76 lines
2.2 KiB
TypeScript
76 lines
2.2 KiB
TypeScript
import * as plugins from './smarttime.plugins';
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import { CronJob } from './smarttime.classes.cronjob';
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export class CronManager {
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public executionTimeout: plugins.smartdelay.Timeout<void>;
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public status: 'started' | 'stopped' = 'stopped';
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public cronjobs = new plugins.lik.ObjectMap<CronJob>();
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constructor() {}
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public addCronjob(cronIdentifierArg: string, cronFunctionArg: () => Promise<void>) {
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const newCronJob = new CronJob(this, cronIdentifierArg, cronFunctionArg);
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this.cronjobs.add(newCronJob);
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if (this.status === 'started') {
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newCronJob.start();
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}
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return newCronJob;
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}
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public removeCronjob(cronjobArg: CronJob) {
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cronjobArg.stop();
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this.cronjobs.remove(cronjobArg);
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}
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/**
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* starts the cronjob
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*/
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public start() {
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if (this.status !== 'started') {
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this.status = 'started';
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for (const cronJob of this.cronjobs.getArray()) {
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cronJob.start();
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}
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const runCronCycle = async () => {
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this.executionTimeout = new plugins.smartdelay.Timeout(0);
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do {
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let timeToNextOverallExecution: number;
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for (const cronJob of this.cronjobs.getArray()) {
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const nextExecutionTime = cronJob.checkExecution();
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const timeToNextJobExecution = nextExecutionTime - Date.now();
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if (
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timeToNextJobExecution < timeToNextOverallExecution ||
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!timeToNextOverallExecution
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) {
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timeToNextOverallExecution = timeToNextJobExecution;
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}
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}
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this.executionTimeout = new plugins.smartdelay.Timeout(timeToNextOverallExecution);
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console.log(
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`Next CronJob scheduled in ${this.executionTimeout.getTimeLeft()} milliseconds`
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);
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await this.executionTimeout.promise;
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} while (this.status === 'started');
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};
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runCronCycle();
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}
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}
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/**
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* stops all cronjobs
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*/
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public stop() {
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if (this.status === 'started') {
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this.status = 'stopped';
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this.executionTimeout.cancel();
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} else {
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console.log(`You tried to stop a CronManager that was not actually started.`);
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}
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for (const cron of this.cronjobs.getArray()) {
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cron.stop();
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}
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}
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}
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