import {
  type ChangeEvent,
  type Dispatch,
  type SetStateAction,
  useCallback,
  useRef,
  useState,
} from 'react';

import { ApiClientError } from '../../services/apiClient';
import { uploadEditorMediaAssetFile } from '../../services/image-editor/editorMediaAssetUploadClient';
import {
  createEditorAsset,
  createEditorAssetFolder,
  createEditorProjectResource,
} from '../../services/image-editor/editorProjectClient';
import { uploadEditorSeedanceReferenceFile } from '../../services/image-editor/editorReferenceUploadClient';
import {
  EDITOR_UPLOAD_ASSET_FOLDER_LABEL,
  resolvePreferredAssetUploadFolder,
  resolveUploadAssetFolder,
} from './ImageCanvasAssetLibraryModel';
import type {
  CanvasAssetKind,
  CanvasHistoryAction,
  CanvasLayer,
  CanvasMediaType,
  CanvasTool,
  CanvasViewport,
  CharacterReferenceImage,
  EditorAsset,
  EditorAssetFolder,
  GenerateDialogState,
  QuickEditPanelState,
  UploadTarget,
} from './ImageCanvasEditorTypes';
import {
  isImageFile,
  isSeedanceReferenceAudioFile,
  isSeedanceReferenceImageFile,
  isSeedanceReferenceVideoFile,
  probeImageFileDimensions,
  probeMediaDurationSeconds,
  probeMediaFileMetadata,
  readFileAsDataUrl,
  readImageFileAsDataUrl,
  resolveEditorAssetUploadMediaType,
  SEEDANCE_REFERENCE_FILE_LIMITS,
} from './ImageCanvasFileModel';
import {
  applyGenerationReferenceUpload,
  applyMeasuredUploadAssetSize,
  applyPersistedUploadAsset,
  applyQuickEditReferenceUpload,
  applyUploadAssetCreateFailure,
  applyUploadAssetCreatePending,
  applyUploadAssetReadFailure,
  applyUploadAssetReadSuccess,
  bindUploadLayerToPersistedAsset,
  buildUploadedMediaGenerationInputs,
  createUploadCanvasLayer,
  createUploadedGenerationReference,
  createUploadingAssetPlaceholder,
  expandUploadFolder,
  resizeUploadCanvasLayerToImage,
  resolveUploadFolderId,
} from './ImageCanvasUploadModel';
import { resolveUploadedAssetKind } from './ImageCanvasUploadUtils';

type UploadFilesOptions = {
  folderId?: string;
  canvasPoint?: { x: number; y: number };
  addToCanvas?: boolean;
};

type UploadRequestOptions = {
  addToCanvas?: boolean;
  folderId?: string;
};

type UploadAssetFileOptions = UploadFilesOptions & {
  uploadIndex: number;
};

class ImageReferenceCapacityChangedError extends Error {}

export type ImageReferenceUploadCapacity = {
  label: string;
  currentCount: number;
  limit: number;
  contextId?: string;
};

type ImageReferenceUploadReservation = {
  target: UploadTarget;
  count: number;
  contextId?: string;
  key: string;
  release: () => void;
  contextWarningShown: boolean;
};

type UseImageCanvasUploadWorkflowOptions = {
  canAccessProtectedData: boolean;
  openEditorLoginModal: (postLoginAction?: (() => void) | null) => void;
  projectId?: string | null;
  assetFolders: EditorAssetFolder[];
  activeUploadFolderId: string;
  canvasSize: { width: number; height: number };
  viewport: CanvasViewport;
  activeTool: CanvasTool;
  allocateUploadIndex: () => number;
  setAssetFolders: Dispatch<SetStateAction<EditorAssetFolder[]>>;
  setAssets: Dispatch<SetStateAction<EditorAsset[]>>;
  setLayers: Dispatch<SetStateAction<CanvasLayer[]>>;
  setGenerateDialog: Dispatch<SetStateAction<GenerateDialogState | null>>;
  setQuickEditPanel: Dispatch<SetStateAction<QuickEditPanelState | null>>;
  resolveImageReferenceUploadCapacity: (
    target: UploadTarget,
  ) => ImageReferenceUploadCapacity | null;
  appendUiAssetExtractionReferences: (
    references: CharacterReferenceImage[],
  ) => void;
  appendCanvasLayersWithResources: (nextLayers: CanvasLayer[]) => void;
  captureCanvasHistory: (action: CanvasHistoryAction) => void;
  selectSingleLayer: (layerId: string | null) => void;
  refreshAssetLibrary?: () => Promise<unknown> | void;
};

function isEditorAuthError(error: unknown) {
  return (
    error instanceof ApiClientError &&
    (error.status === 401 || error.status === 403)
  );
}

function resolveReferenceFallbackSize(mediaType: CanvasMediaType) {
  if (mediaType === 'video') {
    return { width: 560, height: 315 };
  }
  if (mediaType === 'audio') {
    return { width: 420, height: 120 };
  }
  return { width: 420, height: 315 };
}

export function useImageCanvasUploadWorkflow({
  canAccessProtectedData,
  openEditorLoginModal,
  projectId,
  assetFolders,
  activeUploadFolderId,
  canvasSize,
  viewport,
  activeTool,
  allocateUploadIndex,
  setAssetFolders,
  setAssets,
  setLayers,
  setGenerateDialog,
  setQuickEditPanel,
  resolveImageReferenceUploadCapacity,
  appendUiAssetExtractionReferences,
  appendCanvasLayersWithResources,
  captureCanvasHistory,
  selectSingleLayer,
  refreshAssetLibrary,
}: UseImageCanvasUploadWorkflowOptions) {
  const uploadInputRef = useRef<HTMLInputElement | null>(null);
  const canAccessProtectedDataRef = useRef(canAccessProtectedData);
  const uploadTargetRef = useRef<UploadTarget>('asset');
  const uploadRequestOptionsRef = useRef<UploadRequestOptions>({});
  const pendingImageReferenceUploadsRef = useRef<Record<string, number>>({});
  const uploadAssetFolderCreatePromiseRef = useRef<Promise<string> | null>(
    null,
  );
  const [uploadTarget, setUploadTargetState] = useState<UploadTarget>('asset');
  const [
    pendingImageReferenceUploadCount,
    setPendingImageReferenceUploadCount,
  ] = useState(0);

  canAccessProtectedDataRef.current = canAccessProtectedData;

  const setUploadTarget: Dispatch<SetStateAction<UploadTarget>> = useCallback(
    (nextTarget) => {
      const resolvedTarget =
        typeof nextTarget === 'function'
          ? nextTarget(uploadTargetRef.current)
          : nextTarget;
      uploadTargetRef.current = resolvedTarget;
      setUploadTargetState(resolvedTarget);
    },
    [],
  );

  const showImageReferenceCapacityWarning = useCallback(
    (capacity: ImageReferenceUploadCapacity, remaining: number) => {
      window.alert(
        `${capacity.label}最多允许 ${capacity.limit} 张，当前已有 ${capacity.currentCount} 张，本次最多还能选择 ${Math.max(0, remaining)} 张`,
      );
    },
    [],
  );

  const reserveImageReferenceUpload = useCallback(
    (target: UploadTarget, count: number) => {
      const capacity = resolveImageReferenceUploadCapacity(target);
      const key = `${target}\u0000${capacity?.contextId ?? ''}`;
      const pending = pendingImageReferenceUploadsRef.current[key] ?? 0;
      if (capacity) {
        const remaining = capacity.limit - capacity.currentCount - pending;
        if (count > remaining) {
          showImageReferenceCapacityWarning(capacity, remaining);
          return null;
        }
      }
      pendingImageReferenceUploadsRef.current[key] = pending + count;
      setPendingImageReferenceUploadCount((current) => current + count);
      let released = false;
      const reservation: ImageReferenceUploadReservation = {
        target,
        count,
        contextId: capacity?.contextId,
        key,
        contextWarningShown: false,
        release: () => {
          if (released) {
            return;
          }
          released = true;
          const current = pendingImageReferenceUploadsRef.current[key] ?? 0;
          pendingImageReferenceUploadsRef.current[key] = Math.max(
            0,
            current - count,
          );
          setPendingImageReferenceUploadCount((currentCount) =>
            Math.max(0, currentCount - count),
          );
        },
      };
      return reservation;
    },
    [resolveImageReferenceUploadCapacity, showImageReferenceCapacityWarning],
  );

  const validateImageReferenceUploadReservation = useCallback(
    (reservation: ImageReferenceUploadReservation) => {
      const capacity = resolveImageReferenceUploadCapacity(reservation.target);
      if (!capacity) {
        if (reservation.contextId === undefined) {
          return true;
        }
        if (!reservation.contextWarningShown) {
          reservation.contextWarningShown = true;
          window.alert(
            '参考图上传目标已关闭或切换，本次结果不会添加到其他面板',
          );
        }
        return false;
      }
      if (capacity.contextId !== reservation.contextId) {
        if (!reservation.contextWarningShown) {
          reservation.contextWarningShown = true;
          window.alert(
            '参考图上传目标已关闭或切换，本次结果不会添加到其他面板',
          );
        }
        return false;
      }
      const pending =
        pendingImageReferenceUploadsRef.current[reservation.key] ?? 0;
      const remaining = capacity.limit - capacity.currentCount;
      if (pending <= remaining) {
        return true;
      }
      showImageReferenceCapacityWarning(capacity, remaining);
      return false;
    },
    [resolveImageReferenceUploadCapacity, showImageReferenceCapacityWarning],
  );

  const createPersistedReference = useCallback(
    async ({
      idPrefix,
      index,
      file,
      fallbackLabel,
      imageSrc,
      mediaType = 'image',
      mimeType,
      sizeBytes,
      durationSeconds,
      objectKey,
      assetObjectId,
      reservation,
      authoritativeAssetKind,
    }: {
      idPrefix: string;
      index?: number;
      file: File;
      fallbackLabel: string;
      imageSrc: string;
      mediaType?: CanvasMediaType;
      mimeType?: string;
      sizeBytes?: number;
      durationSeconds?: number;
      objectKey?: string | null;
      assetObjectId?: string | null;
      reservation?: ImageReferenceUploadReservation;
      authoritativeAssetKind?: CanvasAssetKind;
    }): Promise<CharacterReferenceImage> => {
      const resolvedMediaType = mediaType ?? 'image';
      let persistedImageSrc = imageSrc;
      let persistedObjectKey = objectKey;
      let persistedAssetObjectId = assetObjectId;
      if (resolvedMediaType === 'image' && !persistedObjectKey) {
        const uploadedImage = await uploadEditorMediaAssetFile(file, 'image');
        persistedImageSrc = uploadedImage.legacyPublicPath;
        persistedObjectKey = uploadedImage.objectKey;
        persistedAssetObjectId = uploadedImage.assetObjectId;
      }
      const fallbackSize = resolveReferenceFallbackSize(resolvedMediaType);
      const imageDimensions =
        resolvedMediaType === 'image'
          ? await probeImageFileDimensions(file).catch(() => null)
          : null;
      const width = imageDimensions?.width ?? fallbackSize.width;
      const height = imageDimensions?.height ?? fallbackSize.height;
      if (
        reservation &&
        !validateImageReferenceUploadReservation(reservation)
      ) {
        throw new ImageReferenceCapacityChangedError();
      }
      const assetKind =
        authoritativeAssetKind ?? resolveUploadedAssetKind(resolvedMediaType);
      const generationInputs = buildUploadedMediaGenerationInputs(
        resolvedMediaType,
        durationSeconds,
      );
      if (projectId) {
        const resource = await createEditorProjectResource(projectId, {
          imageSrc: persistedImageSrc,
          ...(persistedObjectKey ? { objectKey: persistedObjectKey } : {}),
          ...(persistedAssetObjectId
            ? { assetObjectId: persistedAssetObjectId }
            : {}),
          width,
          height,
          sourceType: 'uploaded',
          assetKind,
          generationInputs,
        });
        return createUploadedGenerationReference({
          idPrefix,
          index,
          fileName: file.name,
          fallbackLabel,
          imageSrc: persistedImageSrc,
          mediaType: resolvedMediaType,
          mimeType,
          sizeBytes,
          durationSeconds,
          objectKey: persistedObjectKey,
          assetObjectId: persistedAssetObjectId,
          resourceId: resource.resourceId,
        });
      }

      const uploadFolderId = resolveUploadFolderId({
        assetFolders,
        activeUploadFolderId,
      });
      const asset = await createEditorAsset({
        folderId: uploadFolderId,
        label: file.name || fallbackLabel,
        imageSrc: persistedImageSrc,
        ...(persistedObjectKey ? { objectKey: persistedObjectKey } : {}),
        ...(persistedAssetObjectId
          ? { assetObjectId: persistedAssetObjectId }
          : {}),
        width,
        height,
        sourceType: 'uploaded',
        assetKind,
        generationInputs,
      });
      return createUploadedGenerationReference({
        idPrefix,
        index,
        fileName: file.name,
        fallbackLabel,
        imageSrc: persistedImageSrc,
        mediaType: resolvedMediaType,
        mimeType,
        sizeBytes,
        durationSeconds,
        objectKey: persistedObjectKey,
        assetObjectId: persistedAssetObjectId,
        sourceAssetId: asset.assetId,
      });
    },
    [
      activeUploadFolderId,
      assetFolders,
      projectId,
      validateImageReferenceUploadReservation,
    ],
  );

  const persistReferenceUploads = useCallback(
    async (
      inputs: Array<{
        idPrefix: string;
        index?: number;
        file: File;
        fallbackLabel: string;
        imageSrc: string;
        mediaType?: CanvasMediaType;
        mimeType?: string;
        sizeBytes?: number;
        durationSeconds?: number;
        objectKey?: string | null;
        assetObjectId?: string | null;
        authoritativeAssetKind?: CanvasAssetKind;
      }>,
      reservation?: ImageReferenceUploadReservation,
    ) => {
      const results = await Promise.allSettled(
        inputs.map((input) =>
          createPersistedReference({ ...input, reservation }),
        ),
      );
      const references = results.flatMap((result) =>
        result.status === 'fulfilled' ? [result.value] : [],
      );
      const errors = results.flatMap((result) =>
        result.status === 'rejected' ? [result.reason] : [],
      );
      if (references.length > 0) {
        void Promise.resolve(refreshAssetLibrary?.()).catch(() => undefined);
      }
      if (errors.length === 0) {
        return references;
      }
      const authError = errors.find(isEditorAuthError);
      if (authError) {
        openEditorLoginModal();
        window.alert(
          references.length > 0
            ? `部分参考图保存失败，已保留成功的 ${references.length} 张；请登录后重试其余图片`
            : '请先登录后再上传参考图',
        );
      } else if (
        !errors.every(
          (error) => error instanceof ImageReferenceCapacityChangedError,
        )
      ) {
        window.alert(
          references.length > 0
            ? `部分参考图保存失败，已保留成功的 ${references.length} 张`
            : '参考图保存失败，请稍后重试',
        );
      }
      return references;
    },
    [createPersistedReference, openEditorLoginModal, refreshAssetLibrary],
  );

  const addCharacterSpecReferenceFiles = useCallback(
    async (files: FileList | File[]) => {
      const imageFile = Array.from(files).find(isImageFile);
      if (!imageFile) {
        window.alert('请选择图片文件');
        return;
      }
      const reservation = reserveImageReferenceUpload('character-spec', 1);
      if (!reservation) {
        return;
      }
      try {
        const imageSrc = await readImageFileAsDataUrl(imageFile);
        if (!validateImageReferenceUploadReservation(reservation)) {
          return;
        }
        const references = await persistReferenceUploads(
          [
            {
              idPrefix: 'upload-character-spec',
              file: imageFile,
              fallbackLabel: '角色规范',
              imageSrc,
            },
          ],
          reservation,
        );
        if (
          references.length === 0 ||
          !validateImageReferenceUploadReservation(reservation)
        ) {
          return;
        }
        setGenerateDialog((currentDialog) =>
          applyGenerationReferenceUpload({
            dialog: currentDialog,
            target: 'character-spec',
            references,
          }),
        );
      } finally {
        reservation.release();
      }
    },
    [
      persistReferenceUploads,
      reserveImageReferenceUpload,
      setGenerateDialog,
      validateImageReferenceUploadReservation,
    ],
  );

  const addSpecReferenceFiles = useCallback(
    async (files: FileList | File[]) => {
      const imageFile = Array.from(files).find(isImageFile);
      if (!imageFile) {
        window.alert('请选择图片文件');
        return;
      }

      const reservation = reserveImageReferenceUpload(
        'spec-reference',
        Array.from(files).filter(isImageFile).length,
      );
      if (!reservation) {
        return;
      }
      try {
        const imageFiles = Array.from(files).filter(isImageFile);
        const fileReferences = await Promise.all(
          imageFiles.map(async (file, index) => ({
            file,
            index,
            imageSrc: await readImageFileAsDataUrl(file),
          })),
        );
        if (!validateImageReferenceUploadReservation(reservation)) {
          return;
        }
        const references = await persistReferenceUploads(
          fileReferences.map(({ file, imageSrc, index }) => ({
            idPrefix: 'upload-spec-reference',
            index,
            file,
            fallbackLabel: `参考图${index + 1}`,
            imageSrc,
          })),
          reservation,
        );
        if (
          references.length === 0 ||
          !validateImageReferenceUploadReservation(reservation)
        ) {
          return;
        }
        setGenerateDialog((currentDialog) =>
          applyGenerationReferenceUpload({
            dialog: currentDialog,
            target: 'spec-reference',
            references,
          }),
        );
      } finally {
        reservation.release();
      }
    },
    [
      persistReferenceUploads,
      reserveImageReferenceUpload,
      setGenerateDialog,
      validateImageReferenceUploadReservation,
    ],
  );

  const addCharacterReferenceFiles = useCallback(
    async (files: FileList | File[]) => {
      const imageFiles = Array.from(files).filter(isImageFile);
      if (!imageFiles.length) {
        window.alert('请选择图片文件');
        return;
      }
      const reservation = reserveImageReferenceUpload(
        'character-reference',
        imageFiles.length,
      );
      if (!reservation) {
        return;
      }
      try {
        const references = await Promise.all(
          imageFiles.map(async (file, index) => ({
            file,
            index,
            imageSrc: await readImageFileAsDataUrl(file),
          })),
        );
        if (!validateImageReferenceUploadReservation(reservation)) {
          return;
        }
        const persistedReferences = await persistReferenceUploads(
          references.map(({ file, imageSrc, index }) => ({
            idPrefix: 'upload-character-reference',
            index,
            file,
            fallbackLabel: `参考图${index + 1}`,
            imageSrc,
          })),
          reservation,
        );
        if (
          persistedReferences.length === 0 ||
          !validateImageReferenceUploadReservation(reservation)
        ) {
          return;
        }
        setGenerateDialog((currentDialog) =>
          applyGenerationReferenceUpload({
            dialog: currentDialog,
            target: 'character-reference',
            references: persistedReferences,
          }),
        );
      } finally {
        reservation.release();
      }
    },
    [
      persistReferenceUploads,
      reserveImageReferenceUpload,
      setGenerateDialog,
      validateImageReferenceUploadReservation,
    ],
  );

  const addGenerationReferenceFiles = useCallback(
    async (files: FileList | File[]) => {
      const imageFiles = Array.from(files).filter(isImageFile);
      if (!imageFiles.length) {
        window.alert('请选择图片文件');
        return;
      }
      const reservation = reserveImageReferenceUpload(
        'generation-reference',
        imageFiles.length,
      );
      if (!reservation) {
        return;
      }
      try {
        const references = await Promise.all(
          imageFiles.map(async (file, index) => ({
            file,
            index,
            imageSrc: await readImageFileAsDataUrl(file),
          })),
        );
        if (!validateImageReferenceUploadReservation(reservation)) {
          return;
        }
        const persistedReferences = await persistReferenceUploads(
          references.map(({ file, imageSrc, index }) => ({
            idPrefix: 'upload-generation-reference',
            index,
            file,
            fallbackLabel: `参考图${index + 1}`,
            imageSrc,
          })),
          reservation,
        );
        if (
          persistedReferences.length === 0 ||
          !validateImageReferenceUploadReservation(reservation)
        ) {
          return;
        }
        setGenerateDialog((currentDialog) =>
          applyGenerationReferenceUpload({
            dialog: currentDialog,
            target: 'generation-reference',
            references: persistedReferences,
          }),
        );
      } finally {
        reservation.release();
      }
    },
    [
      persistReferenceUploads,
      reserveImageReferenceUpload,
      setGenerateDialog,
      validateImageReferenceUploadReservation,
    ],
  );

  const addQuickEditReferenceFiles = useCallback(
    async (files: FileList | File[]) => {
      const imageFiles = Array.from(files).filter(isImageFile);
      if (!imageFiles.length) {
        window.alert('请选择图片文件');
        return;
      }
      const reservation = reserveImageReferenceUpload(
        'quick-edit-reference',
        imageFiles.length,
      );
      if (!reservation) {
        return;
      }
      try {
        const references = await Promise.all(
          imageFiles.map(async (file, index) => ({
            file,
            index,
            imageSrc: await readImageFileAsDataUrl(file),
          })),
        );
        if (!validateImageReferenceUploadReservation(reservation)) {
          return;
        }
        const persistedReferences = await persistReferenceUploads(
          references.map(({ file, imageSrc, index }) => ({
            idPrefix: 'upload-quick-edit-reference',
            index,
            file,
            fallbackLabel: `参考图${index + 1}`,
            imageSrc,
          })),
          reservation,
        );
        if (
          persistedReferences.length === 0 ||
          !validateImageReferenceUploadReservation(reservation)
        ) {
          return;
        }
        setQuickEditPanel((currentPanel) =>
          applyQuickEditReferenceUpload({
            panel: currentPanel,
            references: persistedReferences,
          }),
        );
      } finally {
        reservation.release();
      }
    },
    [
      persistReferenceUploads,
      reserveImageReferenceUpload,
      setQuickEditPanel,
      validateImageReferenceUploadReservation,
    ],
  );

  const addUiAssetExtractionReferenceFiles = useCallback(
    async (files: FileList | File[]) => {
      const imageFiles = Array.from(files).filter(isImageFile);
      if (!imageFiles.length) {
        window.alert('请选择图片文件');
        return;
      }
      const reservation = reserveImageReferenceUpload(
        'ui-asset-extraction-reference',
        imageFiles.length,
      );
      if (!reservation) {
        return;
      }
      try {
        const references = await Promise.all(
          imageFiles.map(async (file, index) => ({
            file,
            index,
            imageSrc: await readImageFileAsDataUrl(file),
          })),
        );
        if (!validateImageReferenceUploadReservation(reservation)) {
          return;
        }
        const persistedReferences = await persistReferenceUploads(
          references.map(({ file, imageSrc, index }) => ({
            idPrefix: 'upload-ui-asset-extraction-reference',
            index,
            file,
            fallbackLabel: `UI素材参考图${index + 1}`,
            imageSrc,
          })),
          reservation,
        );
        if (
          persistedReferences.length === 0 ||
          !validateImageReferenceUploadReservation(reservation)
        ) {
          return;
        }
        appendUiAssetExtractionReferences(persistedReferences);
      } finally {
        reservation.release();
      }
    },
    [
      appendUiAssetExtractionReferences,
      persistReferenceUploads,
      reserveImageReferenceUpload,
      validateImageReferenceUploadReservation,
    ],
  );

  const addPublicationReferenceFiles = useCallback(
    async (files: FileList | File[]) => {
      const imageFiles = Array.from(files).filter(isImageFile);
      if (!imageFiles.length) {
        window.alert('请选择图片文件');
        return;
      }
      const reservation = reserveImageReferenceUpload(
        'publication-reference',
        imageFiles.length,
      );
      if (!reservation) {
        return;
      }
      try {
        const references = await Promise.all(
          imageFiles.map(async (file, index) => ({
            file,
            index,
            imageSrc: await readImageFileAsDataUrl(file),
          })),
        );
        if (!validateImageReferenceUploadReservation(reservation)) {
          return;
        }
        const persistedReferences = await persistReferenceUploads(
          references.map(({ file, imageSrc, index }) => ({
            idPrefix: 'upload-publication-reference',
            index,
            file,
            fallbackLabel: `宣发参考图${index + 1}`,
            imageSrc,
          })),
          reservation,
        );
        if (
          persistedReferences.length === 0 ||
          !validateImageReferenceUploadReservation(reservation)
        ) {
          return;
        }
        setGenerateDialog((currentDialog) =>
          applyGenerationReferenceUpload({
            dialog: currentDialog,
            target: 'publication-reference',
            references: persistedReferences,
          }),
        );
      } finally {
        reservation.release();
      }
    },
    [
      persistReferenceUploads,
      reserveImageReferenceUpload,
      setGenerateDialog,
      validateImageReferenceUploadReservation,
    ],
  );

  const addVideoReferenceImageFiles = useCallback(
    async (files: FileList | File[]) => {
      const imageFiles = Array.from(files).filter(isSeedanceReferenceImageFile);
      if (!imageFiles.length) {
        window.alert('请选择 Seedance 支持的图片文件');
        return;
      }
      if (
        imageFiles.some(
          (file) => file.size >= SEEDANCE_REFERENCE_FILE_LIMITS.imageBytes,
        )
      ) {
        window.alert('参考图片单张必须小于 30MB');
        return;
      }
      const references = await Promise.all(
        imageFiles.map(async (file, index) => ({
          file,
          index,
          src: await readFileAsDataUrl(file),
        })),
      );
      const persistedReferences = await persistReferenceUploads(
        references.map(({ file, src, index }) => ({
          idPrefix: 'upload-video-reference-image',
          index,
          file,
          fallbackLabel: `参考图${index + 1}`,
          imageSrc: src,
          mediaType: 'image',
          mimeType: file.type || undefined,
          sizeBytes: file.size,
        })),
      );
      if (persistedReferences.length === 0) {
        return;
      }
      setGenerateDialog((currentDialog) =>
        applyGenerationReferenceUpload({
          dialog: currentDialog,
          target: 'video-reference-image',
          references: persistedReferences,
        }),
      );
    },
    [persistReferenceUploads, setGenerateDialog],
  );

  const addVideoReferenceVideoFiles = useCallback(
    async (files: FileList | File[]) => {
      const videoFiles = Array.from(files).filter(isSeedanceReferenceVideoFile);
      if (!videoFiles.length) {
        window.alert('请选择 mp4 或 mov 视频文件');
        return;
      }
      if (
        videoFiles.some(
          (file) => file.size > SEEDANCE_REFERENCE_FILE_LIMITS.videoBytes,
        )
      ) {
        window.alert('参考视频单个不能超过 50MB');
        return;
      }
      const references = await Promise.all(
        videoFiles.map(async (file, index) => {
          const durationSeconds = await probeMediaDurationSeconds(
            file,
            'video',
          );
          return {
            file,
            index,
            durationSeconds,
          };
        }),
      );
      if (
        references.some(
          ({ durationSeconds }) =>
            Number.isFinite(durationSeconds) &&
            (durationSeconds <
              SEEDANCE_REFERENCE_FILE_LIMITS.mediaMinDurationSeconds ||
              durationSeconds >
                SEEDANCE_REFERENCE_FILE_LIMITS.mediaMaxDurationSeconds),
        )
      ) {
        window.alert('参考视频时长必须为 2-15 秒');
        return;
      }
      const totalDuration = references.reduce(
        (sum, reference) =>
          Number.isFinite(reference.durationSeconds)
            ? sum + reference.durationSeconds
            : sum,
        0,
      );
      if (
        totalDuration > SEEDANCE_REFERENCE_FILE_LIMITS.mediaTotalDurationSeconds
      ) {
        window.alert('参考视频总时长不能超过 15 秒');
        return;
      }
      let uploadedReferences: Array<{
        file: File;
        index: number;
        durationSeconds: number;
        src: string;
        objectKey: string;
        assetObjectId: string;
      }>;
      try {
        uploadedReferences = await Promise.all(
          references.map(async ({ file, index, durationSeconds }) => {
            const uploaded = await uploadEditorSeedanceReferenceFile(
              file,
              'video',
            );
            return {
              file,
              index,
              durationSeconds,
              src: uploaded.src,
              objectKey: uploaded.objectKey,
              assetObjectId: uploaded.assetObjectId,
            };
          }),
        );
      } catch {
        window.alert('参考视频上传失败，请稍后重试');
        return;
      }
      const persistedReferences = await persistReferenceUploads(
        uploadedReferences.map(
          ({
            file,
            src,
            index,
            durationSeconds,
            objectKey,
            assetObjectId,
          }) => ({
            idPrefix: 'upload-video-reference-video',
            index,
            file,
            fallbackLabel: `参考视频${index + 1}`,
            imageSrc: src,
            mediaType: 'video',
            mimeType: file.type || undefined,
            sizeBytes: file.size,
            durationSeconds,
            objectKey,
            assetObjectId,
          }),
        ),
      );
      if (persistedReferences.length === 0) {
        return;
      }
      setGenerateDialog((currentDialog) =>
        applyGenerationReferenceUpload({
          dialog: currentDialog,
          target: 'video-reference-video',
          references: persistedReferences,
        }),
      );
    },
    [persistReferenceUploads, setGenerateDialog],
  );

  const addVideoReferenceAudioFiles = useCallback(
    async (files: FileList | File[]) => {
      const audioFiles = Array.from(files).filter(isSeedanceReferenceAudioFile);
      if (!audioFiles.length) {
        window.alert('请选择 wav 或 mp3 音频文件');
        return;
      }
      if (
        audioFiles.some(
          (file) => file.size > SEEDANCE_REFERENCE_FILE_LIMITS.audioBytes,
        )
      ) {
        window.alert('参考音频单个不能超过 15MB');
        return;
      }
      const references = await Promise.all(
        audioFiles.map(async (file, index) => {
          const durationSeconds = await probeMediaDurationSeconds(
            file,
            'audio',
          );
          return {
            file,
            index,
            durationSeconds,
          };
        }),
      );
      if (
        references.some(
          ({ durationSeconds }) =>
            Number.isFinite(durationSeconds) &&
            (durationSeconds <
              SEEDANCE_REFERENCE_FILE_LIMITS.mediaMinDurationSeconds ||
              durationSeconds >
                SEEDANCE_REFERENCE_FILE_LIMITS.mediaMaxDurationSeconds),
        )
      ) {
        window.alert('参考音频时长必须为 2-15 秒');
        return;
      }
      const totalDuration = references.reduce(
        (sum, reference) =>
          Number.isFinite(reference.durationSeconds)
            ? sum + reference.durationSeconds
            : sum,
        0,
      );
      if (
        totalDuration > SEEDANCE_REFERENCE_FILE_LIMITS.mediaTotalDurationSeconds
      ) {
        window.alert('参考音频总时长不能超过 15 秒');
        return;
      }
      let uploadedReferences: Array<{
        file: File;
        index: number;
        durationSeconds: number;
        src: string;
        objectKey: string;
        assetObjectId: string;
      }>;
      try {
        uploadedReferences = await Promise.all(
          references.map(async ({ file, index, durationSeconds }) => {
            const uploaded = await uploadEditorSeedanceReferenceFile(
              file,
              'audio',
            );
            return {
              file,
              index,
              durationSeconds,
              src: uploaded.src,
              objectKey: uploaded.objectKey,
              assetObjectId: uploaded.assetObjectId,
            };
          }),
        );
      } catch {
        window.alert('参考音频上传失败，请稍后重试');
        return;
      }
      const persistedReferences = await persistReferenceUploads(
        uploadedReferences.map(
          ({
            file,
            src,
            index,
            durationSeconds,
            objectKey,
            assetObjectId,
          }) => ({
            idPrefix: 'upload-video-reference-audio',
            index,
            file,
            fallbackLabel: `参考音频${index + 1}`,
            imageSrc: src,
            mediaType: 'audio',
            mimeType: file.type || undefined,
            sizeBytes: file.size,
            durationSeconds,
            objectKey,
            assetObjectId,
          }),
        ),
      );
      if (persistedReferences.length === 0) {
        return;
      }
      setGenerateDialog((currentDialog) =>
        applyGenerationReferenceUpload({
          dialog: currentDialog,
          target: 'video-reference-audio',
          references: persistedReferences,
        }),
      );
    },
    [persistReferenceUploads, setGenerateDialog],
  );

  const addIconSpecReferenceFiles = useCallback(
    async (files: FileList | File[]) => {
      const imageFile = Array.from(files).find(isImageFile);
      if (!imageFile) {
        window.alert('请选择图片文件');
        return;
      }
      const reservation = reserveImageReferenceUpload('icon-spec', 1);
      if (!reservation) {
        return;
      }
      try {
        const imageSrc = await readImageFileAsDataUrl(imageFile);
        if (!validateImageReferenceUploadReservation(reservation)) {
          return;
        }
        const references = await persistReferenceUploads(
          [
            {
              idPrefix: 'upload-icon-spec',
              file: imageFile,
              fallbackLabel: '图标规范',
              imageSrc,
              authoritativeAssetKind: 'icon-spec',
            },
          ],
          reservation,
        );
        if (
          references.length === 0 ||
          !validateImageReferenceUploadReservation(reservation)
        ) {
          return;
        }
        setGenerateDialog((currentDialog) =>
          applyGenerationReferenceUpload({
            dialog: currentDialog,
            target: 'icon-spec',
            references,
          }),
        );
      } finally {
        reservation.release();
      }
    },
    [
      persistReferenceUploads,
      reserveImageReferenceUpload,
      setGenerateDialog,
      validateImageReferenceUploadReservation,
    ],
  );

  const addUiDesignSpecReferenceFiles = useCallback(
    async (files: FileList | File[]) => {
      const imageFile = Array.from(files).find(isImageFile);
      if (!imageFile) {
        window.alert('请选择图片文件');
        return;
      }
      const reservation = reserveImageReferenceUpload('ui-design-icon-spec', 1);
      if (!reservation) {
        return;
      }
      try {
        const imageSrc = await readImageFileAsDataUrl(imageFile);
        if (!validateImageReferenceUploadReservation(reservation)) {
          return;
        }
        const references = await persistReferenceUploads(
          [
            {
              idPrefix: 'upload-ui-design-icon-spec',
              file: imageFile,
              fallbackLabel: 'UI设计图标规范',
              imageSrc,
            },
          ],
          reservation,
        );
        if (
          references.length === 0 ||
          !validateImageReferenceUploadReservation(reservation)
        ) {
          return;
        }
        setGenerateDialog((currentDialog) =>
          applyGenerationReferenceUpload({
            dialog: currentDialog,
            target: 'ui-design-icon-spec',
            references,
          }),
        );
      } finally {
        reservation.release();
      }
    },
    [
      persistReferenceUploads,
      reserveImageReferenceUpload,
      setGenerateDialog,
      validateImageReferenceUploadReservation,
    ],
  );

  const uploadAssetFile = useCallback(
    async (file: File, options: UploadAssetFileOptions) => {
      const mediaType = resolveEditorAssetUploadMediaType(file);
      if (!mediaType) {
        window.alert('请选择图片、MP3 或 MP4 文件');
        return;
      }

      let uploadFolderId = resolveUploadFolderId({
        assetFolders,
        requestedFolderId: options.folderId,
        activeUploadFolderId,
        preferUploadFolder: !options.folderId,
      });
      if (!options.folderId && !resolveUploadAssetFolder(assetFolders)) {
        if (!uploadAssetFolderCreatePromiseRef.current) {
          uploadAssetFolderCreatePromiseRef.current = createEditorAssetFolder(
            EDITOR_UPLOAD_ASSET_FOLDER_LABEL,
            assetFolders.length + 100,
          )
            .then((folder) => {
              setAssetFolders((currentFolders) =>
                currentFolders.some(
                  (currentFolder) => currentFolder.id === folder.folderId,
                )
                  ? currentFolders
                  : [
                      ...currentFolders,
                      {
                        id: folder.folderId,
                        label: folder.label,
                        collapsed: folder.collapsed,
                        systemDefault: folder.systemDefault,
                        persisted: true,
                      },
                    ],
              );
              return folder.folderId;
            })
            .catch(() => {
              const fallbackFolder =
                resolvePreferredAssetUploadFolder(assetFolders);
              return fallbackFolder?.id ?? 'project';
            })
            .finally(() => {
              uploadAssetFolderCreatePromiseRef.current = null;
            });
        }
        uploadFolderId = await uploadAssetFolderCreatePromiseRef.current;
      }
      const uploadIndex = options.uploadIndex;
      let imageDimensions: { width: number; height: number } | null = null;
      let mediaMetadata: Awaited<
        ReturnType<typeof probeMediaFileMetadata>
      > | null = null;
      if (mediaType === 'image') {
        imageDimensions = await probeImageFileDimensions(file).catch(
          () => null,
        );
      } else if (mediaType === 'video') {
        mediaMetadata = await probeMediaFileMetadata(file, 'video').catch(
          () => null,
        );
        imageDimensions = mediaMetadata?.dimensions ?? null;
      }
      const uploadedAsset = createUploadingAssetPlaceholder({
        uploadIndex,
        fileName: file.name,
        folderId: uploadFolderId,
        mediaType,
        imageDimensions,
      });
      setAssets((currentAssets) => [...currentAssets, uploadedAsset]);
      setAssetFolders((currentFolders) =>
        expandUploadFolder({
          folders: currentFolders,
          folderId: uploadFolderId,
        }),
      );

      let previewSrc = '';
      let persistedImageSrc = '';
      let objectKey: string | null = null;
      let assetObjectId: string | null = null;
      let durationSeconds: number | undefined;
      try {
        if (mediaType !== 'image') {
          durationSeconds =
            mediaMetadata?.durationSeconds ??
            (await probeMediaDurationSeconds(file, mediaType).catch(
              () => undefined,
            ));
        }
        const uploadedMedia = await uploadEditorMediaAssetFile(file, mediaType);
        previewSrc = uploadedMedia.src;
        persistedImageSrc = uploadedMedia.legacyPublicPath;
        objectKey = uploadedMedia.objectKey;
        assetObjectId = uploadedMedia.assetObjectId;
        setAssets((currentAssets) =>
          applyUploadAssetReadSuccess({
            assets: currentAssets,
            uploadAssetId: uploadedAsset.id,
            imageSrc: previewSrc,
          }),
        );
      } catch {
        setAssets((currentAssets) =>
          applyUploadAssetReadFailure({
            assets: currentAssets,
            uploadAssetId: uploadedAsset.id,
          }),
        );
        return;
      }

      const nextLayer = createUploadCanvasLayer({
        uploadIndex,
        fileName: file.name,
        imageSrc: previewSrc,
        objectKey,
        assetObjectId,
        mediaType,
        imageDimensions,
        durationSeconds,
        canvasPoint: options.canvasPoint,
        canvasSize,
        viewport,
      });

      if (options.addToCanvas) {
        captureCanvasHistory({ type: 'upload-image', count: 1 });
        appendCanvasLayersWithResources([nextLayer]);
        selectSingleLayer(nextLayer.id);
      }

      setAssets((currentAssets) =>
        applyUploadAssetCreatePending({
          assets: currentAssets,
          uploadAssetId: uploadedAsset.id,
        }),
      );
      createEditorAsset({
        folderId: uploadFolderId,
        label: uploadedAsset.label,
        imageSrc: persistedImageSrc,
        ...(objectKey ? { objectKey } : {}),
        ...(assetObjectId ? { assetObjectId } : {}),
        width: uploadedAsset.width,
        height: uploadedAsset.height,
        sourceType: 'uploaded',
        assetKind: nextLayer.assetKind,
        generationInputs: nextLayer.generationInputs,
      })
        .then((asset) => {
          const persistedAssetWithPreview = {
            ...asset,
            imageSrc: previewSrc,
          };
          setAssets((currentAssets) =>
            applyPersistedUploadAsset({
              assets: currentAssets,
              uploadAssetId: uploadedAsset.id,
              persistedAsset: persistedAssetWithPreview,
            }),
          );
          if (options.addToCanvas) {
            setLayers((currentLayers) =>
              bindUploadLayerToPersistedAsset({
                layers: currentLayers,
                layerId: nextLayer.id,
                persistedAsset: persistedAssetWithPreview,
              }),
            );
          }
        })
        .catch((error: unknown) => {
          const isAuthError = isEditorAuthError(error);
          if (isAuthError) {
            openEditorLoginModal();
          }
          setAssets((currentAssets) =>
            applyUploadAssetCreateFailure({
              assets: currentAssets,
              uploadAssetId: uploadedAsset.id,
              message: isAuthError ? '请先登录' : '上传失败',
            }),
          );
        });

      if (mediaType === 'image' && previewSrc) {
        const uploadedImage = new Image();
        uploadedImage.onload = () => {
          const originalWidth =
            uploadedImage.naturalWidth || uploadedAsset.width;
          const originalHeight =
            uploadedImage.naturalHeight || uploadedAsset.height;
          if (options.addToCanvas) {
            setLayers((currentLayers) =>
              currentLayers.map((layer) =>
                layer.id === nextLayer.id
                  ? resizeUploadCanvasLayerToImage({
                      layer,
                      originalWidth,
                      originalHeight,
                      canvasPoint: options.canvasPoint,
                      canvasSize,
                      viewport,
                    })
                  : layer,
              ),
            );
          }
          setAssets((currentAssets) =>
            applyMeasuredUploadAssetSize({
              assets: currentAssets,
              uploadAssetId: uploadedAsset.id,
              originalWidth,
              originalHeight,
            }),
          );
        };
        uploadedImage.src = previewSrc;
      }
    },
    [
      activeUploadFolderId,
      appendCanvasLayersWithResources,
      captureCanvasHistory,
      assetFolders,
      canvasSize,
      openEditorLoginModal,
      selectSingleLayer,
      setAssetFolders,
      setAssets,
      setLayers,
      viewport,
    ],
  );

  const addUploadedFiles = useCallback(
    (files: FileList | File[], options: UploadFilesOptions = {}) => {
      const imageFiles = Array.from(files);
      if (!canAccessProtectedDataRef.current) {
        openEditorLoginModal(() => {
          addUploadedFiles(imageFiles, options);
        });
        return;
      }
      imageFiles.forEach((file, index) => {
        const uploadIndex = allocateUploadIndex();
        void uploadAssetFile(file, {
          ...options,
          addToCanvas: options.addToCanvas ?? false,
          uploadIndex,
          canvasPoint: options.canvasPoint
            ? {
                x: options.canvasPoint.x + index * 28,
                y: options.canvasPoint.y + index * 28,
              }
            : undefined,
        });
      });
    },
    [allocateUploadIndex, openEditorLoginModal, uploadAssetFile],
  );

  const openUploadPicker = useCallback(
    (target: UploadTarget, options: UploadRequestOptions = {}) => {
      setUploadTarget(target);
      uploadRequestOptionsRef.current = options;
      uploadInputRef.current?.click();
    },
    [setUploadTarget],
  );

  const requestUpload = useCallback(
    (target: UploadTarget = 'asset', options: UploadRequestOptions = {}) => {
      if (!canAccessProtectedDataRef.current) {
        openEditorLoginModal();
        return;
      }
      openUploadPicker(target, options);
    },
    [openEditorLoginModal, openUploadPicker],
  );

  const handleUploadInputChange = useCallback(
    (event: ChangeEvent<HTMLInputElement>) => {
      const files = event.currentTarget.files;
      const currentUploadTarget = uploadTargetRef.current;
      if (files?.length) {
        if (currentUploadTarget === 'spec-reference') {
          void addSpecReferenceFiles(files);
        } else if (currentUploadTarget === 'generation-reference') {
          void addGenerationReferenceFiles(files);
        } else if (currentUploadTarget === 'ui-asset-extraction-reference') {
          void addUiAssetExtractionReferenceFiles(files);
        } else if (currentUploadTarget === 'quick-edit-reference') {
          void addQuickEditReferenceFiles(files);
        } else if (currentUploadTarget === 'publication-reference') {
          void addPublicationReferenceFiles(files);
        } else if (currentUploadTarget === 'video-reference-image') {
          void addVideoReferenceImageFiles(files);
        } else if (currentUploadTarget === 'video-reference-video') {
          void addVideoReferenceVideoFiles(files);
        } else if (currentUploadTarget === 'video-reference-audio') {
          void addVideoReferenceAudioFiles(files);
        } else if (currentUploadTarget === 'character-spec') {
          void addCharacterSpecReferenceFiles(files);
        } else if (currentUploadTarget === 'character-reference') {
          void addCharacterReferenceFiles(files);
        } else if (currentUploadTarget === 'icon-spec') {
          void addIconSpecReferenceFiles(files);
        } else if (currentUploadTarget === 'ui-design-icon-spec') {
          void addUiDesignSpecReferenceFiles(files);
        } else {
          const requestOptions = uploadRequestOptionsRef.current;
          addUploadedFiles(files, {
            folderId: requestOptions.folderId,
            addToCanvas: requestOptions.addToCanvas ?? activeTool === 'upload',
          });
        }
      }
      uploadRequestOptionsRef.current = {};
      setUploadTarget('asset');
      event.currentTarget.value = '';
    },
    [
      activeTool,
      addCharacterReferenceFiles,
      addCharacterSpecReferenceFiles,
      addGenerationReferenceFiles,
      addUiAssetExtractionReferenceFiles,
      addQuickEditReferenceFiles,
      addPublicationReferenceFiles,
      addVideoReferenceImageFiles,
      addVideoReferenceVideoFiles,
      addVideoReferenceAudioFiles,
      addSpecReferenceFiles,
      addIconSpecReferenceFiles,
      addUiDesignSpecReferenceFiles,
      addUploadedFiles,
      setUploadTarget,
    ],
  );

  return {
    uploadInputRef,
    uploadTarget,
    pendingImageReferenceUploadCount,
    setUploadTarget,
    requestUpload,
    handleUploadInputChange,
    addUploadedFiles,
    addSpecReferenceFiles,
    addCharacterSpecReferenceFiles,
    addCharacterReferenceFiles,
    addGenerationReferenceFiles,
    addUiAssetExtractionReferenceFiles,
    addQuickEditReferenceFiles,
    addPublicationReferenceFiles,
    addVideoReferenceImageFiles,
    addVideoReferenceVideoFiles,
    addVideoReferenceAudioFiles,
    addIconSpecReferenceFiles,
    addUiDesignSpecReferenceFiles,
  };
}