import { describe, expect, it } from 'vitest';

import type {
  EditorAsset,
  EditorAssetFolder,
} from './ImageCanvasEditorTypes';
import {
  areAllSelectableAssetsSelected,
  createLocalAssetFolder,
  deleteAssetFolderLocally,
  getSelectableAssets,
  groupAssetsByFolder,
  moveAssetToFolderLocally,
  removeAssetById,
  removeSelectedAssets,
  renameAssetById,
  renameAssetFolderById,
  replaceLocalAssetFolder,
  resolveAllAssetSelection,
  resolveDefaultAssetFolder,
  toggleAssetFolderCollapsed,
  toggleAssetSelection,
} from './ImageCanvasAssetLibraryModel';

function createFolder(
  overrides: Partial<EditorAssetFolder> = {},
): EditorAssetFolder {
  return {
    id: 'project',
    label: '项目素材',
    collapsed: false,
    systemDefault: true,
    persisted: true,
    ...overrides,
  };
}

function createAsset(overrides: Partial<EditorAsset> = {}): EditorAsset {
  return {
    id: 'asset-a',
    label: '素材A',
    src: 'data:image/png;base64,YQ==',
    width: 320,
    height: 240,
    folderId: 'project',
    sourceKind: 'uploaded',
    sourceType: 'uploaded',
    persisted: true,
    ...overrides,
  };
}

describe('ImageCanvasAssetLibraryModel', () => {
  it('groups assets by folder and resolves selectable uploaded assets', () => {
    const folders = [
      createFolder(),
      createFolder({ id: 'folder-role', label: '角色素材' }),
    ];
    const assets = [
      createAsset({ id: 'asset-a', folderId: 'project' }),
      createAsset({
        id: 'asset-b',
        label: '素材B',
        folderId: 'folder-role',
      }),
      createAsset({
        id: 'built-in',
        label: '内置素材',
        sourceKind: 'built-in',
      }),
    ];

    expect(groupAssetsByFolder(folders, assets)).toMatchObject([
      { id: 'project', assets: [{ id: 'asset-a' }, { id: 'built-in' }] },
      { id: 'folder-role', assets: [{ id: 'asset-b' }] },
    ]);
    expect(getSelectableAssets(assets).map((asset) => asset.id)).toEqual([
      'asset-a',
      'asset-b',
    ]);
  });

  it('renames assets, toggles folders and creates local folders', () => {
    expect(renameAssetById([createAsset()], 'asset-a', '新名字')[0]).toMatchObject(
      { label: '新名字' },
    );
    expect(
      renameAssetFolderById([createFolder()], 'project', '默认素材')[0],
    ).toMatchObject({ label: '默认素材' });
    expect(toggleAssetFolderCollapsed([createFolder()], 'project')[0]).toMatchObject(
      { collapsed: true },
    );
    expect(
      createLocalAssetFolder({
        folderId: 'folder-local',
        label: '角色素材',
      }),
    ).toEqual({
      id: 'folder-local',
      label: '角色素材',
      collapsed: false,
      systemDefault: false,
      persisted: false,
    });
  });

  it('replaces local folder ids in folders and contained assets', () => {
    const result = replaceLocalAssetFolder({
      folders: [createFolder(), createFolder({ id: 'folder-local' })],
      assets: [createAsset({ folderId: 'folder-local' })],
      localFolderId: 'folder-local',
      persistedFolder: {
        folderId: 'folder-role',
        label: '角色素材',
        collapsed: false,
        systemDefault: false,
      },
    });

    expect(result.folders[1]).toEqual({
      id: 'folder-role',
      label: '角色素材',
      collapsed: false,
      systemDefault: false,
      persisted: true,
    });
    expect(result.assets[0]).toMatchObject({ folderId: 'folder-role' });
  });

  it('deletes assets and moves deleted folder contents to the default folder', () => {
    const folders = [
      createFolder(),
      createFolder({ id: 'folder-role', systemDefault: false }),
    ];
    const assets = [
      createAsset({ id: 'asset-a', folderId: 'folder-role' }),
      createAsset({ id: 'asset-b', folderId: 'project' }),
    ];

    expect(removeAssetById(assets, 'asset-a').map((asset) => asset.id)).toEqual([
      'asset-b',
    ]);
    expect(resolveDefaultAssetFolder(folders)?.id).toBe('project');
    expect(
      deleteAssetFolderLocally({
        folders,
        assets,
        folderId: 'folder-role',
        defaultFolderId: 'project',
      }),
    ).toMatchObject({
      folders: [{ id: 'project' }],
      assets: [
        { id: 'asset-a', folderId: 'project' },
        { id: 'asset-b', folderId: 'project' },
      ],
    });
  });

  it('toggles selection, selects all uploaded assets and removes selected assets', () => {
    const assets = [
      createAsset({ id: 'asset-a' }),
      createAsset({ id: 'asset-b' }),
    ];
    const selected = toggleAssetSelection(new Set<string>(), 'asset-a');

    expect([...selected]).toEqual(['asset-a']);
    expect([...toggleAssetSelection(selected, 'asset-a')]).toEqual([]);
    expect(areAllSelectableAssetsSelected(assets, new Set(['asset-a']))).toBe(
      false,
    );
    const allSelected = resolveAllAssetSelection({
      allSelectableAssetsSelected: false,
      selectableAssets: assets,
    });
    expect([...allSelected]).toEqual(['asset-a', 'asset-b']);
    const removal = removeSelectedAssets(assets, new Set(['asset-b']));
    expect(removal.assets.map((asset) => asset.id)).toEqual(['asset-a']);
    expect(removal.deletedAssets.map((asset) => asset.id)).toEqual(['asset-b']);
  });

  it('moves assets between folders locally', () => {
    expect(
      moveAssetToFolderLocally([createAsset()], 'asset-a', 'folder-role')[0],
    ).toMatchObject({ folderId: 'folder-role' });
  });
});