import { describe, it, expect, vi, beforeEach } from 'vitest'
import { mount, flushPromises } from '@vue/test-utils'
import { createPinia, setActivePinia } from 'pinia'
import ThemeSwitch from '@/components/ThemeSwitch.vue'
import { useThemeStore } from '@/store/theme'

// Mock @vueuse/core
vi.mock('@vueuse/core', () => ({
  useStorage: vi.fn((key, defaultValue) => {
    return { value: defaultValue }
  }),
  usePreferredDark: vi.fn(() => ({ value: false }))
}))

describe('ThemeSwitch Component', () => {
  beforeEach(() => {
    setActivePinia(createPinia())
    vi.clearAllMocks()
  })

  const mountThemeSwitch = () => {
    return mount(ThemeSwitch, {
      global: {
        plugins: [createPinia()],
        stubs: {
          'el-tooltip': {
            template: '<div class="el-tooltip"><slot /></div>',
            props: ['effect', 'content', 'placement']
          },
          'el-button': {
            template: '<button class="switch-btn" @click="$emit(\'click\')"><slot /></button>',
            props: ['circle', 'text']
          },
          'el-icon': { template: '<span class="el-icon"><slot /></span>', props: ['size'] },
          Moon: { template: '<span class="icon-moon">Moon</span>' },
          Sunny: { template: '<span class="icon-sunny">Sunny</span>' },
          Setting: { template: '<span class="icon-setting">Setting</span>' }
        }
      }
    })
  }

  describe('渲染', () => {
    it('应该正确渲染主题切换组件', () => {
      const wrapper = mountThemeSwitch()

      expect(wrapper.find('.theme-switch').exists()).toBe(true)
    })

    it('应该显示两个按钮', () => {
      const wrapper = mountThemeSwitch()

      const buttons = wrapper.findAll('.switch-btn')
      expect(buttons.length).toBe(2)
    })

    it('浅色模式下应该显示太阳图标', () => {
      const wrapper = mountThemeSwitch()

      expect(wrapper.find('.icon-sunny').exists()).toBe(true)
    })
  })

  describe('主题切换', () => {
    it('点击主题按钮应该能触发点击事件', async () => {
      const wrapper = mountThemeSwitch()

      const buttons = wrapper.findAll('.switch-btn')
      expect(buttons.length).toBeGreaterThan(0)

      // 验证按钮可以被点击
      await buttons[0].trigger('click')

      // 验证没有抛出错误
      expect(true).toBe(true)
    })

    it('主题按钮应该存在', () => {
      const wrapper = mountThemeSwitch()

      const themeButton = wrapper.findAll('.switch-btn')[0]
      expect(themeButton.exists()).toBe(true)
    })
  })

  describe('设置按钮', () => {
    it('点击设置按钮应该触发 openSettings 事件', async () => {
      const wrapper = mountThemeSwitch()

      const buttons = wrapper.findAll('.switch-btn')
      await buttons[1].trigger('click')

      expect(wrapper.emitted('openSettings')).toBeTruthy()
    })
  })

  describe('提示信息', () => {
    it('应该显示切换模式的提示', () => {
      const wrapper = mountThemeSwitch()

      expect(wrapper.findAll('.el-tooltip').length).toBeGreaterThan(0)
    })
  })
})