import 'dart:io';

import 'package:eaimar/routes/app_pages.dart';
import 'package:flutter_test/flutter_test.dart';

/// 路由表卫生：每条 Routes 常量都要在 AppPages 里注册，且至少有一处跳转；
/// 每个 GetPage 的 name 唯一。死路由曾经堆到 20 个，这里守住不再长回来。
void main() {
  TestWidgetsFlutterBinding.ensureInitialized();

  final routesSrc = File('lib/routes/app_routes.dart').readAsStringSync();
  final constRe = RegExp(r"static const (\w+) = '([^']+)';");
  final declared = {
    for (final m in constRe.allMatches(routesSrc)) m.group(1)!: m.group(2)!
  };

  test('每条路由常量都在 AppPages 注册（initial 与 home 共用同一路径）', () {
    final registered = AppPages.pages.map((p) => p.name).toSet();
    final missing = declared.entries
        .where((e) => !registered.contains(e.value))
        .map((e) => e.key)
        .toList();
    expect(missing, isEmpty, reason: '声明了但没注册: $missing');
  });

  test('GetPage name 唯一（home/initial 例外，两个常量同一路径）', () {
    final names = AppPages.pages.map((p) => p.name).toList();
    final dup = <String>{};
    final seen = <String>{};
    for (final n in names) {
      if (!seen.add(n)) dup.add(n);
    }
    dup.remove('/home');
    expect(dup, isEmpty, reason: '重复注册: $dup');
  });

  test('每条路由常量至少有一处跳转方（routes/ 目录之外）', () {
    final files = Directory('lib')
        .listSync(recursive: true)
        .whereType<File>()
        .where((f) => f.path.endsWith('.dart') && !f.path.contains('lib/routes/'))
        .map((f) => f.readAsStringSync())
        .join('\n');
    final unused = declared.keys
        .where((k) => !RegExp('Routes\\.$k\\b').hasMatch(files))
        .where((k) => k != 'initial') // GetMaterialApp 的 initialRoute 在 main.dart 直接用
        .toList();
    expect(unused, isEmpty, reason: '没人跳转的死路由: $unused');
  });
}