Item attributes resolution helper class
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// ==UserScript==
// @name Brazen Item Attributes Resolver
// @namespace brazenvoid
// @version 2.2.1
// @author brazenvoid
// @license GPL-3.0-only
// @description Item attributes resolution helper class
// ==/UserScript==
class BrazenItemAttributesResolver
{
/**
* @typedef {{itemLinkSelector: JQuery.Selector, itemDeepAnalysisSelector: JQuery.Selector, requestDelay: number,
* onDeepAttributesResolution: Function}} ItemAttributesResolverConfiguration
*/
/**
* @callback ItemAttributesResolverCallback
* @param {JQuery} item
* @return {*}
*/
/**
* @param {ItemAttributesResolverConfiguration} configuration
*/
constructor(configuration)
{
/**
* @type {{}}
* @private
*/
this._attributes = {}
/**
* @type {{}}
* @private
*/
this._deepAttributes = {}
/**
* @type {boolean}
* @private
*/
this._hasDeepAttributes = false
/**
* @type {JQuery.Selector}
* @protected
*/
this._itemLinkSelector = configuration.itemLinkSelector
/**
* @type {JQuery.Selector}
* @protected
*/
this._itemDeepAnalysisSelector = configuration.itemDeepAnalysisSelector
/**
* @type {Function}
* @private
*/
this._onDeepAttributesResolution = configuration.onDeepAttributesResolution
/**
* @type {number}
* @private
*/
this._requestDelay = configuration.requestDelay
/**
* @type {number}
* @private
*/
this._requestIteration = 1
/**
* @type {JQuery<HTMLElement> | jQuery | HTMLElement}
* @private
*/
this._sandbox = $('<div id="brazen-item-attributes-resolver-sandbox" hidden/>').appendTo('body')
}
/**
* @param {string} attribute
* @returns {string}
* @private
*/
_formatAttributeName(attribute)
{
return attribute.toLowerCase().replaceAll(' ', '_')
}
/**
* @param {JQuery} item
* @param {Object} attributesBag
* @private
*/
_loadDeepAttributes(item, attributesBag)
{
let url = item.find(this._itemLinkSelector).attr('href')
if (url) {
Utilities.sleep(this._requestIteration * this._requestDelay).then(() => {
try {
this._sandbox.load(url + ' ' + this._itemDeepAnalysisSelector, () => {
for (const attributeName in this._deepAttributes) {
attributesBag[attributeName] = this._deepAttributes[attributeName](this._sandbox)
}
this._onDeepAttributesResolution(item)
this._sandbox.empty()
})
} catch (error) {
console.error('Deep attributes loading failed.')
}
})
this._requestIteration++
}
}
/**
* @param {string} attribute
* @param {ItemAttributesResolverCallback} resolutionCallback
* @returns {this}
*/
addAttribute(attribute, resolutionCallback)
{
this._attributes[this._formatAttributeName(attribute)] = resolutionCallback
return this
}
/**
* @param {string} attribute
* @param {ItemAttributesResolverCallback} resolutionCallback
* @returns {this}
*/
addDeepAttribute(attribute, resolutionCallback)
{
this._deepAttributes[this._formatAttributeName(attribute)] = resolutionCallback
this._hasDeepAttributes = true
return this
}
/**
* @returns {BrazenItemAttributesResolver}
*/
completeResolutionRun()
{
this._requestIteration = 1
return this
}
/**
* @param {JQuery} item
* @param {string} attribute
* @returns {*}
*/
get(item, attribute)
{
let attributesBag = item[0].scriptAttributes
if (typeof attributesBag !== 'undefined') {
let attributeName = this._formatAttributeName(attribute)
let attributeValue = attributesBag[attributeName]
if (typeof attributeValue !== 'undefined') {
return attributeValue
} else if (this._hasDeepAttributes) {
this._loadDeepAttributes(item, attributesBag)
}
}
return null
}
/**
* @param {JQuery} item
* @param {Function|null} afterResolutionCallback
*/
resolveAttributes(item, afterResolutionCallback = null)
{
let attributesBag = {}
item[0].scriptAttributes = attributesBag
for (const attributeName in this._attributes) {
attributesBag[attributeName] = this._attributes[attributeName](item)
}
}
/**
* @param {JQuery} item
* @param {string} attribute
* @param {*} value
* @returns {BrazenItemAttributesResolver}
*/
set(item, attribute, value)
{
item[0].scriptAttributes[this._formatAttributeName(attribute)] = value
return this
}
}