refactor(server): cron repository (#13988)

server/src/repositories/cron.repository.ts

@@ -0,0 +1,52 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { SchedulerRegistry } from '@nestjs/schedule';
+import { CronJob, CronTime } from 'cron';
+import { CronCreate, CronUpdate, ICronRepository } from 'src/interfaces/cron.interface';
+import { ILoggerRepository } from 'src/interfaces/logger.interface';
+
+@Injectable()
+export class CronRepository implements ICronRepository {
+  constructor(
+    private schedulerRegistry: SchedulerRegistry,
+    @Inject(ILoggerRepository) private logger: ILoggerRepository,
+  ) {
+    this.logger.setContext(CronRepository.name);
+  }
+
+  create({ name, expression, onTick, start = true }: CronCreate): void {
+    const job = new CronJob<null, null>(
+      expression,
+      onTick,
+      // function to run onComplete
+      undefined,
+      // whether it should start directly
+      start,
+      // timezone
+      undefined,
+      // context
+      undefined,
+      // runOnInit
+      undefined,
+      // utcOffset
+      undefined,
+      // prevents memory leaking by automatically stopping when the node process finishes
+      true,
+    );
+
+    this.schedulerRegistry.addCronJob(name, job);
+  }
+
+  update({ name, expression, start }: CronUpdate): void {
+    const job = this.schedulerRegistry.getCronJob(name);
+    if (expression) {
+      job.setTime(new CronTime(expression));
+    }
+    if (start !== undefined) {
+      if (start) {
+        job.start();
+      } else {
+        job.stop();
+      }
+    }
+  }
+}