smarttime/ts/smarttime.classes.cronjob.ts
2020-05-27 16:59:26 +00:00

41 lines
1.1 KiB
TypeScript

import * as plugins from './smarttime.plugins';
import { CronManager } from './smarttime.classes.cronmanager';
export type TJobFunction = (() => void) | (() => Promise<any>);
export class CronJob {
public croner;
public status: 'started' | 'stopped' | 'initial' = 'initial';
public cronExpression: string;
public jobFunction: TJobFunction;
private nextExecutionUnix: number = 0;
constructor(cronManager: CronManager, cronExpressionArg: string, jobFunction: TJobFunction) {
this.cronExpression = cronExpressionArg;
this.jobFunction = jobFunction;
this.croner = plugins.croner(this.cronExpression);
}
/**
* checks wether the cronjob needs to be executed
*/
public checkExecution(): number {
if (this.nextExecutionUnix === 0) {
this.nextExecutionUnix = this.croner.msToNext();
}
if (Date.now() > this.nextExecutionUnix) {
this.jobFunction();
this.nextExecutionUnix = this.croner.msToNext();
}
return this.nextExecutionUnix;
}
public start() {
this.status = 'started';
}
public stop() {
this.status = 'stopped';
}
}