fix(server): start job workers after DB (#17806)

Job workers are currently started on app init, which means they are started
before the DB is initialised. This can be problematic if jobs which need to use
the DB start running before it's ready. It also means that swapping out the
queue implementation for something which uses the DB won't work.

server/src/services/job.service.ts

@@ -1,10 +1,12 @@
 import { BadRequestException, Injectable } from '@nestjs/common';
+import { ClassConstructor } from 'class-transformer';
 import { snakeCase } from 'lodash';
 import { OnEvent } from 'src/decorators';
 import { mapAsset } from 'src/dtos/asset-response.dto';
 import { AllJobStatusResponseDto, JobCommandDto, JobCreateDto, JobStatusDto } from 'src/dtos/job.dto';
 import {
   AssetType,
+  BootstrapEventPriority,
   ImmichWorker,
   JobCommand,
   JobName,
@@ -51,6 +53,8 @@ const asJobItem = (dto: JobCreateDto): JobItem => {
 
 @Injectable()
 export class JobService extends BaseService {
+  private services: ClassConstructor<unknown>[] = [];
+
   @OnEvent({ name: 'config.init', workers: [ImmichWorker.MICROSERVICES] })
   onConfigInit({ newConfig: config }: ArgOf<'config.init'>) {
     this.logger.debug(`Updating queue concurrency settings`);
@@ -69,6 +73,18 @@ export class JobService extends BaseService {
     this.onConfigInit({ newConfig: config });
   }
 
+  @OnEvent({ name: 'app.bootstrap', priority: BootstrapEventPriority.JobService })
+  onBootstrap() {
+    this.jobRepository.setup(this.services);
+    if (this.worker === ImmichWorker.MICROSERVICES) {
+      this.jobRepository.startWorkers();
+    }
+  }
+
+  setServices(services: ClassConstructor<unknown>[]) {
+    this.services = services;
+  }
+
   async create(dto: JobCreateDto): Promise<void> {
     await this.jobRepository.queue(asJobItem(dto));
   }