import 'package:meta/meta.dart';

/// 语音交互事件基类
abstract class VoiceInteractionEvent {
  final int timestamp;
  
  VoiceInteractionEvent({required this.timestamp});
}

/// 聊天历史事件
class ChatHistoryEvent extends VoiceInteractionEvent {
  final String agentId;
  final String userMessage;
  final String assistantMessage;
  
  ChatHistoryEvent({
    required this.agentId,
    required this.userMessage,
    required this.assistantMessage,
    required int timestamp,
  }) : super(timestamp: timestamp);
}

/// 语音识别开始事件
class RecognitionStartedEvent extends VoiceInteractionEvent {
  RecognitionStartedEvent({
    required int timestamp,
  }) : super(timestamp: timestamp);
}

/// 通用语音交互事件
/// 用于处理其他类型的事件
class GenericVoiceInteractionEvent extends VoiceInteractionEvent {
  final String type;
  final Map<String, dynamic>? data;
  
  GenericVoiceInteractionEvent({
    required this.type,
    this.data,
    required int timestamp,
  }) : super(timestamp: timestamp);
}