feat: add application queue priority routing

api/src/sms-config/sms-config.service.ts

@@ -10,6 +10,7 @@ export interface CreateSmsApplicationDto {
   callbackUrl?: string;
   dailyLimit?: number;
   customerUnitPrice?: number;
+  queuePriority?: string;
   maxPhonesPerTask?: number;
   templateMismatchMode?: string;
   ipAllowlist?: string[];
@@ -85,6 +86,9 @@ export interface ApplicationListQuery {
   includeConnections?: boolean;
 }
 
+const APPLICATION_QUEUE_PRIORITIES = ['normal', 'priority'] as const;
+type ApplicationQueuePriority = typeof APPLICATION_QUEUE_PRIORITIES[number];
+
 @Injectable()
 export class SmsConfigService {
   constructor(private readonly prisma: PrismaService) {}
@@ -148,6 +152,7 @@ export class SmsConfigService {
 
   createApplication(data: CreateSmsApplicationDto) {
     const secret = randomBytes(24).toString('hex');
+    const queuePriority = normalizeApplicationQueuePriority(data.queuePriority);
     return this.prisma.smsApplication.create({
       data: {
         tenantId: data.tenantId,
@@ -157,6 +162,7 @@ export class SmsConfigService {
         secretHash: hashSecret(secret),
         dailyLimit: data.dailyLimit,
         customerUnitPrice: data.customerUnitPrice ?? 0,
+        queuePriority,
         maxPhonesPerTask: data.maxPhonesPerTask ?? 1000000,
         templateMismatchMode: data.templateMismatchMode ?? 'reject',
         ipAllowlist: {
@@ -172,6 +178,9 @@ export class SmsConfigService {
     if (!application) {
       throw new NotFoundException('Application not found');
     }
+    const queuePriority = data.queuePriority === undefined
+      ? undefined
+      : normalizeApplicationQueuePriority(data.queuePriority);
 
     return this.prisma.$transaction(async (tx) => {
       if (data.ipAllowlist) {
@@ -185,6 +194,7 @@ export class SmsConfigService {
           callbackUrl: data.callbackUrl,
           dailyLimit: data.dailyLimit,
           customerUnitPrice: data.customerUnitPrice,
+          queuePriority,
           maxPhonesPerTask: data.maxPhonesPerTask,
           templateMismatchMode: data.templateMismatchMode,
           status: data.status,
@@ -738,6 +748,14 @@ function startOfToday() {
   return date;
 }
 
+function normalizeApplicationQueuePriority(value?: string): ApplicationQueuePriority {
+  const queuePriority = value ?? 'normal';
+  if (!APPLICATION_QUEUE_PRIORITIES.includes(queuePriority as ApplicationQueuePriority)) {
+    throw new BadRequestException('queuePriority must be normal or priority');
+  }
+  return queuePriority as ApplicationQueuePriority;
+}
+
 function normalizeApplicationCmppStatus(connections: Array<{ status: string; currentConnections: number }>, applicationStatus: string) {
   if (applicationStatus !== 'active') {
     return 'inactive';