huge refactor done

libs/core/di/src/container/builder.ts

@@ -149,7 +149,12 @@ export class ServiceContainerBuilder {
     // Register handler infrastructure first
     container.register({
       handlerRegistry: asClass(HandlerRegistry).singleton(),
-      handlerScanner: asClass(HandlerScanner).singleton(),
+      handlerScanner: asFunction(({ handlerRegistry }) => {
+        return new HandlerScanner(handlerRegistry, container, {
+          serviceName: config.service?.serviceName || config.service?.name,
+          autoRegister: true,
+        });
+      }).singleton(),
     });
 
     registerCoreServices(container, config);
@@ -177,7 +182,7 @@ export class ServiceContainerBuilder {
           globalCache,
           proxy: proxyManager, // Map proxyManager to proxy
           browser,
-          queue: queueManager, // Map queueManager to queue
+          queueManager, // Provide queueManager directly
           mongodb: mongoClient, // Map mongoClient to mongodb
           postgres: postgresClient, // Map postgresClient to postgres
           questdb: questdbClient, // Map questdbClient to questdb

libs/core/di/src/registrations/service.registration.ts

@@ -76,7 +76,7 @@ export function registerApplicationServices(
             defaultJobOptions: config.queue!.defaultJobOptions,
           },
           enableScheduledJobs: config.queue!.enableScheduledJobs ?? true,
-          delayWorkerStart: config.queue!.delayWorkerStart ?? false,
+          delayWorkerStart: config.queue!.delayWorkerStart ?? true, // Changed to true so ServiceApplication can start workers
           autoDiscoverHandlers: true,
         };
         return new SmartQueueManager(queueConfig, handlerRegistry, logger);

libs/core/di/src/scanner/handler-scanner.ts

@@ -3,7 +3,7 @@
  * Discovers and registers handlers with the DI container
  */
 
-import { asClass, type AwilixContainer } from 'awilix';
+import { asClass, asFunction, type AwilixContainer } from 'awilix';
 import { glob } from 'glob';
 import type {
   HandlerConfiguration,
@@ -157,7 +157,9 @@ export class HandlerScanner {
     // Register with DI container if auto-register is enabled
     if (this.options.autoRegister !== false) {
       this.container.register({
-        [handlerName]: asClass(HandlerClass).singleton(),
+        [handlerName]: asFunction(({ serviceContainer }) => {
+          return new HandlerClass(serviceContainer);
+        }).singleton(),
       });
     }
 

libs/core/di/src/service-application.ts

@@ -278,7 +278,11 @@ export class ServiceApplication {
       // Initialize handlers if enabled
       if (this.serviceConfig.enableHandlers && handlerInitializer) {
         this.logger.debug('Initializing handlers...');
-        await handlerInitializer(this.serviceContainer);
+        // Pass the service container with the DI container attached
+        const containerWithDI = Object.assign({}, this.serviceContainer, { 
+          _diContainer: this.container 
+        });
+        await handlerInitializer(containerWithDI);
         this.logger.info('Handlers initialized');
       }
 
@@ -335,6 +339,8 @@ export class ServiceApplication {
     this.logger.debug('Creating scheduled jobs from registered handlers...');
     const handlerRegistry = this.container.resolve<HandlerRegistry>('handlerRegistry');
     const allHandlers = handlerRegistry.getAllHandlersWithSchedule();
+    
+    this.logger.info(`Found ${allHandlers.size} handlers with scheduled jobs: ${Array.from(allHandlers.keys()).join(', ')}`);
 
     let totalScheduledJobs = 0;
     for (const [handlerName, config] of allHandlers) {
@@ -356,7 +362,16 @@ export class ServiceApplication {
           this.logger.error('Queue manager is not initialized, cannot create scheduled jobs');
           continue;
         }
-        const queue = queueManager.getQueue(handlerName);
+        // Pass the handler registry explicitly when creating queues for scheduled jobs
+        this.logger.debug('Creating queue for scheduled jobs', {
+          handlerName,
+          hasHandlerRegistry: !!handlerRegistry,
+          registeredHandlers: handlerRegistry.getHandlerNames(),
+        });
+        
+        const queue = queueManager.getQueue(handlerName, {
+          handlerRegistry: handlerRegistry
+        });
 
         for (const scheduledJob of config.scheduledJobs) {
           // Include handler and operation info in job data
@@ -375,6 +390,12 @@ export class ServiceApplication {
             },
           };
 
+          this.logger.debug('Adding scheduled job', {
+            handler: handlerName,
+            operation: scheduledJob.operation,
+            hasOperation: !!handlerRegistry.getOperation(handlerName, scheduledJob.operation),
+          });
+          
           await queue.addScheduledJob(
             scheduledJob.operation,
             jobData,