redis-smq-common/dist/cjs/src/timer/timer.js

RedisSMQ Common Library provides many components that are mainly used by RedisSMQ and RedisSMQ Monitor.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Timer = void 0;
const index_js_1 = require("../event/index.js");
const index_js_2 = require("./errors/index.js");
class Timer extends index_js_1.EventEmitter {
    constructor() {
        super(...arguments);
        this.timer = null;
        this.onTick = () => {
            if (!this.timer)
                this.emit('error', new index_js_2.TimerError('Expected a non-empty timer property'));
            else {
                const { fn, periodic } = this.timer;
                if (!periodic)
                    this.timer = null;
                fn();
            }
        };
    }
    setTimeout(fn, timeout) {
        if (this.timer) {
            return false;
        }
        this.timer = {
            timer: setTimeout(() => this.onTick(), timeout),
            periodic: false,
            fn,
        };
        return true;
    }
    setInterval(fn, interval = 1000) {
        if (this.timer) {
            return false;
        }
        this.timer = {
            timer: setInterval(() => this.onTick(), interval),
            periodic: true,
            fn,
        };
        return true;
    }
    reset() {
        if (this.timer) {
            const { timer, periodic } = this.timer;
            if (periodic)
                clearInterval(timer);
            else
                clearTimeout(timer);
            this.timer = null;
        }
    }
}
exports.Timer = Timer;
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