import {
  useCallback,
  useMemo,
  useState,
  type Dispatch,
  type MutableRefObject,
  type SetStateAction,
} from 'react';

import { resolveEditorImageReferenceDataUrl } from '../../services/image-editor/editorImageReference';
import {
  editEditorImage,
  generateEditorCharacterAnimation,
  generateEditorIconSpritesheet,
  generateEditorImage,
  type EditorIconSpritesheetGenerationResult,
  type EditorIconSpritesheetIconResult,
  type EditorImageGenerationResult,
} from '../../services/image-editor/editorProjectClient';
import {
  createGeneratedResultLayer,
  createIconSpritesheetResultLayers,
  createQuickEditResultLayer,
} from './ImageCanvasGenerationLayerModel';
import {
  CHARACTER_ANIMATION_DURATION_OPTIONS,
  CHARACTER_ANIMATION_MODEL,
  CHARACTER_FRAME_DISPLAY_SIZE,
  CHARACTER_FRAME_ORIGINAL_SIZE,
  DEFAULT_ICON_DESCRIPTIONS,
  DEFAULT_IMAGE_MODEL,
  DEFAULT_SPEC_FORM_VALUES,
  EDITOR_IMAGE_DIMENSION_OPTIONS,
  ICON_DESCRIPTION_LIMIT,
  ICON_FRAME_DISPLAY_SIZE,
  ICON_FRAME_ORIGINAL_SIZE,
  SPEC_FRAME_DISPLAY_SIZE,
  SPEC_FRAME_ORIGINAL_SIZE,
  SPEC_GENERATION_SIZE,
  SPEC_TYPE_LABEL,
  buildCharacterGenerationInputs,
  buildEditGenerationInputs,
  buildIconGenerationInputs,
  buildImageGenerationInputs,
  buildQuickEditModelOptions,
  buildQuickEditSizeOptions,
  buildSpecGenerationInputs,
  buildSpecPrompt,
  calculateCharacterAnimationPrice,
  createCanvasLayerReference,
  isCanvasGenerationDialog,
  resolveCharacterAnimationSourceImageSrc,
  resolveImageGenerationErrorMessage,
} from './ImageCanvasGenerationModel';
import { formatImageSizeValue } from './ImageCanvasEditorModel';
import type {
  CanvasGenerationDialogState,
  CanvasGenerationInputs,
  CanvasLayer,
  CanvasTool,
  CanvasViewport,
  CharacterAnimationPanelState,
  GenerateDialogState,
  ImageContextMenuState,
  QuickEditPanelState,
  SidebarPanel,
  SpecFormValues,
  SpecGenerationType,
} from './ImageCanvasEditorTypes';

type CanvasSize = { width: number; height: number };

type CanvasGenerationDialogUpdater = (
  dialog: CanvasGenerationDialogState,
) => CanvasGenerationDialogState | null;

type GenerationWorkflowOptions = {
  layers: CanvasLayer[];
  canvasSize: CanvasSize;
  viewport: CanvasViewport;
  layerCounterRef: MutableRefObject<number>;
  generateDialog: GenerateDialogState | null;
  setGenerateDialog: Dispatch<SetStateAction<GenerateDialogState | null>>;
  openCanvasGenerationDialog: (
    dialog: Omit<CanvasGenerationDialogState, 'id'>,
  ) => void;
  updateCanvasGenerationDialogById: (
    dialogId: string,
    updater: CanvasGenerationDialogUpdater,
  ) => void;
  removeCanvasGenerationDialogById: (dialogId: string) => void;
  removeCanvasGenerationDialogsByLayerId: (targetLayerId: string) => void;
  getGeneratingDialogPlaceholder: (
    dialog: GenerateDialogState,
  ) => GenerateDialogState['placeholder'];
  appendCanvasLayersWithResources: (nextLayers: CanvasLayer[]) => void;
  selectSingleLayer: (layerId: string | null) => void;
  fitLayers: (targetLayers?: CanvasLayer[]) => void;
  setActiveTool: Dispatch<SetStateAction<CanvasTool>>;
  setActiveSidebarPanel: Dispatch<SetStateAction<SidebarPanel | null>>;
  setMetadataLayer: Dispatch<SetStateAction<CanvasLayer | null>>;
  setImageContextMenu: Dispatch<SetStateAction<ImageContextMenuState | null>>;
};

function getViewportWorldCenter({
  canvasSize,
  viewport,
}: {
  canvasSize: CanvasSize;
  viewport: CanvasViewport;
}) {
  const safeScale = viewport.scale > 0 ? viewport.scale : 1;
  return {
    x: (canvasSize.width / 2 - viewport.x) / safeScale,
    y: (canvasSize.height / 2 - viewport.y) / safeScale,
  };
}

function setFailedCharacterGenerationIdle(dialog: GenerateDialogState) {
  return {
    ...dialog,
    status: dialog.status === 'failed' ? 'idle' : dialog.status,
    errorMessage: dialog.status === 'failed' ? undefined : dialog.errorMessage,
  };
}

function setFailedIconGenerationIdle(dialog: GenerateDialogState) {
  return {
    ...dialog,
    status: dialog.status === 'failed' ? 'idle' : dialog.status,
    errorMessage: dialog.status === 'failed' ? undefined : dialog.errorMessage,
  };
}

export function useImageCanvasGenerationWorkflow({
  layers,
  canvasSize,
  viewport,
  layerCounterRef,
  generateDialog,
  setGenerateDialog,
  openCanvasGenerationDialog,
  updateCanvasGenerationDialogById,
  removeCanvasGenerationDialogById,
  removeCanvasGenerationDialogsByLayerId,
  getGeneratingDialogPlaceholder,
  appendCanvasLayersWithResources,
  selectSingleLayer,
  fitLayers,
  setActiveTool,
  setActiveSidebarPanel,
  setMetadataLayer,
  setImageContextMenu,
}: GenerationWorkflowOptions) {
  const [isSpecMenuOpen, setIsSpecMenuOpen] = useState(false);
  const [isCharacterSpecMenuOpen, setIsCharacterSpecMenuOpen] =
    useState(false);
  const [isCharacterReferenceMenuOpen, setIsCharacterReferenceMenuOpen] =
    useState(false);
  const [
    isPickingCharacterSpecFromCanvas,
    setIsPickingCharacterSpecFromCanvas,
  ] = useState(false);
  const [
    isPickingCharacterReferenceFromCanvas,
    setIsPickingCharacterReferenceFromCanvas,
  ] = useState(false);
  const [isIconSpecMenuOpen, setIsIconSpecMenuOpen] = useState(false);
  const [isPickingIconSpecFromCanvas, setIsPickingIconSpecFromCanvas] =
    useState(false);
  const [quickEditPanel, setQuickEditPanel] =
    useState<QuickEditPanelState | null>(null);
  const [characterAnimationPanel, setCharacterAnimationPanel] =
    useState<CharacterAnimationPanelState | null>(null);
  const [lastImageModel, setLastImageModel] = useState(DEFAULT_IMAGE_MODEL);

  const quickEditSourceLayer = quickEditPanel
    ? (layers.find((layer) => layer.id === quickEditPanel.sourceLayerId) ??
      null)
    : null;
  const characterAnimationSourceLayer = characterAnimationPanel
    ? (layers.find(
        (layer) => layer.id === characterAnimationPanel.sourceLayerId,
      ) ?? null)
    : null;
  const quickEditSizeOptions = quickEditPanel
    ? buildQuickEditSizeOptions(quickEditPanel.size)
    : [];
  const quickEditModelOptions = quickEditPanel
    ? buildQuickEditModelOptions(quickEditPanel.model)
    : [];
  const characterAnimationPrice = characterAnimationPanel
    ? calculateCharacterAnimationPrice(
        characterAnimationPanel.resolution,
        characterAnimationPanel.durationSeconds,
      )
    : 0;
  const iconDescriptionValues =
    generateDialog?.mode === 'icon'
      ? (generateDialog.iconDescriptions ?? DEFAULT_ICON_DESCRIPTIONS)
      : DEFAULT_ICON_DESCRIPTIONS;

  const openGenerateDialog = useCallback(() => {
    const placeholderWidth = 420;
    const placeholderHeight = 420;
    const worldCenter = getViewportWorldCenter({ canvasSize, viewport });
    openCanvasGenerationDialog({
      mode: 'generate',
      prompt: '',
      status: 'idle',
      composerOpen: true,
      placeholder: {
        x: worldCenter.x - placeholderWidth / 2,
        y: worldCenter.y - placeholderHeight / 2,
        width: placeholderWidth,
        height: placeholderHeight,
        originalWidth: 2048,
        originalHeight: 2048,
      },
    });
    setActiveTool('generate');
    selectSingleLayer(null);
    setQuickEditPanel(null);
  }, [
    canvasSize,
    openCanvasGenerationDialog,
    selectSingleLayer,
    setActiveTool,
    viewport,
  ]);

  const openSpecDialog = useCallback(
    (specType: SpecGenerationType) => {
      const worldCenter = getViewportWorldCenter({ canvasSize, viewport });
      openCanvasGenerationDialog({
        mode: 'spec',
        prompt: '',
        status: 'idle',
        composerOpen: true,
        specType,
        specValues: { ...DEFAULT_SPEC_FORM_VALUES[specType] },
        placeholder: {
          x: worldCenter.x - SPEC_FRAME_DISPLAY_SIZE.width / 2,
          y: worldCenter.y - SPEC_FRAME_DISPLAY_SIZE.height / 2,
          width: SPEC_FRAME_DISPLAY_SIZE.width,
          height: SPEC_FRAME_DISPLAY_SIZE.height,
          originalWidth: SPEC_FRAME_ORIGINAL_SIZE.width,
          originalHeight: SPEC_FRAME_ORIGINAL_SIZE.height,
        },
      });
      setIsSpecMenuOpen(false);
      setActiveTool('generate');
      selectSingleLayer(null);
      setQuickEditPanel(null);
    },
    [
      canvasSize,
      openCanvasGenerationDialog,
      selectSingleLayer,
      setActiveTool,
      viewport,
    ],
  );

  const openCharacterAnimationPanel = useCallback(
    (layer: CanvasLayer) => {
      if (layer.assetKind !== 'character') {
        return;
      }
      setImageContextMenu(null);
      setQuickEditPanel(null);
      setCharacterAnimationPanel({
        sourceLayerId: layer.id,
        promptText: '',
        resolution: '480p',
        ratio: 'same',
        frameCount: 32,
        durationSeconds: 4,
        status: 'idle',
      });
      selectSingleLayer(layer.id);
    },
    [selectSingleLayer, setImageContextMenu],
  );

  const openCharacterGenerationDialog = useCallback(() => {
    const worldCenter = getViewportWorldCenter({ canvasSize, viewport });
    setIsSpecMenuOpen(false);
    setIsCharacterReferenceMenuOpen(false);
    setIsPickingCharacterSpecFromCanvas(false);
    setIsPickingCharacterReferenceFromCanvas(false);
    const dimensionOptions =
      EDITOR_IMAGE_DIMENSION_OPTIONS[
        lastImageModel as keyof typeof EDITOR_IMAGE_DIMENSION_OPTIONS
      ] ?? EDITOR_IMAGE_DIMENSION_OPTIONS[DEFAULT_IMAGE_MODEL];
    openCanvasGenerationDialog({
      mode: 'character',
      prompt: '',
      status: 'idle',
      composerOpen: true,
      characterSpecReference: null,
      characterReferences: [],
      imageModel: lastImageModel,
      aspectRatio: dimensionOptions.aspectRatios[0],
      imageSize:
        dimensionOptions.imageSizes.find((size) => size === '1K') ??
        dimensionOptions.imageSizes[0],
      placeholder: {
        x: worldCenter.x - CHARACTER_FRAME_DISPLAY_SIZE.width / 2,
        y: worldCenter.y - CHARACTER_FRAME_DISPLAY_SIZE.height / 2,
        width: CHARACTER_FRAME_DISPLAY_SIZE.width,
        height: CHARACTER_FRAME_DISPLAY_SIZE.height,
        originalWidth: CHARACTER_FRAME_ORIGINAL_SIZE.width,
        originalHeight: CHARACTER_FRAME_ORIGINAL_SIZE.height,
      },
    });
    setActiveTool('character');
    selectSingleLayer(null);
    setQuickEditPanel(null);
  }, [
    canvasSize,
    lastImageModel,
    openCanvasGenerationDialog,
    selectSingleLayer,
    setActiveTool,
    viewport,
  ]);

  const openIconGenerationDialog = useCallback(() => {
    const worldCenter = getViewportWorldCenter({ canvasSize, viewport });
    setIsSpecMenuOpen(false);
    setIsCharacterReferenceMenuOpen(false);
    setIsPickingCharacterSpecFromCanvas(false);
    setIsPickingCharacterReferenceFromCanvas(false);
    setIsPickingIconSpecFromCanvas(false);
    const dimensionOptions =
      EDITOR_IMAGE_DIMENSION_OPTIONS[
        lastImageModel as keyof typeof EDITOR_IMAGE_DIMENSION_OPTIONS
      ] ?? EDITOR_IMAGE_DIMENSION_OPTIONS[DEFAULT_IMAGE_MODEL];
    openCanvasGenerationDialog({
      mode: 'icon',
      prompt: '',
      status: 'idle',
      composerOpen: true,
      iconSpecReference: null,
      iconDescriptions: [...DEFAULT_ICON_DESCRIPTIONS],
      imageModel: lastImageModel,
      aspectRatio: dimensionOptions.aspectRatios[0],
      imageSize:
        dimensionOptions.imageSizes.find((size) => size === '1K') ??
        dimensionOptions.imageSizes[0],
      placeholder: {
        x: worldCenter.x - ICON_FRAME_DISPLAY_SIZE.width / 2,
        y: worldCenter.y - ICON_FRAME_DISPLAY_SIZE.height / 2,
        width: ICON_FRAME_DISPLAY_SIZE.width,
        height: ICON_FRAME_DISPLAY_SIZE.height,
        originalWidth: ICON_FRAME_ORIGINAL_SIZE.width,
        originalHeight: ICON_FRAME_ORIGINAL_SIZE.height,
      },
    });
    setActiveTool('icon');
    selectSingleLayer(null);
    setQuickEditPanel(null);
    setCharacterAnimationPanel(null);
  }, [
    canvasSize,
    lastImageModel,
    openCanvasGenerationDialog,
    selectSingleLayer,
    setActiveTool,
    viewport,
  ]);

  const openEditDialog = useCallback(
    (sourceLayer: CanvasLayer) => {
      setMetadataLayer(null);
      setImageContextMenu(null);
      setQuickEditPanel(null);
      setGenerateDialog({
        mode: 'edit',
        prompt: sourceLayer.prompt
          ? `${sourceLayer.prompt}，在保持主体结构的基础上优化画面细节`
          : '',
        status: 'idle',
        composerOpen: true,
        sourceLayerId: sourceLayer.id,
      });
      setActiveTool('generate');
    },
    [setActiveTool, setGenerateDialog, setImageContextMenu, setMetadataLayer],
  );

  const openQuickEditPanel = useCallback(
    (sourceLayer: CanvasLayer) => {
      setImageContextMenu(null);
      setMetadataLayer(null);
      setGenerateDialog(null);
      setCharacterAnimationPanel(null);
      setQuickEditPanel({
        sourceLayerId: sourceLayer.id,
        prompt: '',
        size: formatImageSizeValue(
          sourceLayer.originalWidth,
          sourceLayer.originalHeight,
        ),
        model: sourceLayer.model?.trim() || DEFAULT_IMAGE_MODEL,
        status: 'idle',
      });
      selectSingleLayer(sourceLayer.id);
      setActiveTool('generate');
    },
    [
      selectSingleLayer,
      setActiveTool,
      setGenerateDialog,
      setImageContextMenu,
      setMetadataLayer,
    ],
  );

  const addGeneratedResultLayer = useCallback(
    (
      generated: EditorImageGenerationResult,
      options: {
        sourceLayer?: CanvasLayer;
        frame?: GenerateDialogState['placeholder'];
        assetKind?: CanvasLayer['assetKind'];
        title?: string;
        dialogId?: string;
        generationInputs?: CanvasGenerationInputs;
      } = {},
    ) => {
      layerCounterRef.current += 1;
      const generatedIndex = layerCounterRef.current;
      const nextLayer = createGeneratedResultLayer({
        generated,
        generatedIndex,
        canvasSize,
        viewport,
        sourceLayer: options.sourceLayer,
        frame: options.frame,
        assetKind: options.assetKind,
        title: options.title,
        generationInputs: options.generationInputs,
      });

      appendCanvasLayersWithResources([nextLayer]);
      selectSingleLayer(nextLayer.id);
      setActiveSidebarPanel('layers');
      if (options.sourceLayer) {
        setGenerateDialog(null);
        setActiveTool('select');
      } else if (options.dialogId) {
        updateCanvasGenerationDialogById(options.dialogId, (currentDialog) =>
          currentDialog.mode === 'character' || currentDialog.mode === 'icon'
            ? null
            : {
                ...currentDialog,
                status: 'idle',
                composerOpen: true,
                generatedLayerId: nextLayer.id,
                placeholder: undefined,
                errorMessage: undefined,
              },
        );
      }
      if (options.sourceLayer) {
        fitLayers([options.sourceLayer, nextLayer]);
      }
    },
    [
      appendCanvasLayersWithResources,
      canvasSize,
      fitLayers,
      layerCounterRef,
      selectSingleLayer,
      setActiveSidebarPanel,
      setActiveTool,
      setGenerateDialog,
      updateCanvasGenerationDialogById,
      viewport,
    ],
  );

  const addQuickEditResultLayer = useCallback(
    (
      generated: EditorImageGenerationResult,
      sourceLayer: CanvasLayer,
      generationInputs: CanvasGenerationInputs,
    ) => {
      layerCounterRef.current += 1;
      const generatedIndex = layerCounterRef.current;
      const nextLayer = createQuickEditResultLayer({
        generated,
        generatedIndex,
        sourceLayer,
        generationInputs,
      });

      appendCanvasLayersWithResources([nextLayer]);
      selectSingleLayer(nextLayer.id);
      setActiveSidebarPanel('layers');
      setQuickEditPanel(null);
      setActiveTool('select');
      fitLayers([sourceLayer, nextLayer]);
    },
    [
      appendCanvasLayersWithResources,
      fitLayers,
      layerCounterRef,
      selectSingleLayer,
      setActiveSidebarPanel,
      setActiveTool,
    ],
  );

  const addIconSpritesheetResultLayers = useCallback(
    (
      generated: EditorIconSpritesheetGenerationResult,
      iconResults: EditorIconSpritesheetIconResult[],
      generationInputs: CanvasGenerationInputs,
      frame?: GenerateDialogState['placeholder'],
      dialogId?: string,
    ) => {
      const startIndex = layerCounterRef.current + 1;
      const nextLayers = createIconSpritesheetResultLayers({
        generated,
        iconResults,
        startIndex,
        canvasSize,
        viewport,
        generationInputs,
        frame,
      });

      if (!nextLayers.length) {
        return;
      }
      layerCounterRef.current += nextLayers.length;
      appendCanvasLayersWithResources(nextLayers);
      selectSingleLayer(nextLayers[0]?.id ?? null);
      setActiveSidebarPanel('layers');
      if (dialogId) {
        removeCanvasGenerationDialogById(dialogId);
      }
      setActiveTool('select');
    },
    [
      appendCanvasLayersWithResources,
      canvasSize,
      layerCounterRef,
      removeCanvasGenerationDialogById,
      selectSingleLayer,
      setActiveSidebarPanel,
      setActiveTool,
      viewport,
    ],
  );

  const pickCharacterSpecFromLayer = useCallback(
    (layer: CanvasLayer) => {
      setGenerateDialog((currentDialog) =>
        currentDialog?.mode === 'character'
          ? {
              ...setFailedCharacterGenerationIdle(currentDialog),
              characterSpecReference: createCanvasLayerReference(layer),
              composerOpen: true,
            }
          : currentDialog,
      );
      setIsPickingCharacterSpecFromCanvas(false);
      setIsCharacterSpecMenuOpen(false);
      setImageContextMenu(null);
    },
    [setGenerateDialog, setImageContextMenu],
  );

  const pickCharacterReferenceFromLayer = useCallback(
    (layer: CanvasLayer) => {
      setGenerateDialog((currentDialog) =>
        currentDialog?.mode === 'character'
          ? {
              ...setFailedCharacterGenerationIdle(currentDialog),
              characterReferences: [
                ...(currentDialog.characterReferences ?? []),
                createCanvasLayerReference(layer),
              ],
              composerOpen: true,
            }
          : currentDialog,
      );
      setIsPickingCharacterReferenceFromCanvas(false);
      setImageContextMenu(null);
    },
    [setGenerateDialog, setImageContextMenu],
  );

  const pickIconSpecFromLayer = useCallback(
    (layer: CanvasLayer) => {
      if (layer.assetKind !== 'icon-spec') {
        return;
      }
      setGenerateDialog((currentDialog) =>
        currentDialog?.mode === 'icon'
          ? {
              ...setFailedIconGenerationIdle(currentDialog),
              iconSpecReference: createCanvasLayerReference(layer),
              composerOpen: true,
            }
          : currentDialog,
      );
      setIsPickingIconSpecFromCanvas(false);
      setIsIconSpecMenuOpen(false);
      setImageContextMenu(null);
    },
    [setGenerateDialog, setImageContextMenu],
  );

  const updateIconDescription = useCallback(
    (index: number, value: string) => {
      setGenerateDialog((currentDialog) =>
        currentDialog?.mode === 'icon'
          ? {
              ...setFailedIconGenerationIdle(currentDialog),
              iconDescriptions: (
                currentDialog.iconDescriptions ?? DEFAULT_ICON_DESCRIPTIONS
              ).map((description, descriptionIndex) =>
                descriptionIndex === index ? value : description,
              ),
            }
          : currentDialog,
      );
    },
    [setGenerateDialog],
  );

  const addIconDescription = useCallback(() => {
    setGenerateDialog((currentDialog) => {
      if (currentDialog?.mode !== 'icon') {
        return currentDialog;
      }
      const descriptions =
        currentDialog.iconDescriptions ?? DEFAULT_ICON_DESCRIPTIONS;
      if (descriptions.length >= ICON_DESCRIPTION_LIMIT) {
        return currentDialog;
      }
      return {
        ...setFailedIconGenerationIdle(currentDialog),
        iconDescriptions: [...descriptions, ''],
      };
    });
  }, [setGenerateDialog]);

  const submitIconSpritesheetGeneration = useCallback(
    async (dialog: GenerateDialogState) => {
      if (dialog.mode !== 'icon') {
        return;
      }
      const canvasDialog = isCanvasGenerationDialog(dialog) ? dialog : null;
      const setSubmittingIconDialog = (
        nextDialog: CanvasGenerationDialogState,
      ) => {
        updateCanvasGenerationDialogById(nextDialog.id, () => nextDialog);
      };
      const iconDescriptions = (
        dialog.iconDescriptions ?? DEFAULT_ICON_DESCRIPTIONS
      )
        .map((description) => description.trim())
        .filter(Boolean);
      if (!dialog.iconSpecReference) {
        if (canvasDialog) {
          setSubmittingIconDialog({
            ...canvasDialog,
            status: 'failed',
            composerOpen: true,
            errorMessage: '请选择图标素材规范',
          });
        }
        return;
      }
      if (!iconDescriptions.length) {
        if (canvasDialog) {
          setSubmittingIconDialog({
            ...canvasDialog,
            status: 'failed',
            composerOpen: true,
            errorMessage: '请填写素材描述',
          });
        }
        return;
      }

      if (!canvasDialog) {
        return;
      }

      setSubmittingIconDialog({
        ...canvasDialog,
        iconDescriptions,
        status: 'generating',
        composerOpen: false,
        errorMessage: undefined,
      });

      try {
        const generated = await generateEditorIconSpritesheet({
          referenceImageSrc: dialog.iconSpecReference.src,
          iconDescriptions,
          model: dialog.imageModel ?? DEFAULT_IMAGE_MODEL,
          aspectRatio: dialog.aspectRatio ?? '1:1',
          imageSize: dialog.imageSize ?? '1K',
        });
        setLastImageModel(dialog.imageModel ?? DEFAULT_IMAGE_MODEL);
        addIconSpritesheetResultLayers(
          generated,
          generated.iconImageSrcs,
          buildIconGenerationInputs(iconDescriptions, dialog.iconSpecReference),
          getGeneratingDialogPlaceholder(dialog),
          canvasDialog.id,
        );
      } catch (error) {
        setSubmittingIconDialog({
          ...canvasDialog,
          iconDescriptions,
          status: 'failed',
          composerOpen: true,
          errorMessage: resolveImageGenerationErrorMessage(error),
        });
      }
    },
    [
      addIconSpritesheetResultLayers,
      getGeneratingDialogPlaceholder,
      updateCanvasGenerationDialogById,
    ],
  );

  const submitQuickEdit = useCallback(async () => {
    if (!quickEditPanel || !quickEditSourceLayer) {
      return;
    }

    const normalizedPrompt = quickEditPanel.prompt.trim() || '快速编辑图片';
    setQuickEditPanel({
      ...quickEditPanel,
      prompt: normalizedPrompt,
      status: 'generating',
      errorMessage: undefined,
    });

    try {
      const referenceImageSrc = await resolveEditorImageReferenceDataUrl(
        quickEditSourceLayer.src,
      );
      const generated = await generateEditorImage({
        prompt: normalizedPrompt,
        size: quickEditPanel.size,
        kind: 'quick-edit',
        model: quickEditPanel.model,
        referenceImageSrcs: [referenceImageSrc],
      });
      addQuickEditResultLayer(
        generated,
        quickEditSourceLayer,
        buildEditGenerationInputs(
          '快速编辑提示词',
          normalizedPrompt,
          quickEditSourceLayer,
        ),
      );
    } catch (error) {
      setQuickEditPanel({
        ...quickEditPanel,
        prompt: normalizedPrompt,
        status: 'failed',
        errorMessage: resolveImageGenerationErrorMessage(error),
      });
    }
  }, [addQuickEditResultLayer, quickEditPanel, quickEditSourceLayer]);

  const submitImageGeneration = useCallback(
    async (dialog: GenerateDialogState) => {
      const normalizedPrompt =
        dialog.prompt.trim() ||
        (dialog.mode === 'edit' ? '修改当前图片' : 'AI 生成图片');
      const canvasDialog = isCanvasGenerationDialog(dialog) ? dialog : null;
      if (canvasDialog) {
        updateCanvasGenerationDialogById(canvasDialog.id, (currentDialog) => ({
          ...currentDialog,
          prompt: normalizedPrompt,
          status: 'generating',
          composerOpen: false,
        }));
      } else {
        setGenerateDialog({
          ...dialog,
          prompt: normalizedPrompt,
          status: 'generating',
          composerOpen: dialog.mode === 'edit',
        });
      }

      try {
        if (dialog.mode === 'edit') {
          const sourceLayer = layers.find(
            (layer) => layer.id === dialog.sourceLayerId,
          );
          if (!sourceLayer) {
            throw new Error('未找到要修改的图片');
          }
          const referenceImageSrc = await resolveEditorImageReferenceDataUrl(
            sourceLayer.src,
          );
          const generated = await editEditorImage({
            prompt: normalizedPrompt,
            sourceImageSrc: referenceImageSrc,
          });
          addGeneratedResultLayer(generated, {
            sourceLayer,
            generationInputs: buildEditGenerationInputs(
              '修改要求',
              normalizedPrompt,
              sourceLayer,
            ),
          });
        } else if (dialog.mode === 'spec') {
          const specType = dialog.specType ?? 'custom';
          const specValues =
            dialog.specValues ?? DEFAULT_SPEC_FORM_VALUES[specType];
          const specPrompt = buildSpecPrompt(
            specType,
            specValues,
            Boolean(dialog.specReference?.src),
          );
          const generated = await generateEditorImage({
            prompt: specPrompt,
            size: SPEC_GENERATION_SIZE,
            model: DEFAULT_IMAGE_MODEL,
            kind: 'spec',
            ...(dialog.specReference?.src
              ? { referenceImageSrcs: [dialog.specReference.src] }
              : {}),
          });
          addGeneratedResultLayer(generated, {
            frame: getGeneratingDialogPlaceholder(dialog),
            assetKind: specType === 'icon' ? 'icon-spec' : 'spec',
            title: `${SPEC_TYPE_LABEL[specType]} ${layerCounterRef.current + 1}`,
            dialogId: canvasDialog?.id,
            generationInputs: buildSpecGenerationInputs(
              specType,
              specValues,
              dialog.specReference,
            ),
          });
        } else if (dialog.mode === 'character') {
          const referenceImageSrcs = [
            dialog.characterSpecReference?.src,
            ...(dialog.characterReferences ?? []).map(
              (reference) => reference.src,
            ),
          ].filter((src): src is string => Boolean(src));
          const generated = await generateEditorImage({
            prompt: normalizedPrompt,
            kind: 'character',
            model: dialog.imageModel ?? DEFAULT_IMAGE_MODEL,
            aspectRatio: dialog.aspectRatio ?? '1:1',
            imageSize: dialog.imageSize ?? '1K',
            ...(referenceImageSrcs.length ? { referenceImageSrcs } : {}),
          });
          setLastImageModel(dialog.imageModel ?? DEFAULT_IMAGE_MODEL);
          addGeneratedResultLayer(generated, {
            frame: getGeneratingDialogPlaceholder(dialog),
            assetKind: 'character',
            title: `角色形象 ${layerCounterRef.current + 1}`,
            dialogId: canvasDialog?.id,
            generationInputs: buildCharacterGenerationInputs(
              normalizedPrompt,
              dialog.characterSpecReference,
              dialog.characterReferences,
            ),
          });
        } else {
          const generated = await generateEditorImage({
            prompt: normalizedPrompt,
          });
          addGeneratedResultLayer(generated, {
            frame: getGeneratingDialogPlaceholder(dialog),
            dialogId: canvasDialog?.id,
            generationInputs: buildImageGenerationInputs(normalizedPrompt),
          });
        }
      } catch (error) {
        if (canvasDialog) {
          updateCanvasGenerationDialogById(canvasDialog.id, () => ({
            ...canvasDialog,
            prompt: normalizedPrompt,
            status: 'failed',
            composerOpen: true,
            errorMessage: resolveImageGenerationErrorMessage(error),
          }));
        } else {
          setGenerateDialog({
            ...dialog,
            prompt: normalizedPrompt,
            status: 'failed',
            composerOpen: true,
            errorMessage: resolveImageGenerationErrorMessage(error),
          });
        }
      }
    },
    [
      addGeneratedResultLayer,
      getGeneratingDialogPlaceholder,
      layerCounterRef,
      layers,
      setGenerateDialog,
      updateCanvasGenerationDialogById,
    ],
  );

  const updateSpecFormValue = useCallback(
    (key: keyof SpecFormValues, value: string) => {
      setGenerateDialog((currentDialog) => {
        if (currentDialog?.mode !== 'spec') {
          return currentDialog;
        }
        const specType = currentDialog.specType ?? 'custom';
        return {
          ...currentDialog,
          specValues: {
            ...DEFAULT_SPEC_FORM_VALUES[specType],
            ...currentDialog.specValues,
            [key]: value,
          },
          status:
            currentDialog.status === 'failed' ? 'idle' : currentDialog.status,
          errorMessage:
            currentDialog.status === 'failed'
              ? undefined
              : currentDialog.errorMessage,
        };
      });
    },
    [setGenerateDialog],
  );

  const updateCharacterAnimationDuration = useCallback(
    (frameCountValue: string) => {
      const option = CHARACTER_ANIMATION_DURATION_OPTIONS.find(
        (item) => String(item.frameCount) === frameCountValue,
      );
      if (!option) {
        return;
      }
      setCharacterAnimationPanel((currentPanel) =>
        currentPanel
          ? {
              ...currentPanel,
              frameCount: option.frameCount,
              durationSeconds: option.durationSeconds,
              status:
                currentPanel.status === 'failed' ? 'idle' : currentPanel.status,
              errorMessage:
                currentPanel.status === 'failed'
                  ? undefined
                  : currentPanel.errorMessage,
            }
          : currentPanel,
      );
    },
    [],
  );

  const submitCharacterAnimation = useCallback(async () => {
    if (!characterAnimationPanel || !characterAnimationSourceLayer) {
      return;
    }
    const promptText = characterAnimationPanel.promptText.trim();
    const nextPanel = {
      ...characterAnimationPanel,
      promptText,
      status: 'generating' as const,
      errorMessage: undefined,
      result: undefined,
    };
    setCharacterAnimationPanel(nextPanel);

    try {
      const result = await generateEditorCharacterAnimation({
        sourceLayerId: characterAnimationSourceLayer.id,
        sourceImageSrc: resolveCharacterAnimationSourceImageSrc(
          characterAnimationSourceLayer,
        ),
        sourceWidth: characterAnimationSourceLayer.originalWidth,
        sourceHeight: characterAnimationSourceLayer.originalHeight,
        promptText,
        resolution: nextPanel.resolution,
        ratio: nextPanel.ratio,
        frameCount: nextPanel.frameCount,
        durationSeconds: nextPanel.durationSeconds,
        priceMudPoints: calculateCharacterAnimationPrice(
          nextPanel.resolution,
          nextPanel.durationSeconds,
        ),
        model: CHARACTER_ANIMATION_MODEL,
      });
      setCharacterAnimationPanel((currentPanel) =>
        currentPanel
          ? {
              ...currentPanel,
              status: 'completed',
              result,
            }
          : currentPanel,
      );
    } catch (error) {
      setCharacterAnimationPanel((currentPanel) =>
        currentPanel
          ? {
              ...currentPanel,
              status: 'failed',
              errorMessage:
                error instanceof Error && error.message.trim()
                  ? error.message
                  : '生成角色动画失败',
            }
          : currentPanel,
      );
    }
  }, [characterAnimationPanel, characterAnimationSourceLayer]);

  const hideGeneratedLayerPanelAfterBlur = useCallback(() => {
    setGenerateDialog((currentDialog) =>
      (currentDialog?.mode === 'generate' ||
        currentDialog?.mode === 'spec' ||
        currentDialog?.mode === 'character' ||
        currentDialog?.mode === 'icon') &&
      currentDialog.status !== 'generating'
        ? {
            ...currentDialog,
            composerOpen: false,
          }
        : currentDialog,
    );
  }, [setGenerateDialog]);

  const closeGenerateComposer = useCallback(() => {
    setGenerateDialog((currentDialog) =>
      currentDialog?.mode === 'generate'
        ? {
            ...currentDialog,
            composerOpen: false,
          }
        : currentDialog,
    );
    setActiveTool('select');
  }, [setActiveTool, setGenerateDialog]);

  const clearDeletedLayerGenerationState = useCallback(
    (targetLayerId: string) => {
      setQuickEditPanel((currentPanel) =>
        currentPanel?.sourceLayerId === targetLayerId ? null : currentPanel,
      );
      setCharacterAnimationPanel((currentPanel) =>
        currentPanel?.sourceLayerId === targetLayerId ? null : currentPanel,
      );
      setGenerateDialog((currentDialog) =>
        currentDialog?.mode === 'edit' &&
        currentDialog.sourceLayerId === targetLayerId
          ? null
          : currentDialog,
      );
      removeCanvasGenerationDialogsByLayerId(targetLayerId);
    },
    [removeCanvasGenerationDialogsByLayerId, setGenerateDialog],
  );

  return useMemo(
    () => ({
      quickEditPanel,
      setQuickEditPanel,
      quickEditSourceLayer,
      quickEditSizeOptions,
      quickEditModelOptions,
      characterAnimationPanel,
      setCharacterAnimationPanel,
      characterAnimationSourceLayer,
      characterAnimationPrice,
      iconDescriptionValues,
      isSpecMenuOpen,
      setIsSpecMenuOpen,
      isCharacterSpecMenuOpen,
      setIsCharacterSpecMenuOpen,
      isCharacterReferenceMenuOpen,
      setIsCharacterReferenceMenuOpen,
      isPickingCharacterSpecFromCanvas,
      setIsPickingCharacterSpecFromCanvas,
      isPickingCharacterReferenceFromCanvas,
      setIsPickingCharacterReferenceFromCanvas,
      isIconSpecMenuOpen,
      setIsIconSpecMenuOpen,
      isPickingIconSpecFromCanvas,
      setIsPickingIconSpecFromCanvas,
      openGenerateDialog,
      openSpecDialog,
      openCharacterAnimationPanel,
      openCharacterGenerationDialog,
      openIconGenerationDialog,
      openEditDialog,
      openQuickEditPanel,
      pickCharacterSpecFromLayer,
      pickCharacterReferenceFromLayer,
      pickIconSpecFromLayer,
      submitIconSpritesheetGeneration,
      submitQuickEdit,
      submitImageGeneration,
      updateSpecFormValue,
      updateIconDescription,
      addIconDescription,
      updateCharacterAnimationDuration,
      rememberImageModel: setLastImageModel,
      submitCharacterAnimation,
      hideGeneratedLayerPanelAfterBlur,
      closeGenerateComposer,
      clearDeletedLayerGenerationState,
    }),
    [
      addIconDescription,
      characterAnimationPanel,
      characterAnimationPrice,
      characterAnimationSourceLayer,
      clearDeletedLayerGenerationState,
      closeGenerateComposer,
      hideGeneratedLayerPanelAfterBlur,
      iconDescriptionValues,
      isCharacterReferenceMenuOpen,
      isCharacterSpecMenuOpen,
      isIconSpecMenuOpen,
      isPickingCharacterReferenceFromCanvas,
      isPickingCharacterSpecFromCanvas,
      isPickingIconSpecFromCanvas,
      isSpecMenuOpen,
      openCharacterAnimationPanel,
      openCharacterGenerationDialog,
      openEditDialog,
      openGenerateDialog,
      openIconGenerationDialog,
      openQuickEditPanel,
      openSpecDialog,
      pickCharacterReferenceFromLayer,
      pickCharacterSpecFromLayer,
      pickIconSpecFromLayer,
      quickEditModelOptions,
      quickEditPanel,
      quickEditSizeOptions,
      quickEditSourceLayer,
      submitCharacterAnimation,
      submitIconSpritesheetGeneration,
      submitImageGeneration,
      submitQuickEdit,
      updateCharacterAnimationDuration,
      updateIconDescription,
      updateSpecFormValue,
    ],
  );
}