Productionize EventSphere platform

apps/api/src/modules/qrcode/qrcode.service.ts

@@ -0,0 +1,52 @@
+import { Injectable, NotFoundException } from "@nestjs/common";
+import QR from "qrcode";
+import { PrismaService } from "../../prisma/prisma.service";
+
+@Injectable()
+export class QrcodeService {
+  constructor(private readonly prisma: PrismaService) {}
+
+  findAll(tenantId: string) {
+    return this.prisma.qRCode.findMany({
+      where: { tenantId },
+      orderBy: { createdAt: "desc" },
+      include: {
+        registration: { include: { attendee: true, event: true } }
+      }
+    });
+  }
+
+  async createForRegistration(tenantId: string, registrationId: string) {
+    const registration = await this.prisma.registration.findFirst({
+      where: { id: registrationId, tenantId },
+      include: { attendee: true, event: true }
+    });
+    if (!registration) throw new NotFoundException("Registration not found");
+
+    const payload = {
+      code: registration.code,
+      eventId: registration.eventId,
+      tenantId: registration.tenantId,
+      registrationId: registration.id
+    };
+
+    const qrCode = await this.prisma.qRCode.upsert({
+      where: { registrationId: registration.id },
+      create: {
+        tenantId,
+        registrationId: registration.id,
+        code: registration.code,
+        payload
+      },
+      update: {
+        code: registration.code,
+        payload,
+        status: "active"
+      },
+      include: { registration: { include: { attendee: true, event: true } } }
+    });
+
+    const dataUrl = await QR.toDataURL(JSON.stringify(payload), { errorCorrectionLevel: "M", margin: 1, width: 320 });
+    return { qrCode, dataUrl };
+  }
+}