/**
 * 分 section 脏检查测试：守护 hasModuleChanges 的判定语义。
 * 背景见 docs/module-management-tab-status-plan.md 阶段一：
 * - 加载时自动补全的默认列表行只写 drafts 不写 originals（useModuleConfig.loadModuleConfig），
 *   此时视为「脏」是既有行为，分 section 对比必须原样保留，不得“修复”；
 * - hasModuleChanges 从整树 JSON.stringify 对比改为 dirtySections 派生，
 *   本 spec 以判定结果等价为验收基准。
 */
import { describe, it, expect, vi, beforeEach } from 'vitest'
import { ref } from 'vue'
import { useModuleConfig } from '@/views/system/module-management/composables/useModuleConfig'

vi.mock('@/services/api', () => ({
  loadDataApi: vi.fn(),
  describeApi: vi.fn(),
}))
vi.mock('@/components/ui', () => ({
  Message: { success: vi.fn(), error: vi.fn(), warning: vi.fn(), info: vi.fn() },
}))

beforeEach(() => {
  vi.clearAllMocks()
})

/** 完整的 8 段草稿结构（与 loadModuleConfig 构造的 original 同形） */
function baseConfig(over = {}) {
  const config = {
    module: { b_id: '1', b_code: 'demo', b_name: '演示模块', b_module_type: 'data' },
    fields: [{ b_id: '10', b_field: 'amount', b_name: '金额', b_canuse: 1 }],
    groups: [],
    listConfig: [],
    editConfig: [],
    queryConfig: [],
    autoCode: [],
    powers: [],
  }
  return Object.assign(config, over)
}

function setup({ drafts, originals }) {
  const draftsRef = ref(drafts)
  const originalsRef = ref(originals)
  const deps = {
    moduleSelectedId: ref('1'),
    moduleTreeData: ref([]),
    findModuleNode: () => null,
    selectedModule: ref({ b_id: '1', b_code: 'demo', b_name: '演示模块' }),
    busy: ref(false),
    configLoading: ref(false),
    configSyncing: ref(false),
    activeSection: ref('basic'),
    loadedModuleId: ref('1'),
    originals: originalsRef,
    drafts: draftsRef,
    skipModuleLoad: { value: false },
    showConfirm: vi.fn(),
    switchConfirm: ref(null),
    i18nPanelRef: ref(null),
  }
  return { ...useModuleConfig(deps), originalsRef, draftsRef }
}

describe('useModuleConfig 脏检查', () => {
  it('未修改时 hasModuleChanges 为 false', () => {
    const originals = baseConfig()
    const { hasModuleChanges } = setup({ drafts: JSON.parse(JSON.stringify(originals)), originals })
    expect(hasModuleChanges.value).toBe(false)
  })

  it('无草稿时 hasModuleChanges 为 false', () => {
    const { hasModuleChanges } = setup({ drafts: null, originals: null })
    expect(hasModuleChanges.value).toBe(false)
  })

  it('任一 section 修改即 hasModuleChanges 为 true', () => {
    const originals = baseConfig()
    for (const key of ['module', 'fields', 'groups', 'listConfig', 'editConfig', 'queryConfig', 'autoCode', 'powers']) {
      const drafts = JSON.parse(JSON.stringify(originals))
      if (key === 'module') drafts.module.b_name = '改名'
      else drafts[key] = [...drafts[key], { b_id: 'new' }]
      const { hasModuleChanges } = setup({ drafts, originals })
      expect(hasModuleChanges.value, `修改 ${key} 应判定为脏`).toBe(true)
    }
  })

  it('加载时补全的默认列表行（只写 drafts）视为脏——既有行为', () => {
    const originals = baseConfig()
    const drafts = JSON.parse(JSON.stringify(originals))
    drafts.listConfig = [{ b_id: 'tmp1', b_field_id: '10', b_visible: 1, b_xh: 10 }]
    const { hasModuleChanges } = setup({ drafts, originals })
    expect(hasModuleChanges.value).toBe(true)
  })

  it('查询模块缺失的 section（undefined）两侧一致时不脏，单侧出现即脏', () => {
    const originals = {
      module: { b_id: '2', b_code: 'q', b_module_type: 'query' },
      fields: [],
      groups: [],
      listConfig: [],
      editConfig: undefined,
      queryConfig: [],
      autoCode: undefined,
      powers: [],
    }
    const same = setup({ drafts: JSON.parse(JSON.stringify(originals)), originals })
    expect(same.hasModuleChanges.value).toBe(false)

    const drafts = JSON.parse(JSON.stringify(originals))
    drafts.editConfig = []
    const diff = setup({ drafts, originals })
    expect(diff.hasModuleChanges.value).toBe(true)
  })

  it('dirtySections 精确指出被修改的 section', () => {
    const originals = baseConfig()
    const drafts = JSON.parse(JSON.stringify(originals))
    drafts.module.b_name = '改名'
    drafts.queryConfig = [{ b_id: 'q1' }]
    const { dirtySections } = setup({ drafts, originals })
    expect(dirtySections.value.has('module')).toBe(true)
    expect(dirtySections.value.has('queryConfig')).toBe(true)
    expect(dirtySections.value.has('fields')).toBe(false)
    expect(dirtySections.value.size).toBe(2)
  })

  it('保存后整体替换 originals/drafts 为同一份深拷贝，脏状态清空', () => {
    const originals = baseConfig()
    const drafts = JSON.parse(JSON.stringify(originals))
    drafts.module.b_name = '改名'
    const api = setup({ drafts, originals })
    expect(api.hasModuleChanges.value).toBe(true)
    // 模拟 useModuleSave 保存后的整体 cloneData 换引用
    const saved = JSON.parse(JSON.stringify(drafts))
    api.originalsRef.value = saved
    api.draftsRef.value = JSON.parse(JSON.stringify(saved))
    expect(api.hasModuleChanges.value).toBe(false)
  })
})

describe('useModuleConfig 缺配统计（表单设计徽标）', () => {
  function configWith(fields, editConfig) {
    return { module: { b_id: '1', b_module_type: 'data' }, fields, groups: [], listConfig: [], editConfig, queryConfig: [], autoCode: [], powers: [] }
  }

  it('启用字段未被 editConfig 引用即计入缺配', () => {
    const fields = [
      { b_id: '10', b_field: 'a', b_canuse: 1 },
      { b_id: '11', b_field: 'b', b_canuse: 1 },
    ]
    const editConfig = [{ b_id: 'e1', b_field_id: '10' }]
    const { missingEditCount } = setup({ drafts: configWith(fields, editConfig), originals: configWith(fields, editConfig) })
    expect(missingEditCount.value).toBe(1)
  })

  it('停用字段不计入缺配', () => {
    const fields = [
      { b_id: '10', b_field: 'a', b_canuse: 1 },
      { b_id: '11', b_field: 'b', b_canuse: 0 },
    ]
    const { missingEditCount } = setup({ drafts: configWith(fields, []), originals: configWith(fields, []) })
    expect(missingEditCount.value).toBe(1)
  })

  it('b_field_id 与 b_id 类型不一致（数字/字符串）仍按字符串比较', () => {
    const fields = [{ b_id: 10, b_field: 'a', b_canuse: 1 }]
    const editConfig = [{ b_id: 'e1', b_field_id: '10' }]
    const { missingEditCount } = setup({ drafts: configWith(fields, editConfig), originals: configWith(fields, editConfig) })
    expect(missingEditCount.value).toBe(0)
  })

  it('无字段时缺配为 0（新建模块空态不显示徽标）', () => {
    const { missingEditCount } = setup({ drafts: configWith([], []), originals: configWith([], []) })
    expect(missingEditCount.value).toBe(0)
  })
})