sending the connection interest count and generating the activity ref number

src/modules/host/services/host.service.ts

@@ -61,7 +61,8 @@ interface HostDocumentInput {
 export async function generateActivityRefNumber(
   tx: any,
   hostXid: number,
-  activityTypeXid: number
+  activityTypeXid: number,
+  hostRefNumber: string
 ) {
   // 1️⃣ Get ActivityType with Interest
   const activityType = await tx.activityTypes.findUnique({
@@ -131,7 +132,7 @@ export async function generateActivityRefNumber(
 
   const nextActivityTypeSequence = activityTypeCount + 1;
 
-  return `E-${interestCode}${String(interestSequence).padStart(
+  return `${hostRefNumber}-E-${interestCode}${String(interestSequence).padStart(
     3,
     "0"
   )}-${String(nextActivityTypeSequence).padStart(2, "0")}`;
@@ -2763,6 +2764,18 @@ export class HostService {
     frequenciesXid: number,
   ) {
     return await this.prisma.$transaction(async (tx) => {
+
+      const hostUserDetail = await tx.user.findFirst({
+        where: { id: userId, isActive: true},
+        select: {
+          id: true,
+          userRefNumber: true,
+        }
+      })
+
+      if(!hostUserDetail) {
+        throw new ApiError(404, 'User not found');
+      }
       const host = await tx.hostHeader.findFirst({
         where: { userXid: userId, isActive: true },
       });
@@ -2770,6 +2783,10 @@ export class HostService {
 
       const activityType = await tx.activityTypes.findUnique({
         where: { id: activityTypeXid },
+        include: {
+    interests: true,      // ✅ correct
+    energyLevel: true,    // ✅ this is correct already
+  },
       });
       if (!activityType) throw new ApiError(404, 'Activity type not found');
 
@@ -2780,7 +2797,7 @@ export class HostService {
         if (!freq) throw new ApiError(404, 'Frequency not found');
       }
 
-      const referenceNumber = await generateActivityRefNumber(tx, host.id, activityTypeXid);
+      const referenceNumber = await generateActivityRefNumber(tx, host.id, activityTypeXid, hostUserDetail.userRefNumber);
 
       const created = await tx.activities.create({
         data: {