Fal Smart Turn example

examples/fal-smart-turn/client/src/components/ConnectButton.tsx

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+import {
+  useRTVIClient,
+  useRTVIClientTransportState,
+} from '@pipecat-ai/client-react';
+
+export function ConnectButton() {
+  const client = useRTVIClient();
+  const transportState = useRTVIClientTransportState();
+  const isConnected = ['connected', 'ready'].includes(transportState);
+
+  const handleClick = async () => {
+    if (!client) {
+      console.error('RTVI client is not initialized');
+      return;
+    }
+
+    try {
+      if (isConnected) {
+        await client.disconnect();
+      } else {
+        await client.connect();
+      }
+    } catch (error) {
+      console.error('Connection error:', error);
+    }
+  };
+
+  return (
+    <div className="controls">
+      <button
+        className={isConnected ? 'disconnect-btn' : 'connect-btn'}
+        onClick={handleClick}
+        disabled={
+          !client || ['connecting', 'disconnecting'].includes(transportState)
+        }>
+        {isConnected ? 'Disconnect' : 'Connect'}
+      </button>
+    </div>
+  );
+}

examples/fal-smart-turn/client/src/components/DebugDisplay.css

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+.debug-panel {
+  background-color: #fff;
+  border-radius: 8px;
+  padding: 20px;
+}
+
+.debug-panel h3 {
+  margin: 0 0 10px 0;
+  font-size: 16px;
+  font-weight: bold;
+}
+
+.debug-log {
+  height: 200px;
+  overflow-y: auto;
+  background-color: #f8f8f8;
+  padding: 10px;
+  border-radius: 4px;
+  font-family: monospace;
+  font-size: 12px;
+  line-height: 1.4;
+}
+
+.debug-log div {
+  margin-bottom: 4px;
+}

examples/fal-smart-turn/client/src/components/DebugDisplay.tsx

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+import { useRef, useCallback } from 'react';
+import {
+  Participant,
+  RTVIEvent,
+  TransportState,
+  TranscriptData,
+  BotLLMTextData,
+} from '@pipecat-ai/client-js';
+import { useRTVIClient, useRTVIClientEvent } from '@pipecat-ai/client-react';
+import './DebugDisplay.css';
+
+interface SmartTurnResultData {
+  type: 'smart_turn_result';
+  is_complete: boolean;
+  probability: number;
+  inference_time_ms: number; // Pure model inference time
+  server_total_time_ms: number; // Server processing time
+  e2e_processing_time_ms: number; // Complete end-to-end time
+}
+
+export function DebugDisplay() {
+  const debugLogRef = useRef<HTMLDivElement>(null);
+  const client = useRTVIClient();
+
+  const log = useCallback((message: string) => {
+    if (!debugLogRef.current) return;
+
+    const entry = document.createElement('div');
+    entry.textContent = `${new Date().toISOString()} - ${message}`;
+
+    // Add styling based on message type
+    if (message.startsWith('User: ')) {
+      entry.style.color = '#2196F3'; // blue for user
+    } else if (message.startsWith('Bot: ')) {
+      entry.style.color = '#4CAF50'; // green for bot
+    } else if (message.includes('Smart Turn:')) {
+      entry.style.color = '#9C27B0'; // purple for smart turn
+    }
+
+    debugLogRef.current.appendChild(entry);
+    debugLogRef.current.scrollTop = debugLogRef.current.scrollHeight;
+  }, []);
+
+  // Log transport state changes
+  useRTVIClientEvent(
+    RTVIEvent.TransportStateChanged,
+    useCallback(
+      (state: TransportState) => {
+        log(`Transport state changed: ${state}`);
+      },
+      [log]
+    )
+  );
+
+  // Log bot connection events
+  useRTVIClientEvent(
+    RTVIEvent.BotConnected,
+    useCallback(
+      (participant?: Participant) => {
+        log(`Bot connected: ${JSON.stringify(participant)}`);
+      },
+      [log]
+    )
+  );
+
+  useRTVIClientEvent(
+    RTVIEvent.BotDisconnected,
+    useCallback(
+      (participant?: Participant) => {
+        log(`Bot disconnected: ${JSON.stringify(participant)}`);
+      },
+      [log]
+    )
+  );
+
+  // Log track events
+  useRTVIClientEvent(
+    RTVIEvent.TrackStarted,
+    useCallback(
+      (track: MediaStreamTrack, participant?: Participant) => {
+        log(
+          `Track started: ${track.kind} from ${participant?.name || 'unknown'}`
+        );
+      },
+      [log]
+    )
+  );
+
+  useRTVIClientEvent(
+    RTVIEvent.TrackStopped,
+    useCallback(
+      (track: MediaStreamTrack, participant?: Participant) => {
+        log(
+          `Track stopped: ${track.kind} from ${participant?.name || 'unknown'}`
+        );
+      },
+      [log]
+    )
+  );
+
+  // Log bot ready state and check tracks
+  useRTVIClientEvent(
+    RTVIEvent.BotReady,
+    useCallback(() => {
+      log(`Bot ready`);
+
+      if (!client) return;
+
+      const tracks = client.tracks();
+      log(
+        `Available tracks: ${JSON.stringify({
+          local: {
+            audio: !!tracks.local.audio,
+            video: !!tracks.local.video,
+          },
+          bot: {
+            audio: !!tracks.bot?.audio,
+            video: !!tracks.bot?.video,
+          },
+        })}`
+      );
+    }, [client, log])
+  );
+
+  // Log transcripts
+  useRTVIClientEvent(
+    RTVIEvent.UserTranscript,
+    useCallback(
+      (data: TranscriptData) => {
+        // Only log final transcripts
+        if (data.final) {
+          log(`User: ${data.text}`);
+        }
+      },
+      [log]
+    )
+  );
+
+  useRTVIClientEvent(
+    RTVIEvent.BotTranscript,
+    useCallback(
+      (data: BotLLMTextData) => {
+        log(`Bot: ${data.text}`);
+      },
+      [log]
+    )
+  );
+
+  useRTVIClientEvent(
+    RTVIEvent.ServerMessage,
+    useCallback(
+      (data: SmartTurnResultData) => {
+        log(
+          `Smart Turn:
+    ${data.is_complete ? 'COMPLETE' : 'INCOMPLETE'},
+    Probability: ${(data.probability * 100).toFixed(1)}%,
+    Model inference: ${data.inference_time_ms?.toFixed(2) || 'N/A'}ms,
+    Server processing: ${data.server_total_time_ms?.toFixed(2) || 'N/A'}ms,
+    End-to-end: ${data.e2e_processing_time_ms?.toFixed(2) || 'N/A'}ms`
+        );
+      },
+      [log]
+    )
+  );
+  return (
+    <div className="debug-panel">
+      <h3>Debug Info</h3>
+      <div ref={debugLogRef} className="debug-log" />
+    </div>
+  );
+}

examples/fal-smart-turn/client/src/components/StatusDisplay.tsx

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+import { useRTVIClientTransportState } from '@pipecat-ai/client-react';
+
+export function StatusDisplay() {
+  const transportState = useRTVIClientTransportState();
+
+  return (
+    <div className="status">
+      Status: <span>{transportState}</span>
+    </div>
+  );
+}