import ElementPlus from 'element-plus'
import { createPinia, setActivePinia } from 'pinia'
import { enableAutoUnmount, flushPromises, mount } from '@vue/test-utils'
import { afterAll, afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
import {
  listPlatformPartners,
  type PlatformPartnerResource,
} from '@/modules/master-data/counterparties/api/platformPartners'
import { useAccessPreviewStore } from '@/core/access/accessPreview'
import { useAuthStore } from '@/core/auth/auth'
import { listPlatformTenants, type PlatformTenantResource } from '../../../iam/api/platformIam'
import PlatformTenantSelector from '../../../iam/components/PlatformTenantSelector.vue'
import PartnersView from './PartnersView.vue'

vi.mock('@/modules/master-data/counterparties/api/platformPartners', () => ({
  listPlatformPartners: vi.fn(),
  createPlatformPartner: vi.fn(),
  getPlatformPartner: vi.fn(),
  downloadPlatformPartnerImportTemplate: vi.fn(),
  importPlatformPartners: vi.fn(),
  updatePlatformPartner: vi.fn(),
  changePlatformPartnerStatus: vi.fn(),
}))

vi.mock('../../../iam/api/platformIam', () => ({ listPlatformTenants: 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 partner: PlatformPartnerResource = {
  id: '19001',
  tenantId: 10001,
  dataScopeId: 10001,
  partnerCode: 'CUS-001',
  partnerName: '深圳示例贸易有限公司',
  partnerType: 'CUSTOMER',
  types: ['CUSTOMER', 'SHIPPER'],
  contactName: '张三',
  contactPhone: '13800138000',
  contactEmail: 'contact@example.com',
  countryCode: 'CN',
  province: '广东省',
  city: '深圳市',
  district: '宝安区',
  addressLine: '航城街道示例路 1 号',
  postalCode: '518000',
  status: 'ACTIVE',
  remark: '长期合作单位',
  updatedAt: '2026-07-30T22:45:00',
}

const tenant = (id: number | string, tenantName: string): PlatformTenantResource => ({
  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 snowflakeTenantId = '9223372036854775806'

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

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

describe('PartnersView real API integration', () => {
  beforeEach(() => {
    vi.stubGlobal('ResizeObserver', ResizeObserverStub)
    document.body.innerHTML = ''
    vi.mocked(listPlatformTenants).mockReset().mockResolvedValue({
      records: [tenant(10001, '默认企业'), tenant(snowflakeTenantId, '雪花企业')], page: 1, size: 200, total: 2, pages: 1,
    })
    vi.mocked(listPlatformPartners).mockReset().mockResolvedValue({
      records: [partner], page: 1, size: 20, total: 1, pages: 1,
    })
  })

  it('loads the fixed tenant page and renders the real partner fields', async () => {
    const wrapper = await mountView()

    expect(listPlatformPartners).toHaveBeenCalledWith(10001, {
      page: 1, size: 20, keyword: undefined, type: undefined, status: undefined,
    })
    expect(wrapper.text()).toContain('深圳示例贸易有限公司')
    expect(wrapper.text()).toContain('CUS-001')
    expect(wrapper.text()).toContain('contact@example.com')
    expect(wrapper.text()).toContain('广东省 深圳市 宝安区 航城街道示例路 1 号')
    expect(wrapper.text()).not.toContain('往来单位总数')
    expect(wrapper.text()).not.toContain('往来单位档案')
    expect(wrapper.find('.query-toolbar').exists()).toBe(true)
    expect(wrapper.find('.data-table').exists()).toBe(true)
    expect(wrapper.find('.table-panel').exists()).toBe(true)
  })

  it('preserves a snowflake tenant id as a string when switching enterprises', async () => {
    const wrapper = await mountView()

    wrapper.findComponent(PlatformTenantSelector).vm.$emit('update:modelValue', snowflakeTenantId)
    await flushPromises()

    expect(listPlatformPartners).toHaveBeenLastCalledWith(snowflakeTenantId, {
      page: 1, size: 20, keyword: undefined, type: undefined, status: undefined,
    })
  })

  it('updates filters locally and only requests after search', async () => {
    const wrapper = await mountView()
    const keywordInput = wrapper.find('input[placeholder="单位名称、编码、联系人或电话"]')

    await keywordInput.setValue('深圳')
    await flushPromises()
    expect(listPlatformPartners).toHaveBeenCalledTimes(1)

    const searchButton = wrapper.findAll('button').find((button) => button.text().trim() === '查询')
    expect(searchButton).toBeDefined()
    await searchButton?.trigger('click')
    await flushPromises()

    expect(listPlatformPartners).toHaveBeenCalledTimes(2)
    expect(listPlatformPartners).toHaveBeenLastCalledWith(10001, {
      page: 1, size: 20, keyword: '深圳', type: undefined, status: undefined,
    })
  })

  it('shows useful placeholders and visible required markers in the create form', async () => {
    const wrapper = await mountView()
    const createButton = wrapper.findAll('button').find((button) => button.text().trim() === '新增往来单位')
    expect(createButton).toBeDefined()
    await createButton?.trigger('click')
    await flushPromises()

    expect(document.querySelector('input[placeholder="请输入工商登记或常用单位名称"]')).not.toBeNull()
    expect(document.querySelector('input[placeholder="请输入主要联系人姓名"]')).not.toBeNull()
    expect(document.querySelector('textarea[placeholder="请输入街道、园区、楼栋及门牌信息"]')).not.toBeNull()
    expect(document.querySelectorAll('.el-form-item.is-required').length).toBe(9)
  })

  it('shows a recoverable API failure without demo data', async () => {
    vi.mocked(listPlatformPartners).mockRejectedValueOnce(new Error('Gateway unavailable'))
    const wrapper = await mountView()

    expect(wrapper.text()).toContain('往来单位列表暂时无法加载')
    expect(wrapper.text()).toContain('Gateway unavailable')
    expect(wrapper.text()).toContain('重新加载')
    expect(wrapper.text()).not.toContain('深圳示例贸易有限公司')
  })
})