'use strict'
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const enqueue = require('./enqueue')
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const flush = require('./flush')
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const purge = require('./purge')
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/**
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* Builds a request queue object and returns it.
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*
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* @param {object} [options]
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* @param {integer} [options.size] Maximum size of the request queue. Must be
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* a number greater than `0` if supplied. Default: `Infinity`.
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* @param {integer} [options.timeout] Time in milliseconds a queue has to
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* complete the requests it contains.
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*
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* @returns {object} A queue instance.
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*/
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module.exports = function requestQueueFactory (options) {
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const opts = Object.assign({}, options)
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const q = {
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size: (opts.size > 0) ? opts.size : Infinity,
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timeout: (opts.timeout > 0) ? opts.timeout : 0,
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_queue: new Set(),
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_timer: null,
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_frozen: false
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}
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q.enqueue = enqueue.bind(q)
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q.flush = flush.bind(q)
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q.purge = purge.bind(q)
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q.freeze = function freeze () {
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this._frozen = true
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}
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q.thaw = function thaw () {
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this._frozen = false
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}
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return q
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}
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