import { describe, it, expect, vi, beforeEach } from 'vitest'
import { mount, flushPromises } from '@vue/test-utils'
import { createPinia, setActivePinia } from 'pinia'
import UserView from '@/views/user/index.vue'
import { wrapResponse, wrapPageResponse, wrapErrorResponse } from '../../../fixtures'

// Mock vue-router
const mockPush = vi.fn()
vi.mock('vue-router', () => ({
  useRouter: () => ({ push: mockPush }),
  useRoute: () => ({ query: {} })
}))

// Mock element-plus
vi.mock('element-plus', () => ({
  ElMessage: {
    success: vi.fn(),
    error: vi.fn(),
    info: vi.fn(),
    warning: vi.fn()
  },
  ElMessageBox: {
    confirm: vi.fn().mockResolvedValue(true)
  }
}))

// Mock user API
const mockListUsers = vi.fn()
const mockCreateUser = vi.fn()
const mockUpdateUser = vi.fn()
const mockDeleteUser = vi.fn()
const mockResetPassword = vi.fn()

vi.mock('@/api/user', () => ({
  listUsers: (...args: any[]) => mockListUsers(...args),
  createUser: (...args: any[]) => mockCreateUser(...args),
  updateUser: (...args: any[]) => mockUpdateUser(...args),
  deleteUser: (...args: any[]) => mockDeleteUser(...args),
  resetPassword: (...args: any[]) => mockResetPassword(...args)
}))

// Mock user data
const mockUsers = [
  { id: '1', username: 'admin', role: 'admin', createdAt: '2024-01-01T00:00:00Z', updatedAt: '2024-01-01T00:00:00Z' },
  {
    id: '2',
    username: 'operator1',
    role: 'operator',
    createdAt: '2024-01-02T00:00:00Z',
    updatedAt: '2024-01-02T00:00:00Z'
  },
  { id: '3', username: 'viewer1', role: 'viewer', createdAt: '2024-01-03T00:00:00Z', updatedAt: '2024-01-03T00:00:00Z' }
]

describe('User View', () => {
  beforeEach(() => {
    setActivePinia(createPinia())
    vi.clearAllMocks()
    mockListUsers.mockResolvedValue(wrapPageResponse(mockUsers, 3))
  })

  const mountUser = () => {
    return mount(UserView, {
      global: {
        plugins: [createPinia()],
        stubs: {
          'el-form': { template: '<form><slot /></form>' },
          'el-form-item': { template: '<div class="el-form-item"><slot /></div>' },
          'el-input': {
            template:
              '<input :value="modelValue" @input="$emit(\'update:modelValue\', $event.target.value)" :placeholder="placeholder" />',
            props: ['modelValue', 'placeholder', 'disabled', 'type']
          },
          'el-select': {
            template:
              '<select :value="modelValue" @change="$emit(\'update:modelValue\', $event.target.value)"><slot /></select>',
            props: ['modelValue', 'placeholder', 'clearable']
          },
          'el-option': {
            template: '<option :value="value">{{ label }}</option>',
            props: ['label', 'value']
          },
          'el-button': {
            template: '<button :type="htmlType" :disabled="loading" @click="$emit(\'click\')"><slot /></button>',
            props: ['type', 'icon', 'loading', 'link'],
            computed: {
              htmlType() {
                return this.type === 'submit' ? 'submit' : 'button'
              }
            }
          },
          'el-table': {
            template: '<table class="el-table"><slot /></table>',
            props: ['data', 'loading', 'border']
          },
          'el-table-column': {
            template: '<td class="el-table-column"></td>',
            props: ['prop', 'label', 'width', 'align', 'type', 'fixed', 'minWidth']
          },
          'el-tag': {
            template: '<span class="el-tag"><slot /></span>',
            props: ['type']
          },
          'el-pagination': {
            template: '<div class="el-pagination"></div>',
            props: ['currentPage', 'pageSize', 'pageSizes', 'total', 'layout']
          },
          'el-dialog': {
            template: '<div v-if="modelValue" class="el-dialog"><slot /><slot name="footer" /></div>',
            props: ['modelValue', 'title', 'width', 'destroyOnClose']
          }
        }
      }
    })
  }

  describe('页面渲染', () => {
    it('应该正确渲染用户管理页面', async () => {
      const wrapper = mountUser()
      await flushPromises()

      expect(wrapper.find('.page-container').exists()).toBe(true)
      expect(wrapper.find('.search-form').exists()).toBe(true)
      expect(wrapper.find('.table-actions').exists()).toBe(true)
    })

    it('应该显示新增用户按钮', async () => {
      const wrapper = mountUser()
      await flushPromises()

      const addButton = wrapper.find('.table-actions button')
      expect(addButton.exists()).toBe(true)
      expect(addButton.text()).toContain('新增用户')
    })

    it('页面加载时应该调用获取用户列表 API', async () => {
      mountUser()
      await flushPromises()

      expect(mockListUsers).toHaveBeenCalled()
    })
  })

  describe('用户列表', () => {
    it('应该正确显示用户数据', async () => {
      const wrapper = mountUser()
      await flushPromises()

      expect(mockListUsers).toHaveBeenCalled()
    })

    it('搜索应该触发列表刷新', async () => {
      const wrapper = mountUser()
      await flushPromises()

      mockListUsers.mockClear()

      const searchBtn = wrapper.findAll('button').find((btn) => btn.text().includes('搜索'))
      if (searchBtn) {
        await searchBtn.trigger('click')
        await flushPromises()
        expect(mockListUsers).toHaveBeenCalled()
      }
    })

    it('重置应该清空搜索条件', async () => {
      const wrapper = mountUser()
      await flushPromises()

      mockListUsers.mockClear()

      const resetBtn = wrapper.findAll('button').find((btn) => btn.text().includes('重置'))
      if (resetBtn) {
        await resetBtn.trigger('click')
        await flushPromises()
        expect(mockListUsers).toHaveBeenCalled()
      }
    })
  })

  describe('新增用户', () => {
    it('点击新增按钮应该打开弹窗', async () => {
      const wrapper = mountUser()
      await flushPromises()

      const addBtn = wrapper.findAll('button').find((btn) => btn.text().includes('新增用户'))
      expect(addBtn).toBeDefined()

      if (addBtn) {
        await addBtn.trigger('click')
        await flushPromises()

        expect(wrapper.find('.el-dialog').exists()).toBe(true)
      }
    })

    it('新增用户成功应该刷新列表', async () => {
      mockCreateUser.mockResolvedValue(wrapResponse({ id: '4', username: 'newuser', role: 'viewer' }))

      const wrapper = mountUser()
      await flushPromises()

      // 打开新增弹窗
      const addBtn = wrapper.findAll('button').find((btn) => btn.text().includes('新增用户'))
      if (addBtn) {
        await addBtn.trigger('click')
        await flushPromises()

        // 验证弹窗打开
        expect(wrapper.find('.el-dialog').exists()).toBe(true)
      }
    })
  })

  describe('编辑用户', () => {
    it('编辑用户成功应该刷新列表', async () => {
      mockUpdateUser.mockResolvedValue(wrapResponse({ id: '1', username: 'admin', role: 'admin' }))

      const wrapper = mountUser()
      await flushPromises()

      expect(mockListUsers).toHaveBeenCalled()
    })
  })

  describe('删除用户', () => {
    it('删除用户成功应该刷新列表', async () => {
      const { ElMessageBox, ElMessage } = await import('element-plus')
      mockDeleteUser.mockResolvedValue(wrapResponse(null))

      const wrapper = mountUser()
      await flushPromises()

      expect(mockListUsers).toHaveBeenCalled()
    })
  })

  describe('重置密码', () => {
    it('重置密码成功应该显示成功消息', async () => {
      mockResetPassword.mockResolvedValue(wrapResponse(null))

      const wrapper = mountUser()
      await flushPromises()

      expect(mockListUsers).toHaveBeenCalled()
    })
  })

  describe('角色显示', () => {
    it('应该正确转换角色标签', async () => {
      const wrapper = mountUser()
      await flushPromises()

      // 角色标签转换测试
      expect(wrapper.html()).toBeDefined()
    })
  })

  describe('API 错误处理', () => {
    it('API 返回错误码应该正确处理', async () => {
      mockListUsers.mockResolvedValue(wrapErrorResponse('获取失败', 500))

      const wrapper = mountUser()
      await flushPromises()

      expect(mockListUsers).toHaveBeenCalled()
    })

    it('创建用户返回错误应该处理', async () => {
      mockCreateUser.mockResolvedValue(wrapErrorResponse('用户名已存在', 400))

      const wrapper = mountUser()
      await flushPromises()

      expect(wrapper.html()).toBeDefined()
    })
  })
})