From e0519fbe1bbfd19ccd5ed90fbb97d76e4b1b67c8 Mon Sep 17 00:00:00 2001
From: sagar-vapi <161429577+sagar-vapi@users.noreply.github.com>
Date: Sat, 8 Jun 2024 23:12:39 +0530
Subject: [PATCH] Adding support for video recording on daily side (#38)

* Adding support for video recording on daily side

* fixing variable name and adding stop recording in case of error

* reading artifactPlan from call object instead of assistant to handle assistantId case

---------

Co-authored-by: Sagar Agarwal <sagar0581@gmail.com>
---
 api.ts  | 21 +++++++++++++++++++++
 vapi.ts | 29 +++++++++++++++++++++++++----
 2 files changed, 46 insertions(+), 4 deletions(-)

diff --git a/api.ts b/api.ts
index 1fd4b82..31089ba 100644
--- a/api.ts
+++ b/api.ts
@@ -1811,6 +1811,14 @@ export interface AnalysisPlan {
   structuredDataSchema?: JsonSchema;
 }
 
+export interface ArtifactPlan {
+    /**
+   * This sets whether the video is recorded with Daily. Defaults to false.
+   * @example true
+   */
+    videoRecordingEnabled?: boolean;
+}
+
 export interface CreateAssistantDTO {
   /** These are the options for the assistant's transcriber. */
   transcriber?: DeepgramTranscriber | TalkscriberTranscriber;
@@ -1981,6 +1989,7 @@ export interface CreateAssistantDTO {
    */
   serverUrlSecret?: string;
   analysisPlan?: AnalysisPlan;
+  artifactPlan?: ArtifactPlan;
 }
 
 export interface Assistant {
@@ -2153,6 +2162,7 @@ export interface Assistant {
    */
   serverUrlSecret?: string;
   analysisPlan?: AnalysisPlan;
+  artifactPlan?: ArtifactPlan;
   /** This is the unique identifier for the assistant. */
   id: string;
   /** This is the unique identifier for the org that this assistant belongs to. */
@@ -2339,6 +2349,7 @@ export interface UpdateAssistantDTO {
    */
   serverUrlSecret?: string;
   analysisPlan?: AnalysisPlan;
+  artifactPlan?: ArtifactPlan;
 }
 
 export interface AnalysisCostBreakdown {
@@ -2394,6 +2405,11 @@ export interface Analysis {
   successEvaluation?: string;
 }
 
+export interface Artifact {
+  /** Video recording url if assistant.artifactPlan.videoRecordingEnabled was set to true */
+  videoRecordingUrl?: string;
+}
+
 export interface PhoneCallTwilioDetails {
   statusCallbackEvent?: 'initiated' | 'ringing' | 'answered' | 'completed';
   machineDetection?: 'Enable' | 'DetectMessageEnd';
@@ -2598,6 +2614,7 @@ export interface OverrideAssistantDTO {
    */
   serverUrlSecret?: string;
   analysisPlan?: AnalysisPlan;
+  artifactPlan?: ArtifactPlan;
 }
 
 export interface SquadMemberDTO {
@@ -2803,6 +2820,10 @@ export interface Call {
   stereoRecordingUrl?: string;
   /** This is the analysis of the call. Customize the analysis by setting `assistant.analysisPlan`. */
   analysis?: Analysis;
+  /** This is the artifacts related to the call. Customize the analysis by setting `assistant.artifactPlan`. */
+  artifact?: Artifact;
+  /** This stores a copy of assistant.artifactPlan. */
+  artifactPlan?: ArtifactPlan;
   /** These are the messages that were spoken during the call. */
   messages?: object[];
   /**
diff --git a/vapi.ts b/vapi.ts
index bd7f441..8acf5ff 100644
--- a/vapi.ts
+++ b/vapi.ts
@@ -29,13 +29,13 @@ async function buildAudioPlayer(track: any, participantId: string) {
   await startPlayer(player, track);
   return player;
 }
-function subscribeToTracks(e: DailyEventObjectParticipant, call: DailyCall) {
+function subscribeToTracks(e: DailyEventObjectParticipant, call: DailyCall, isVideoRecordingEnabled?: boolean) {
   if (e.participant.local) return;
 
   call.updateParticipant(e.participant.session_id, {
     setSubscribedTracks: {
       audio: true,
-      video: false,
+      video: isVideoRecordingEnabled,
     },
   });
 }
@@ -145,14 +145,21 @@ export default class Vapi extends VapiEventEmitter {
       if (this.call) {
         this.cleanup();
       }
+      const isVideoRecordingEnabled =
+        webCall?.artifactPlan?.videoRecordingEnabled ??
+        false;
+
       this.call = DailyIframe.createCallObject({
         audioSource: true,
-        videoSource: false,
+        videoSource: isVideoRecordingEnabled,
       });
       this.call.iframe()?.style.setProperty('display', 'none');
 
       this.call.on('left-meeting', () => {
         this.emit('call-end');
+        if (isVideoRecordingEnabled) {
+          this.call?.stopRecording();
+        }
         this.cleanup();
       });
 
@@ -163,6 +170,9 @@ export default class Vapi extends VapiEventEmitter {
 
       this.call.on('error', (error: any) => {
         this.emit('error', error);
+        if (isVideoRecordingEnabled) {
+          this.call?.stopRecording();
+        }
       });
 
       this.call.on('camera-error', (error: any) => {
@@ -182,7 +192,7 @@ export default class Vapi extends VapiEventEmitter {
 
       this.call.on('participant-joined', (e) => {
         if (!e || !this.call) return;
-        subscribeToTracks(e, this.call);
+        subscribeToTracks(e, this.call, isVideoRecordingEnabled);
       });
 
       await this.call.join({
@@ -190,6 +200,17 @@ export default class Vapi extends VapiEventEmitter {
         subscribeToTracksAutomatically: false,
       });
 
+      if (isVideoRecordingEnabled) {
+        await this.call.startRecording({
+          width: 1280,
+          height: 720,
+          backgroundColor: '#FF1F2D3D',
+          layout: {
+            preset: 'default',
+          },
+        });
+      }
+
       this.call.startRemoteParticipantsAudioLevelObserver(100);
 
       this.call.on('remote-participants-audio-level', (e) => {