import { fireEvent } from '@testing-library/react';
import JSZip from 'jszip';
import type { ContextType } from 'react';
import { afterEach, beforeEach, expect, type Mock, vi } from 'vitest';

import { ApiClientError } from '../../services/apiClient';
import type {
  EditorProjectLayerSnapshot,
  EditorProjectResourceSnapshot,
  EditorProjectSnapshot,
} from '../../services/image-editor/editorProjectClient';
import { AuthUiContext } from '../auth/AuthUiContext';
import { ImageCanvasEditorView } from './ImageCanvasEditorView';

export { ApiClientError, AuthUiContext, ImageCanvasEditorView };

export type AuthValue = NonNullable<ContextType<typeof AuthUiContext>>;

export type ImageCanvasEditorViewServiceMocks = {
  generateEditorImageMock: Mock;
  generateEditorIconSpritesheetMock: Mock;
  extractEditorUiDesignAssetsMock?: Mock;
  generateEditorCharacterAnimationMock: Mock;
  editEditorImageMock: Mock;
  createEditorAssetMock: Mock;
  createEditorProjectResourceMock: Mock;
  createEditorAssetFolderMock: Mock;
  updateEditorAssetMock: Mock;
  updateEditorAssetFolderMock: Mock;
  deleteEditorAssetFolderMock: Mock;
  deleteEditorAssetMock: Mock;
  loadEditorAssetLibraryMock: Mock;
  loadEditorProjectMock: Mock;
  loadOrCreateRecentEditorProjectMock: Mock;
  renameEditorProjectMock: Mock;
  saveEditorProjectLayoutMock: Mock;
};

const runRequiredAuthAction = (action: () => void) => action();

export function createAuthValue(overrides: Partial<AuthValue> = {}): AuthValue {
  return {
    user: null,
    canAccessProtectedData: false,
    openLoginModal: vi.fn(),
    requireAuth: vi.fn(runRequiredAuthAction),
    openSettingsModal: vi.fn(),
    openAccountModal: vi.fn(),
    setCurrentUser: vi.fn(),
    logout: vi.fn(),
    musicVolume: 0.5,
    setMusicVolume: vi.fn(),
    platformTheme: 'light',
    setPlatformTheme: vi.fn(),
    isHydratingSettings: false,
    isPersistingSettings: false,
    settingsError: null,
    ...overrides,
  };
}

export const defaultEditorProjectResources = [
  {
    resourceId: 'resource-puzzle',
    projectId: 'editor-project-default',
    imageSrc: '/creation-type-references/puzzle.webp',
    width: 640,
    height: 640,
    sourceType: 'uploaded',
  },
  {
    resourceId: 'resource-big-fish',
    projectId: 'editor-project-default',
    imageSrc: '/creation-type-references/big-fish.webp',
    width: 720,
    height: 405,
    sourceType: 'uploaded',
  },
] satisfies EditorProjectResourceSnapshot[];

export const defaultEditorProjectLayers = [
  {
    layerId: 'layer-puzzle',
    resourceId: 'resource-puzzle',
    title: '拼图素材',
    x: 470,
    y: 300,
    width: 640,
    height: 640,
    originalWidth: 640,
    originalHeight: 640,
    zIndex: 1,
    sourceType: 'uploaded',
  },
  {
    layerId: 'layer-big-fish',
    resourceId: 'resource-big-fish',
    title: '大鱼素材',
    x: 930,
    y: 360,
    width: 720,
    height: 405,
    originalWidth: 720,
    originalHeight: 405,
    zIndex: 2,
    sourceType: 'uploaded',
  },
] satisfies EditorProjectLayerSnapshot[];

export function withEditorProjectCanvasRevision<
  T extends EditorProjectSnapshot,
>(project: T, revision = 0): T {
  if (typeof project.canvas?.revision === 'number') {
    return project;
  }
  return {
    ...project,
    canvas: {
      canvasId:
        project.canvas?.canvasId ?? `${project.projectId}:canvas:default`,
      projectId: project.projectId,
      title: project.canvas?.title ?? '默认画布',
      viewport: project.canvas?.viewport ?? project.viewport,
      layers: project.canvas?.layers ?? project.layers,
      revision,
      layoutStorageVersion: project.canvas?.layoutStorageVersion ?? 0,
      backgroundColor: project.canvas?.backgroundColor,
      createdAt: project.canvas?.createdAt,
      updatedAt: project.canvas?.updatedAt ?? project.updatedAt,
    },
  };
}

export const defaultEditorAssetLibraryAssets = [
  {
    assetId: 'asset-puzzle',
    folderId: 'project',
    label: '拼图素材',
    imageSrc: '/creation-type-references/puzzle.webp',
    width: 640,
    height: 640,
    sourceType: 'uploaded',
  },
  {
    assetId: 'asset-match3d',
    folderId: 'project',
    label: '抓大鹅素材',
    imageSrc: '/creation-type-references/match3d.webp',
    width: 640,
    height: 640,
    sourceType: 'uploaded',
  },
  {
    assetId: 'asset-big-fish',
    folderId: 'project',
    label: '大鱼素材',
    imageSrc: '/creation-type-references/big-fish.webp',
    width: 720,
    height: 405,
    sourceType: 'uploaded',
  },
  {
    assetId: 'asset-bark-battle',
    folderId: 'project',
    label: '声浪素材',
    imageSrc: '/creation-type-references/bark-battle.webp',
    width: 640,
    height: 900,
    sourceType: 'uploaded',
  },
  {
    assetId: 'asset-visual-novel',
    folderId: 'project',
    label: '视觉小说素材',
    imageSrc: '/creation-type-references/visual-novel.webp',
    width: 720,
    height: 405,
    sourceType: 'uploaded',
  },
];

export function dispatchPointerEvent(
  target: Element,
  type: string,
  init: MouseEventInit & { pointerId: number },
) {
  const event = new MouseEvent(type, {
    bubbles: true,
    cancelable: true,
    ...init,
  });
  Object.defineProperty(event, 'pointerId', { value: init.pointerId });
  fireEvent(target, event);
}

export function immediateAsync<T>(value: T) {
  return {
    then(onFulfilled: (value: T) => unknown) {
      onFulfilled(value);
      return {
        catch() {},
      };
    },
  };
}

export function createDataTransferStub() {
  const store = new Map<string, string>();
  return {
    files: [],
    types: [] as string[],
    dropEffect: 'none',
    effectAllowed: 'all',
    setData(type: string, value: string) {
      store.set(type, value);
      if (!this.types.includes(type)) {
        this.types.push(type);
      }
    },
    getData(type: string) {
      return store.get(type) ?? '';
    },
  };
}

export function createDeferred<T>() {
  let resolve!: (value: T) => void;
  let reject!: (reason?: unknown) => void;
  const promise = new Promise<T>((promiseResolve, promiseReject) => {
    resolve = promiseResolve;
    reject = promiseReject;
  });
  return { promise, resolve, reject };
}

export async function readZipText(zip: JSZip, path: string) {
  const file = zip.file(path);
  expect(file).toBeTruthy();
  return file!.async('string');
}

export function setupImageCanvasEditorViewTestLifecycle({
  generateEditorImageMock,
  generateEditorIconSpritesheetMock,
  extractEditorUiDesignAssetsMock,
  generateEditorCharacterAnimationMock,
  editEditorImageMock,
  createEditorAssetMock,
  createEditorProjectResourceMock,
  createEditorAssetFolderMock,
  updateEditorAssetMock,
  updateEditorAssetFolderMock,
  deleteEditorAssetFolderMock,
  deleteEditorAssetMock,
  loadEditorAssetLibraryMock,
  loadEditorProjectMock,
  loadOrCreateRecentEditorProjectMock,
  renameEditorProjectMock,
  saveEditorProjectLayoutMock,
}: ImageCanvasEditorViewServiceMocks) {
  beforeEach(() => {
    window.sessionStorage.clear();
    vi.spyOn(HTMLCanvasElement.prototype, 'getContext').mockReturnValue(null);
    loadOrCreateRecentEditorProjectMock.mockImplementation(() =>
      immediateAsync(
        withEditorProjectCanvasRevision({
          projectId: 'editor-project-default',
          title: '默认项目',
          canvas: {
            canvasId: 'editor-project-default:canvas:default',
            projectId: 'editor-project-default',
            title: '默认画布',
            viewport: { x: 0, y: 0, scale: 1 },
            layers: defaultEditorProjectLayers,
            revision: 0,
            layoutStorageVersion: 0,
            updatedAt: '2026-06-12T00:00:00.000Z',
          },
          viewport: { x: 0, y: 0, scale: 1 },
          layers: defaultEditorProjectLayers,
          resources: defaultEditorProjectResources,
          updatedAt: '2026-06-12T00:00:00.000Z',
        }),
      ),
    );
    loadEditorAssetLibraryMock.mockImplementation(() =>
      immediateAsync({
        folders: [
          {
            folderId: 'project',
            label: '项目素材',
            sortOrder: 0,
            collapsed: false,
            systemDefault: true,
          },
        ],
        assets: defaultEditorAssetLibraryAssets,
      }),
    );
    createEditorAssetMock.mockImplementation(async (input) => ({
      assetId: `persisted-${input.label}`,
      folderId: input.folderId,
      label: input.label,
      imageSrc: input.imageSrc,
      objectKey: input.objectKey,
      assetObjectId: input.assetObjectId,
      width: input.width,
      height: input.height,
      sourceType: input.sourceType,
      assetKind: input.assetKind,
      generationInputs: input.generationInputs,
      imageSequenceFrames: input.imageSequenceFrames,
      imageSequenceDurationMs: input.imageSequenceDurationMs,
    }));
    createEditorAssetFolderMock.mockResolvedValue({
      folderId: 'folder-role-persisted',
      label: '角色上传',
      collapsed: false,
      systemDefault: false,
    });
    updateEditorAssetMock.mockImplementation(async (assetId, input) => ({
      assetId,
      folderId: input.folderId ?? 'project',
      label: input.label ?? '拼图素材',
      imageSrc: '/creation-type-references/puzzle.webp',
      width: 640,
      height: 640,
      sourceType: 'uploaded',
    }));
    renameEditorProjectMock.mockImplementation(async (projectId, title) => ({
      projectId,
      title,
      viewport: { x: 0, y: 0, scale: 1 },
      layers: defaultEditorProjectLayers,
      resources: defaultEditorProjectResources,
      updatedAt: '2026-06-12T00:00:00.000Z',
    }));
    updateEditorAssetFolderMock.mockImplementation(async (folderId, input) => ({
      folderId,
      label: input.label ?? '角色上传',
      collapsed: input.collapsed ?? false,
      systemDefault: false,
    }));
    deleteEditorAssetFolderMock.mockResolvedValue({
      folders: [
        {
          folderId: 'project',
          label: '项目素材',
          sortOrder: 0,
          collapsed: false,
          systemDefault: true,
        },
      ],
      assets: [],
    });
    deleteEditorAssetMock.mockResolvedValue({});
    createEditorProjectResourceMock.mockImplementation(
      async (projectId, input) => ({
        resourceId: `resource-${projectId}-${input.width}`,
        projectId,
        imageSrc: input.imageSrc,
        objectKey: input.objectKey,
        assetObjectId: input.assetObjectId,
        width: input.width,
        height: input.height,
        sourceType: input.sourceType,
        assetKind: input.assetKind,
        generationInputs: input.generationInputs,
        imageSequenceFrames: input.imageSequenceFrames,
        imageSequenceDurationMs: input.imageSequenceDurationMs,
      }),
    );
    saveEditorProjectLayoutMock.mockImplementation(
      async (projectId, input) => ({
        projectId,
        canvasId: `${projectId}:canvas:default`,
        revision: input.expectedRevision + 1,
        updatedAt: '2026-06-12T00:00:01.000Z',
      }),
    );
  });

  afterEach(() => {
    vi.useRealTimers();
    vi.restoreAllMocks();
    generateEditorImageMock.mockReset();
    generateEditorIconSpritesheetMock.mockReset();
    extractEditorUiDesignAssetsMock?.mockReset();
    generateEditorCharacterAnimationMock.mockReset();
    editEditorImageMock.mockReset();
    createEditorAssetMock.mockReset();
    createEditorProjectResourceMock.mockReset();
    createEditorAssetFolderMock.mockReset();
    updateEditorAssetMock.mockReset();
    updateEditorAssetFolderMock.mockReset();
    deleteEditorAssetFolderMock.mockReset();
    deleteEditorAssetMock.mockReset();
    loadEditorAssetLibraryMock.mockReset();
    loadEditorProjectMock.mockReset();
    loadOrCreateRecentEditorProjectMock.mockReset();
    renameEditorProjectMock.mockReset();
    saveEditorProjectLayoutMock.mockReset();
    window.history.replaceState(null, '', '/editor/canvas');
  });
}