@akala/core/dist/queue.js

# Context

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
class Queue {
    constructor(handler, queue) {
        this.handler = handler;
        this.processing = false;
        this.pending = queue || [];
    }
    enqueue(message) {
        this.pending.push(message);
        this.save();
        this.process();
    }
    ;
    save(_throw) {
        if (_throw)
            throw new Error('You need to define where and how to save the queue.');
    }
    process() {
        if (this.processing)
            return;
        this.processing = true;
        var message = this.pending.shift();
        this.current = message;
        if (!message)
            return this.processing = false;
        this.handler(message, (processed) => {
            if (processed === false) {
                this.enqueue(message);
            }
            this.save();
            this.processing = false;
            if (processed !== false)
                process.nextTick(this.process.bind(this));
        });
    }
    ;
}
exports.Queue = Queue;
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