import test from 'node:test'
import assert from 'node:assert/strict'
import { readSource } from './helpers.ts'
import { parseUserPage, toAdminUserItem } from '../src/api/users-model.ts'
import { USER_PAGE_DEFAULT_SIZE } from '../src/api/users-dto.ts'

test('test_task_042_user_list_adapter_normal_primary_path', () => {
  // 正常主路径：Java snake_case data.items 信封解出 camelCase 分页结果。
  const page = parseUserPage({
    success: true,
    data: {
      items: [{ id: 1, username: 'admin', role: 'super_admin', is_admin: true, created_by_id: 3, creator_username: 'root', created_at: '2026-01-01T00:00:00', pinyin_abbr: 'adm' }],
      total: 1,
      page: 1,
      page_size: 15,
    },
  })
  assert.equal(page.items.length, 1)
  assert.equal(page.items[0].username, 'admin')
  assert.equal(page.items[0].isAdmin, true)
  assert.equal(page.items[0].createdById, 3)
  assert.equal(page.items[0].creatorUsername, 'root')
  assert.equal(page.items[0].pinyinAbbr, 'adm')
  assert.equal(page.total, 1)
  assert.equal(page.pageSize, 15)
})

test('test_task_042_user_list_adapter_normal_variant_input', () => {
  // 正常变体：已解包的 AdminUserListVo 直传同样可归一。
  const page = parseUserPage({
    items: [{ id: 2, username: '张伟恒', role: 'admin', is_admin: true, created_by_id: null }],
    total: 5,
    page: 2,
    page_size: 20,
  })
  assert.equal(page.items[0].username, '张伟恒')
  assert.equal(page.items[0].createdById, undefined)
  assert.equal(page.page, 2)
  assert.equal(page.pageSize, 20)
})

test('test_task_042_user_list_adapter_normal_repeated_operation_is_idempotent', () => {
  // 正常重复：解析不修改输入、结果稳定。
  const payload = { data: { items: [{ id: 3, username: 'u', role: 'normal' }], total: 1, page: 1, page_size: 15 } }
  assert.deepEqual(parseUserPage(payload), parseUserPage(payload))
})

test('test_task_042_user_list_adapter_boundary_empty_input', () => {
  // 边界空值：无 items/空负载回默认空结果，不崩溃。
  const page = parseUserPage({})
  assert.deepEqual(page.items, [])
  assert.equal(page.total, 0)
  assert.equal(page.pageSize, USER_PAGE_DEFAULT_SIZE)
})

test('test_task_042_user_list_adapter_boundary_single_item', () => {
  // 边界单元素：单条最小字段(缺 id 的行被过滤)。
  const page = parseUserPage({ data: { items: [{ id: 7, username: 'root', role: 'super_admin' }, { username: 'no-id' }], total: 2, page: 1, page_size: 15 } })
  assert.equal(page.items.length, 1)
  assert.equal(page.items[0].id, 7)
})

test('test_task_042_user_list_adapter_boundary_limit_or_missing_field', () => {
  // 边界上限/缺字段：缺 page_size 用默认；缺省字段为空串而非 undefined。
  const single = toAdminUserItem({ id: 9, username: '', role: '', is_admin: false })
  assert.equal(single?.username, '')
  assert.equal(single?.role, '')
  assert.equal(single?.isAdmin, false)
  const page = parseUserPage({ items: [], total: 0, page: 1 })
  assert.equal(page.pageSize, USER_PAGE_DEFAULT_SIZE)
})

test('test_task_042_user_list_adapter_invalid_input_rejected', () => {
  // 异常输入：success=false 被拒绝并带后端 message；缺 id 的行不入列表。
  assert.throws(() => parseUserPage({ success: false, message: '无权限查看用户' }), /无权限查看用户/)
  assert.equal(toAdminUserItem({ username: 'x' }), null)
  assert.equal(toAdminUserItem('garbage'), null)
})

test('test_task_042_user_list_adapter_dependency_failure_returns_actionable_message', () => {
  // 依赖失败：页面查询走 adapter(fetchUserList→parseUserPage)，不在模板内联解包。
  const page = readSource('src/pages/account/UsersPage.vue')
  assert.match(page, /fetchUserList/)
  assert.equal(/unwrap<|\/api\/admin\/users/.test(page), false, '页面不再内联 http.get + unwrap')
  const adapter = readSource('src/api/users.ts')
  assert.match(adapter, /\/api\/admin\/users/)
  assert.match(adapter, /parseUserPage/)
  assert.match(adapter, /normalizeUserPageParams/)
  const model = readSource('src/api/users-model.ts')
  assert.match(model, /export function parseUserPage/)
})