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

import type {
  EditorAsset,
  EditorAssetFolder,
} from './ImageCanvasEditorTypes';
import {
  areAllSelectableAssetsSelected,
  createAssetMarqueeFromPointer,
  createAssetMarqueeSelectionRect,
  createLocalAssetFolder,
  deleteAssetFolderLocally,
  filterGroupedAssetsBySearch,
  getSelectableAssets,
  groupAssetsByFolder,
  moveAssetToFolderLocally,
  moveAssetMarqueeToPointer,
  removeAssetById,
  removeSelectedAssets,
  renameAssetById,
  renameAssetFolderById,
  replaceLocalAssetFolder,
  resolveAllAssetSelection,
  resolveAssetShowcaseSubmissionState,
  resolveAssetFolderIdFromPoint,
  resolveDefaultAssetFolder,
  resolvePreferredAssetUploadFolder,
  resolvePinnedAssetMoveFolderId,
  resolveUploadAssetFolder,
  selectUploadedAssetsInRect,
  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('explains why assets cannot be submitted to showcase review', () => {
    expect(
      resolveAssetShowcaseSubmissionState(createAsset()).reason,
    ).toBe('只有生成素材可以提交精选审核');
    expect(
      resolveAssetShowcaseSubmissionState(
        createAsset({ sourceType: 'generated', persisted: false }),
      ).reason,
    ).toBe('素材保存完成后才能提交精选审核');
    expect(
      resolveAssetShowcaseSubmissionState(
        createAsset({ sourceType: 'generated', src: '' }),
      ).reason,
    ).toBe('没有媒体内容的素材不能提交精选审核');
    expect(
      resolveAssetShowcaseSubmissionState(
        createAsset({
          sourceType: 'generated',
          showcaseReviewStatus: 'rejected',
        }),
      ),
    ).toMatchObject({
      canSubmit: false,
      label: '精选未通过',
      reason: '该素材审核未通过，不能重复提交',
    });
  });

  it('allows persisted generated assets to be submitted and keeps prior backend errors visible', () => {
    expect(
      resolveAssetShowcaseSubmissionState(
        createAsset({ sourceType: 'generated' }),
      ),
    ).toMatchObject({
      canSubmit: true,
      label: '提交精选审核',
      reason: null,
    });
    expect(
      resolveAssetShowcaseSubmissionState(
        createAsset({
          sourceType: 'generated',
          showcaseSubmitError: '只有生成素材可以提交精选审核',
        }),
      ),
    ).toMatchObject({
      canSubmit: true,
      label: '提交精选审核',
      reason: '只有生成素材可以提交精选审核',
    });
  });

  it('filters grouped assets by folder and asset search text', () => {
    const groupedAssets = groupAssetsByFolder(
      [
        createFolder(),
        createFolder({ id: 'folder-uploaded', label: '上传素材' }),
      ],
      [
        createAsset({ id: 'asset-a', label: '草地角色', folderId: 'project' }),
        createAsset({
          id: 'asset-b',
          label: '音效',
          folderId: 'folder-uploaded',
          model: 'audio1.0',
        }),
        createAsset({
          id: 'asset-c',
          label: '角色音效',
          folderId: 'folder-uploaded',
        }),
      ],
    );

    expect(
      filterGroupedAssetsBySearch(groupedAssets, 'audio').map((folder) => ({
        id: folder.id,
        assets: folder.assets.map((asset) => asset.id),
      })),
    ).toEqual([{ id: 'folder-uploaded', assets: ['asset-b'] }]);
    expect(
      filterGroupedAssetsBySearch(groupedAssets, '音').map((folder) => ({
        id: folder.id,
        assets: folder.assets.map((asset) => asset.id),
      })),
    ).toEqual([{ id: 'folder-uploaded', assets: ['asset-b', 'asset-c'] }]);
    expect(
      filterGroupedAssetsBySearch(groupedAssets, '上传').map((folder) => ({
        id: folder.id,
        assets: folder.assets.map((asset) => asset.id),
      })),
    ).toEqual([{ id: 'folder-uploaded', assets: ['asset-b', 'asset-c'] }]);
  });

  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(
      resolveUploadAssetFolder([
        createFolder(),
        createFolder({ id: 'folder-uploaded', label: '上传素材' }),
      ])?.id,
    ).toBe('folder-uploaded');
    expect(resolvePreferredAssetUploadFolder(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' });
  });

  it('resolves folder hit targets from pointer coordinates', () => {
    const folders = [
      {
        folderId: 'project',
        rect: { left: 10, right: 110, top: 10, bottom: 80 },
      },
      {
        folderId: 'folder-role',
        rect: { left: 10, right: 110, top: 81, bottom: 150 },
      },
    ];

    expect(
      resolveAssetFolderIdFromPoint({
        point: { clientX: 40, clientY: 80 },
        listRect: { left: 0, right: 140, top: 0, bottom: 180 },
        folders,
      }),
    ).toBe('project');
    expect(
      resolveAssetFolderIdFromPoint({
        point: { clientX: 5, clientY: 40 },
        listRect: { left: 10, right: 140, top: 0, bottom: 180 },
        folders,
      }),
    ).toBeNull();
    expect(
      resolveAssetFolderIdFromPoint({
        point: { clientX: 120, clientY: 40 },
        listRect: { left: 0, right: 140, top: 0, bottom: 180 },
        folders,
      }),
    ).toBeNull();
  });

  it('pins asset move folder labels only when their header is outside the list viewport', () => {
    const listRect = { left: 0, right: 120, top: 100, bottom: 240 };

    expect(
      resolvePinnedAssetMoveFolderId({
        folderId: 'folder-role',
        listRect,
        headerRect: { left: 0, right: 120, top: 40, bottom: 80 },
      }),
    ).toBe('folder-role');
    expect(
      resolvePinnedAssetMoveFolderId({
        folderId: 'folder-role',
        listRect,
        headerRect: { left: 0, right: 120, top: 260, bottom: 300 },
      }),
    ).toBe('folder-role');
    expect(
      resolvePinnedAssetMoveFolderId({
        folderId: 'folder-role',
        listRect,
        headerRect: { left: 0, right: 120, top: 120, bottom: 150 },
      }),
    ).toBeNull();
    expect(
      resolvePinnedAssetMoveFolderId({
        folderId: null,
        listRect,
        headerRect: { left: 0, right: 120, top: 40, bottom: 80 },
      }),
    ).toBeNull();
  });

  it('updates marquee geometry from pointer coordinates and normalizes reverse drags', () => {
    const marquee = createAssetMarqueeFromPointer({
      pointerId: 5,
      point: { clientX: 180, clientY: 220 },
      containerRect: { left: 100, top: 200 },
    });

    expect(marquee).toEqual({
      pointerId: 5,
      startX: 80,
      startY: 20,
      currentX: 80,
      currentY: 20,
    });
    expect(
      moveAssetMarqueeToPointer({
        marquee,
        point: { clientX: 120, clientY: 205 },
        containerRect: { left: 100, top: 200 },
      }),
    ).toMatchObject({ currentX: 20, currentY: 5 });
    expect(
      createAssetMarqueeSelectionRect({
        marquee,
        point: { clientX: 120, clientY: 205 },
        containerRect: { left: 100, top: 200 },
      }),
    ).toEqual({
      left: 120,
      right: 180,
      top: 205,
      bottom: 220,
    });
  });

  it('selects only uploaded assets intersecting the marquee rectangle', () => {
    const assets = [
      createAsset({ id: 'asset-a' }),
      createAsset({ id: 'asset-b' }),
      createAsset({ id: 'built-in', sourceKind: 'built-in' }),
    ];
    const selectedIds = selectUploadedAssetsInRect({
      assets,
      assetTargets: [
        {
          assetId: 'asset-a',
          rect: { left: 10, right: 20, top: 10, bottom: 20 },
        },
        {
          assetId: 'asset-b',
          rect: { left: 30, right: 40, top: 30, bottom: 40 },
        },
        {
          assetId: 'built-in',
          rect: { left: 15, right: 25, top: 15, bottom: 25 },
        },
        {
          assetId: 'missing',
          rect: { left: 15, right: 25, top: 15, bottom: 25 },
        },
      ],
      selectionRect: { left: 20, right: 35, top: 20, bottom: 35 },
    });

    expect([...selectedIds]).toEqual(['asset-a', 'asset-b']);
  });
});