feat(Managers): add customizable caching for managers (#6013)

src/managers/BaseManager.js

@@ -1,24 +1,11 @@
 'use strict';
 
-const Collection = require('../util/Collection');
-let Structures;
-
 /**
- * Manages the API methods of a data model and holds its cache.
+ * Manages the API methods of a data model.
  * @abstract
  */
 class BaseManager {
-  constructor(client, iterable, holds, cacheType = Collection, ...cacheOptions) {
-    if (!Structures) Structures = require('../util/Structures');
-    /**
-     * The data structure belonging to this manager
-     * @name BaseManager#holds
-     * @type {Function}
-     * @private
-     * @readonly
-     */
-    Object.defineProperty(this, 'holds', { value: Structures.get(holds.name) ?? holds });
-
+  constructor(client) {
     /**
      * The client that instantiated this Manager
      * @name BaseManager#client
@@ -26,55 +13,6 @@ class BaseManager {
      * @readonly
      */
     Object.defineProperty(this, 'client', { value: client });
-
-    /**
-     * The type of Collection of the Manager
-     * @type {Collection}
-     */
-    this.cacheType = cacheType;
-
-    /**
-     * Holds the cache for the data model
-     * @type {Collection}
-     */
-    this.cache = new cacheType(...cacheOptions);
-    if (iterable) for (const i of iterable) this.add(i);
-  }
-
-  add(data, cache = true, { id, extras = [] } = {}) {
-    const existing = this.cache.get(id ?? data.id);
-    if (cache) existing?._patch(data);
-    if (existing) return existing;
-
-    const entry = this.holds ? new this.holds(this.client, data, ...extras) : data;
-    if (cache) this.cache.set(id ?? entry.id, entry);
-    return entry;
-  }
-
-  /**
-   * Resolves a data entry to a data Object.
-   * @param {string|Object} idOrInstance The id or instance of something in this Manager
-   * @returns {?Object} An instance from this Manager
-   */
-  resolve(idOrInstance) {
-    if (idOrInstance instanceof this.holds) return idOrInstance;
-    if (typeof idOrInstance === 'string') return this.cache.get(idOrInstance) ?? null;
-    return null;
-  }
-
-  /**
-   * Resolves a data entry to an instance ID.
-   * @param {string|Object} idOrInstance The id or instance of something in this Manager
-   * @returns {?Snowflake}
-   */
-  resolveID(idOrInstance) {
-    if (idOrInstance instanceof this.holds) return idOrInstance.id;
-    if (typeof idOrInstance === 'string') return idOrInstance;
-    return null;
-  }
-
-  valueOf() {
-    return this.cache;
   }
 }