import test from 'node:test'
import assert from 'node:assert/strict'
import { readSource } from './helpers.ts'
import { parseMenuTree } from '../src/api/session-model.ts'

const GROUPED = {
  success: true,
  data: {
    items: [
      { key: 'admin_group_account', name: '账号与权限', children: [
        { key: 'admin_users', name: '用户管理', route: '/account/users' },
      ] },
    ],
  },
}

test('test_task_024_menu_tree_adapter_normal_primary_path', () => {
  // 正常主路径：data:{items} 树形信封解出分组与页面。
  const tree = parseMenuTree(GROUPED)
  assert.equal(tree.length, 1)
  assert.equal(tree[0].key, 'admin_group_account')
  assert.equal(tree[0].children?.[0].route, '/account/users')
})

test('test_task_024_menu_tree_adapter_normal_variant_input', () => {
  // 正常变体：数组直传与 {items} 信封均可解析。
  const direct = parseMenuTree([{ key: 'a', name: '甲' }])
  assert.equal(direct.length, 1)
  const envelope = parseMenuTree({ success: true, items: [{ key: 'b', name: '乙', route: '/b' }] })
  assert.equal(envelope[0].route, '/b')
})

test('test_task_024_menu_tree_adapter_normal_repeated_operation_is_idempotent', () => {
  // 正常重复：解析稳定、不改输入。
  assert.deepEqual(parseMenuTree(GROUPED), parseMenuTree(GROUPED))
  assert.deepEqual(GROUPED, {
    success: true,
    data: { items: [{ key: 'admin_group_account', name: '账号与权限', children: [{ key: 'admin_users', name: '用户管理', route: '/account/users' }] }] },
  })
})

test('test_task_024_menu_tree_adapter_boundary_empty_input', () => {
  // 边界空值：空 items/空数组/缺省按空树处理，不抛错（与接口失败区分）。
  assert.deepEqual(parseMenuTree({ success: true, data: { items: [] } }), [])
  assert.deepEqual(parseMenuTree({ success: true, items: [] }), [])
  assert.deepEqual(parseMenuTree({ success: true, data: {} }), [])
  assert.deepEqual(parseMenuTree([]), [])
})

test('test_task_024_menu_tree_adapter_boundary_single_item', () => {
  // 边界单元素：单个分组节点返回。
  const tree = parseMenuTree({ data: { items: [{ key: 'g', name: '分组' }] } })
  assert.equal(tree.length, 1)
  assert.equal(tree[0].name, '分组')
})

test('test_task_024_menu_tree_adapter_boundary_limit_or_missing_field', () => {
  // 边界上限/缺字段：页面缺 route 不崩溃；group 无 route 合法。
  const tree = parseMenuTree({ items: [{ key: 'g', name: '组', children: [{ key: 'p', name: '页' }] }] })
  assert.equal(tree[0].children?.[0].route, undefined)
})

test('test_task_024_menu_tree_adapter_invalid_input_rejected', () => {
  // 异常输入：success=false 视为接口失败并抛错（区别于空权限）。
  assert.throws(() => parseMenuTree({ success: false, message: '未登录', code: 401 }), /未登录/)
  assert.deepEqual(parseMenuTree(null as unknown as { items?: [] }), [])
})

test('test_task_024_menu_tree_adapter_dependency_failure_returns_actionable_message', () => {
  // 依赖失败：会话适配调用菜单解析器；后端按 sort 顺序原样返回（前端不重排）。
  const session = readSource('src/api/session.ts')
  assert.match(session, /parseMenuTree/)
  const model = readSource('src/api/session-model.ts')
  assert.match(model, /parseMenuTree/)
})