describe('library page', () => {
  afterEach(() => {
    delete global.Page
    delete global.wx
    jest.resetModules()
  })

  test('exposes mock categories and featured books by default', () => {
    let capturedPageConfig

    global.Page = config => {
      capturedPageConfig = config
    }

    const libraryPageModule = require('../pages/library/index')
    const pageData =
      typeof libraryPageModule.createLibraryPageData === 'function'
        ? libraryPageModule.createLibraryPageData()
        : capturedPageConfig?.data

    expect(libraryPageModule.createLibraryPageData).toEqual(expect.any(Function))
    expect(pageData.title).toBe('典籍')
    expect(pageData.searchButtonText).toBe('搜索')
    expect(pageData.activeCategoryId).toBe('featured')
    expect(pageData.currentCategoryName).toBe('精选')
    expect(pageData.categories).toHaveLength(9)
    expect(pageData.categories.map(item => item.name)).toEqual([
      '精选',
      '注解',
      '经论',
      '伤寒金匮',
      '医方',
      '本草',
      '针灸',
      '医案',
      '综合'
    ])
    expect(pageData.visibleBooks).toHaveLength(6)
    expect(pageData.visibleBooks[0]).toEqual(
      expect.objectContaining({
        id: 'huangdi-neijing-suwen',
        title: '黄帝内经素问',
        author: '王冰次',
        dynasty: '唐',
        period: '公元762年'
      })
    )
  })

  test('switches visible books when another category is selected', () => {
    let capturedPageConfig

    global.Page = config => {
      capturedPageConfig = config
    }

    require('../pages/library/index')

    const pageInstance = {
      data: {
        ...(capturedPageConfig.data || {})
      },
      setData(update) {
        this.data = {
          ...this.data,
          ...update
        }
      }
    }

    capturedPageConfig.handleCategoryTap.call(pageInstance, {
      currentTarget: {
        dataset: {
          categoryId: 'annotation'
        }
      }
    })

    expect(pageInstance.data.activeCategoryId).toBe('annotation')
    expect(pageInstance.data.currentCategoryName).toBe('注解')
    expect(pageInstance.data.visibleBooks).toEqual([
      expect.objectContaining({
        title: '黄帝内经素问集注'
      }),
      expect.objectContaining({
        title: '神农本草经辑注'
      }),
      expect.objectContaining({
        title: '难经集注'
      })
    ])
  })

  test('shows a toast while search is still mocked', () => {
    let capturedPageConfig

    global.Page = config => {
      capturedPageConfig = config
    }

    global.wx = {
      showToast: jest.fn()
    }

    require('../pages/library/index')

    capturedPageConfig.handleSearchTap()

    expect(global.wx.showToast).toHaveBeenCalledWith(
      expect.objectContaining({
        title: '搜索功能暂未开放',
        icon: 'none'
      })
    )
  })

  test('adds a visible mingli-hall bridge entry to the library tab', () => {
    let capturedPageConfig

    global.Page = config => {
      capturedPageConfig = config
    }

    global.wx = {
      navigateTo: jest.fn(),
      showToast: jest.fn()
    }

    const libraryPageModule = require('../pages/library/index')
    const pageData = libraryPageModule.createLibraryPageData()

    expect(pageData.domainBridge).toEqual(
      expect.objectContaining({
        title: '进入易学阁',
        route: '/packages/mingli/pages/hall/index'
      })
    )

    capturedPageConfig.handleDomainBridgeTap()

    expect(global.wx.navigateTo).toHaveBeenCalledWith({
      url: '/packages/mingli/pages/hall/index'
    })
  })
})