Moved OTP to SMS module

src/sms-orchestration/otp-generator.service.ts

@@ -0,0 +1,16 @@
+import { Injectable } from "@nestjs/common";
+const crypto = require("node:crypto");
+
+@Injectable()
+export class OtpGeneratorService {
+  createDigit(digits: number): string {
+    const max = Math.pow(10, digits);
+    const randomBytes = crypto.randomBytes(Math.ceil(digits / 2));
+    const randomNumber = parseInt(randomBytes.toString("hex"), 16) % max;
+    return randomNumber.toString().padStart(digits, "0");
+  }
+
+  create() {
+    return this.createDigit(5);
+  }
+}

src/sms-orchestration/sms-orchestration.module.ts

@@ -3,6 +3,7 @@ import { MongooseModule } from "@nestjs/mongoose";
 import { SmsTextDbService } from "./entities/db-service/sms-text.db.service";
 import { SmsText, SmsTextSchema } from "./entities/schema/sms-text.schema";
 import { SmsGatewayModule } from "./provider/sms-gateway.module";
+import { OtpGeneratorService } from "./otp-generator.service";
 import { SmsOrchestrationService } from "./sms-orchestration.service";
 
 @Module({
@@ -10,7 +11,7 @@ import { SmsOrchestrationService } from "./sms-orchestration.service";
     SmsGatewayModule,
     MongooseModule.forFeature([{ name: SmsText.name, schema: SmsTextSchema }]),
   ],
-  providers: [SmsTextDbService, SmsOrchestrationService],
-  exports: [SmsOrchestrationService],
+  providers: [SmsTextDbService, SmsOrchestrationService, OtpGeneratorService],
+  exports: [SmsOrchestrationService, OtpGeneratorService],
 })
 export class SmsOrchestrationModule {}