// settings_autoconnect_test.dart — 自动连接开关:默认关 + 改状态并持久化(重启恢复)。
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:package_info_plus/package_info_plus.dart';
import 'package:pangolin_vpn/bridge/vpn_bridge_mock.dart';
import 'package:pangolin_vpn/bridge/vpn_bridge_provider.dart';
import 'package:pangolin_vpn/state/settings_provider.dart';
import 'package:shared_preferences/shared_preferences.dart';

void main() {
  TestWidgetsFlutterBinding.ensureInitialized();
  setUp(() {
    SharedPreferences.setMockInitialValues({});
    // 桌面(mac 测试机)构造时会跑 _applyAutostart → PackageInfo.fromPlatform;
    // mock 掉避免无插件挂起、_load 拖到 dispose 之后报「used after dispose」。
    PackageInfo.setMockInitialValues(
      appName: 'Pangolin', packageName: 'com.pangolin',
      version: '1.0.0', buildNumber: '1', buildSignature: '',
    );
  });

  ProviderContainer makeContainer() => ProviderContainer(overrides: [
        vpnBridgeProvider.overrideWithValue(VpnBridgeMock()),
      ]);

  // 轮询等 _load() 把持久化值读进 state(异步,首次 SharedPreferences 初始化可能偏慢)。
  Future<void> waitAutoConnect(ProviderContainer c, bool want) async {
    for (var i = 0; i < 60; i++) {
      if (c.read(settingsProvider).autoConnect == want) return;
      await Future<void>.delayed(const Duration(milliseconds: 10));
    }
  }

  test('autoConnect 默认关(const 默认 + 空存储加载)', () async {
    expect(const AppSettings().autoConnect, isFalse);
    final c = makeContainer();
    addTearDown(c.dispose);
    await waitAutoConnect(c, false);
    expect(c.read(settingsProvider).autoConnect, isFalse);
  });

  test('_load 从持久化恢复 autoConnect=true', () async {
    SharedPreferences.setMockInitialValues({'set_auto_connect': true});
    final c = makeContainer();
    addTearDown(c.dispose);
    await waitAutoConnect(c, true);
    expect(c.read(settingsProvider).autoConnect, isTrue, reason: '应读出持久化值');
  });

  test('setAutoConnect 写入持久化存储', () async {
    final c = makeContainer();
    addTearDown(c.dispose);
    await waitAutoConnect(c, false); // 等初次加载安定
    await c.read(settingsProvider.notifier).setAutoConnect(true);
    // 校验落盘(状态可能被并发的初次 _load 覆盖,但存储一定被写入)。
    final p = await SharedPreferences.getInstance();
    expect(p.getBool('set_auto_connect'), isTrue, reason: '应持久化');
  });
}