frontend; backend: adiciona sistema novo de gravacao de provas

Signed-off-by: Rodrigo B. de Sousa Martins <rodrigo.sousa.577@gmail.com>
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rodrigo committed 2025-07-27 18:21:14 -03:00
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import React, { useState, useRef, useCallback, useEffect } from 'react';
import { useNavigate } from 'react-router-dom';
import { toast } from 'react-toastify';
interface SessionRecordingProps {
onSessionStart?: (sessionId: string) => void;
onSessionEnd?: (sessionId: string, reportPath: string) => void;
}
export const SessionRecording: React.FC<SessionRecordingProps> = ({
onSessionStart,
onSessionEnd
}) => {
const [isRecording, setIsRecording] = useState(false);
const [sessionId, setSessionId] = useState<string | null>(null);
const [recordingTime, setRecordingTime] = useState(0);
const [screenshots, setScreenshots] = useState<string[]>([]);
const [isProcessing, setIsProcessing] = useState(false);
const mediaRecorderRef = useRef<MediaRecorder | null>(null);
const streamRef = useRef<MediaStream | null>(null);
const recordedChunksRef = useRef<Blob[]>([]);
const timerRef = useRef<NodeJS.Timeout | null>(null);
const navigate = useNavigate();
useEffect(() => {
return () => {
if (timerRef.current) {
clearInterval(timerRef.current);
}
if (streamRef.current) {
streamRef.current.getTracks().forEach(track => track.stop());
}
};
}, []);
const startRecording = useCallback(async () => {
try {
// Coletar informações de contexto
const metadata = await collectContextMetadata();
// Criar sessão no backend
const response = await fetch('/api/sessions/create', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify(metadata)
});
if (!response.ok) {
throw new Error('Erro ao criar sessão');
}
const { sessionId: newSessionId } = await response.json();
setSessionId(newSessionId);
// Solicitar captura de tela
const stream = await navigator.mediaDevices.getDisplayMedia({
video: { mediaSource: 'screen' },
audio: true
});
streamRef.current = stream;
// Configurar MediaRecorder
const mediaRecorder = new MediaRecorder(stream, {
mimeType: 'video/webm;codecs=vp9'
});
mediaRecorderRef.current = mediaRecorder;
recordedChunksRef.current = [];
mediaRecorder.ondataavailable = (event) => {
if (event.data.size > 0) {
recordedChunksRef.current.push(event.data);
}
};
mediaRecorder.onstop = () => {
handleRecordingStop(newSessionId);
};
// Iniciar gravação
mediaRecorder.start(1000); // Gravar em chunks de 1 segundo
setIsRecording(true);
setRecordingTime(0);
// Iniciar timer
timerRef.current = setInterval(() => {
setRecordingTime(prev => prev + 1);
}, 1000);
// Overlay de informações na tela
createScreenOverlay(metadata);
onSessionStart?.(newSessionId);
toast.success('Gravação de sessão iniciada!');
} catch (error) {
console.error('Erro ao iniciar gravação:', error);
toast.error('Erro ao iniciar gravação: ' + error.message);
}
}, [onSessionStart]);
const stopRecording = useCallback(() => {
if (mediaRecorderRef.current && isRecording) {
mediaRecorderRef.current.stop();
setIsRecording(false);
if (timerRef.current) {
clearInterval(timerRef.current);
timerRef.current = null;
}
if (streamRef.current) {
streamRef.current.getTracks().forEach(track => track.stop());
}
removeScreenOverlay();
}
}, [isRecording]);
const takeScreenshot = useCallback(async () => {
if (!sessionId || !streamRef.current) {
toast.error('Sessão não ativa');
return;
}
try {
// Capturar screenshot usando Canvas
const canvas = document.createElement('canvas');
const video = document.createElement('video');
video.srcObject = streamRef.current;
video.play();
video.onloadedmetadata = async () => {
canvas.width = video.videoWidth;
canvas.height = video.videoHeight;
const ctx = canvas.getContext('2d');
ctx?.drawImage(video, 0, 0);
// Converter para base64
const screenshotData = canvas.toDataURL('image/png');
// Enviar para o backend
const response = await fetch(`/api/sessions/${sessionId}/screenshot`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ screenshot: screenshotData })
});
if (response.ok) {
const { filename } = await response.json();
setScreenshots(prev => [...prev, filename]);
toast.success('Screenshot capturado!');
}
};
} catch (error) {
console.error('Erro ao capturar screenshot:', error);
toast.error('Erro ao capturar screenshot');
}
}, [sessionId]);
const handleRecordingStop = async (sessionId: string) => {
try {
setIsProcessing(true);
// Combinar chunks do vídeo
const blob = new Blob(recordedChunksRef.current, { type: 'video/webm' });
// Enviar vídeo para o backend
const formData = new FormData();
formData.append('video', blob, `session_${sessionId}.webm`);
const uploadResponse = await fetch(`/api/sessions/${sessionId}/video`, {
method: 'POST',
body: formData
});
if (!uploadResponse.ok) {
throw new Error('Erro ao enviar vídeo');
}
// Finalizar sessão e gerar relatório
const finalizeResponse = await fetch(`/api/sessions/${sessionId}/finalize`, {
method: 'POST'
});
if (!finalizeResponse.ok) {
throw new Error('Erro ao finalizar sessão');
}
const { reportPath } = await finalizeResponse.json();
onSessionEnd?.(sessionId, reportPath);
toast.success('Sessão finalizada e relatório gerado!');
// Navegar para página de resultados
navigate(`/sessions/report/${sessionId}`);
} catch (error) {
console.error('Erro ao processar gravação:', error);
toast.error('Erro ao processar gravação: ' + error.message);
} finally {
setIsProcessing(false);
}
};
const formatTime = (seconds: number): string => {
const hours = Math.floor(seconds / 3600);
const minutes = Math.floor((seconds % 3600) / 60);
const secs = seconds % 60;
return `${hours.toString().padStart(2, '0')}:${minutes.toString().padStart(2, '0')}:${secs.toString().padStart(2, '0')}`;
};
return (
<div className="max-w-4xl mx-auto p-6">
<div className="bg-white rounded-lg shadow-lg p-6">
<h2 className="text-2xl font-bold text-gray-900 mb-6">
Gravação de Sessão de Coleta de Prova
</h2>
<div className="space-y-6">
{/* Status da gravação */}
<div className="flex items-center justify-between p-4 bg-gray-50 rounded-lg">
<div className="flex items-center space-x-3">
<div className={`w-3 h-3 rounded-full ${isRecording ? 'bg-red-500 animate-pulse' : 'bg-gray-300'}`} />
<span className="font-medium">
{isRecording ? 'Gravando' : isProcessing ? 'Processando...' : 'Pronto para gravar'}
</span>
{isRecording && (
<span className="font-mono text-lg text-red-600">
{formatTime(recordingTime)}
</span>
)}
</div>
{sessionId && (
<span className="text-sm text-gray-500">
Sessão: {sessionId}
</span>
)}
</div>
{/* Controles */}
<div className="flex justify-center space-x-4">
{!isRecording && !isProcessing && (
<button
onClick={startRecording}
className="px-6 py-3 bg-red-600 text-white rounded-lg hover:bg-red-700 font-medium"
>
Iniciar Gravação
</button>
)}
{isRecording && (
<>
<button
onClick={takeScreenshot}
className="px-6 py-3 bg-blue-600 text-white rounded-lg hover:bg-blue-700 font-medium"
>
Capturar Tela
</button>
<button
onClick={stopRecording}
className="px-6 py-3 bg-gray-600 text-white rounded-lg hover:bg-gray-700 font-medium"
>
Parar Gravação
</button>
</>
)}
</div>
{/* Informações da sessão */}
{(isRecording || screenshots.length > 0) && (
<div className="border-t pt-4">
<h3 className="font-medium text-gray-900 mb-2">Informações da Sessão</h3>
<div className="grid grid-cols-2 gap-4 text-sm">
<div>
<span className="text-gray-500">Screenshots capturados:</span>
<span className="ml-2 font-medium">{screenshots.length}</span>
</div>
<div>
<span className="text-gray-500">Tempo de gravação:</span>
<span className="ml-2 font-medium">{formatTime(recordingTime)}</span>
</div>
</div>
</div>
)}
{/* Lista de screenshots */}
{screenshots.length > 0 && (
<div className="border-t pt-4">
<h3 className="font-medium text-gray-900 mb-2">Screenshots Capturados</h3>
<div className="space-y-1">
{screenshots.map((screenshot, index) => (
<div key={index} className="text-sm text-gray-600">
{index + 1}. {screenshot}
</div>
))}
</div>
</div>
)}
{isProcessing && (
<div className="text-center py-8">
<div className="animate-spin rounded-full h-12 w-12 border-b-2 border-blue-600 mx-auto mb-4" />
<p className="text-gray-600">Processando gravação e gerando relatório...</p>
</div>
)}
</div>
</div>
</div>
);
};
// Função para coletar metadados de contexto
async function collectContextMetadata() {
const getLocation = (): Promise<GeolocationPosition | null> => {
return new Promise((resolve) => {
if (!navigator.geolocation) {
resolve(null);
return;
}
navigator.geolocation.getCurrentPosition(
(position) => resolve(position),
() => resolve(null),
{ timeout: 5000 }
);
});
};
const location = await getLocation();
return {
userAgent: navigator.userAgent,
language: navigator.language,
platform: navigator.platform,
cookieEnabled: navigator.cookieEnabled,
onlineStatus: navigator.onLine,
screenResolution: `${screen.width}x${screen.height}`,
viewportSize: `${window.innerWidth}x${window.innerHeight}`,
timezone: Intl.DateTimeFormat().resolvedOptions().timeZone,
geolocation: location ? {
latitude: location.coords.latitude,
longitude: location.coords.longitude,
accuracy: location.coords.accuracy
} : null,
timestamp: new Date().toISOString(),
url: window.location.href,
referrer: document.referrer
};
}
// Função para criar overlay na tela
function createScreenOverlay(metadata: any) {
const overlay = document.createElement('div');
overlay.id = 'recording-overlay';
overlay.style.cssText = `
position: fixed;
top: 10px;
right: 10px;
background: rgba(0, 0, 0, 0.8);
color: white;
padding: 10px;
border-radius: 5px;
font-family: monospace;
font-size: 12px;
z-index: 10000;
max-width: 300px;
`;
overlay.innerHTML = `
<div>🔴 GRAVAÇÃO ATIVA</div>
<div>IP: ${metadata.ipAddress || 'Coletando...'}</div>
<div>Timestamp: ${new Date().toLocaleString()}</div>
<div>User-Agent: ${metadata.userAgent.substring(0, 50)}...</div>
`;
document.body.appendChild(overlay);
}
// Função para remover overlay
function removeScreenOverlay() {
const overlay = document.getElementById('recording-overlay');
if (overlay) {
overlay.remove();
}
}
export default SessionRecording;