feat: complete cmpp gateway delivery recovery workflows

api/src/channels/channels.service.ts

@@ -20,6 +20,8 @@ export interface CreateChannelDto {
   rateLimitPerSecond?: number;
   unitPrice?: number;
   status?: string;
+  desiredConnections?: number;
+  windowSize?: number;
   config?: Record<string, unknown>;
 }
 
@@ -196,6 +198,7 @@ export class ChannelsService implements OnModuleInit, OnModuleDestroy {
     if (!Number.isInteger(gatewayPort) || gatewayPort <= 0 || gatewayPort > 65535) {
       throw new BadRequestException('gatewayPort must be an integer between 1 and 65535');
     }
+    const config = normalizeChannelRuntimeConfig(data.config, data.desiredConnections, data.windowSize);
     const channel = await this.prisma.smsChannel.create({
       data: {
         code: data.code,
@@ -213,7 +216,7 @@ export class ChannelsService implements OnModuleInit, OnModuleDestroy {
         rateLimitPerSecond: data.rateLimitPerSecond ?? 100,
         unitPrice: data.unitPrice ?? 0,
         status: data.status ?? 'active',
-        config: data.config as Prisma.InputJsonValue | undefined,
+        config: config as Prisma.InputJsonValue,
       },
     });
     if (channel.status === 'active') {
@@ -231,6 +234,9 @@ export class ChannelsService implements OnModuleInit, OnModuleDestroy {
     if (gatewayPort !== undefined && (!Number.isInteger(gatewayPort) || gatewayPort <= 0 || gatewayPort > 65535)) {
       throw new BadRequestException('gatewayPort must be an integer between 1 and 65535');
     }
+    const config = data.config !== undefined || data.desiredConnections !== undefined || data.windowSize !== undefined
+      ? normalizeChannelRuntimeConfig(channel.config, data.desiredConnections, data.windowSize)
+      : undefined;
     const updated = await this.prisma.smsChannel.update({
       where: { id: channelId },
       data: {
@@ -249,7 +255,7 @@ export class ChannelsService implements OnModuleInit, OnModuleDestroy {
         rateLimitPerSecond: data.rateLimitPerSecond,
         unitPrice: data.unitPrice,
         status: data.status,
-        config: data.config as Prisma.InputJsonValue | undefined,
+        config: config as Prisma.InputJsonValue | undefined,
       },
     });
     await this.prisma.operationLog.create({
@@ -1105,6 +1111,26 @@ function getDesiredConnections(config?: Prisma.JsonValue | null) {
   return 1;
 }
 
+function normalizeChannelRuntimeConfig(config?: Prisma.JsonValue | Record<string, unknown> | null, desiredConnections?: number, windowSize?: number) {
+  const base = config && typeof config === 'object' && !Array.isArray(config)
+    ? { ...(config as Record<string, unknown>) }
+    : {};
+  base.desiredConnections = getPositiveRuntimeInteger(desiredConnections ?? base.desiredConnections, 1, 'desiredConnections');
+  base.windowSize = getPositiveRuntimeInteger(windowSize ?? base.windowSize, 16, 'windowSize');
+  return base;
+}
+
+function getPositiveRuntimeInteger(value: unknown, fallback: number, fieldName: string) {
+  if (value === undefined || value === null || value === '') {
+    return fallback;
+  }
+  const normalized = Number(value);
+  if (!Number.isInteger(normalized) || normalized <= 0) {
+    throw new BadRequestException(`${fieldName} must be a positive integer`);
+  }
+  return normalized;
+}
+
 function bullmqConnection() {
   const redisUrl = new URL(process.env.REDIS_URL ?? 'redis://127.0.0.1:6379');
   return {