primvoices-react/dist/index.umd.js

React client for the PrimVoices Agents API

(function(x,b){typeof exports=="object"&&typeof module<"u"?b(exports,require("react")):typeof define=="function"&&define.amd?define(["exports","react"],b):(x=typeof globalThis<"u"?globalThis:x||self,b(x["primvoices-react"]={},x.React))})(this,function(x,b){"use strict";var It=Object.defineProperty;var Dt=(x,b,D)=>b in x?It(x,b,{enumerable:!0,configurable:!0,writable:!0,value:D}):x[b]=D;var d=(x,b,D)=>(Dt(x,typeof b!="symbol"?b+"":b,D),D);let D;const $e=new Uint8Array(16);function ze(){if(!D&&(D=typeof crypto<"u"&&crypto.getRandomValues&&crypto.getRandomValues.bind(crypto),!D))throw new Error("crypto.getRandomValues() not supported. 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Xe{constructor(){d(this,"LOG_LEVELS",{DEBUG:0,INFO:1,WARN:2,ERROR:3});d(this,"DEFAULT_LOG_LEVEL",this.LOG_LEVELS.INFO);d(this,"logLevel",this.DEFAULT_LOG_LEVEL)}setLogLevel(t){this.logLevel=this.LOG_LEVELS[t]}debug(t,...r){this.logLevel<=this.LOG_LEVELS.DEBUG&&console.log(t,...r)}info(t,...r){this.logLevel<=this.LOG_LEVELS.INFO&&console.log(t,...r)}warn(t,...r){this.logLevel<=this.LOG_LEVELS.WARN&&console.warn(t,...r)}error(t,...r){this.logLevel<=this.LOG_LEVELS.ERROR&&console.error(t,...r)}}const v=new Xe;class he{constructor(t){d(this,"socket",null);d(this,"audioContext",null);d(this,"mediaStream",null);d(this,"microphoneSource",null);d(this,"audioWorklet",null);d(this,"analyser",null);d(this,"audioQueue",[]);d(this,"currentAudioSource",null);d(this,"debugQueue",[]);d(this,"workletInitialized",!1);d(this,"isListening",!1);d(this,"isConnected",!1);d(this,"isPlaying",!1);d(this,"callSid","");d(this,"streamSid","");d(this,"config");d(this,"speechDetected",!1);d(this,"statsInterval",null);d(this,"initialAgentId");d(this,"initialEnvironment");d(this,"redirected",!1);d(this,"scheduledSources",[]);d(this,"nextPlaybackTime",0);d(this,"scheduledMarkTimers",[]);d(this,"scheduleTimer",null);d(this,"minPrebufferSeconds",.25);d(this,"scheduleHorizonSeconds",1);d(this,"onConnectionOpen",null);d(this,"onConnectionClose",null);d(this,"onConnectionError",null);d(this,"onStartListening",null);d(this,"onStopListening",null);d(this,"onPlayStart",null);d(this,"onPlayStop",null);d(this,"onAudioStats",null);d(this,"onDebugMessage",null);d(this,"lastRedirectKey",null);this.config={apiUrl:"https://api.primvoices.com",logLevel:"ERROR",customParameters:{},...t},this.initialAgentId=this.config.agentId,this.initialEnvironment=this.config.environment,v.setLogLevel(this.config.logLevel||"ERROR"),this.initAudioContext()}setCallbacks({onOpen:t,onClose:r,onError:i,onListeningStart:s,onListeningStop:a,onAudioStart:p,onAudioStop:u,onAudioStats:g,onDebugMessage:k}){this.onConnectionOpen=t||null,this.onConnectionClose=r||null,this.onConnectionError=i||null,this.onStartListening=s||null,this.onStopListening=a||null,this.onPlayStart=p||null,this.onPlayStop=u||null,this.onAudioStats=g||null,this.onDebugMessage=k||null}async getAgentConfiguration(){const t=new URLSearchParams;return t.set("inputType","mic"),t.set("environment",this.config.environment||""),this.config.customParameters&&Object.entries(this.config.customParameters).forEach(([s,a])=>{t.set(`custom_${s}`,a)}),(await(await fetch(`${this.config.apiUrl}/v1/agents/${this.config.agentId}/call?${t.toString()}`,{method:"POST",headers:{"Content-Type":"application/json"},body:JSON.stringify({})})).json()).data}async connect(){if(this.callSid=de(),this.streamSid=de(),this.clearDebugQueue(),this.socket&&this.socket.close(),!this.config.agentId)throw new Error("agentId is required");if(!this.config.serverUrl){const r=await this.getAgentConfiguration();v.info("[WebSocketClient] Agent configuration:",r),this.config.serverUrl=r.url,this.config.customParameters=r.parameters}let t=this.config.serverUrl;if(this.config.canary){const r=t.includes("?")?"&":"?";t=`${t}${r}canary=true`}return this.socket=new WebSocket(t),v.info(`[WebSocketClient] Connecting to ${t}`),v.info(`[WebSocketClient] Session IDs: call=${this.callSid}, stream=${this.streamSid}`),new Promise((r,i)=>{if(!this.socket){i(new Error("WebSocket not initialized"));return}this.socket.onopen=()=>{var p;this.isConnected=!0;const s={...this.config.customParameters||{},agentId:this.config.agentId,environment:this.config.environment||"",inputType:"mic",origin:this.config.origin||""},a={start:{streamSid:this.streamSid,callSid:this.callSid,customParameters:s}};(p=this.socket)==null||p.send(JSON.stringify(a)),v.info("[WebSocketClient] Connection established"),v.info("[WebSocketClient] Sent start message:",a),this.onConnectionOpen&&this.onConnectionOpen(),r()},this.socket.onclose=()=>{this.isConnected=!1,v.info("[WebSocketClient] Connection closed"),this.onConnectionClose&&this.onConnectionClose(),this.stopListening()},this.socket.onerror=s=>{v.error("[WebSocketClient] WebSocket error:",s),this.onConnectionError&&this.onConnectionError()},this.socket.onmessage=s=>{try{const a=JSON.parse(s.data);a.event==="media"?this.handleAudioMessage(a):a.event==="clear"?this.handleClearMessage(a):a.event==="mark"?this.handleMarkMessage(a):a.event==="debug"?this.handleDebugMessage(a):a.event==="control"&&this.handleControlMessage(a)}catch(a){v.error("[WebSocketClient] Error parsing message:",a)}}})}handleAudioMessage(t){if(!t.media||!t.media.payload)return;const r=t.media.payload,i=atob(r),s=new Uint8Array(i.length);for(let u=0;u<i.length;u++)s[u]=i.charCodeAt(u);let a;if(s.length%2!==0){const u=new ArrayBuffer(s.length+s.length%2);new Uint8Array(u).set(s),a=new Int16Array(u)}else{const u=new ArrayBuffer(s.length);new Uint8Array(u).set(s),a=new Int16Array(u)}const p=new Float32Array(a.length);for(let u=0;u<a.length;u++)p[u]=a[u]/32768;this.addToAudioQueue(p,24e3)}handleClearMessage(t){v.info("[WebSocketClient] Received clear message:",t),this.audioQueue.forEach(r=>{r.mark&&this.socket&&this.socket.readyState===WebSocket.OPEN&&(this.socket.send(JSON.stringify({event:"mark",mark:r.mark,streamSid:this.streamSid})),v.debug(`[WebSocketClient] Sent mark event: ${r}`))}),this.clearAudioQueue()}handleMarkMessage(t){var i;v.info(`[WebSocketClient] Received mark event: ${(i=t.mark)==null?void 0:i.name}`);const r={mark:t.mark};this.addToAudioQueue(new Float32Array(0),24e3,r)}handleDebugMessage(t){v.info("[WebSocketClient] Received debug message:",t),this.debugQueue.push(t),this.onDebugMessage&&this.onDebugMessage(this.debugQueue)}async handleControlMessage(t){var r,i,s;try{if(t.name==="redirect"){const a=(r=t==null?void 0:t.data)==null?void 0:r.agentId,p=((i=t==null?void 0:t.data)==null?void 0:i.environment)||this.config.environment||"";if(!a)return;const u=`${a}|${p||""}`;if(a===this.config.agentId&&(p||"")===(this.config.environment||"")&&this.socket&&(this.socket.readyState===WebSocket.OPEN||this.socket.readyState===WebSocket.CONNECTING)||this.lastRedirectKey===u)return;this.stopListening(),this.clearAudioQueue(),(s=this.socket)==null||s.close(),this.config.agentId=a,this.config.environment=p||this.config.environment,this.redirected=!0,this.lastRedirectKey=u,this.connect().then(()=>this.startListening()).catch(k=>v.error("[WebSocketClient] Error during redirect reconnect:",k))}}catch(a){v.error("[WebSocketClient] Error handling control message:",a)}}async initAudioContext(){try{if(this.audioContext=new(window.AudioContext||window.webkitAudioContext),this.analyser=this.audioContext.createAnalyser(),this.analyser.fftSize=256,this.audioContext.audioWorklet&&!this.workletInitialized){const t=`
          class AudioProcessor extends AudioWorkletProcessor {
            constructor() {
              super();
              this.port.onmessage = this.handleMessage.bind(this);
            }
          
            handleMessage(event) {
              if (event.data.command === "stop") {
                // Handle stop command if needed
              }
            }
          
            process(inputs, outputs, parameters) {
              // Get input data from the microphone
              const input = inputs[0];
              if (input.length > 0 && input[0].length > 0) {
                const audioData = input[0];
                
                // Send audio data to the main thread
                this.port.postMessage({
                  audioData: audioData
                });
              }
              
              // Return true to keep the processor alive
              return true;
            }
          }
          
          registerProcessor("audio-processor", AudioProcessor);
        `,r=new Blob([t],{type:"application/javascript"}),i=URL.createObjectURL(r);await this.audioContext.audioWorklet.addModule(i),URL.revokeObjectURL(i),this.workletInitialized=!0,v.info("[WebSocketClient] Audio worklet initialized")}}catch(t){v.error("[WebSocketClient] Error initializing audio context:",t)}}async startListening(){var t;if(!(this.isListening||!this.isConnected))try{if(((t=this.audioContext)==null?void 0:t.state)==="suspended"&&await this.audioContext.resume(),this.mediaStream=await navigator.mediaDevices.getUserMedia({audio:!0,video:!1}),!this.audioContext)throw new Error("Audio context not initialized");if(this.microphoneSource=this.audioContext.createMediaStreamSource(this.mediaStream),this.workletInitialized)this.audioWorklet=new AudioWorkletNode(this.audioContext,"audio-processor"),this.microphoneSource.connect(this.audioWorklet),this.analyser&&this.microphoneSource.connect(this.analyser),this.audioWorklet.port.onmessage=r=>{r.data.audioData&&this.isListening&&this.processAudioData(r.data.audioData)};else{v.warn("[WebSocketClient] Using ScriptProcessorNode fallback");const r=4096,i=this.audioContext.createScriptProcessor(r,1,1);this.microphoneSource.connect(i),i.connect(this.audioContext.destination),this.analyser&&this.microphoneSource.connect(this.analyser),i.onaudioprocess=s=>{if(this.isListening){const a=s.inputBuffer.getChannelData(0);this.processAudioData(a)}}}this.isListening=!0,this.startAudioStatsMonitoring(),this.onStartListening&&this.onStartListening(),v.info("[WebSocketClient] Started listening")}catch(r){v.error("[WebSocketClient] Error starting microphone:",r),this.isListening=!1}}stopListening(){this.isListening&&(this.mediaStream&&(this.mediaStream.getTracks().forEach(t=>t.stop()),this.mediaStream=null),this.microphoneSource&&(this.microphoneSource.disconnect(),this.microphoneSource=null),this.audioWorklet&&(this.audioWorklet.disconnect(),this.audioWorklet=null),this.isListening=!1,this.stopAudioStatsMonitoring(),this.onStopListening&&this.onStopListening(),v.info("[WebSocketClient] Stopped listening"))}sendTextEvent(t){if(!this.socket||this.socket.readyState!==WebSocket.OPEN){v.error("[WebSocketClient] Cannot send text message: WebSocket is not open");return}this.socket.send(JSON.stringify({event:"text",text:t}))}disconnect(){this.stopListening(),this.clearAudioQueue(),this.stopAudioStatsMonitoring(),this.socket&&(this.socket.close(),this.socket=null),this.isConnected=!1,this.lastRedirectKey=null,this.redirected&&(this.config.agentId=this.initialAgentId,this.config.environment=this.initialEnvironment,this.config.customParameters={...this.config.customParameters||{},agentId:this.config.agentId,environment:this.config.environment||"",inputType:"mic"},this.redirected=!1,v.info(`[WebSocketClient] Restored initial agent after redirect: agent=${this.config.agentId} env=${this.config.environment}`)),this.onConnectionClose&&this.onConnectionClose()}processAudioData(t){var r;if(!(!this.socket||this.socket.readyState!==WebSocket.OPEN))try{const i=((r=this.audioContext)==null?void 0:r.sampleRate)||48e3,s=16e3,a=t.some(S=>Math.abs(S)>.01);v.debug(`[WebSocketClient] Processing audio frame: ${t.length} samples at ${i}Hz ${a?"(has sound)":"(silent)"}`);const p=this.downsampleBuffer(t,i,s);v.debug(`[WebSocketClient] Downsampled to ${p.length} samples at ${s}Hz`);const u=He(p);v.debug(`[WebSocketClient] Converted to μ-law format: ${u.length} bytes`);const g=this.arrayBufferToBase64(u.buffer),k={event:"media",streamSid:this.streamSid,media:{payload:g}};this.socket.send(JSON.stringify(k)),v.debug(`[WebSocketClient] Sent μ-law encoded audio: ${g.length} base64 chars`)}catch(i){v.error("[WebSocketClient] Error processing or sending audio:",i)}}arrayBufferToBase64(t){const r=new Uint8Array(t);let i="";for(let s=0;s<r.byteLength;s++)i+=String.fromCharCode(r[s]);return btoa(i)}downsampleBuffer(t,r,i){if(i>r)throw new Error("downsampling rate should be lower than original sample rate");const s=r/i,a=Math.round(t.length/s),p=new Int16Array(a);let u=0;for(let g=0;g<a;g++){const k=Math.round((g+1)*s);let S=0,w=0;for(let P=u;P<k&&P<t.length;P++)S+=t[P],w++;p[g]=w>0?Math.round(S/w*32767):0,u=k}return p}addToAudioQueue(t,r=16e3,i){this.audioQueue.push({data:t,sampleRate:r,mark:i}),this.schedulePlayback()}clearAudioQueue(){if(this.audioQueue=[],this.currentAudioSource){try{this.currentAudioSource.stop()}catch{}try{this.currentAudioSource.disconnect()}catch{}this.currentAudioSource=null}this.scheduledSources.forEach(t=>{try{t.stop()}catch{}try{t.disconnect()}catch{}}),this.scheduledSources=[],this.scheduledMarkTimers.forEach(t=>clearTimeout(t)),this.scheduledMarkTimers=[],this.scheduleTimer&&(clearInterval(this.scheduleTimer),this.scheduleTimer=null),this.nextPlaybackTime=0,this.isPlaying=!1}clearDebugQueue(){this.debugQueue=[],this.onDebugMessage&&this.onDebugMessage([])}playNextInQueue(){if(!this.audioContext||this.audioQueue.length===0){this.isPlaying=!1,this.isListening||this.stopAudioStatsMonitoring(),this.onPlayStop&&this.onPlayStop();return}this.schedulePlayback()}getBufferedSecondsInQueue(){return this.audioQueue.reduce((t,r)=>r.mark||r.data.length===0||r.sampleRate<=0?t:t+r.data.length/r.sampleRate,0)}schedulePlayback(){if(this.audioContext){if(!this.isPlaying){const t=this.getBufferedSecondsInQueue();if(t<=0||t<this.minPrebufferSeconds)return;const r=Math.max(this.audioContext.currentTime+.02,this.audioContext.currentTime+this.minPrebufferSeconds);this.nextPlaybackTime=r,this.isPlaying=!0,this.statsInterval||this.startAudioStatsMonitoring(),this.onPlayStart&&this.onPlayStart(),this.scheduleTimer||(this.scheduleTimer=window.setInterval(()=>{this.scheduleFromQueue()},50))}this.scheduleFromQueue()}}scheduleFromQueue(){if(this.audioContext)for(;this.audioQueue.length>0&&!(this.nextPlaybackTime-this.audioContext.currentTime>this.scheduleHorizonSeconds);){const r=this.audioQueue.shift();if(!r)break;const{data:i,sampleRate:s,mark:a}=r;if(a){const S=Math.max(0,(this.nextPlaybackTime-this.audioContext.currentTime)*1e3),w=window.setTimeout(()=>{var P;this.socket&&this.socket.readyState===WebSocket.OPEN&&(this.socket.send(JSON.stringify({event:"mark",streamSid:this.streamSid,mark:a.mark})),v.debug(`[WebSocketClient] Sent mark event (scheduled): ${(P=a.mark)==null?void 0:P.name}`))},S);this.scheduledMarkTimers.push(w);continue}if(i.length===0||s<=0)continue;const p=this.audioContext.createBuffer(1,i.length,s);p.getChannelData(0).set(i);const u=this.audioContext.createBufferSource();u.buffer=p,this.analyser&&u.connect(this.analyser),u.connect(this.audioContext.destination),u.onended=()=>{this.scheduledSources=this.scheduledSources.filter(S=>S!==u);try{u.disconnect()}catch{}this.scheduleFromQueue(),this.scheduledSources.length===0&&this.audioQueue.length===0&&(this.isPlaying=!1,this.isListening||this.stopAudioStatsMonitoring(),this.onPlayStop&&this.onPlayStop(),this.scheduleTimer&&(clearInterval(this.scheduleTimer),this.scheduleTimer=null))};const g=Math.max(this.audioContext.currentTime+.005,this.nextPlaybackTime);try{u.start(g)}catch{u.start()}this.scheduledSources.push(u);const k=p.duration;this.nextPlaybackTime=g+k,this.currentAudioSource=u}}getAudioLevel(){if(!this.analyser)return 0;const t=new Uint8Array(this.analyser.frequencyBinCount);this.analyser.getByteFrequencyData(t);let r=0;for(let i=0;i<t.length;i++)r+=t[i];return r/t.length/255}startAudioStatsMonitoring(){this.statsInterval&&clearInterval(this.statsInterval),this.statsInterval=window.setInterval(()=>{const t=this.getAudioLevel(),r=t>.1;this.onAudioStats&&this.onAudioStats({level:t,isSpeaking:r,isPlayback:this.isPlaying}),r!==this.speechDetected&&(this.speechDetected=r)},100)}stopAudioStatsMonitoring(){this.statsInterval&&!this.isListening&&!this.isPlaying&&(clearInterval(this.statsInterval),this.statsInterval=null)}isCurrentlyConnected(){return this.isConnected}isCurrentlyListening(){return this.isListening}isCurrentlyPlaying(){return this.isPlaying}}var X={exports:{}},V={};/**
 * @license React
 * react-jsx-runtime.production.min.js
 *
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */var ge;function qe(){if(ge)return V;ge=1;var c=b,t=Symbol.for("react.element"),r=Symbol.for("react.fragment"),i=Object.prototype.hasOwnProperty,s=c.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.ReactCurrentOwner,a={key:!0,ref:!0,__self:!0,__source:!0};function p(u,g,k){var S,w={},P=null,A=null;k!==void 0&&(P=""+k),g.key!==void 0&&(P=""+g.key),g.ref!==void 0&&(A=g.ref);for(S in g)i.call(g,S)&&!a.hasOwnProperty(S)&&(w[S]=g[S]);if(u&&u.defaultProps)for(S in g=u.defaultProps,g)w[S]===void 0&&(w[S]=g[S]);return{$$typeof:t,type:u,key:P,ref:A,props:w,_owner:s.current}}return V.Fragment=r,V.jsx=p,V.jsxs=p,V}var B={};/**
 * @license React
 * react-jsx-runtime.development.js
 *
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
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