import { createPinia, setActivePinia } from 'pinia'
import { beforeEach, describe, expect, it, vi } from 'vitest'
import { ref } from 'vue'

import { useCoreCommands } from '@/composables/useCoreCommands'
import type { LGraphNode } from '@/lib/litegraph/src/litegraph'
import { useSettingStore } from '@/platform/settings/settingStore'
import { api } from '@/scripts/api'
import { app } from '@/scripts/app'
import { createMockLGraphNode } from '@/utils/__tests__/litegraphTestUtils'

// Mock vue-i18n for useExternalLink
const mockLocale = ref('en')
vi.mock('vue-i18n', async () => {
  const actual = await vi.importActual('vue-i18n')
  return {
    ...actual,
    useI18n: vi.fn(() => ({
      locale: mockLocale
    }))
  }
})

vi.mock('@/scripts/app', () => {
  const mockGraphClear = vi.fn()
  const mockCanvas = {
    subgraph: undefined,
    selectedItems: new Set(),
    copyToClipboard: vi.fn(),
    pasteFromClipboard: vi.fn(),
    selectItems: vi.fn()
  }

  return {
    app: {
      clean: vi.fn(() => {
        // Simulate app.clean() calling graph.clear() only when not in subgraph
        if (!mockCanvas.subgraph) {
          mockGraphClear()
        }
      }),
      canvas: mockCanvas,
      rootGraph: {
        clear: mockGraphClear
      }
    }
  }
})

vi.mock('@/scripts/api', () => ({
  api: {
    dispatchCustomEvent: vi.fn(),
    apiURL: vi.fn(() => 'http://localhost:8188')
  }
}))

vi.mock('@/platform/settings/settingStore')

vi.mock('@/stores/authStore', () => ({
  useAuthStore: vi.fn(() => ({}))
}))

vi.mock('@/composables/auth/useFirebaseAuth', () => ({
  useFirebaseAuth: vi.fn(() => null)
}))

vi.mock('firebase/auth', () => ({
  setPersistence: vi.fn(),
  browserLocalPersistence: {},
  onAuthStateChanged: vi.fn()
}))

vi.mock('@/platform/workflow/core/services/workflowService', () => ({
  useWorkflowService: vi.fn(() => ({}))
}))

const mockDialogService = vi.hoisted(() => ({
  prompt: vi.fn()
}))
vi.mock('@/services/dialogService', () => ({
  useDialogService: vi.fn(() => mockDialogService)
}))

vi.mock('@/services/litegraphService', () => ({
  useLitegraphService: vi.fn(() => ({}))
}))

vi.mock('@/stores/executionStore', () => ({
  useExecutionStore: vi.fn(() => ({}))
}))

vi.mock('@/stores/toastStore', () => ({
  useToastStore: vi.fn(() => ({}))
}))

const mockChangeTracker = vi.hoisted(() => ({
  checkState: vi.fn()
}))
const mockWorkflowStore = vi.hoisted(() => ({
  activeWorkflow: {
    changeTracker: mockChangeTracker
  }
}))
vi.mock('@/platform/workflow/management/stores/workflowStore', () => ({
  useWorkflowStore: vi.fn(() => mockWorkflowStore)
}))

vi.mock('@/stores/subgraphStore', () => ({
  useSubgraphStore: vi.fn(() => ({}))
}))

vi.mock('@/renderer/core/canvas/canvasStore', () => ({
  useCanvasStore: vi.fn(() => ({
    getCanvas: () => app.canvas,
    canvas: app.canvas
  })),
  useTitleEditorStore: vi.fn(() => ({
    titleEditorTarget: null
  }))
}))

vi.mock('@/stores/workspace/colorPaletteStore', () => ({
  useColorPaletteStore: vi.fn(() => ({}))
}))

vi.mock('@/composables/auth/useAuthActions', () => ({
  useAuthActions: vi.fn(() => ({}))
}))

vi.mock('@/platform/cloud/subscription/composables/useSubscription', () => ({
  useSubscription: vi.fn(() => ({
    isActiveSubscription: vi.fn().mockReturnValue(true),
    showSubscriptionDialog: vi.fn()
  }))
}))

vi.mock('@/composables/billing/useBillingContext', () => ({
  useBillingContext: vi.fn(() => ({
    isActiveSubscription: { value: true },
    showSubscriptionDialog: vi.fn()
  }))
}))

describe('useCoreCommands', () => {
  const createMockNode = (id: number, comfyClass: string): LGraphNode => {
    const baseNode = createMockLGraphNode({ id })
    return Object.assign(baseNode, {
      constructor: {
        ...baseNode.constructor,
        comfyClass
      }
    })
  }

  const createMockSubgraph = () => {
    const mockNodes = [
      // Mock input node
      createMockNode(1, 'SubgraphInputNode'),
      // Mock output node
      createMockNode(2, 'SubgraphOutputNode'),
      // Mock user node
      createMockNode(3, 'SomeUserNode'),
      // Another mock user node
      createMockNode(4, 'AnotherUserNode')
    ]

    return {
      nodes: mockNodes,
      remove: vi.fn(),
      events: {
        dispatch: vi.fn(),
        addEventListener: vi.fn(),
        removeEventListener: vi.fn(),
        dispatchEvent: vi.fn()
      },
      name: 'test-subgraph',
      inputNode: undefined,
      outputNode: undefined,
      add: vi.fn(),
      clear: vi.fn(),
      serialize: vi.fn(),
      configure: vi.fn(),
      start: vi.fn(),
      stop: vi.fn(),
      runStep: vi.fn(),
      findNodeByTitle: vi.fn(),
      findNodesByTitle: vi.fn(),
      findNodesByType: vi.fn(),
      findNodeById: vi.fn(),
      getNodeById: vi.fn(),
      setDirtyCanvas: vi.fn(),
      sendActionToCanvas: vi.fn(),
      extra: {} as Record<string, unknown>
    } as Partial<typeof app.canvas.subgraph> as typeof app.canvas.subgraph
  }

  const mockSubgraph = createMockSubgraph()!

  function createMockSettingStore(
    getReturnValue: boolean
  ): ReturnType<typeof useSettingStore> {
    return {
      get: vi.fn().mockReturnValue(getReturnValue),
      addSetting: vi.fn(),
      load: vi.fn(),
      set: vi.fn(),
      setMany: vi.fn(),
      exists: vi.fn(),
      getDefaultValue: vi.fn(),
      isReady: true,
      isLoading: false,
      error: undefined,
      settingValues: {},
      settingsById: {},
      $id: 'setting',
      $state: {
        settingValues: {},
        settingsById: {},
        isReady: true,
        isLoading: false,
        error: undefined
      },
      $patch: vi.fn(),
      $reset: vi.fn(),
      $subscribe: vi.fn(),
      $onAction: vi.fn(),
      $dispose: vi.fn(),
      _customProperties: new Set()
    } satisfies ReturnType<typeof useSettingStore>
  }

  beforeEach(() => {
    vi.clearAllMocks()

    // Set up Pinia
    setActivePinia(createPinia())

    // Reset app state
    app.canvas.subgraph = undefined

    // Mock settings store
    vi.mocked(useSettingStore).mockReturnValue(createMockSettingStore(false))

    // Mock global confirm
    global.confirm = vi.fn().mockReturnValue(true)
  })

  describe('ClearWorkflow command', () => {
    it('should clear main graph when not in subgraph', async () => {
      const commands = useCoreCommands()
      const clearCommand = commands.find(
        (cmd) => cmd.id === 'Comfy.ClearWorkflow'
      )!

      // Execute the command
      await clearCommand.function()

      expect(app.clean).toHaveBeenCalled()
      expect(app.rootGraph.clear).toHaveBeenCalled()
      expect(api.dispatchCustomEvent).toHaveBeenCalledWith('graphCleared')
    })

    it('should preserve input/output nodes when clearing subgraph', async () => {
      // Set up subgraph context
      app.canvas.subgraph = mockSubgraph

      const commands = useCoreCommands()
      const clearCommand = commands.find(
        (cmd) => cmd.id === 'Comfy.ClearWorkflow'
      )!

      // Execute the command
      await clearCommand.function()

      expect(app.clean).toHaveBeenCalled()
      expect(app.rootGraph.clear).not.toHaveBeenCalled()

      // Should only remove user nodes, not input/output nodes
      const subgraph = app.canvas.subgraph!
      expect(subgraph.remove).toHaveBeenCalledTimes(2)
      expect(subgraph.remove).toHaveBeenCalledWith(subgraph.nodes[2]) // user1
      expect(subgraph.remove).toHaveBeenCalledWith(subgraph.nodes[3]) // user2
      expect(subgraph.remove).not.toHaveBeenCalledWith(subgraph.nodes[0]) // input1
      expect(subgraph.remove).not.toHaveBeenCalledWith(subgraph.nodes[1]) // output1

      expect(api.dispatchCustomEvent).toHaveBeenCalledWith('graphCleared')
    })

    it('should respect confirmation setting', async () => {
      // Mock confirmation required
      vi.mocked(useSettingStore).mockReturnValue(createMockSettingStore(true))

      global.confirm = vi.fn().mockReturnValue(false) // User cancels

      const commands = useCoreCommands()
      const clearCommand = commands.find(
        (cmd) => cmd.id === 'Comfy.ClearWorkflow'
      )!

      // Execute the command
      await clearCommand.function()

      // Should not clear anything when user cancels
      expect(app.clean).not.toHaveBeenCalled()
      expect(app.rootGraph.clear).not.toHaveBeenCalled()
      expect(api.dispatchCustomEvent).not.toHaveBeenCalled()
    })
  })

  describe('Canvas clipboard commands', () => {
    function findCommand(id: string) {
      return useCoreCommands().find((cmd) => cmd.id === id)!
    }

    beforeEach(() => {
      app.canvas.selectedItems = new Set()
      vi.mocked(app.canvas.copyToClipboard).mockClear()
      vi.mocked(app.canvas.pasteFromClipboard).mockClear()
      vi.mocked(app.canvas.selectItems).mockClear()
    })

    it('should copy selected items when selection exists', async () => {
      app.canvas.selectedItems = new Set([
        {}
      ]) as typeof app.canvas.selectedItems

      await findCommand('Comfy.Canvas.CopySelected').function()

      expect(app.canvas.copyToClipboard).toHaveBeenCalledWith()
    })

    it('should not copy when no items are selected', async () => {
      await findCommand('Comfy.Canvas.CopySelected').function()

      expect(app.canvas.copyToClipboard).not.toHaveBeenCalled()
    })

    it('should paste from clipboard', async () => {
      await findCommand('Comfy.Canvas.PasteFromClipboard').function()

      expect(app.canvas.pasteFromClipboard).toHaveBeenCalledWith()
    })

    it('should select all items', async () => {
      await findCommand('Comfy.Canvas.SelectAll').function()

      // No arguments means "select all items on canvas"
      expect(app.canvas.selectItems).toHaveBeenCalledWith()
    })
  })

  describe('Subgraph metadata commands', () => {
    beforeEach(() => {
      mockSubgraph.extra = {}
      vi.clearAllMocks()
    })

    describe('SetDescription command', () => {
      it('should do nothing when not in subgraph', async () => {
        app.canvas.subgraph = undefined

        const commands = useCoreCommands()
        const setDescCommand = commands.find(
          (cmd) => cmd.id === 'Comfy.Subgraph.SetDescription'
        )!

        await setDescCommand.function()

        expect(mockDialogService.prompt).not.toHaveBeenCalled()
      })

      it('should set description on subgraph.extra', async () => {
        app.canvas.subgraph = mockSubgraph
        mockDialogService.prompt.mockResolvedValue('Test description')

        const commands = useCoreCommands()
        const setDescCommand = commands.find(
          (cmd) => cmd.id === 'Comfy.Subgraph.SetDescription'
        )!

        await setDescCommand.function()

        expect(mockDialogService.prompt).toHaveBeenCalled()
        expect(mockSubgraph.extra.BlueprintDescription).toBe('Test description')
        expect(mockChangeTracker.checkState).toHaveBeenCalled()
      })

      it('should not set description when user cancels', async () => {
        app.canvas.subgraph = mockSubgraph
        mockDialogService.prompt.mockResolvedValue(null)

        const commands = useCoreCommands()
        const setDescCommand = commands.find(
          (cmd) => cmd.id === 'Comfy.Subgraph.SetDescription'
        )!

        await setDescCommand.function()

        expect(mockSubgraph.extra.BlueprintDescription).toBeUndefined()
        expect(mockChangeTracker.checkState).not.toHaveBeenCalled()
      })
    })

    describe('SetSearchAliases command', () => {
      it('should do nothing when not in subgraph', async () => {
        app.canvas.subgraph = undefined

        const commands = useCoreCommands()
        const setAliasesCommand = commands.find(
          (cmd) => cmd.id === 'Comfy.Subgraph.SetSearchAliases'
        )!

        await setAliasesCommand.function()

        expect(mockDialogService.prompt).not.toHaveBeenCalled()
      })

      it('should set search aliases on subgraph.extra', async () => {
        app.canvas.subgraph = mockSubgraph
        mockDialogService.prompt.mockResolvedValue('alias1, alias2, alias3')

        const commands = useCoreCommands()
        const setAliasesCommand = commands.find(
          (cmd) => cmd.id === 'Comfy.Subgraph.SetSearchAliases'
        )!

        await setAliasesCommand.function()

        expect(mockDialogService.prompt).toHaveBeenCalled()
        expect(mockSubgraph.extra.BlueprintSearchAliases).toEqual([
          'alias1',
          'alias2',
          'alias3'
        ])
        expect(mockChangeTracker.checkState).toHaveBeenCalled()
      })

      it('should trim whitespace and filter empty strings', async () => {
        app.canvas.subgraph = mockSubgraph
        mockDialogService.prompt.mockResolvedValue('  alias1  ,  , alias2 ,  ')

        const commands = useCoreCommands()
        const setAliasesCommand = commands.find(
          (cmd) => cmd.id === 'Comfy.Subgraph.SetSearchAliases'
        )!

        await setAliasesCommand.function()

        expect(mockSubgraph.extra.BlueprintSearchAliases).toEqual([
          'alias1',
          'alias2'
        ])
      })

      it('should set undefined when empty input', async () => {
        app.canvas.subgraph = mockSubgraph
        mockDialogService.prompt.mockResolvedValue('')

        const commands = useCoreCommands()
        const setAliasesCommand = commands.find(
          (cmd) => cmd.id === 'Comfy.Subgraph.SetSearchAliases'
        )!

        await setAliasesCommand.function()

        expect(mockSubgraph.extra.BlueprintSearchAliases).toBeUndefined()
      })

      it('should not set aliases when user cancels', async () => {
        app.canvas.subgraph = mockSubgraph
        mockDialogService.prompt.mockResolvedValue(null)

        const commands = useCoreCommands()
        const setAliasesCommand = commands.find(
          (cmd) => cmd.id === 'Comfy.Subgraph.SetSearchAliases'
        )!

        await setAliasesCommand.function()

        expect(mockSubgraph.extra.BlueprintSearchAliases).toBeUndefined()
        expect(mockChangeTracker.checkState).not.toHaveBeenCalled()
      })
    })
  })
})