import ElementPlus from 'element-plus'
import { createPinia, setActivePinia } from 'pinia'
import { enableAutoUnmount, flushPromises, mount, type VueWrapper } from '@vue/test-utils'
import { afterAll, afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
import { useAccessPreviewStore } from '@/core/access/accessPreview'
import { useAuthStore } from '@/core/auth/auth'
import { listPlatformTenants as listPlatformCustomers, type PlatformTenantResource as PlatformCustomerResource } from '@/modules/iam'
import { listPlatformWarehouses, type PlatformWarehouseResource } from '@/modules/warehouses'
import DataTable from '@/shared/components/DataTable.vue'
import QueryToolbar from '@/shared/components/QueryToolbar.vue'
import {
  createPlatformPallet,
  getPlatformPallet,
  listPlatformPallets,
  type PlatformPalletResource,
} from '../api/platformPallets'
import PalletsView from './PalletsView.vue'

vi.mock('@/modules/iam', async (importOriginal) => {
  const actual = await importOriginal<typeof import('@/modules/iam')>()
  const listPlatformTenants = vi.fn<typeof actual.listPlatformTenants>()
  return { ...actual, listPlatformTenants }
})
vi.mock('@/modules/warehouses', () => ({ listPlatformWarehouses: vi.fn() }))
vi.mock('../api/platformPallets', () => ({
  listPlatformPallets: vi.fn(),
  getPlatformPallet: vi.fn(),
  createPlatformPallet: vi.fn(),
  updatePlatformPallet: vi.fn(),
  deletePlatformPallet: vi.fn(),
}))

class ResizeObserverStub implements ResizeObserver {
  observe() {}
  unobserve() {}
  disconnect() {}
}

function createMemoryStorage(): Storage {
  const values = new Map<string, string>()
  return {
    get length() { return values.size },
    clear: () => values.clear(),
    getItem: (key) => values.get(key) ?? null,
    key: (index) => [...values.keys()][index] ?? null,
    removeItem: (key) => values.delete(key),
    setItem: (key, value) => values.set(key, value),
  }
}

const customer = (id: number | string, tenantName: string): PlatformCustomerResource => ({
  id, tenantCode: String(id), tenantName, status: 'ACTIVE', legalName: tenantName,
  legalRepresentative: null, unifiedSocialCreditCode: null, contactName: null,
  contactPhone: null, contactEmail: null, servicePackage: null, contactWechat: null,
  salesOwnerName: null, paymentTermDays: null, enterpriseType: null, establishedDate: null,
  registeredCapital: null, registeredCapitalCurrency: null, registeredAddress: null,
  internalRemark: null, createdAt: null, approvedAt: null,
})

const warehouse: PlatformWarehouseResource = {
  id: '19001', tenantId: 10001, warehouseCode: 'CN-YW-01', warehouseName: '义乌收货仓',
  warehouseType: 'DOMESTIC', countryCode: 'CN', timezone: 'Asia/Shanghai', contactName: null,
  contactPhone: null, contactEmail: null, status: 'ACTIVE', remark: null,
}

const pallet: PlatformPalletResource = {
  id: '20001', tenantId: 10001, warehouseId: '19001', palletCode: 'TP-001', palletType: '木托盘',
  capacityCbm: '1.200000', remark: '标准川字托盘', createdAt: '2026-08-04T09:00:00', updatedAt: '2026-08-04T10:00:00',
}

async function mountView(permissions = [
  'platform:pallet:list', 'platform:pallet:create', 'platform:pallet:edit', 'platform:pallet:delete',
]) {
  vi.stubGlobal('localStorage', createMemoryStorage())
  vi.stubGlobal('sessionStorage', createMemoryStorage())
  const pinia = createPinia()
  setActivePinia(pinia)
  const auth = useAuthStore()
  auth.token = 'token'
  auth.permissions = permissions
  useAccessPreviewStore().initializeAfterLogin()
  const wrapper = mount(PalletsView, { attachTo: document.body, global: { plugins: [pinia, ElementPlus] } })
  await flushPromises()
  return wrapper
}

async function setFilterContext(wrapper: VueWrapper, customerId = '10001', warehouseId = '') {
  wrapper.findComponent(QueryToolbar).vm.$emit('update:modelValue', {
    customerId,
    warehouseId: '',
    palletCode: '',
    palletType: '',
  })
  await flushPromises()
  if (!warehouseId) return
  wrapper.findComponent(QueryToolbar).vm.$emit('update:modelValue', {
    customerId,
    warehouseId,
    palletCode: '',
    palletType: '',
  })
  await flushPromises()
}

async function loadRows(wrapper: VueWrapper, warehouseId = '') {
  await setFilterContext(wrapper, '10001', warehouseId)
  wrapper.findComponent(QueryToolbar).vm.$emit('search', {
    customerId: '10001',
    warehouseId,
    palletCode: '',
    palletType: '',
  })
  await flushPromises()
}

enableAutoUnmount(afterEach)
afterAll(() => vi.unstubAllGlobals())

describe('PalletsView', () => {
  beforeEach(() => {
    vi.stubGlobal('ResizeObserver', ResizeObserverStub)
    document.body.innerHTML = ''
    vi.mocked(listPlatformCustomers).mockReset().mockResolvedValue({
      records: [customer(10001, '默认企业'), customer('9223372036854775806', '雪花企业')], page: 1, size: 200, total: 2, pages: 1,
    })
    vi.mocked(listPlatformWarehouses).mockReset().mockResolvedValue({ records: [warehouse], page: 1, size: 200, total: 1, pages: 1 })
    vi.mocked(listPlatformPallets).mockReset().mockResolvedValue({ records: [pallet], page: 1, size: 20, total: 1, pages: 1 })
    vi.mocked(getPlatformPallet).mockReset().mockResolvedValue(pallet)
    vi.mocked(createPlatformPallet).mockReset().mockResolvedValue('20002')
  })

  it('starts with all customers and uses compact semantic filter widths', async () => {
    const wrapper = await mountView()
    const toolbar = wrapper.findComponent(QueryToolbar)
    const fields = toolbar.props('fields')

    expect(toolbar.props('modelValue')).toMatchObject({ customerId: '', warehouseId: '' })
    expect(fields.map((field) => [field.key, field.width])).toEqual([
      ['customerId', 260],
      ['warehouseId', 240],
      ['palletCode', 240],
      ['palletType', 180],
    ])
    expect(wrapper.find('.pallet-filter-toolbar').exists()).toBe(true)
    expect(fields.find((field) => field.key === 'customerId')?.placeholder).toBe('全部客户')
    expect(listPlatformWarehouses).not.toHaveBeenCalled()
    expect(listPlatformPallets).toHaveBeenCalledWith({
      page: 1, size: 20,
    })
  })

  it('loads warehouses after customer selection and omits an empty warehouse id when searching', async () => {
    const wrapper = await mountView()
    await loadRows(wrapper)

    expect(listPlatformWarehouses).toHaveBeenCalledWith(10001, 1, 200)
    expect(listPlatformPallets).toHaveBeenCalledWith({
      page: 1, size: 20, tenantId: 10001,
    })
    expect(wrapper.text()).toContain('TP-001')
    expect(wrapper.text()).toContain('木托盘')
    expect(wrapper.text()).toContain('1.2 m³')
    expect(wrapper.text()).toContain('义乌收货仓')
    expect(wrapper.text()).toContain('托盘列表')
    expect(wrapper.text()).not.toContain('启停托盘')
    expect(wrapper.text()).not.toContain('全部状态')
    expect(wrapper.text()).toContain('全部托盘类型')
    expect(wrapper.find('input[aria-label="所属企业"]').exists()).toBe(true)
    expect(wrapper.find('input[aria-label="所属仓库"]').exists()).toBe(true)
    expect(wrapper.find('.platform-tenant-selector').exists()).toBe(false)
    expect(wrapper.text()).not.toContain('租户')
    expect(wrapper.find('.data-table').exists()).toBe(true)
    expect(wrapper.find('.table-actions.pallet-row-actions').exists()).toBe(true)
    expect(wrapper.findAll('thead th').map((item) => item.text().trim())[0]).toBe('操作')
  })

  it('queries all customers explicitly without adding a customer id', async () => {
    vi.mocked(listPlatformPallets).mockResolvedValue({ records: [pallet], page: 1, size: 20, total: 41, pages: 3 })
    const wrapper = await mountView()
    const toolbar = wrapper.findComponent(QueryToolbar)

    toolbar.vm.$emit('search', { customerId: '', warehouseId: '', palletCode: '', palletType: '' })
    await flushPromises()
    expect(listPlatformPallets).toHaveBeenLastCalledWith({
      page: 1, size: 20,
    })

  })

  it('resets customer and dependent warehouse filters without sending an empty id', async () => {
    const wrapper = await mountView()
    await setFilterContext(wrapper, '10001', '19001')
    const toolbar = wrapper.findComponent(QueryToolbar)

    toolbar.vm.reset()
    await flushPromises()

    expect(toolbar.props('modelValue')).toMatchObject({ customerId: '', warehouseId: '' })
    expect(listPlatformPallets).toHaveBeenCalledTimes(2)
    expect(listPlatformPallets).toHaveBeenLastCalledWith({
      page: 1, size: 20,
    })
    expect(toolbar.props('fields').find((field) => field.key === 'customerId')?.placeholder).toBe('全部客户')
  })

  it('preserves a snowflake customer id when switching the enterprise filter', async () => {
    const wrapper = await mountView()
    const snowflakeId = '9223372036854775806'

    wrapper.findComponent(QueryToolbar).vm.$emit('update:modelValue', {
      customerId: snowflakeId,
      warehouseId: '',
      palletCode: '',
      palletType: '',
    })
    await flushPromises()

    expect(listPlatformWarehouses).toHaveBeenLastCalledWith(snowflakeId, 1, 200)
  })

  it('applies pallet filters only after search', async () => {
    const wrapper = await mountView()
    await setFilterContext(wrapper, '10001', '19001')
    await wrapper.find('input[placeholder="托盘编码（模糊查询）"]').setValue('TP-00')
    expect(listPlatformPallets).toHaveBeenCalledTimes(1)

    wrapper.findComponent(QueryToolbar).vm.$emit('search', {
      customerId: '10001', warehouseId: '19001', palletCode: 'TP-00', palletType: '木托盘',
    })
    await flushPromises()

    expect(listPlatformPallets).toHaveBeenLastCalledWith({
      page: 1, size: 20, tenantId: 10001, warehouseId: 19001, palletCode: 'TP-00', palletType: '木托盘',
    })
  })

  it('creates a pallet in the selected warehouse with the real request fields', async () => {
    const wrapper = await mountView()
    await setFilterContext(wrapper, '10001', '19001')
    const createButton = wrapper.findAll('button').find((button) => button.text().trim() === '新增托盘')
    await createButton?.trigger('click')
    await flushPromises()

    await wrapper.find('input[placeholder="例如 TP-001"]').setValue('TP-002')
    const palletTypeItem = wrapper.findAll('.el-form-item').find((item) => item.text().includes('托盘类型'))
    palletTypeItem?.findComponent({ name: 'ElSelect' }).vm.$emit('update:modelValue', '塑料托盘')
    const capacity = wrapper.findComponent({ name: 'ElInputNumber' })
    capacity.vm.$emit('update:modelValue', 1.5)
    await wrapper.find('textarea[placeholder="可填写规格、材质或现场识别说明"]').setValue('蓝色标准托盘')
    const saveButton = wrapper.findAll('button').find((button) => button.text().trim() === '保存托盘')
    await saveButton?.trigger('click')
    await flushPromises()

    expect(createPlatformPallet).toHaveBeenCalledWith(10001, {
      warehouseId: 19001, palletCode: 'TP-002', palletType: '塑料托盘', capacityCbm: 1.5, remark: '蓝色标准托盘',
    })
  })

  it('hides all write actions without write permissions', async () => {
    const wrapper = await mountView(['platform:pallet:list'])

    expect(wrapper.find('.panel-heading button').exists()).toBe(false)
    const actions = wrapper.find('.pallet-row-actions').text()
    expect(actions).not.toContain('编辑')
    expect(actions).not.toContain('删除')
    expect(actions).toContain('查看')
  })

  it('shows a recoverable list failure instead of demo data', async () => {
    vi.mocked(listPlatformPallets).mockRejectedValueOnce(new Error('Gateway unavailable'))
    const wrapper = await mountView()

    expect(wrapper.text()).toContain('托盘列表暂时无法加载')
    expect(wrapper.text()).toContain('Gateway unavailable')
    expect(wrapper.text()).toContain('重新加载')
    expect(wrapper.text()).not.toContain('TP-001')
  })

  it('stops dependent requests when the enterprise filter cannot load', async () => {
    vi.mocked(listPlatformCustomers).mockRejectedValueOnce(new Error('Gateway unavailable'))
    const wrapper = await mountView()

    expect(wrapper.text()).toContain('所属企业列表暂时无法加载')
    expect(wrapper.text()).toContain('重新加载')
    expect(listPlatformWarehouses).not.toHaveBeenCalled()
    expect(listPlatformPallets).toHaveBeenCalledWith({
      page: 1, size: 20,
    })
  })

  it('shows only the pallet fields exposed by the backend contract', async () => {
    const crossCustomerPallet = { ...pallet, tenantId: '9223372036854775806' }
    vi.mocked(listPlatformPallets).mockResolvedValue({ records: [crossCustomerPallet], page: 1, size: 20, total: 1, pages: 1 })
    vi.mocked(getPlatformPallet).mockResolvedValue(crossCustomerPallet)
    const wrapper = await mountView()
    await loadRows(wrapper)
    expect(wrapper.findComponent(DataTable).props('data')).toEqual([crossCustomerPallet])
    const tableBody = wrapper.find('.el-table__body-wrapper')
    const viewButton = tableBody.findAll('.pallet-row-actions button').find((button) => button.text().trim() === '查看')
    await viewButton?.trigger('click')
    await flushPromises()

    expect(getPlatformPallet).toHaveBeenCalledWith('9223372036854775806', 19001, '20001')
    expect(document.body.textContent).toContain('所属企业')
    expect(document.body.textContent).toContain('雪花企业（9223372036854775806）')
    expect(document.body.textContent).toContain('托盘编码')
    expect(document.body.textContent).toContain('托盘类型')
    expect(document.body.textContent).toContain('托盘容积')
    expect(document.body.textContent).toContain('归属信息')
    expect(document.body.textContent).toContain('托盘规格')
    expect(document.body.textContent).toContain('记录信息')
    expect(document.body.textContent).not.toContain('企业 ID')
    expect(document.body.textContent).not.toContain('租户')
    expect(document.body.textContent).not.toContain('托盘状态')
    expect(document.body.textContent).not.toContain('最大承重')
  })
})