Add twilio softphone with integrated AI assistant
This commit is contained in:
826
backend/src/voice/voice.service.ts
Normal file
826
backend/src/voice/voice.service.ts
Normal file
@@ -0,0 +1,826 @@
|
||||
import { Injectable, Logger } from '@nestjs/common';
|
||||
import { TenantDatabaseService } from '../tenant/tenant-database.service';
|
||||
import { getCentralPrisma } from '../prisma/central-prisma.service';
|
||||
import { IntegrationsConfig, TwilioConfig, OpenAIConfig } from './interfaces/integration-config.interface';
|
||||
import * as Twilio from 'twilio';
|
||||
import { WebSocket } from 'ws';
|
||||
import { v4 as uuidv4 } from 'uuid';
|
||||
|
||||
const AccessToken = Twilio.jwt.AccessToken;
|
||||
const VoiceGrant = AccessToken.VoiceGrant;
|
||||
|
||||
@Injectable()
|
||||
export class VoiceService {
|
||||
private readonly logger = new Logger(VoiceService.name);
|
||||
private twilioClients: Map<string, Twilio.Twilio> = new Map();
|
||||
private openaiConnections: Map<string, WebSocket> = new Map(); // callSid -> WebSocket
|
||||
private callStates: Map<string, any> = new Map(); // callSid -> call state
|
||||
private voiceGateway: any; // Reference to gateway (to avoid circular dependency)
|
||||
|
||||
constructor(
|
||||
private readonly tenantDbService: TenantDatabaseService,
|
||||
) {}
|
||||
|
||||
/**
|
||||
* Set gateway reference (called by gateway on init)
|
||||
*/
|
||||
setGateway(gateway: any) {
|
||||
this.voiceGateway = gateway;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get Twilio client for a tenant
|
||||
*/
|
||||
private async getTwilioClient(tenantIdOrDomain: string): Promise<{ client: Twilio.Twilio; config: TwilioConfig; tenantId: string }> {
|
||||
// Check cache first
|
||||
if (this.twilioClients.has(tenantIdOrDomain)) {
|
||||
const centralPrisma = getCentralPrisma();
|
||||
|
||||
// Look up tenant by domain
|
||||
const domainRecord = await centralPrisma.domain.findUnique({
|
||||
where: { domain: tenantIdOrDomain },
|
||||
include: { tenant: { select: { id: true, integrationsConfig: true } } },
|
||||
});
|
||||
|
||||
const config = this.getIntegrationConfig(domainRecord?.tenant?.integrationsConfig as any);
|
||||
return {
|
||||
client: this.twilioClients.get(tenantIdOrDomain),
|
||||
config: config.twilio,
|
||||
tenantId: domainRecord.tenant.id
|
||||
};
|
||||
}
|
||||
|
||||
// Fetch tenant integrations config
|
||||
const centralPrisma = getCentralPrisma();
|
||||
|
||||
this.logger.log(`Looking up domain: ${tenantIdOrDomain}`);
|
||||
|
||||
const domainRecord = await centralPrisma.domain.findUnique({
|
||||
where: { domain: tenantIdOrDomain },
|
||||
include: { tenant: { select: { id: true, integrationsConfig: true } } },
|
||||
});
|
||||
|
||||
this.logger.log(`Domain record found: ${!!domainRecord}, Tenant: ${!!domainRecord?.tenant}, Config: ${!!domainRecord?.tenant?.integrationsConfig}`);
|
||||
|
||||
if (!domainRecord?.tenant) {
|
||||
throw new Error(`Domain ${tenantIdOrDomain} not found`);
|
||||
}
|
||||
|
||||
if (!domainRecord.tenant.integrationsConfig) {
|
||||
throw new Error('Tenant integrations config not found. Please configure Twilio credentials in Settings > Integrations');
|
||||
}
|
||||
|
||||
const config = this.getIntegrationConfig(domainRecord.tenant.integrationsConfig as any);
|
||||
|
||||
this.logger.log(`Config decrypted: ${!!config.twilio}, AccountSid: ${config.twilio?.accountSid?.substring(0, 10)}..., AuthToken: ${config.twilio?.authToken?.substring(0, 10)}..., Phone: ${config.twilio?.phoneNumber}`);
|
||||
|
||||
if (!config.twilio?.accountSid || !config.twilio?.authToken) {
|
||||
throw new Error('Twilio credentials not configured for tenant');
|
||||
}
|
||||
|
||||
const client = Twilio.default(config.twilio.accountSid, config.twilio.authToken);
|
||||
this.twilioClients.set(tenantIdOrDomain, client);
|
||||
|
||||
return { client, config: config.twilio, tenantId: domainRecord.tenant.id };
|
||||
}
|
||||
|
||||
/**
|
||||
* Decrypt and parse integrations config
|
||||
*/
|
||||
private getIntegrationConfig(encryptedConfig: any): IntegrationsConfig {
|
||||
if (!encryptedConfig) {
|
||||
return {};
|
||||
}
|
||||
|
||||
// If it's already decrypted (object), return it
|
||||
if (typeof encryptedConfig === 'object' && encryptedConfig.twilio) {
|
||||
return encryptedConfig;
|
||||
}
|
||||
|
||||
// If it's encrypted (string), decrypt it
|
||||
if (typeof encryptedConfig === 'string') {
|
||||
return this.tenantDbService.decryptIntegrationsConfig(encryptedConfig);
|
||||
}
|
||||
|
||||
return {};
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate Twilio access token for browser Voice SDK
|
||||
*/
|
||||
async generateAccessToken(tenantDomain: string, userId: string): Promise<string> {
|
||||
const { config, tenantId } = await this.getTwilioClient(tenantDomain);
|
||||
|
||||
if (!config.accountSid || !config.apiKey || !config.apiSecret) {
|
||||
throw new Error('Twilio API credentials not configured. Please add API Key and Secret in Settings > Integrations');
|
||||
}
|
||||
|
||||
// Create an access token
|
||||
const token = new AccessToken(
|
||||
config.accountSid,
|
||||
config.apiKey,
|
||||
config.apiSecret,
|
||||
{ identity: userId, ttl: 3600 } // 1 hour expiry
|
||||
);
|
||||
|
||||
// Create a Voice grant
|
||||
const voiceGrant = new VoiceGrant({
|
||||
outgoingApplicationSid: config.twimlAppSid, // TwiML App SID for outbound calls
|
||||
incomingAllow: true, // Allow incoming calls
|
||||
});
|
||||
|
||||
token.addGrant(voiceGrant);
|
||||
|
||||
return token.toJwt();
|
||||
}
|
||||
|
||||
/**
|
||||
* Initiate outbound call
|
||||
*/
|
||||
async initiateCall(params: {
|
||||
tenantId: string;
|
||||
userId: string;
|
||||
toNumber: string;
|
||||
}) {
|
||||
const { tenantId: tenantDomain, userId, toNumber } = params;
|
||||
|
||||
try {
|
||||
this.logger.log(`=== INITIATING CALL ===`);
|
||||
this.logger.log(`Domain: ${tenantDomain}, To: ${toNumber}, User: ${userId}`);
|
||||
|
||||
// Validate phone number
|
||||
if (!toNumber.match(/^\+?[1-9]\d{1,14}$/)) {
|
||||
throw new Error(`Invalid phone number format: ${toNumber}. Use E.164 format (e.g., +1234567890)`);
|
||||
}
|
||||
|
||||
const { client, config, tenantId } = await this.getTwilioClient(tenantDomain);
|
||||
this.logger.log(`Twilio client obtained for tenant: ${tenantId}`);
|
||||
|
||||
// Get from number
|
||||
const fromNumber = config.phoneNumber;
|
||||
if (!fromNumber) {
|
||||
throw new Error('Twilio phone number not configured');
|
||||
}
|
||||
this.logger.log(`From number: ${fromNumber}`);
|
||||
|
||||
// Construct tenant-specific webhook URLs using HTTPS (for Traefik)
|
||||
const backendUrl = `https://${tenantDomain}`;
|
||||
const twimlUrl = `${backendUrl}/api/voice/twiml/outbound?phoneNumber=${encodeURIComponent(fromNumber)}&toNumber=${encodeURIComponent(toNumber)}`;
|
||||
const statusUrl = `${backendUrl}/api/voice/webhook/status`;
|
||||
|
||||
this.logger.log(`TwiML URL: ${twimlUrl}`);
|
||||
this.logger.log(`Status URL: ${statusUrl}`);
|
||||
|
||||
// Create call record in database
|
||||
const tenantKnex = await this.tenantDbService.getTenantKnexById(tenantId);
|
||||
const callId = uuidv4();
|
||||
|
||||
// Initiate call via Twilio
|
||||
this.logger.log(`Calling Twilio API...`);
|
||||
|
||||
// For Device-to-Number calls, we need to use a TwiML App SID
|
||||
// The Twilio SDK will handle the Device connection, and we return TwiML with Dial
|
||||
const call = await client.calls.create({
|
||||
to: toNumber,
|
||||
from: fromNumber, // Your Twilio phone number
|
||||
url: twimlUrl,
|
||||
statusCallback: statusUrl,
|
||||
statusCallbackEvent: ['initiated', 'ringing', 'answered', 'completed'],
|
||||
statusCallbackMethod: 'POST',
|
||||
record: false,
|
||||
machineDetection: 'Enable', // Optional: detect answering machines
|
||||
});
|
||||
|
||||
this.logger.log(`Call created successfully: ${call.sid}, Status: ${call.status}`);
|
||||
|
||||
// Store call in database
|
||||
await tenantKnex('calls').insert({
|
||||
id: callId,
|
||||
call_sid: call.sid,
|
||||
direction: 'outbound',
|
||||
from_number: fromNumber,
|
||||
to_number: toNumber,
|
||||
status: 'queued',
|
||||
user_id: userId,
|
||||
created_at: tenantKnex.fn.now(),
|
||||
updated_at: tenantKnex.fn.now(),
|
||||
});
|
||||
|
||||
// Store call state in memory
|
||||
this.callStates.set(call.sid, {
|
||||
callId,
|
||||
callSid: call.sid,
|
||||
tenantId,
|
||||
userId,
|
||||
direction: 'outbound',
|
||||
status: 'queued',
|
||||
});
|
||||
|
||||
this.logger.log(`Outbound call initiated: ${call.sid}`);
|
||||
|
||||
return {
|
||||
callId,
|
||||
callSid: call.sid,
|
||||
status: 'queued',
|
||||
};
|
||||
} catch (error) {
|
||||
this.logger.error('Failed to initiate call', error);
|
||||
throw error;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Accept incoming call
|
||||
*/
|
||||
async acceptCall(params: {
|
||||
callSid: string;
|
||||
tenantId: string;
|
||||
userId: string;
|
||||
}) {
|
||||
const { callSid, tenantId, userId } = params;
|
||||
|
||||
try {
|
||||
// Note: Twilio doesn't support updating call to 'in-progress' via API
|
||||
// Call status is managed by TwiML and call flow
|
||||
// We'll update our database status instead
|
||||
|
||||
// Update database
|
||||
const tenantKnex = await this.tenantDbService.getTenantKnexById(tenantId);
|
||||
await tenantKnex('calls')
|
||||
.where({ call_sid: callSid })
|
||||
.update({
|
||||
status: 'in-progress',
|
||||
user_id: userId,
|
||||
started_at: tenantKnex.fn.now(),
|
||||
updated_at: tenantKnex.fn.now(),
|
||||
});
|
||||
|
||||
// Update state
|
||||
const state = this.callStates.get(callSid) || {};
|
||||
this.callStates.set(callSid, {
|
||||
...state,
|
||||
status: 'in-progress',
|
||||
userId,
|
||||
});
|
||||
|
||||
this.logger.log(`Call accepted: ${callSid} by user ${userId}`);
|
||||
} catch (error) {
|
||||
this.logger.error('Failed to accept call', error);
|
||||
throw error;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Reject incoming call
|
||||
*/
|
||||
async rejectCall(callSid: string, tenantId: string) {
|
||||
try {
|
||||
const { client } = await this.getTwilioClient(tenantId);
|
||||
|
||||
// End the call
|
||||
await client.calls(callSid).update({
|
||||
status: 'completed',
|
||||
});
|
||||
|
||||
// Update database
|
||||
const tenantKnex = await this.tenantDbService.getTenantKnexById(tenantId);
|
||||
await tenantKnex('calls')
|
||||
.where({ call_sid: callSid })
|
||||
.update({
|
||||
status: 'canceled',
|
||||
updated_at: tenantKnex.fn.now(),
|
||||
});
|
||||
|
||||
// Clean up state
|
||||
this.callStates.delete(callSid);
|
||||
|
||||
this.logger.log(`Call rejected: ${callSid}`);
|
||||
} catch (error) {
|
||||
this.logger.error('Failed to reject call', error);
|
||||
throw error;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* End active call
|
||||
*/
|
||||
async endCall(callSid: string, tenantId: string) {
|
||||
try {
|
||||
const { client } = await this.getTwilioClient(tenantId);
|
||||
|
||||
// End the call
|
||||
await client.calls(callSid).update({
|
||||
status: 'completed',
|
||||
});
|
||||
|
||||
// Clean up OpenAI connection if exists
|
||||
const openaiWs = this.openaiConnections.get(callSid);
|
||||
if (openaiWs) {
|
||||
openaiWs.close();
|
||||
this.openaiConnections.delete(callSid);
|
||||
}
|
||||
|
||||
// Update database
|
||||
const tenantKnex = await this.tenantDbService.getTenantKnexById(tenantId);
|
||||
await tenantKnex('calls')
|
||||
.where({ call_sid: callSid })
|
||||
.update({
|
||||
status: 'completed',
|
||||
ended_at: tenantKnex.fn.now(),
|
||||
updated_at: tenantKnex.fn.now(),
|
||||
});
|
||||
|
||||
// Clean up state
|
||||
this.callStates.delete(callSid);
|
||||
|
||||
this.logger.log(`Call ended: ${callSid}`);
|
||||
} catch (error) {
|
||||
this.logger.error('Failed to end call', error);
|
||||
throw error;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Send DTMF tones
|
||||
*/
|
||||
async sendDtmf(callSid: string, digit: string, tenantId: string) {
|
||||
try {
|
||||
const { client } = await this.getTwilioClient(tenantId);
|
||||
|
||||
// Twilio doesn't support sending DTMF directly via API
|
||||
// This would need to be handled via TwiML <Play> of DTMF tones
|
||||
this.logger.log(`DTMF requested for call ${callSid}: ${digit}`);
|
||||
|
||||
// TODO: Implement DTMF sending via TwiML update
|
||||
} catch (error) {
|
||||
this.logger.error('Failed to send DTMF', error);
|
||||
throw error;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Get call state
|
||||
*/
|
||||
async getCallState(callSid: string, tenantId: string) {
|
||||
// Try memory first
|
||||
if (this.callStates.has(callSid)) {
|
||||
return this.callStates.get(callSid);
|
||||
}
|
||||
|
||||
// Fallback to database
|
||||
const tenantKnex = await this.tenantDbService.getTenantKnexById(tenantId);
|
||||
const call = await tenantKnex('calls')
|
||||
.where({ call_sid: callSid })
|
||||
.first();
|
||||
|
||||
return call || null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Update call status from webhook
|
||||
*/
|
||||
async updateCallStatus(params: {
|
||||
callSid: string;
|
||||
tenantId: string;
|
||||
status: string;
|
||||
duration?: number;
|
||||
recordingUrl?: string;
|
||||
}) {
|
||||
const { callSid, tenantId, status, duration, recordingUrl } = params;
|
||||
|
||||
try {
|
||||
const tenantKnex = await this.tenantDbService.getTenantKnexById(tenantId);
|
||||
|
||||
const updateData: any = {
|
||||
status,
|
||||
updated_at: tenantKnex.fn.now(),
|
||||
};
|
||||
|
||||
if (duration !== undefined) {
|
||||
updateData.duration_seconds = duration;
|
||||
}
|
||||
|
||||
if (recordingUrl) {
|
||||
updateData.recording_url = recordingUrl;
|
||||
}
|
||||
|
||||
if (status === 'completed') {
|
||||
updateData.ended_at = tenantKnex.fn.now();
|
||||
}
|
||||
|
||||
await tenantKnex('calls')
|
||||
.where({ call_sid: callSid })
|
||||
.update(updateData);
|
||||
|
||||
// Update state
|
||||
const state = this.callStates.get(callSid);
|
||||
if (state) {
|
||||
this.callStates.set(callSid, { ...state, status });
|
||||
}
|
||||
|
||||
this.logger.log(`Call status updated: ${callSid} -> ${status}`);
|
||||
} catch (error) {
|
||||
this.logger.error('Failed to update call status', error);
|
||||
throw error;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Initialize OpenAI Realtime connection for call
|
||||
*/
|
||||
async initializeOpenAIRealtime(params: {
|
||||
callSid: string;
|
||||
tenantId: string;
|
||||
userId: string;
|
||||
}) {
|
||||
const { callSid, tenantId, userId } = params;
|
||||
|
||||
try {
|
||||
// Get OpenAI config - tenantId might be a domain, so look it up
|
||||
const centralPrisma = getCentralPrisma();
|
||||
|
||||
// Try to find tenant by domain first (if tenantId is like "tenant1")
|
||||
let tenant;
|
||||
if (!tenantId.match(/^[0-9a-f]{8}-[0-9a-f]{4}-/i)) {
|
||||
// Looks like a domain, not a UUID
|
||||
const domainRecord = await centralPrisma.domain.findUnique({
|
||||
where: { domain: tenantId },
|
||||
include: { tenant: { select: { id: true, integrationsConfig: true } } },
|
||||
});
|
||||
tenant = domainRecord?.tenant;
|
||||
} else {
|
||||
// It's a UUID
|
||||
tenant = await centralPrisma.tenant.findUnique({
|
||||
where: { id: tenantId },
|
||||
select: { id: true, integrationsConfig: true },
|
||||
});
|
||||
}
|
||||
|
||||
if (!tenant) {
|
||||
this.logger.warn(`Tenant not found for identifier: ${tenantId}`);
|
||||
return;
|
||||
}
|
||||
|
||||
const config = this.getIntegrationConfig(tenant?.integrationsConfig as any);
|
||||
|
||||
if (!config.openai?.apiKey) {
|
||||
this.logger.warn('OpenAI not configured for tenant, skipping AI features');
|
||||
return;
|
||||
}
|
||||
|
||||
// Connect to OpenAI Realtime API
|
||||
const model = config.openai.model || 'gpt-4o-realtime-preview-2024-10-01';
|
||||
const ws = new WebSocket(`wss://api.openai.com/v1/realtime?model=${model}`, {
|
||||
headers: {
|
||||
'Authorization': `Bearer ${config.openai.apiKey}`,
|
||||
'OpenAI-Beta': 'realtime=v1',
|
||||
},
|
||||
});
|
||||
|
||||
ws.on('open', () => {
|
||||
this.logger.log(`OpenAI Realtime connected for call ${callSid}`);
|
||||
|
||||
// Add to connections map only after it's open
|
||||
this.openaiConnections.set(callSid, ws);
|
||||
|
||||
// Store call state with userId for later use
|
||||
this.callStates.set(callSid, {
|
||||
callSid,
|
||||
tenantId: tenant.id,
|
||||
userId,
|
||||
status: 'in-progress',
|
||||
});
|
||||
this.logger.log(`📝 Stored call state for ${callSid} with userId: ${userId}`);
|
||||
|
||||
// Initialize session
|
||||
ws.send(JSON.stringify({
|
||||
type: 'session.update',
|
||||
session: {
|
||||
model: config.openai.model || 'gpt-4o-realtime-preview',
|
||||
voice: config.openai.voice || 'alloy',
|
||||
instructions: `You are an AI assistant in LISTENING MODE, helping a sales/support agent during their phone call.
|
||||
|
||||
IMPORTANT: You are NOT talking to the caller. You are advising the agent who is handling the call.
|
||||
|
||||
Your role:
|
||||
- Listen to the conversation between the agent and the caller
|
||||
- Provide concise, actionable suggestions to help the agent
|
||||
- Recommend CRM actions (search contacts, create tasks, update records)
|
||||
- Alert the agent to important information or next steps
|
||||
- Keep suggestions brief (1-2 sentences max)
|
||||
|
||||
Format your suggestions like:
|
||||
"💡 Suggestion: [your advice]"
|
||||
"⚠️ Alert: [important notice]"
|
||||
"📋 Action: [recommended CRM action]"`,
|
||||
turn_detection: {
|
||||
type: 'server_vad',
|
||||
},
|
||||
tools: this.getOpenAITools(),
|
||||
},
|
||||
}));
|
||||
});
|
||||
|
||||
ws.on('message', (data: Buffer) => {
|
||||
// Pass the tenant UUID (tenant.id) instead of the domain string
|
||||
this.handleOpenAIMessage(callSid, tenant.id, userId, JSON.parse(data.toString()));
|
||||
});
|
||||
|
||||
ws.on('error', (error) => {
|
||||
this.logger.error(`OpenAI WebSocket error for call ${callSid}:`, error);
|
||||
this.openaiConnections.delete(callSid);
|
||||
});
|
||||
|
||||
ws.on('close', (code, reason) => {
|
||||
this.logger.log(`OpenAI Realtime disconnected for call ${callSid} - Code: ${code}, Reason: ${reason.toString()}`);
|
||||
this.openaiConnections.delete(callSid);
|
||||
});
|
||||
|
||||
// Don't add to connections here - wait for 'open' event
|
||||
} catch (error) {
|
||||
this.logger.error('Failed to initialize OpenAI Realtime', error);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Send audio data to OpenAI Realtime API
|
||||
*/
|
||||
async sendAudioToOpenAI(callSid: string, audioBase64: string) {
|
||||
const ws = this.openaiConnections.get(callSid);
|
||||
|
||||
if (!ws) {
|
||||
this.logger.warn(`No OpenAI connection for call ${callSid}`);
|
||||
return;
|
||||
}
|
||||
|
||||
try {
|
||||
// Send audio chunk to OpenAI
|
||||
ws.send(JSON.stringify({
|
||||
type: 'input_audio_buffer.append',
|
||||
audio: audioBase64,
|
||||
}));
|
||||
} catch (error) {
|
||||
this.logger.error(`Failed to send audio to OpenAI for call ${callSid}`, error);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Commit audio buffer to OpenAI (trigger processing)
|
||||
*/
|
||||
async commitAudioBuffer(callSid: string) {
|
||||
const ws = this.openaiConnections.get(callSid);
|
||||
|
||||
if (!ws) {
|
||||
return;
|
||||
}
|
||||
|
||||
try {
|
||||
ws.send(JSON.stringify({
|
||||
type: 'input_audio_buffer.commit',
|
||||
}));
|
||||
} catch (error) {
|
||||
this.logger.error(`Failed to commit audio buffer for call ${callSid}`, error);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Clean up OpenAI connection for a call
|
||||
*/
|
||||
async cleanupOpenAIConnection(callSid: string) {
|
||||
const ws = this.openaiConnections.get(callSid);
|
||||
|
||||
if (ws) {
|
||||
try {
|
||||
ws.close();
|
||||
this.openaiConnections.delete(callSid);
|
||||
this.logger.log(`Cleaned up OpenAI connection for call ${callSid}`);
|
||||
} catch (error) {
|
||||
this.logger.error(`Error cleaning up OpenAI connection for call ${callSid}`, error);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Handle OpenAI Realtime messages
|
||||
*/
|
||||
private async handleOpenAIMessage(
|
||||
callSid: string,
|
||||
tenantId: string,
|
||||
userId: string,
|
||||
message: any,
|
||||
) {
|
||||
try {
|
||||
switch (message.type) {
|
||||
case 'conversation.item.created':
|
||||
// Skip logging for now
|
||||
break;
|
||||
|
||||
case 'response.audio.delta':
|
||||
// OpenAI is sending audio response (skip logging)
|
||||
const state = this.callStates.get(callSid);
|
||||
if (state?.streamSid && message.delta) {
|
||||
if (!state.pendingAudio) {
|
||||
state.pendingAudio = [];
|
||||
}
|
||||
state.pendingAudio.push(message.delta);
|
||||
}
|
||||
break;
|
||||
|
||||
case 'response.audio.done':
|
||||
// Skip logging
|
||||
break;
|
||||
|
||||
case 'response.audio_transcript.delta':
|
||||
// Skip - not transmitting individual words to frontend
|
||||
break;
|
||||
|
||||
case 'response.audio_transcript.done':
|
||||
// Final transcript - this contains the AI's actual text suggestions!
|
||||
const transcript = message.transcript;
|
||||
this.logger.log(`💡 AI Suggestion: "${transcript}"`);
|
||||
|
||||
// Save to database
|
||||
await this.updateCallTranscript(callSid, tenantId, transcript);
|
||||
|
||||
// Also send as suggestion to frontend if it looks like a suggestion
|
||||
if (transcript && transcript.length > 0) {
|
||||
// Determine suggestion type
|
||||
let suggestionType: 'response' | 'action' | 'insight' = 'insight';
|
||||
if (transcript.includes('💡') || transcript.toLowerCase().includes('suggest')) {
|
||||
suggestionType = 'response';
|
||||
} else if (transcript.includes('📋') || transcript.toLowerCase().includes('action')) {
|
||||
suggestionType = 'action';
|
||||
} else if (transcript.includes('⚠️') || transcript.toLowerCase().includes('alert')) {
|
||||
suggestionType = 'insight';
|
||||
}
|
||||
|
||||
// Emit to frontend
|
||||
const state = this.callStates.get(callSid);
|
||||
this.logger.log(`📊 Call state - userId: ${state?.userId}, gateway: ${!!this.voiceGateway}`);
|
||||
|
||||
if (state?.userId && this.voiceGateway) {
|
||||
this.logger.log(`📤 Sending to user ${state.userId}`);
|
||||
await this.voiceGateway.notifyAiSuggestion(state.userId, {
|
||||
type: suggestionType,
|
||||
text: transcript,
|
||||
callSid,
|
||||
timestamp: new Date().toISOString(),
|
||||
});
|
||||
this.logger.log(`✅ Suggestion sent to agent`);
|
||||
} else {
|
||||
this.logger.warn(`❌ Cannot send - userId: ${state?.userId}, gateway: ${!!this.voiceGateway}, callStates has ${this.callStates.size} entries`);
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case 'response.function_call_arguments.done':
|
||||
// Tool call completed
|
||||
await this.handleToolCall(callSid, tenantId, userId, message);
|
||||
break;
|
||||
|
||||
case 'session.created':
|
||||
case 'session.updated':
|
||||
case 'response.created':
|
||||
case 'response.output_item.added':
|
||||
case 'response.content_part.added':
|
||||
case 'response.content_part.done':
|
||||
case 'response.output_item.done':
|
||||
case 'response.done':
|
||||
case 'input_audio_buffer.speech_started':
|
||||
case 'input_audio_buffer.speech_stopped':
|
||||
case 'input_audio_buffer.committed':
|
||||
// Skip logging for these (too noisy)
|
||||
break;
|
||||
|
||||
case 'error':
|
||||
this.logger.error(`OpenAI error for call ${callSid}: ${JSON.stringify(message.error)}`);
|
||||
break;
|
||||
|
||||
default:
|
||||
// Only log unhandled types occasionally
|
||||
break;
|
||||
}
|
||||
} catch (error) {
|
||||
this.logger.error('Failed to handle OpenAI message', error);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Define OpenAI tools for CRM actions
|
||||
*/
|
||||
private getOpenAITools(): any[] {
|
||||
return [
|
||||
{
|
||||
type: 'function',
|
||||
name: 'search_contact',
|
||||
description: 'Search for a contact by name, email, or phone number',
|
||||
parameters: {
|
||||
type: 'object',
|
||||
properties: {
|
||||
query: {
|
||||
type: 'string',
|
||||
description: 'Search query (name, email, or phone)',
|
||||
},
|
||||
},
|
||||
required: ['query'],
|
||||
},
|
||||
},
|
||||
{
|
||||
type: 'function',
|
||||
name: 'create_task',
|
||||
description: 'Create a follow-up task based on the call',
|
||||
parameters: {
|
||||
type: 'object',
|
||||
properties: {
|
||||
title: {
|
||||
type: 'string',
|
||||
description: 'Task title',
|
||||
},
|
||||
description: {
|
||||
type: 'string',
|
||||
description: 'Task description',
|
||||
},
|
||||
dueDate: {
|
||||
type: 'string',
|
||||
description: 'Due date (ISO format)',
|
||||
},
|
||||
},
|
||||
required: ['title'],
|
||||
},
|
||||
},
|
||||
{
|
||||
type: 'function',
|
||||
name: 'update_contact',
|
||||
description: 'Update contact information',
|
||||
parameters: {
|
||||
type: 'object',
|
||||
properties: {
|
||||
contactId: {
|
||||
type: 'string',
|
||||
description: 'Contact ID',
|
||||
},
|
||||
fields: {
|
||||
type: 'object',
|
||||
description: 'Fields to update',
|
||||
},
|
||||
},
|
||||
required: ['contactId', 'fields'],
|
||||
},
|
||||
},
|
||||
];
|
||||
}
|
||||
|
||||
/**
|
||||
* Handle tool calls from OpenAI
|
||||
*/
|
||||
private async handleToolCall(
|
||||
callSid: string,
|
||||
tenantId: string,
|
||||
userId: string,
|
||||
message: any,
|
||||
) {
|
||||
// TODO: Implement actual tool execution
|
||||
// This would call the appropriate services based on the tool name
|
||||
// Respecting RBAC permissions for the user
|
||||
this.logger.log(`Tool call for call ${callSid}: ${message.name}`);
|
||||
}
|
||||
|
||||
/**
|
||||
* Update call transcript
|
||||
*/
|
||||
private async updateCallTranscript(
|
||||
callSid: string,
|
||||
tenantId: string,
|
||||
transcript: string,
|
||||
) {
|
||||
try {
|
||||
const tenantKnex = await this.tenantDbService.getTenantKnexById(tenantId);
|
||||
await tenantKnex('calls')
|
||||
.where({ call_sid: callSid })
|
||||
.update({
|
||||
ai_transcript: transcript,
|
||||
updated_at: tenantKnex.fn.now(),
|
||||
});
|
||||
} catch (error) {
|
||||
this.logger.error('Failed to update transcript', error);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Get call history for user
|
||||
*/
|
||||
async getCallHistory(tenantId: string, userId: string, limit = 50) {
|
||||
try {
|
||||
const tenantKnex = await this.tenantDbService.getTenantKnexById(tenantId);
|
||||
const calls = await tenantKnex('calls')
|
||||
.where({ user_id: userId })
|
||||
.orderBy('created_at', 'desc')
|
||||
.limit(limit);
|
||||
|
||||
return calls;
|
||||
} catch (error) {
|
||||
this.logger.error('Failed to get call history', error);
|
||||
throw error;
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user