WIP - fix twilio functionality now that we use BFF

backend/src/voice/voice.service.ts

@@ -31,46 +31,46 @@ export class VoiceService {
   /**
    * Get Twilio client for a tenant
    */
-  private async getTwilioClient(tenantIdOrDomain: string): Promise<{ client: Twilio.Twilio; config: TwilioConfig; tenantId: string }> {
+  private async getTwilioClient(tenantId: string): Promise<{ client: Twilio.Twilio; config: TwilioConfig; tenantId: string }> {
     // Check cache first
-    if (this.twilioClients.has(tenantIdOrDomain)) {
+    if (this.twilioClients.has(tenantId)) {
       const centralPrisma = getCentralPrisma();
       
-      // Look up tenant by domain
-      const domainRecord = await centralPrisma.domain.findUnique({
-        where: { domain: tenantIdOrDomain },
-        include: { tenant: { select: { id: true, integrationsConfig: true } } },
+      // Look up tenant by ID
+      const tenant = await centralPrisma.tenant.findUnique({
+        where: { id: tenantId },
+        select: { id: true, integrationsConfig: true },
       });
 
-      const config = this.getIntegrationConfig(domainRecord?.tenant?.integrationsConfig as any);
+      const config = this.getIntegrationConfig(tenant?.integrationsConfig as any);
       return { 
-        client: this.twilioClients.get(tenantIdOrDomain), 
+        client: this.twilioClients.get(tenantId), 
         config: config.twilio,
-        tenantId: domainRecord.tenant.id 
+        tenantId: tenant.id 
       };
     }
 
     // Fetch tenant integrations config
     const centralPrisma = getCentralPrisma();
     
-    this.logger.log(`Looking up domain: ${tenantIdOrDomain}`);
+    this.logger.log(`Looking up tenant: ${tenantId}`);
     
-    const domainRecord = await centralPrisma.domain.findUnique({
-      where: { domain: tenantIdOrDomain },
-      include: { tenant: { select: { id: true, integrationsConfig: true } } },
+    const tenant = await centralPrisma.tenant.findUnique({
+      where: { id: tenantId },
+      select: { id: true, integrationsConfig: true },
     });
 
-    this.logger.log(`Domain record found: ${!!domainRecord}, Tenant: ${!!domainRecord?.tenant}, Config: ${!!domainRecord?.tenant?.integrationsConfig}`);
+    this.logger.log(`Tenant found: ${!!tenant}, Config: ${!!tenant?.integrationsConfig}`);
 
-    if (!domainRecord?.tenant) {
-      throw new Error(`Domain ${tenantIdOrDomain} not found`);
+    if (!tenant) {
+      throw new Error(`Tenant ${tenantId} not found`);
     }
 
-    if (!domainRecord.tenant.integrationsConfig) {
+    if (!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);
+    const config = this.getIntegrationConfig(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}`);
 
@@ -79,9 +79,9 @@ export class VoiceService {
     }
 
     const client = Twilio.default(config.twilio.accountSid, config.twilio.authToken);
-    this.twilioClients.set(tenantIdOrDomain, client);
+    this.twilioClients.set(tenantId, client);
 
-    return { client, config: config.twilio, tenantId: domainRecord.tenant.id };
+    return { client, config: config.twilio, tenantId: tenant.id };
   }
 
   /**
@@ -105,22 +105,64 @@ export class VoiceService {
     return {};
   }
 
+  /**
+   * Find tenant by their configured Twilio phone number
+   * Used for inbound call routing
+   */
+  async findTenantByPhoneNumber(phoneNumber: string): Promise<{ tenantId: string; config: TwilioConfig } | null> {
+    const centralPrisma = getCentralPrisma();
+    
+    // Normalize phone number (remove spaces, ensure + prefix for comparison)
+    const normalizedPhone = phoneNumber.replace(/\s+/g, '').replace(/^(\d)/, '+$1');
+    
+    this.logger.log(`Looking up tenant by phone number: ${normalizedPhone}`);
+    
+    // Get all tenants with integrations config
+    const tenants = await centralPrisma.tenant.findMany({
+      where: {
+        integrationsConfig: { not: null },
+      },
+      select: { id: true, integrationsConfig: true },
+    });
+
+    for (const tenant of tenants) {
+      const config = this.getIntegrationConfig(tenant.integrationsConfig as any);
+      if (config.twilio?.phoneNumber) {
+        const tenantPhone = config.twilio.phoneNumber.replace(/\s+/g, '').replace(/^(\d)/, '+$1');
+        if (tenantPhone === normalizedPhone) {
+          this.logger.log(`Found tenant ${tenant.id} for phone number ${normalizedPhone}`);
+          return { tenantId: tenant.id, config: config.twilio };
+        }
+      }
+    }
+
+    this.logger.warn(`No tenant found for phone number: ${normalizedPhone}`);
+    return null;
+  }
+
   /**
    * Generate Twilio access token for browser Voice SDK
    */
-  async generateAccessToken(tenantDomain: string, userId: string): Promise<string> {
-    const { config, tenantId } = await this.getTwilioClient(tenantDomain);
+  async generateAccessToken(tenantId: string, userId: string): Promise<string> {
+    const { config, tenantId: resolvedTenantId } = await this.getTwilioClient(tenantId);
 
     if (!config.accountSid || !config.apiKey || !config.apiSecret) {
       throw new Error('Twilio API credentials not configured. Please add API Key and Secret in Settings > Integrations');
     }
 
+    // Include tenantId in the identity so we can extract it in TwiML webhooks
+    // Format: tenantId:userId
+    const identity = `${resolvedTenantId}:${userId}`;
+    
+    this.logger.log(`Generating access token with identity: ${identity}`);
+    this.logger.log(`  Input tenantId: ${tenantId}, Resolved tenantId: ${resolvedTenantId}, userId: ${userId}`);
+
     // Create an access token
     const token = new AccessToken(
       config.accountSid,
       config.apiKey,
       config.apiSecret,
-      { identity: userId, ttl: 3600 } // 1 hour expiry
+      { identity, ttl: 3600 } // 1 hour expiry
     );
 
     // Create a Voice grant