Brazen Item Attributes Resolver

Item attributes resolution helper class
目前为 2022-11-09 提交的版本。查看最新版本。
此脚本不应直接安装，它是一个供其他脚本使用的外部库。如果您需要使用该库，请在脚本元属性加入：// @require https://update.greasyfork.icu/scripts/429587/1115000/Brazen%20Item%20Attributes%20Resolver.js
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// ==UserScript==
// @name         Brazen Item Attributes Resolver
// @namespace    brazenvoid
// @version      2.0.0
// @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} name
     * @param {ItemAttributesResolverCallback} resolutionCallback
     * @returns {this}
     */
    addAttribute(name, resolutionCallback)
    {
        this._attributes[name] = resolutionCallback
        return this
    }
    
    /**
     * @param {string} name
     * @param {ItemAttributesResolverCallback} resolutionCallback
     * @returns {this}
     */
    addDeepAttribute(name, resolutionCallback)
    {
        this._deepAttributes[name] = resolutionCallback
        this._hasDeepAttributes = true
        return this
    }
    
    /**
     * @returns {BrazenItemAttributesResolver}
     */
    completeResolutionRun()
    {
        this._requestIteration = 1;
        return this
    }
    
    /**
     * @param {JQuery} item
     * @param {string} attributeName
     * @returns {*}
     */
    get(item, attributeName)
    {
        return typeof item[0].scriptAttributes === 'undefined' ? null : item[0].scriptAttributes[attributeName] || 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)
        }
        if (this._hasDeepAttributes) {
            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 {JQuery} item
     * @param {string} attributeName
     * @param {*} value
     * @returns {BrazenItemAttributesResolver}
     */
    set(item, attributeName, value)
    {
        item[0].scriptAttributes[attributeName] = value
        return this
    }
}