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import React, { useState, useRef } from 'react';
import { Mic, Play, Square } from 'lucide-react';
import { useChat } from '../context/ChatContext';

const FrenchChat = () => {
  const { messages, addMessage } = useChat();
  const [isRecording, setIsRecording] = useState(false);
  const mediaRecorderRef = useRef<MediaRecorder | null>(null);
  const chunksRef = useRef<Blob[]>([]);
  const recognitionRef = useRef<SpeechRecognition | null>(null);

  const startRecording = async () => {
    try {
      // Initialize speech recognition
      const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
      const recognition = new SpeechRecognition();
      recognitionRef.current = recognition;
      
      recognition.lang = 'fr-FR';
      recognition.continuous = true;
      recognition.interimResults = true;

      recognition.onresult = (event) => {
        const transcript = Array.from(event.results)
          .map(result => result[0].transcript)
          .join('');

        if (event.results[0].isFinal) {
          const newMessage = {
            id: Date.now(),
            text: transcript,
            isFrench: true,
            timestamp: new Date(),
          };
          addMessage(newMessage);
        }
      };

      recognition.start();
      setIsRecording(true);

      // Also start audio recording for WAV file
      const stream = await navigator.mediaDevices.getUserMedia({ audio: true });
      const mediaRecorder = new MediaRecorder(stream);
      mediaRecorderRef.current = mediaRecorder;
      chunksRef.current = [];

      mediaRecorder.ondataavailable = (e) => {
        chunksRef.current.push(e.data);
      };

      mediaRecorder.start();
    } catch (err) {
      console.error('Error accessing microphone:', err);
    }
  };

  const stopRecording = () => {
    if (recognitionRef.current) {
      recognitionRef.current.stop();
    }
    
    if (mediaRecorderRef.current && isRecording) {
      mediaRecorderRef.current.stop();
      setIsRecording(false);
      mediaRecorderRef.current.stream.getTracks().forEach(track => track.stop());
    }
  };

  const speakText = (text: string, isFrench: boolean) => {
    if ('speechSynthesis' in window) {
      window.speechSynthesis.cancel();

      const utterance = new SpeechSynthesisUtterance(text);
      utterance.lang = isFrench ? 'fr-FR' : 'ar-SA';
      utterance.rate = 1.0;
      utterance.pitch = 1.0;
      utterance.volume = 1.0;

      window.speechSynthesis.speak(utterance);
    }
  };

  return (
    <div className="container mx-auto p-4 max-w-2xl">
      <div className="bg-white rounded-lg shadow-md h-[calc(100vh-12rem)] flex flex-col">
        <div className="flex-1 overflow-y-auto p-4">
          {messages.map((message) => (
            <div
              key={message.id}
              className={`flex ${message.isFrench ? 'justify-end' : 'justify-start'} mb-4`}
            >
              <div
                className={`rounded-lg p-3 max-w-[70%] ${
                  message.isFrench
                    ? 'bg-blue-500 text-white'
                    : 'bg-white border border-gray-300'
                }`}
              >
                <p>{message.text}</p>
                {!message.isFrench && (
                  <button
                    className="mt-2 p-2 bg-gray-100 rounded-full hover:bg-gray-200 transition-colors"
                    onClick={() => speakText(message.text, false)}
                    title="Écouter le message"
                  >
                    <Play className="h-4 w-4" />
                  </button>
                )}
              </div>
            </div>
          ))}
        </div>
        
        <div className="border-t p-4">
          <div className="flex items-center justify-center space-x-4">
            <button
              onClick={isRecording ? stopRecording : startRecording}
              className="relative p-4 rounded-full bg-blue-500 hover:bg-blue-600 text-white"
            >
              {isRecording ? (
                <Square className="h-6 w-6" />
              ) : (
                <Mic className="h-6 w-6" />
              )}
              {isRecording && (
                <div className="absolute inset-0 animate-ping rounded-full bg-blue-400 opacity-75"></div>
              )}
            </button>
            <p className="text-gray-600">Cliquer puis parler</p>
          </div>
        </div>
      </div>
    </div>
  );
};

export default FrenchChat;