import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:yx_asr/yx_asr.dart';

/// 测试辅助工具类
class TestHelper {
  /// 创建测试用的 MaterialApp 包装器
  static Widget createTestApp(Widget child) {
    return MaterialApp(
      home: Scaffold(
        body: child,
      ),
    );
  }

  /// 等待异步操作完成
  static Future<void> waitForAsync(WidgetTester tester,
      {int milliseconds = 100}) async {
    await tester.pump(Duration(milliseconds: milliseconds));
    await tester.pumpAndSettle();
  }

  /// 验证组件是否存在
  static void expectWidgetExists(Type widgetType) {
    expect(find.byType(widgetType), findsOneWidget);
  }

  /// 验证文本是否存在
  static void expectTextExists(String text) {
    expect(find.text(text), findsOneWidget);
  }

  /// 验证图标是否存在
  static void expectIconExists(IconData icon) {
    expect(find.byIcon(icon), findsOneWidget);
  }

  /// 创建测试用的语音识别结果
  static SpeechRecognitionResult createTestResult({
    String text = '测试结果',
    double confidence = 0.95,
    List<String> alternatives = const [],
  }) {
    return SpeechRecognitionResult(
      recognizedWords: text,
    );
  }

  /// 创建测试用的语音识别错误
  static SpeechRecognitionError createTestError({
    SpeechRecognitionErrorType type = SpeechRecognitionErrorType.service,
    String message = '测试错误',
    String? code,
  }) {
    return SpeechRecognitionError(
      errorType: type,
      errorMsg: message,
      errorCode: code,
    );
  }

  /// 创建测试用的语音识别配置
  static SpeechRecognitionConfig createTestConfig({
    String? modelPath,
    String? localeId,
    int sampleRate = 16000,
    bool onDevice = false,
    Map<String, dynamic> customConfig = const {},
  }) {
    return SpeechRecognitionConfig(
      modelPath: modelPath,
      localeId: localeId,
      sampleRate: sampleRate,
      onDevice: onDevice,
      customConfig: customConfig,
    );
  }

  /// 模拟点击事件
  static Future<void> tapWidget(WidgetTester tester, Type widgetType) async {
    await tester.tap(find.byType(widgetType));
    await tester.pump();
  }

  /// 模拟长按事件
  static Future<void> longPressWidget(
      WidgetTester tester, Type widgetType) async {
    await tester.longPress(find.byType(widgetType));
    await tester.pump();
  }

  /// 验证回调是否被调用
  static void verifyCallbackCalled(bool called, String callbackName) {
    expect(called, true, reason: '$callbackName 回调应该被调用');
  }

  /// 验证回调没有被调用
  static void verifyCallbackNotCalled(bool called, String callbackName) {
    expect(called, false, reason: '$callbackName 回调不应该被调用');
  }

  /// 创建性能测试的计时器
  static Stopwatch createStopwatch() {
    return Stopwatch()..start();
  }

  /// 验证性能指标
  static void verifyPerformance(
    Stopwatch stopwatch,
    int maxMilliseconds,
    String operationName,
  ) {
    stopwatch.stop();
    expect(
      stopwatch.elapsedMilliseconds,
      lessThan(maxMilliseconds),
      reason:
          '$operationName 应该在 ${maxMilliseconds}ms 内完成，实际用时: ${stopwatch.elapsedMilliseconds}ms',
    );
  }

  /// 打印性能信息
  static void printPerformanceInfo(
    Stopwatch stopwatch,
    String operationName, {
    int? iterations,
  }) {
    stopwatch.stop();
    if (iterations != null) {
      final averageTime = stopwatch.elapsedMilliseconds / iterations;
      print(
          '$operationName 平均用时: ${averageTime.toStringAsFixed(2)}ms (总计: ${stopwatch.elapsedMilliseconds}ms, 迭代: $iterations 次)');
    } else {
      print('$operationName 用时: ${stopwatch.elapsedMilliseconds}ms');
    }
  }

  /// 验证流是否正常工作
  static Future<void> verifyStreamWorks<T>(
    Stream<T> stream,
    T testValue,
    void Function(T) emitValue,
  ) async {
    bool received = false;
    T? receivedValue;

    final subscription = stream.listen((value) {
      received = true;
      receivedValue = value;
    });

    emitValue(testValue);
    await Future.delayed(const Duration(milliseconds: 10));

    expect(received, true, reason: '流应该接收到值');
    expect(receivedValue, equals(testValue), reason: '接收到的值应该匹配发送的值');

    await subscription.cancel();
  }

  /// 创建测试用的颜色
  static const Color testIdleColor = Colors.blue;
  static const Color testRecordingColor = Colors.red;
  static const Color testDisabledColor = Colors.grey;

  /// 测试用的常量
  static const String testModelPath = 'test/models';
  static const String testLocaleId = 'zh-CN';
  static const double testButtonSize = 100.0;
  static const String testTooltip = '测试提示';
}

/// 测试用的扩展方法
extension WidgetTesterExtensions on WidgetTester {
  /// 等待并结算所有动画
  Future<void> pumpAndSettleWithTimeout(
      [Duration timeout = const Duration(seconds: 10)]) async {
    await pumpAndSettle(timeout);
  }

  /// 查找并点击指定类型的组件
  Future<void> tapByType(Type widgetType) async {
    await tap(find.byType(widgetType));
    await pump();
  }

  /// 查找并长按指定类型的组件
  Future<void> longPressByType(Type widgetType) async {
    await longPress(find.byType(widgetType));
    await pump();
  }

  /// 验证组件存在
  void expectWidgetExists(Type widgetType) {
    expect(find.byType(widgetType), findsOneWidget);
  }

  /// 验证组件不存在
  void expectWidgetNotExists(Type widgetType) {
    expect(find.byType(widgetType), findsNothing);
  }

  /// 验证文本存在
  void expectTextExists(String text) {
    expect(find.text(text), findsOneWidget);
  }

  /// 验证图标存在
  void expectIconExists(IconData icon) {
    expect(find.byIcon(icon), findsOneWidget);
  }
}