e.key === 'e') {
        e.preventDefault()
        if (selectedFile) {
          toggleTabEdit(selectedFile.path)
        }
      }
    }

    window.addEventListener('keydown', handleKeyDown)
    return () => window.removeEventListener('keydown', handleKeyDown)
  }, [selectedFile, isSpecialTab, isAsyncImportProcessing, isCurrentTabEditing, handleSave, toggleTabEdit])
}