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@datorama/akita

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State Management Tailored-Made for JS Applications

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/** * @fileoverview added by tsickle * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc */ import { isUndefined } from '../isUndefined'; import { coerceArray } from '../coerceArray'; import { toBoolean } from '../toBoolean'; import { isFunction } from '../isFunction'; /** * Each plugin that wants to add support for entities should extend this interface. * @abstract * @template State, P */ export class EntityCollectionPlugin { /** * @protected * @param {?} query * @param {?} entityIds */ constructor(query, entityIds) { this.query = query; this.entityIds = entityIds; this.entities = new Map(); } /** * Get the entity plugin instance. * @protected * @param {?} id * @return {?} */ getEntity(id) { return this.entities.get(id); } /** * Whether the entity plugin exist. * @protected * @param {?} id * @return {?} */ hasEntity(id) { return this.entities.has(id); } /** * Remove the entity plugin instance. * @protected * @param {?} id * @return {?} */ removeEntity(id) { this.destroy(id); return this.entities.delete(id); } /** * Set the entity plugin instance. * @protected * @param {?} id * @param {?} plugin * @return {?} */ createEntity(id, plugin) { return this.entities.set(id, plugin); } /** * If the user passes `entityIds` we take them; otherwise, we take all. * @protected * @return {?} */ getIds() { return isUndefined(this.entityIds) ? this.query.getValue().ids : coerceArray(this.entityIds); } /** * When you call one of the plugin methods, you can pass id/ids or undefined which means all. * @protected * @param {?=} ids * @return {?} */ resolvedIds(ids) { return isUndefined(ids) ? this.getIds() : coerceArray(ids); } /** * Call this method when you want to activate the plugin on init or when you need to listen to add/remove of entities dynamically. * * For example in your plugin you may do the following: * * this.query.select(state => state.ids).pipe(skip(1)).subscribe(ids => this.activate(ids)); * @protected * @param {?} ids * @param {?=} actions * @return {?} */ rebase(ids, actions = {}) { /** * * If the user passes `entityIds` & we have new ids check if we need to add/remove instances. * * This phase will be called only upon update. */ if (toBoolean(ids)) { /** * Which means all */ if (isUndefined(this.entityIds)) { for (let i = 0, len = ids.length; i < len; i++) { /** @type {?} */ const entityId = ids[i]; if (this.hasEntity(entityId) === false) { isFunction(actions.beforeAdd) && actions.beforeAdd(entityId); /** @type {?} */ const plugin = this.instantiatePlugin(entityId); this.entities.set(entityId, plugin); isFunction(actions.afterAdd) && actions.afterAdd(plugin); } } this.entities.forEach((/** * @param {?} plugin * @param {?} entityId * @return {?} */ (plugin, entityId) => { if (ids.indexOf(entityId) === -1) { isFunction(actions.beforeRemove) && actions.beforeRemove(plugin); this.removeEntity(entityId); } })); } else { /** * Which means the user passes specific ids * @type {?} */ const _ids = coerceArray(this.entityIds); for (let i = 0, len = _ids.length; i < len; i++) { /** @type {?} */ const entityId = _ids[i]; /** The Entity in current ids and doesn't exist, add it. */ if (ids.indexOf(entityId) > -1 && this.hasEntity(entityId) === false) { isFunction(actions.beforeAdd) && actions.beforeAdd(entityId); /** @type {?} */ const plugin = this.instantiatePlugin(entityId); this.entities.set(entityId, plugin); isFunction(actions.afterAdd) && actions.afterAdd(plugin); } else { this.entities.forEach((/** * @param {?} plugin * @param {?} entityId * @return {?} */ (plugin, entityId) => { /** The Entity not in current ids and exists, remove it. */ if (ids.indexOf(entityId) === -1 && this.hasEntity(entityId) === true) { isFunction(actions.beforeRemove) && actions.beforeRemove(plugin); this.removeEntity(entityId); } })); } } } } else { /** * Otherwise, start with the provided ids or all. */ this.getIds().forEach((/** * @param {?} id * @return {?} */ id => { if (!this.hasEntity(id)) this.createEntity(id, this.instantiatePlugin(id)); })); } } /** * Listen for add/remove entities. * @protected * @return {?} */ selectIds() { return this.query.select((/** * @param {?} state * @return {?} */ state => state.ids)); } /** * Base method for activation, you can override it if you need to. * @protected * @param {?=} ids * @return {?} */ activate(ids) { this.rebase(ids); } /** * Loop over each id and invoke the plugin method. * @protected * @param {?} ids * @param {?} cb * @return {?} */ forEachId(ids, cb) { /** @type {?} */ const _ids = this.resolvedIds(ids); for (let i = 0, len = _ids.length; i < len; i++) { /** @type {?} */ const id = _ids[i]; if (this.hasEntity(id)) { cb(this.getEntity(id)); } } } } if (false) { /** * @type {?} * @protected */ EntityCollectionPlugin.prototype.entities; /** * @type {?} * @protected */ EntityCollectionPlugin.prototype.query; /** * @type {?} * @private */ EntityCollectionPlugin.prototype.entityIds; /** * This method is responsible for plugin instantiation. * * For example: * return new StateHistory(this.query, this.params, id) as P; * @abstract * @protected * @param {?} id * @return {?} */ EntityCollectionPlugin.prototype.instantiatePlugin = function (id) { }; /** * This method is responsible for cleaning. * @abstract * @param {?=} id * @return {?} */ EntityCollectionPlugin.prototype.destroy = function (id) { }; } //# 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{ Observable } from 'rxjs';\nimport { EntityState, OrArray, getIDType } from '../types';\nimport { QueryEntity } from '../queryEntity';\nimport { isUndefined } from '../isUndefined';\nimport { coerceArray } from '../coerceArray';\nimport { toBoolean } from '../toBoolean';\nimport { isFunction } from '../isFunction';\n\nexport type RebaseAction<P = any> = (plugin: P) => any;\n\nexport type RebaseActions<P = any> = { beforeRemove?: RebaseAction; beforeAdd?: RebaseAction; afterAdd?: RebaseAction };\n\n/**\n * Each plugin that wants to add support for entities should extend this interface.\n */\nexport abstract class EntityCollectionPlugin<State extends EntityState, P> {\n  protected entities = new Map<getIDType<State>, P>();\n\n  protected constructor(protected query: QueryEntity<State>, private entityIds: OrArray<getIDType<State>>) {}\n\n  /**\n   * Get the entity plugin instance.\n   */\n  protected getEntity(id: getIDType<State>): P {\n    return this.entities.get(id);\n  }\n\n  /**\n   * Whether the entity plugin exist.\n   */\n  protected hasEntity(id: getIDType<State>): boolean {\n    return this.entities.has(id);\n  }\n\n  /**\n   * Remove the entity plugin instance.\n   */\n  protected removeEntity(id: getIDType<State>) {\n    this.destroy(id);\n    return this.entities.delete(id);\n  }\n\n  /**\n   * Set the entity plugin instance.\n   */\n  protected createEntity(id: getIDType<State>, plugin: P) {\n    return this.entities.set(id, plugin);\n  }\n\n  /**\n   * If the user passes `entityIds` we take them; otherwise, we take all.\n   */\n  protected getIds(): any {\n    return isUndefined(this.entityIds) ? this.query.getValue().ids : coerceArray(this.entityIds);\n  }\n\n  /**\n   * When you call one of the plugin methods, you can pass id/ids or undefined which means all.\n   */\n  protected resolvedIds(ids?): getIDType<State>[] {\n    return isUndefined(ids) ? this.getIds() : coerceArray(ids);\n  }\n\n  /**\n   * Call this method when you want to activate the plugin on init or when you need to listen to add/remove of entities dynamically.\n   *\n   * For example in your plugin you may do the following:\n   *\n   * this.query.select(state => state.ids).pipe(skip(1)).subscribe(ids => this.activate(ids));\n   */\n  protected rebase(ids: getIDType<State>[], actions: RebaseActions<P> = {}) {\n    /**\n     *\n     * If the user passes `entityIds` & we have new ids check if we need to add/remove instances.\n     *\n     * This phase will be called only upon update.\n     */\n    if (toBoolean(ids)) {\n      /**\n       * Which means all\n       */\n      if (isUndefined(this.entityIds)) {\n        for (let i = 0, len = ids.length; i < len; i++) {\n          const entityId = ids[i];\n          if (this.hasEntity(entityId) === false) {\n            isFunction(actions.beforeAdd) && actions.beforeAdd(entityId);\n            const plugin = this.instantiatePlugin(entityId);\n            this.entities.set(entityId, plugin);\n            isFunction(actions.afterAdd) && actions.afterAdd(plugin);\n          }\n        }\n\n        this.entities.forEach((plugin, entityId) => {\n          if (ids.indexOf(entityId) === -1) {\n            isFunction(actions.beforeRemove) && actions.beforeRemove(plugin);\n            this.removeEntity(entityId);\n          }\n        });\n      } else {\n        /**\n         * Which means the user passes specific ids\n         */\n        const _ids = coerceArray(this.entityIds);\n        for (let i = 0, len = _ids.length; i < len; i++) {\n          const entityId = _ids[i];\n          /** The Entity in current ids and doesn't exist, add it. */\n          if (ids.indexOf(entityId) > -1 && this.hasEntity(entityId) === false) {\n            isFunction(actions.beforeAdd) && actions.beforeAdd(entityId);\n            const plugin = this.instantiatePlugin(entityId);\n            this.entities.set(entityId, plugin);\n            isFunction(actions.afterAdd) && actions.afterAdd(plugin);\n          } else {\n            this.entities.forEach((plugin, entityId) => {\n              /** The Entity not in current ids and exists, remove it. */\n              if (ids.indexOf(entityId) === -1 && this.hasEntity(entityId) === true) {\n                isFunction(actions.beforeRemove) && actions.beforeRemove(plugin);\n                this.removeEntity(entityId);\n              }\n            });\n          }\n        }\n      }\n    } else {\n      /**\n       * Otherwise, start with the provided ids or all.\n       */\n      this.getIds().forEach(id => {\n        if (!this.hasEntity(id)) this.createEntity(id, this.instantiatePlugin(id));\n      });\n    }\n  }\n\n  /**\n   * Listen for add/remove entities.\n   */\n  protected selectIds(): Observable<any> {\n    return this.query.select(state => state.ids);\n  }\n\n  /**\n   * Base method for activation, you can override it if you need to.\n   */\n  protected activate(ids?: any[]) {\n    this.rebase(ids);\n  }\n\n  /**\n   * This method is responsible for plugin instantiation.\n   *\n   * For example:\n   * return new StateHistory(this.query, this.params, id) as P;\n   */\n  protected abstract instantiatePlugin(id: getIDType<State>): P;\n\n  /**\n   * This method is responsible for cleaning.\n   */\n  public abstract destroy(id?: getIDType<State>);\n\n  /**\n   * Loop over each id and invoke the plugin method.\n   */\n  protected forEachId(ids: OrArray<getIDType<State>>, cb: (entity: P) => any) {\n    const _ids = this.resolvedIds(ids);\n\n    for (let i = 0, len = _ids.length; i < len; i++) {\n      const id = _ids[i];\n      if (this.hasEntity(id)) {\n        cb(this.getEntity(id));\n      }\n    }\n  }\n}\n"]}