enterprise-deep-research/stream_test_2.html at main · SalesforceAIResearch/enterprise-deep-research · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>FastAPI Streaming Debug Client</title>
    <style>
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
            margin: 0;
            padding: 20px;
            max-width: 1200px;
            margin: 0 auto;
        }
        h1 { color: #333; margin-bottom: 20px; }
        .controls {
            margin-bottom: 20px;
            display: flex;
            gap: 10px;
            align-items: center;
        }
        button {
            padding: 10px 15px;
            background-color: #4CAF50;
            color: white;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-size: 16px;
        }
        button:hover { background-color: #45a049; }
        button:disabled { background-color: #cccccc; cursor: not-allowed; }
        input[type="text"] {
            padding: 10px;
            width: 300px;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-size: 16px;
        }
        .stream-indicator {
            font-weight: bold;
            margin-left: 15px;
        }
        .results {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .stats-panel, .event-log, .event-display {
            border: 1px solid #ddd;
            border-radius: 4px;
            padding: 15px;
        }
        .stats-panel {
            background-color: #f9f9f9;
        }
        .stat-row {
            display: flex;
            justify-content: space-between;
            margin-bottom: 5px;
        }
        .event-log {
            height: 200px;
            overflow-y: auto;
            font-family: monospace;
            background-color: #f5f5f5;
            white-space: pre-wrap;
        }
        .event-display {
            overflow-y: auto;
            max-height: 400px;
        }
        .event-item {
            padding: 10px;
            margin-bottom: 5px;
            border-radius: 4px;
            background-color: #f0f8ff;
            border-left: 4px solid #4285f4;
        }
        .event-timestamp {
            font-size: 12px;
            color: #666;
            margin-bottom: 5px;
        }
        .event-type {
            font-weight: bold;
            margin-bottom: 5px;
        }
        .event-data {
            margin-left: 15px;
            font-family: monospace;
        }
        .loading { color: orange; }
        .success { color: green; }
        .error { color: red; }
    </style>
</head>
<body>
    <h1>FastAPI Streaming Debug Client</h1>

    <div class="controls">
        <input type="text" id="query" value="What is FastAPI?" placeholder="Enter research query">
        <button id="startBtn">Start Research</button>
        <button id="clearBtn">Clear Results</button>
        <label><input type="checkbox" id="debugMode" checked> Debug Mode</label>
        <div class="stream-indicator" id="streamStatus">Ready</div>
    </div>

    <div class="results">
        <div class="stats-panel">
            <h3>Stream Statistics</h3>
            <div class="stat-row">
                <span>Connection Status:</span>
                <span id="connectionStatus">Not connected</span>
            </div>
            <div class="stat-row">
                <span>Events Received:</span>
                <span id="eventCount">0</span>
            </div>
            <div class="stat-row">
                <span>First Event Received:</span>
                <span id="firstEventTime">-</span>
            </div>
            <div class="stat-row">
                <span>Latest Event Received:</span>
                <span id="latestEventTime">-</span>
            </div>
            <div class="stat-row">
                <span>Elapsed Time:</span>
                <span id="elapsedTime">0s</span>
            </div>
        </div>

        <div class="event-log" id="eventLog">
            <!-- Debug log entries will be displayed here -->
        </div>

        <div class="event-display" id="eventDisplay">
            <!-- Events will be displayed here -->
        </div>
    </div>

    <script>
        // DOM Elements
        const startBtn = document.getElementById('startBtn');
        const clearBtn = document.getElementById('clearBtn');
        const queryInput = document.getElementById('query');
        const debugMode = document.getElementById('debugMode');
        const streamStatus = document.getElementById('streamStatus');
        const connectionStatus = document.getElementById('connectionStatus');
        const eventCount = document.getElementById('eventCount');
        const firstEventTime = document.getElementById('firstEventTime');
        const latestEventTime = document.getElementById('latestEventTime');
        const elapsedTime = document.getElementById('elapsedTime');
        const eventLog = document.getElementById('eventLog');
        const eventDisplay = document.getElementById('eventDisplay');

        // Stats
        let stats = {
            startTime: null,
            eventCount: 0,
            firstEventTime: null,
            latestEventTime: null,
            intervalId: null
        };

        // Logging function
        function logMessage(message, type = 'info') {
            if (debugMode.checked || type === 'error') {
                const timestamp = new Date().toISOString();
                const logEntry = `[${timestamp}] [${type.toUpperCase()}] ${message}`;
                eventLog.innerHTML += logEntry + '\n';
                eventLog.scrollTop = eventLog.scrollHeight;
            }
        }

        // Update statistics
        function updateStats() {
            if (stats.startTime) {
                const now = new Date();
                const elapsed = Math.floor((now - stats.startTime) / 1000);
                elapsedTime.textContent = `${elapsed}s`;
            }
        }

        // Start the streaming request
        startBtn.addEventListener('click', async () => {
            try {
                // Reset stats
                clearResults();

                // Disable button during request
                startBtn.disabled = true;
                streamStatus.textContent = 'Connecting...';
                streamStatus.className = 'stream-indicator loading';

                stats.startTime = new Date();
                stats.intervalId = setInterval(updateStats, 1000);

                const query = queryInput.value.trim() || 'What is FastAPI?';

                logMessage(`Starting research with query: "${query}"`);
                logMessage('Preparing fetch request with streaming enabled');

                // Make the request
                const response = await fetch('http://localhost:8003/deep-research', {
                    method: 'POST',
                    headers: {
                        'Content-Type': 'application/json',
                        'Accept': 'text/event-stream'
                    },
                    body: JSON.stringify({
                        query: query,
                        extra_effort: false,
                        streaming: true
                    })
                });

                if (!response.ok) {
                    throw new Error(`Server error: ${response.status} ${response.statusText}`);
                }

                logMessage(`Connection established: ${response.status} ${response.statusText}`);
                connectionStatus.textContent = 'Connected';
                streamStatus.textContent = 'Streaming...';
                streamStatus.className = 'stream-indicator success';

                // Create a raw stream reader
                const reader = response.body.getReader();
                let decoder = new TextDecoder();
                let buffer = '';

                logMessage('Starting to read from stream');

                while (true) {
                    const { done, value } = await reader.read();

                    if (done) {
                        logMessage('Stream closed by server');
                        break;
                    }

                    // Decode the chunk and add to buffer
                    const chunk = decoder.decode(value, { stream: true });
                    buffer += chunk;

                    logMessage(`Received chunk: ${chunk.length} bytes`);

                    // Process any complete SSE events (data: {...}\n\n)
                    let eventEndIndex;
                    while ((eventEndIndex = buffer.indexOf('\n\n')) !== -1) {
                        const eventData = buffer.substring(0, eventEndIndex);
                        buffer = buffer.substring(eventEndIndex + 2);

                        // Check if this is a valid SSE data line
                        if (eventData.startsWith('data: ')) {
                            const jsonStr = eventData.substring(6);
                            try {
                                const event = JSON.parse(jsonStr);
                                processEvent(event);
                            } catch (e) {
                                logMessage(`Failed to parse event JSON: ${jsonStr}`, 'error');
                                logMessage(`Error: ${e.message}`, 'error');
                            }
                        } else {
                            logMessage(`Received non-data event: ${eventData}`, 'error');
                        }
                    }
                }

                // End of stream
                connectionStatus.textContent = 'Closed';
                streamStatus.textContent = 'Completed';

            } catch (error) {
                logMessage(`Error: ${error.message}`, 'error');
                streamStatus.textContent = 'Error';
                streamStatus.className = 'stream-indicator error';
                connectionStatus.textContent = 'Error';
            } finally {
                startBtn.disabled = false;
            }
        });

        // Process a received event
        function processEvent(event) {
            stats.eventCount++;
            const now = new Date();

            if (!stats.firstEventTime) {
                stats.firstEventTime = now;
                firstEventTime.textContent = now.toISOString();
            }

            stats.latestEventTime = now;
            latestEventTime.textContent = now.toISOString();
            eventCount.textContent = stats.eventCount;

            logMessage(`Received event: ${event.event_type}`);

            // Create event display element
            const eventItem = document.createElement('div');
            eventItem.className = 'event-item';

            const timestamp = document.createElement('div');
            timestamp.className = 'event-timestamp';
            timestamp.textContent = event.timestamp || new Date().toISOString();

            const eventType = document.createElement('div');
            eventType.className = 'event-type';
            eventType.textContent = `Event: ${event.event_type}`;

            const eventData = document.createElement('div');
            eventData.className = 'event-data';

            if (event.data) {
                const prettyData = JSON.stringify(event.data, null, 2)
                    .replace(/\\n/g, '\n')
                    .replace(/\\"/g, '"');
                eventData.textContent = prettyData;
            } else {
                eventData.textContent = '(No data)';
            }

            eventItem.appendChild(timestamp);
            eventItem.appendChild(eventType);
            eventItem.appendChild(eventData);

            eventDisplay.appendChild(eventItem);
            // Scroll to bottom
            eventDisplay.scrollTop = eventDisplay.scrollHeight;
        }

        // Clear results
        clearBtn.addEventListener('click', clearResults);

        function clearResults() {
            // Clear display
            eventLog.innerHTML = '';
            eventDisplay.innerHTML = '';

            // Reset stats
            stats = {
                startTime: null,
                eventCount: 0,
                firstEventTime: null,
                latestEventTime: null
            };

            if (stats.intervalId) {
                clearInterval(stats.intervalId);
                stats.intervalId = null;
            }

            // Reset UI elements
            connectionStatus.textContent = 'Not connected';
            eventCount.textContent = '0';
            firstEventTime.textContent = '-';
            latestEventTime.textContent = '-';
            elapsedTime.textContent = '0s';
            streamStatus.textContent = 'Ready';
            streamStatus.className = 'stream-indicator';
        }

        // Log initial message
        logMessage('Debug client initialized and ready');
    </script>
</body>
</html>