import { readFileSync } from 'node:fs'
import { join } from 'node:path'
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 { useAccessPreviewStore } from '@/core/access/accessPreview'
import { useAuthStore } from '@/core/auth/auth'
import { listPlatformFeeItems } from '@/modules/fee-items/api/platformFeeItems'
import FeeItemsView from './FeeItemsView.vue'

const source = readFileSync(join(process.cwd(), 'src/modules/fee-items/pages/FeeItemsView.vue'), 'utf8')

vi.mock('@/modules/fee-items/api/platformFeeItems', () => ({
  listPlatformFeeItems: vi.fn(),
  getPlatformFeeItem: vi.fn(),
  createPlatformFeeItem: vi.fn(),
  updatePlatformFeeItem: vi.fn(),
  changePlatformFeeItemStatus: vi.fn(),
  deletePlatformFeeItem: 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),
  }
}

async function mountView(permissions: string[]) {
  const pinia = createPinia()
  setActivePinia(pinia)
  const auth = useAuthStore()
  auth.token = 'token'
  auth.permissions = permissions
  useAccessPreviewStore().initializeAfterLogin()
  const wrapper = mount(FeeItemsView, { attachTo: document.body, global: { plugins: [pinia, ElementPlus] } })
  await flushPromises()
  return wrapper
}

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

describe('FeeItemsView public master data and access', () => {
  beforeEach(() => {
    vi.stubGlobal('ResizeObserver', ResizeObserverStub)
    vi.stubGlobal('localStorage', createMemoryStorage())
    vi.stubGlobal('sessionStorage', createMemoryStorage())
    document.body.innerHTML = ''
    vi.mocked(listPlatformFeeItems).mockReset().mockResolvedValue({ records: [], page: 1, size: 20, total: 0, pages: 0 })
  })

  it('loads public fee items immediately without customer selection', async () => {
    const wrapper = await mountView(['firstleg:fee-item:view', 'firstleg:fee-item:create'])

    expect(wrapper.find('.query-toolbar').exists()).toBe(true)
    expect(wrapper.find('.data-table').exists()).toBe(true)
    expect(wrapper.find('.query-toolbar__actions').text()).not.toContain('新增费用项目')
    expect(wrapper.find('.data-table__business-actions').text()).toContain('新增费用项目')
    expect(wrapper.find('.data-table__toolbar-start').exists()).toBe(false)
    expect(wrapper.find('.data-table__pagination-left').text()).toContain('平台公共主数据 · 共 0 项')
    expect(wrapper.find('.list-page-layout__state').exists()).toBe(false)
    expect(wrapper.text()).toContain('平台公共主数据')
    expect(listPlatformFeeItems).toHaveBeenCalledWith(expect.objectContaining({ page: 1, size: 20 }))

    const vm = wrapper.vm as unknown as { applyFilters(model: Record<string, string>): void }
    vm.applyFilters({ keyword: '', category: '', tradeScope: '', status: '' })
    await flushPromises()

    expect(listPlatformFeeItems).toHaveBeenCalledWith(expect.objectContaining({ page: 1, size: 20 }))
  })

  it('renders the load error instead of an empty table panel', async () => {
    vi.mocked(listPlatformFeeItems).mockRejectedValueOnce(new Error('Gateway unavailable'))
    const wrapper = await mountView(['firstleg:fee-item:view'])

    expect(wrapper.find('.list-page-layout__state').exists()).toBe(true)
    expect(wrapper.find('.table-panel').exists()).toBe(false)
    expect(wrapper.text()).toContain('费用项目加载失败')
    expect(wrapper.text()).toContain('Gateway unavailable')
  })

  it('renders an explicit no-access state without loading customers or fee items', async () => {
    const wrapper = await mountView([])

    expect(wrapper.text()).toContain('无权查看费用项目')
    expect(listPlatformFeeItems).not.toHaveBeenCalled()
  })

  it('keeps all three row actions visible without a premature more menu', () => {
    expect(source).toContain('<Pencil :size="15" />编辑')
    expect(source).toContain('<Power :size="15" />')
    expect(source).toContain('<Trash2 :size="15" />删除')
    expect(source).not.toContain('MoreHorizontal')
  })
})