import { useMemo } from 'react'
import type { AiAgentId, AiAgentsStatus } from '../lib/aiAgents'
import type { VaultAiGuidanceStatus } from '../lib/vaultAiGuidance'
import type { NoteLayout, SidebarSelection, VaultEntry } from '../types'
import type { NoteListFilter } from '../utils/noteListHelpers'
import type { ViewMode } from './useViewMode'
import { buildNavigationCommands } from './commands/navigationCommands'
import { buildNoteCommands } from './commands/noteCommands'
import { buildGitCommands } from './commands/gitCommands'
import { buildViewCommands } from './commands/viewCommands'
import { buildSettingsCommands } from './commands/settingsCommands'
import { buildAiAgentCommands } from './commands/aiAgentCommands'
import { buildTypeCommands } from './commands/typeCommands'
import { buildFilterCommands } from './commands/filterCommands'
import { extractVaultTypes } from '../utils/vaultTypes'

// Re-export types and helpers for backward compatibility
export type { CommandAction, CommandGroup } from './commands/types'
export { groupSortKey } from './commands/types'
export { pluralizeType, buildTypeCommands } from './commands/typeCommands'
export { extractVaultTypes } from '../utils/vaultTypes'
export { buildViewCommands } from './commands/viewCommands'

interface CommandRegistryConfig {
  activeTabPath: string | null
  entries: VaultEntry[]
  modifiedCount: number
  activeNoteHasIcon?: boolean
  mcpStatus?: string
  onInstallMcp?: () => void
  aiAgentsStatus?: AiAgentsStatus
  vaultAiGuidanceStatus?: VaultAiGuidanceStatus
  onOpenAiAgents?: () => void
  onRestoreVaultAiGuidance?: () => void
  onSetDefaultAiAgent?: (agent: AiAgentId) => void
  selectedAiAgent?: AiAgentId
  onCycleDefaultAiAgent?: () => void
  selectedAiAgentLabel?: string
  onReloadVault?: () => void
  onRepairVault?: () => void
  onSetNoteIcon?: () => void
  onRemoveNoteIcon?: () => void
  onChangeNoteType?: () => void
  onMoveNoteToFolder?: () => void
  canMoveNoteToFolder?: boolean
  onOpenInNewWindow?: () => void
  onToggleFavorite?: (path: string) => void
  onToggleOrganized?: (path: string) => void
  onCustomizeNoteListColumns?: () => void
  canCustomizeNoteListColumns?: boolean
  noteListColumnsLabel?: string
  onRestoreDeletedNote?: () => void
  canRestoreDeletedNote?: boolean
  onQuickOpen: () => void
  onCreateNote: () => void
  onCreateNoteOfType: (type: string) => void
  onSave: () => void
  onOpenSettings: () => void
  onOpenFeedback?: () => void
  onOpenVault?: () => void
  onCreateEmptyVault?: () => void
  onAddRemote?: () => void
  canAddRemote?: boolean
  onCreateType?: () => void
  onDeleteNote: (path: string) => void
  onArchiveNote: (path: string) => void
  onUnarchiveNote: (path: string) => void
  onCommitPush: () => void
  onPull?: () => void
  onResolveConflicts?: () => void
  onSetViewMode: (mode: ViewMode) => void
  onToggleInspector: () => void
  onToggleDiff?: () => void
  onToggleRawEditor?: () => void
  noteLayout?: NoteLayout
  onToggleNoteLayout?: () => void
  onToggleAIChat?: () => void
  activeNoteModified: boolean
  onCheckForUpdates?: () => void
  onZoomIn: () => void
  onZoomOut: () => void
  onZoomReset: () => void
  zoomLevel: number
  onSelect: (sel: SidebarSelection) => void
  onRenameFolder?: () => void
  onDeleteFolder?: () => void
  showInbox?: boolean
  onGoBack?: () => void
  onGoForward?: () => void
  canGoBack?: boolean
  canGoForward?: boolean
  onRemoveActiveVault?: () => void
  onRestoreGettingStarted?: () => void
  isGettingStartedHidden?: boolean
  vaultCount?: number
  selection?: SidebarSelection
  noteListFilter?: NoteListFilter
  onSetNoteListFilter?: (filter: NoteListFilter) => void
}

export function useCommandRegistry(config: CommandRegistryConfig): import('./commands/types').CommandAction[] {
  const {
    activeTabPath, entries, modifiedCount,
    onQuickOpen, onCreateNote, onCreateNoteOfType, onSave, onOpenSettings, onOpenFeedback,
    onDeleteNote, onArchiveNote, onUnarchiveNote,
    onCommitPush, onPull, onResolveConflicts, onSetViewMode, onToggleInspector, onToggleDiff, onToggleRawEditor, noteLayout, onToggleNoteLayout, onToggleAIChat, onOpenVault, onCreateEmptyVault,
    activeNoteModified,
    onZoomIn, onZoomOut, onZoomReset, zoomLevel,
    onSelect, onRenameFolder, onDeleteFolder,
    showInbox,
    onGoBack, onGoForward, canGoBack, canGoForward,
    onCheckForUpdates, onCreateType,
    onRemoveActiveVault, onRestoreGettingStarted, isGettingStartedHidden, vaultCount,
    mcpStatus, onInstallMcp, aiAgentsStatus, vaultAiGuidanceStatus,
    onOpenAiAgents, onRestoreVaultAiGuidance, onSetDefaultAiAgent, selectedAiAgent, onCycleDefaultAiAgent, selectedAiAgentLabel,
    onReloadVault, onRepairVault,
    onSetNoteIcon, onRemoveNoteIcon, activeNoteHasIcon, onChangeNoteType, onMoveNoteToFolder, canMoveNoteToFolder,
    onOpenInNewWindow, onToggleFavorite, onToggleOrganized,
    onCustomizeNoteListColumns, canCustomizeNoteListColumns,
    onRestoreDeletedNote, canRestoreDeletedNote,
    selection, noteListFilter, onSetNoteListFilter,
  } = config

  const hasActiveNote = activeTabPath !== null

  const activeEntry = useMemo(
    () => (hasActiveNote ? entries.find(e => e.path === activeTabPath) : undefined),
    [entries, activeTabPath, hasActiveNote],
  )
  const isArchived = activeEntry?.archived ?? false
  const isFavorite = activeEntry?.favorite ?? false
  const isSectionGroup = selection?.kind === 'sectionGroup'
  const noteListColumnsLabel = config.noteListColumnsLabel ?? (
    selection?.kind === 'filter' && selection.filter === 'all'
      ? 'Customize All Notes columns'
      : 'Customize Inbox columns'
  )

  const vaultTypes = useMemo(() => extractVaultTypes(entries), [entries])

  return useMemo(() => [
    ...buildNavigationCommands({
      onQuickOpen,
      onSelect,
      selection,
      onRenameFolder,
      onDeleteFolder,
      showInbox,
      onGoBack,
      onGoForward,
      canGoBack,
      canGoForward,
    }),
    ...buildNoteCommands({
      hasActiveNote, activeTabPath, isArchived,
      onCreateNote, onCreateType, onSave,
      onDeleteNote, onArchiveNote, onUnarchiveNote,
      onChangeNoteType, onMoveNoteToFolder, canMoveNoteToFolder,
      onSetNoteIcon, onRemoveNoteIcon, activeNoteHasIcon, onOpenInNewWindow, onToggleFavorite, isFavorite,
      onToggleOrganized, isOrganized: activeEntry?.organized ?? false,
      onRestoreDeletedNote, canRestoreDeletedNote,
    }),
    ...buildGitCommands({
      modifiedCount,
      canAddRemote: config.canAddRemote ?? false,
      onAddRemote: config.onAddRemote,
      onCommitPush,
      onPull,
      onResolveConflicts,
      onSelect,
    }),
    ...buildViewCommands({
      hasActiveNote, activeNoteModified, onSetViewMode, onToggleInspector,
      onToggleDiff, onToggleRawEditor, noteLayout, onToggleNoteLayout, onToggleAIChat, zoomLevel, onZoomIn, onZoomOut, onZoomReset,
      onCustomizeNoteListColumns, canCustomizeNoteListColumns, noteListColumnsLabel,
    }),
    ...buildSettingsCommands({
      mcpStatus, vaultCount, isGettingStartedHidden,
      onOpenSettings, onOpenFeedback, onOpenVault, onCreateEmptyVault, onRemoveActiveVault, onRestoreGettingStarted,
      onCheckForUpdates, onInstallMcp, onReloadVault, onRepairVault,
    }),
    ...buildAiAgentCommands({
      aiAgentsStatus,
      vaultAiGuidanceStatus,
      selectedAiAgent,
      selectedAiAgentLabel,
      onOpenAiAgents,
      onRestoreVaultAiGuidance,
      onSetDefaultAiAgent,
      onCycleDefaultAiAgent,
    }),
    ...buildTypeCommands(vaultTypes, onCreateNoteOfType, onSelect),
    ...buildFilterCommands({ isSectionGroup, noteListFilter, onSetNoteListFilter }),
  ], [
    hasActiveNote, activeTabPath, isArchived, modifiedCount, activeNoteModified,
    onQuickOpen, onCreateNote, onCreateNoteOfType, onCreateType, onSave, onOpenSettings, onOpenFeedback,
    onDeleteNote, onArchiveNote, onUnarchiveNote,
    onCommitPush, onPull, onResolveConflicts, onSetViewMode, onToggleInspector, onToggleDiff, onToggleRawEditor, noteLayout, onToggleNoteLayout, onToggleAIChat, onOpenVault, onCreateEmptyVault, config.canAddRemote, config.onAddRemote,
    onCheckForUpdates,
    onZoomIn, onZoomOut, onZoomReset, zoomLevel,
    onSelect, onRenameFolder, onDeleteFolder,
    showInbox,
    onGoBack, onGoForward, canGoBack, canGoForward,
    vaultTypes,
    onRemoveActiveVault, onRestoreGettingStarted, isGettingStartedHidden, vaultCount,
    mcpStatus, onInstallMcp, aiAgentsStatus, vaultAiGuidanceStatus,
    onOpenAiAgents, onRestoreVaultAiGuidance, onSetDefaultAiAgent, selectedAiAgent, onCycleDefaultAiAgent, selectedAiAgentLabel,
    onReloadVault, onRepairVault,
    onSetNoteIcon, onRemoveNoteIcon, activeNoteHasIcon, onChangeNoteType, onMoveNoteToFolder, canMoveNoteToFolder,
    isSectionGroup, noteListFilter, onSetNoteListFilter,
    selection,
    onOpenInNewWindow, onToggleFavorite, isFavorite,
    onToggleOrganized, onCustomizeNoteListColumns, canCustomizeNoteListColumns, noteListColumnsLabel,
    onRestoreDeletedNote, canRestoreDeletedNote, activeEntry,
  ])
}