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/** * Copyright (c) 2017 ~ present NAVER Corp. * billboard.js project is licensed under the MIT license */import {isValue, toArray} from "./util";import type {DataRow} from "../../types/types";
/** * Constant for cache key * - NOTE: Prefixed with '$', will be resetted when .load() is called * @private */export const KEY = {	bubbleBaseLength: "$baseLength",	colorPattern: "__colorPattern__",	dataMinMax: "$dataMinMax",	dataTotalSum: "$dataTotalSum",	dataTotalPerIndex: "$totalPerIndex",	legendItemTextBox: "legendItemTextBox",	radarPoints: "$radarPoints",	setOverOut: "setOverOut",	callOverOutForTouch: "callOverOutForTouch",	textRect: "textRect"};
export default class Cache {	private cache = {};
	/**	 * Add cache	 * @param {string} key Cache key	 * @param {*} value Value to be stored	 * @param {boolean} isDataType Weather the cache is data typed '{id:'data', id_org: 'data', values: [{x:0, index:0,...}, ...]}'	 * @returns {*} Added data value	 * @private	 */	add(key: string, value, isDataType = false) {		this.cache[key] = isDataType ? this.cloneTarget(value) : value;		return this.cache[key];	}
	/**	 * Remove cache	 * @param {string|Array} key Cache key	 * @private	 */	remove(key: string | string[]) {		toArray(key).forEach(v => delete this.cache[v]);	}
	/**	 * Get cahce	 * @param {string|Array} key Cache key	 * @param {boolean} isDataType Weather the cache is data typed '{id:'data', id_org: 'data', values: [{x:0, index:0,...}, ...]}'	 * @returns {*}	 * @private	 */	get(key: string, isDataType = false): any | null {		if (isDataType) {			const targets: any[] = [];
			for (let i = 0, id; (id = key[i]); i++) {				if (id in this.cache) {					targets.push(this.cloneTarget(this.cache[id]));				}			}
			return targets;		} else {			const value = this.cache[key];
			return isValue(value) ? value : null;		}	}
	/**	 * Reset cached data	 * @param {boolean} all true: reset all data, false: reset only '$' prefixed key data	 * @private	 */	reset(all?: boolean): void {		const $$ = this;
		for (const x in $$.cache) {			// reset the prefixed '$' key(which is internal use data) only.			if (all || /^\$/.test(x)) {				$$.cache[x] = null;			}		}	}
	/**	 * Clone data target object	 * @param {object} target Data object	 * @returns {object}	 * @private	 */	// eslint-disable-next-line camelcase	cloneTarget(target: DataRow): DataRow {		return {			id: target.id,			id_org: target.id_org,			values: target.values.map(d => ({x: d.x, value: d.value, id: d.id}))		};	}}