import { flushPromises, mount } from '@vue/test-utils'
import ElementPlus, { ElMessage } from 'element-plus'
import { afterEach, beforeEach, describe, expect, test, vi } from 'vitest'
import MasterDataSettings from './MasterDataSettings.vue'
import { codeRulesApi, materialCategoriesApi, unitsApi } from '../../api/masterData'

vi.mock('../../api/masterData', () => ({
  materialCategoriesApi: { list: vi.fn(), create: vi.fn(), update: vi.fn() },
  unitsApi: { list: vi.fn(), create: vi.fn(), update: vi.fn() },
  codeRulesApi: { list: vi.fn(), create: vi.fn(), update: vi.fn() }
}))

const STANDARD_PART_DESCRIPTION =
  '1.核心定义：国家/行业通用标准化零件，型号固定，无需绘图、无需任何二次加工。 2.包含说明：设备通用紧固、锁紧、防松类标准配件，采用全行业通用规格，无非标改造。 3.现场举例：内六角螺钉、沉头螺钉、组合螺钉。 4.边界区分：国标通用紧固配件统一归此类；非标定制紧固结构件归入 A04。'

// 真实的 ElSelect 在 jsdom 下会因状态双向绑定反复触发自身更新而报
// "Maximum recursive updates exceeded"。这里只关心表单校验，用轻量替身绕开。
const SelectStub = {
  props: ['modelValue', 'placeholder'],
  emits: ['update:modelValue', 'change'],
  template: '<div data-test="select"><slot /></div>'
}

const OptionStub = {
  props: ['label', 'value'],
  template: '<span class="option">{{ label }}</span>'
}

function mountSettings() {
  return mount(MasterDataSettings, {
    global: {
      plugins: [ElementPlus],
      stubs: { teleport: true, ElSelect: SelectStub, ElOption: OptionStub }
    }
  })
}

function detailButtons(wrapper) {
  return wrapper.findAll('button').filter(button => button.text() === '描述详情')
}

describe('物料分类描述详情', () => {
  beforeEach(() => {
    materialCategoriesApi.list.mockResolvedValue({
      data: [
        { id: 1, code: 'A', name: '机械结构类', description: '纯机械传动件纳入本类管理。', parent_id: null, status: 'active' },
        { id: 2, code: 'A01', name: '标准件', description: STANDARD_PART_DESCRIPTION, parent_id: 1, status: 'active' },
        { id: 3, code: 'A02', name: '成品件', description: '', parent_id: 1, status: 'active' }
      ]
    })
    unitsApi.list.mockResolvedValue({ data: [] })
    codeRulesApi.list.mockResolvedValue({ data: [] })
  })

  test('每一行都提供描述详情按钮，描述正文不直接铺在表格里', async () => {
    const wrapper = mountSettings()
    await flushPromises()

    expect(detailButtons(wrapper)).toHaveLength(3)
    expect(wrapper.text()).not.toContain('国家/行业通用标准化零件')
    wrapper.unmount()
  })

  test('点击描述详情后弹窗展示该行的完整描述', async () => {
    const wrapper = mountSettings()
    await flushPromises()

    await detailButtons(wrapper)[1].trigger('click')
    await flushPromises()

    expect(wrapper.text()).toContain('A01 标准件')
    expect(wrapper.text()).toContain(STANDARD_PART_DESCRIPTION)
    expect(wrapper.text()).not.toContain('纯机械传动件纳入本类管理。')
    wrapper.unmount()
  })

  test('描述为空时弹窗显示占位文案', async () => {
    const wrapper = mountSettings()
    await flushPromises()

    await detailButtons(wrapper)[2].trigger('click')
    await flushPromises()

    expect(wrapper.text()).toContain('A02 成品件')
    expect(wrapper.text()).toContain('暂无描述')
    wrapper.unmount()
  })
})

describe('基础配置表单必填校验', () => {
  let warnSpy

  // 表单项没有 placeholder，按 label 文本定位输入框。
  function inputByLabel(wrapper, label) {
    return wrapper.findAll('.el-form-item')
      .find(node => node.find('.el-form-item__label').text() === label)
      .find('input')
  }

  function findButton(wrapper, text) {
    return wrapper.findAll('button').find(button => button.text().includes(text))
  }

  async function openCreateDialog(wrapper) {
    await findButton(wrapper, '新增').trigger('click')
    await flushPromises()
  }

  async function clickSave(wrapper) {
    await findButton(wrapper, '保存').trigger('click')
    await flushPromises()
  }

  async function switchTab(wrapper, label) {
    await wrapper.findAll('.el-tabs__item').find(node => node.text() === label).trigger('click')
    await flushPromises()
  }

  beforeEach(() => {
    warnSpy = vi.spyOn(ElMessage, 'warning').mockImplementation(() => {})
    materialCategoriesApi.list.mockResolvedValue({ data: [] })
    materialCategoriesApi.create.mockReset().mockResolvedValue({ data: {} })
    materialCategoriesApi.update.mockReset().mockResolvedValue({ data: {} })
    unitsApi.list.mockResolvedValue({ data: [] })
    unitsApi.create.mockReset().mockResolvedValue({ data: {} })
    codeRulesApi.list.mockResolvedValue({ data: [] })
    codeRulesApi.create.mockReset().mockResolvedValue({ data: {} })
  })

  afterEach(() => {
    vi.restoreAllMocks()
  })

  test('物料分类 tab：编码留空被拦下', async () => {
    const wrapper = mountSettings()
    await flushPromises()
    await openCreateDialog(wrapper)

    await clickSave(wrapper)

    expect(materialCategoriesApi.create).not.toHaveBeenCalled()
    expect(warnSpy).toHaveBeenCalledWith('请填写编码')
    wrapper.unmount()
  })

  test('物料分类 tab：只填了编码时提示名称', async () => {
    const wrapper = mountSettings()
    await flushPromises()
    await openCreateDialog(wrapper)

    await inputByLabel(wrapper, '编码').setValue('A03')
    await clickSave(wrapper)

    expect(materialCategoriesApi.create).not.toHaveBeenCalled()
    expect(warnSpy).toHaveBeenCalledWith('请填写名称')
    wrapper.unmount()
  })

  test('编码规则 tab：分类未选时提示物料分类', async () => {
    const wrapper = mountSettings()
    await flushPromises()
    await switchTab(wrapper, '编码规则')
    await openCreateDialog(wrapper)

    await clickSave(wrapper)

    expect(codeRulesApi.create).not.toHaveBeenCalled()
    expect(warnSpy).toHaveBeenCalledWith('请选择物料分类')
    wrapper.unmount()
  })

  test('编码规则 tab 不校验编码与名称', async () => {
    const wrapper = mountSettings()
    await flushPromises()
    await switchTab(wrapper, '编码规则')
    await openCreateDialog(wrapper)

    // 分类和前缀都为空，应当只提示分类，不应冒出"请填写编码"
    await clickSave(wrapper)

    expect(warnSpy).not.toHaveBeenCalledWith('请填写编码')
    expect(warnSpy).not.toHaveBeenCalledWith('请填写名称')
    wrapper.unmount()
  })
})