/**
 * 往来单位分类树的页面级纯函数（仍内联在 views/base/othercompany/index.vue）。
 *
 * 建树、位置派生、排序号重排、整树重建等通用逻辑已收敛到 @/utils/tree，
 * 其测试在 tests/unit/utils.spec.js；本文件只覆盖留在页面里的两个业务判定，
 * 它们内联在页面中，因此通过挂载页面组件访问 <script setup> 的内部绑定。
 */
import { describe, expect, it, beforeEach, vi } from 'vitest'
import { flushPromises } from '@vue/test-utils'
import Othercompany from '@/views/base/othercompany/index.vue'
import { mountPage } from '../helpers/app.js'

vi.mock('@/services/api', () => ({
  loadDataApi: vi.fn(() => Promise.resolve({ data: [], code: 0, success: true })),
  pageDataApi: vi.fn(() =>
    Promise.resolve({ data: { rows: [], total: 0 }, code: 0, success: true }),
  ),
  saveObjectApi: vi.fn(() => Promise.resolve({ code: 0, success: true })),
}))

function category(over = {}) {
  return {
    b_id: 'a',
    b_parent_id: null,
    b_depth: 0,
    b_path: '/a/',
    b_name: 'A',
    b_xh: 10,
    b_canuse: 1,
    ...over,
  }
}

/** 页面实例（分类树纯函数与状态都在它的 setup 里） */
let vm

beforeEach(async () => {
  const { wrapper } = await mountPage(Othercompany)
  await flushPromises()
  vm = wrapper.vm
})

describe('othercompany 分类树工具：排序号与子分类判定', () => {
  it('同级最大 b_xh 加 10，无同级时取 10', () => {
    const rows = [
      category({ b_id: 'a', b_xh: 10 }),
      category({ b_id: 'b', b_xh: 30 }),
      category({ b_id: 'a1', b_parent_id: 'a', b_xh: 90 }),
    ]

    expect(vm.nextSiblingXh(rows, null)).toBe(40)
    expect(vm.nextSiblingXh(rows, 'a')).toBe(100)
    expect(vm.nextSiblingXh(rows, 'not-exist')).toBe(10)
    expect(vm.nextSiblingXh([], null)).toBe(10)
  })

  it('hasChildCategory 只看直接子分类', () => {
    const rows = [
      category({ b_id: 'a' }),
      category({ b_id: 'a1', b_parent_id: 'a' }),
      category({ b_id: 'a1x', b_parent_id: 'a1' }),
    ]

    expect(vm.hasChildCategory(rows, 'a')).toBe(true)
    expect(vm.hasChildCategory(rows, 'a1')).toBe(true)
    expect(vm.hasChildCategory(rows, 'a1x')).toBe(false)
  })
})

describe('othercompany 分类树工具：虚拟根键', () => {
  it('与 FmsTree 的 rootKey 约定保持一致', () => {
    expect(vm.ALL_CATEGORY_KEY).toBe('__fms_tree_root__')
  })
})