import ElementPlus from 'element-plus'
import { flushPromises, mount } from '@vue/test-utils'
import { beforeEach, describe, expect, it, vi } from 'vitest'
import { listPlatformTenants, type PlatformTenantResource } from '../api/platformIam'
import PlatformTenantSelector from './PlatformTenantSelector.vue'

vi.mock('../api/platformIam', () => ({ listPlatformTenants: vi.fn() }))

const customer = {
  id: '190000000000000008',
  tenantCode: 'CUS-008',
  tenantName: '柏悦物流',
  status: 'ACTIVE',
} as PlatformTenantResource

function mountSelector(props: { modelValue?: string; label?: string } = {}) {
  return mount(PlatformTenantSelector, {
    props: { modelValue: props.modelValue ?? '', ...(props.label ? { label: props.label } : {}) },
    global: { plugins: [ElementPlus] },
  })
}

describe('PlatformTenantSelector customer labels', () => {
  beforeEach(() => {
    vi.clearAllMocks()
    vi.mocked(listPlatformTenants).mockResolvedValue({ records: [customer], page: 1, size: 200, total: 1, pages: 1 })
  })

  it('shows business identity and status without exposing the internal id', async () => {
    const wrapper = mountSelector({ modelValue: String(customer.id) })
    await flushPromises()

    expect(listPlatformTenants).toHaveBeenCalledWith({ page: 1, size: 200, status: 'ACTIVE' })
    expect(wrapper.text()).toContain('目标客户')
    expect(document.body.textContent).toContain('柏悦物流 · 启用')
    expect(document.body.textContent).not.toContain('CUS-008')
    expect(document.body.textContent).not.toContain(String(customer.id))
  })

  it('keeps the internal id only as the emitted contract value', async () => {
    const wrapper = mountSelector()
    await flushPromises()

    expect(wrapper.emitted('update:modelValue')).toEqual([[String(customer.id)]])
    expect(wrapper.text()).not.toContain(String(customer.id))
  })

  it('selects the first active customer without preferring a fixed customer id', async () => {
    vi.mocked(listPlatformTenants).mockResolvedValue({
      records: [
        { ...customer, id: '9', tenantName: '停用客户', status: 'DISABLED' },
        { ...customer, id: '20002', tenantName: '首个客户' },
        { ...customer, id: '10001', tenantName: '后续客户' },
      ],
      page: 1, size: 200, total: 3, pages: 1,
    })
    const wrapper = mountSelector()
    await flushPromises()

    expect(wrapper.emitted('update:modelValue')).toEqual([['20002']])
  })

  it('preserves an explicitly selected customer', async () => {
    const wrapper = mountSelector({ modelValue: String(customer.id) })
    await flushPromises()

    expect(wrapper.emitted('update:modelValue')).toBeUndefined()
  })

  it('keeps non-active customers out of the selectable options', async () => {
    vi.mocked(listPlatformTenants).mockResolvedValue({
      records: [customer, { ...customer, id: '9', tenantName: '停用客户', status: 'DISABLED' }],
      page: 1, size: 200, total: 2, pages: 1,
    })
    mountSelector({ modelValue: String(customer.id) })
    await flushPromises()

    expect(document.body.textContent).toContain('柏悦物流 · 启用')
    expect(document.body.textContent).not.toContain('停用客户')
  })

  it('safely degrades labels when customer name or code is missing', async () => {
    vi.mocked(listPlatformTenants).mockResolvedValue({
      records: [
        { ...customer, id: '1', tenantName: '', tenantCode: 'CUS-001', status: 'ACTIVE' },
        { ...customer, id: '2', tenantName: '远航供应链', tenantCode: '', status: 'ACTIVE' },
        { ...customer, id: '3', tenantName: '', tenantCode: '', status: 'ACTIVE' },
      ],
      page: 1, size: 200, total: 3, pages: 1,
    })
    mountSelector({ modelValue: '1' })
    await flushPromises()

    expect(document.body.textContent).toContain('未命名客户 · 启用')
    expect(document.body.textContent).toContain('远航供应链 · 启用')
    expect(document.body.textContent).not.toContain('CUS-001')
    expect(document.body.textContent).not.toMatch(/[（(][123] ·/)
  })

  it('uses a custom business label for both visible and accessible names', async () => {
    const wrapper = mountSelector({ modelValue: String(customer.id), label: '客户企业' })
    await flushPromises()

    expect(wrapper.text()).toContain('客户企业')
    expect(wrapper.get('[aria-label="客户企业"]').attributes('aria-label')).toBe('客户企业')
  })

  it('shows an actionable customer-list error and retries', async () => {
    vi.mocked(listPlatformTenants)
      .mockRejectedValueOnce('unavailable')
      .mockResolvedValueOnce({ records: [customer], page: 1, size: 200, total: 1, pages: 1 })
    const wrapper = mountSelector()
    await flushPromises()

    expect(wrapper.get('[role="alert"]').text()).toContain('客户列表加载失败，请重试')
    await wrapper.get('[role="alert"] button').trigger('click')
    await flushPromises()
    expect(listPlatformTenants).toHaveBeenCalledTimes(2)
  })
})