import test from 'node:test'
import assert from 'node:assert/strict'
import { readSource } from './helpers.ts'
import { isRouteAllowed } from '../src/router/helpers.ts'

test('test_task_033_route_permission_guard_normal_primary_path', () => {
  // 正常主路径：页面带 menuKey 且普通用户拥有该菜单 key 时放行。
  const tree = [{ key: 'admin_users', name: '用户管理', route: '/account/users' }]
  assert.equal(isRouteAllowed(false, 'admin_users', tree), true)
})

test('test_task_033_route_permission_guard_normal_variant_input', () => {
  // 正常变体：超级管理员即便不带该 key 也放行；无 menuKey 页面不受限。
  assert.equal(isRouteAllowed(true, 'whatever', []), true)
  assert.equal(isRouteAllowed(false, undefined, []), true)
})

test('test_task_033_route_permission_guard_normal_repeated_operation_is_idempotent', () => {
  // 正常重复：判定纯函数，输入不变结果稳定。
  const tree = [{ key: 'g', name: '组', children: [{ key: 'users', name: '用户', route: '/users' }] }]
  assert.equal(isRouteAllowed(false, 'users', tree), isRouteAllowed(false, 'users', tree))
})

test('test_task_033_route_permission_guard_boundary_empty_input', () => {
  // 边界空值：空菜单树对普通用户视为无权限（除无 menuKey 页面外）。
  assert.equal(isRouteAllowed(false, 'admin_users', []), false)
  assert.equal(isRouteAllowed(false, undefined, []), true)
})

test('test_task_033_route_permission_guard_boundary_single_item', () => {
  // 边界单元素：只有单个可路由页面时的命中与未命中。
  const tree = [{ key: 'solo', name: '单页', route: '/solo' }]
  assert.equal(isRouteAllowed(false, 'solo', tree), true)
  assert.equal(isRouteAllowed(false, 'other', tree), false)
})

test('test_task_033_route_permission_guard_boundary_limit_or_missing_field', () => {
  // 边界上限/缺字段：深层叶子菜单 key 也能命中。
  const tree = [{ key: 'g', name: '组', children: [{ key: 'inner', name: '内', route: '/inner' }] }]
  assert.equal(isRouteAllowed(false, 'inner', tree), true)
})

test('test_task_033_route_permission_guard_invalid_input_rejected', () => {
  // 异常输入：null/空 key 视为无菜单门槛页面一律放行（不误拦开放页）。
  assert.equal(isRouteAllowed(false, null as unknown as string, []), true)
  assert.equal(isRouteAllowed(false, '', []), true)
  assert.equal(isRouteAllowed(false, 'x', []), false)
})

test('test_task_033_route_permission_guard_dependency_failure_returns_actionable_message', () => {
  // 依赖失败：守卫把越权路由回退给首个可见页/根路由，复用统一判定。
  const router = readSource('src/router/index.ts')
  assert.match(router, /isRouteAllowed/, '路由守卫使用共享权限判定')
  assert.match(router, /firstVisible/, '越权回退首个可见页')
  const helpers = readSource('src/router/helpers.ts')
  assert.match(helpers, /export function isRouteAllowed/)
  assert.match(helpers, /hasMenuKey/)
})