flowed/dist/engine/value-queue-manager.js

A fast and reliable flow engine for orchestration and more uses in *Node.js*, *Deno* and the browser

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.ValueQueueManager = void 0;
class ValueQueueManager {
    static fromSerializable(serializable) {
        const queueNames = Object.keys(serializable);
        const instance = new ValueQueueManager(queueNames);
        instance.queues = serializable;
        instance.nonEmptyQueues = queueNames.reduce((acc, name) => {
            if (instance.queues[name].length > 0) {
                acc.add(name);
            }
            return acc;
        }, new Set());
        return instance;
    }
    constructor(queueNames) {
        this.nonEmptyQueues = new Set();
        this.queueNames = [...queueNames];
        this.queues = queueNames.reduce((acc, name) => {
            acc[name] = [];
            return acc;
        }, {});
    }
    push(queueName, value) {
        if (!this.queueNames.includes(queueName)) {
            throw new Error(`Queue name ${queueName} does not exist in queue manager. Existing queues are: [${this.queueNames.join(', ')}].`);
        }
        this.nonEmptyQueues.add(queueName);
        this.queues[queueName].push(value);
    }
    getEmptyQueueNames() {
        return this.queueNames.reduce((acc, name) => {
            if (this.queues[name].length === 0) {
                acc.push(name);
            }
            return acc;
        }, []);
    }
    popAll() {
        this.validateAllNonEmpty();
        return this.queueNames.reduce((acc, name) => {
            acc[name] = this.queues[name].shift();
            if (this.queues[name].length === 0) {
                this.nonEmptyQueues.delete(name);
            }
            return acc;
        }, {});
    }
    topAll() {
        this.validateAllNonEmpty();
        return this.queueNames.reduce((acc, name) => {
            acc[name] = this.queues[name][0];
            return acc;
        }, {});
    }
    toSerializable() {
        return JSON.parse(JSON.stringify(this.queues));
    }
    validateAllNonEmpty() {
        if (!this.allHaveContent()) {
            throw new Error(`Some of the queues are empty: [${this.getEmptyQueueNames().join(', ')}].`);
        }
    }
    allHaveContent() {
        return this.nonEmptyQueues.size === this.queueNames.length;
    }
}
exports.ValueQueueManager = ValueQueueManager;
//# sourceMappingURL=value-queue-manager.js.map