import * as path from 'path';

const UPLOADER_UTS = path.resolve(
  __dirname,
  '../../../mpuniapp/components/image-uploader/useImageUploader.uts'
);

function loadUploaderUTS() {
  // eslint-disable-next-line @typescript-eslint/no-require-imports
  return require(UPLOADER_UTS);
}

describe('Image Uploader (mpuniapp) UTS Unit Tests', () => {
  it('1. 初始化状态正确', () => {
    const { createImageUploaderState } = loadUploaderUTS();
    const state = createImageUploaderState();
    expect(state.images).toEqual([]);
    expect(state.uploading).toBe(false);
    expect(state.errorMessage).toBe('');
  });

  it('2. 单图与多图添加，遵守 maxCount 截断', () => {
    const { createImageUploaderState, addImageUrls } = loadUploaderUTS();
    const state = createImageUploaderState();
    addImageUrls(state, ['https://cdn.omnicard.ai/img1.jpg'], 3);
    expect(state.images).toEqual(['https://cdn.omnicard.ai/img1.jpg']);

    // 批量添加多张，上限为 3
    addImageUrls(
      state,
      [
        'https://cdn.omnicard.ai/img2.jpg',
        'https://cdn.omnicard.ai/img3.jpg',
        'https://cdn.omnicard.ai/img4.jpg',
      ],
      3
    );
    expect(state.images).toEqual([
      'https://cdn.omnicard.ai/img1.jpg',
      'https://cdn.omnicard.ai/img2.jpg',
      'https://cdn.omnicard.ai/img3.jpg',
    ]);
  });

  it('3. 单张图片删除与全部清空', () => {
    const { createImageUploaderState, addImageUrls, removeImageByIndex, clearAllImages } =
      loadUploaderUTS();
    const state = createImageUploaderState();
    addImageUrls(state, [
      'https://cdn.omnicard.ai/img1.jpg',
      'https://cdn.omnicard.ai/img2.jpg',
      'https://cdn.omnicard.ai/img3.jpg',
    ]);

    // 删除第 2 张 (索引 1)
    removeImageByIndex(state, 1);
    expect(state.images).toEqual([
      'https://cdn.omnicard.ai/img1.jpg',
      'https://cdn.omnicard.ai/img3.jpg',
    ]);

    // 全部清空
    clearAllImages(state);
    expect(state.images).toEqual([]);
  });

  it('4. 大图预览 URL 序列提取', () => {
    const { createImageUploaderState, addImageUrls, resolvePreviewUrls } = loadUploaderUTS();
    const state = createImageUploaderState();
    addImageUrls(state, ['https://cdn.omnicard.ai/a.png', 'https://cdn.omnicard.ai/b.png']);
    const previewUrls = resolvePreviewUrls(state);
    expect(previewUrls).toEqual([
      'https://cdn.omnicard.ai/a.png',
      'https://cdn.omnicard.ai/b.png',
    ]);
  });

  it('5. 模拟选图与上传流程成功', async () => {
    const { createImageUploaderState, chooseAndUploadImages } = loadUploaderUTS();
    const state = createImageUploaderState();
    const mockChooseFn = jest.fn((opts: { count?: number; success?: (res: { tempFilePaths: string[] }) => void }) => {
      opts.success?.({
        tempFilePaths: [
          'file:///tmp/mock1.png',
          'file:///tmp/mock2.png',
        ],
      });
    });

    const success = await chooseAndUploadImages(state, {
      chooseImageFn: mockChooseFn,
      maxCount: 5,
      multiple: true,
    });

    expect(success).toBe(true);
    expect(state.images.length).toBe(2);
    expect(state.uploading).toBe(false);
  });
});