@fireflysemantics/slice/fesm2022/fireflysemantics-slice.mjs.map


{"version":3,"file":"fireflysemantics-slice.mjs","sources":["../../../projects/slice/src/lib/models/StoreConfig.ts","../../../projects/slice/src/lib/models/Entity.ts","../../../projects/slice/src/lib/models/constants.ts","../../../projects/slice/src/lib/AbstractStore.ts","../../../projects/slice/src/lib/utilities.ts","../../../projects/slice/src/lib/Slice.ts","../../../projects/slice/src/lib/EStore.ts","../../../projects/slice/src/lib/OStore.ts","../../../projects/slice/src/public-api.ts","../../../projects/slice/src/fireflysemantics-slice.ts"],"sourcesContent":["/**\n * The configuration interface for the entity store\n * defines the strings for the ID Key and Global ID key.\n */\nexport interface StoreConfig {\n    idKey: string;\n    guidKey: string;\n};\n  ","\n/**\n * Abstract Entity base class with the \n * gid and id properties declared.\n */\nexport abstract class Entity {\n    public gid?:string\n    public id?:string \n}","export const SCROLL_UP_DEBOUNCE_TIME_20 = 20;\nexport const SEARCH_DEBOUNCE_TIME_300 = 300;\n","import { ReplaySubject, Observable } from 'rxjs';\nimport { map } from 'rxjs/operators';\nimport { Delta, Predicate } from './models';\nimport { StoreConfig } from './models/StoreConfig';\n\nconst { freeze } = Object;\n\nconst ESTORE_DEFAULT_ID_KEY = 'id';\nconst ESTORE_DEFAULT_GID_KEY = 'gid';\n\nexport const ESTORE_CONFIG_DEFAULT: StoreConfig = freeze({\n  idKey: ESTORE_DEFAULT_ID_KEY,\n  guidKey: ESTORE_DEFAULT_GID_KEY,\n});\n\nexport abstract class AbstractStore<E> {\n  /**\n   * The configuration for the store.\n   */\n  public config: StoreConfig;\n\n  constructor(config?: StoreConfig) {\n    this.config = config\n      ? freeze({ ...ESTORE_CONFIG_DEFAULT, ...config })\n      : ESTORE_CONFIG_DEFAULT;\n  }\n\n  /**\n   * Notifies observers of the store query.\n   */\n  protected notifyQuery = new ReplaySubject<string>(1);\n\n  /**\n   * The current query state.\n   */\n  protected _query: string = '';\n\n  /**\n   * Sets the current query state and notifies observers.\n   */\n  set query(query: string) {\n    this._query = query;\n    this.notifyQuery.next(this._query);\n  }\n\n  /**\n   * @return A snapshot of the query state.\n   */\n  get query() {\n    return this._query;\n  }\n\n  /**\n   * Observe the query.\n   * @example\n     <pre>\n    let query$ = source.observeQuery();\n    </pre>\n  */\n  public observeQuery() {\n    return this.notifyQuery.asObservable();\n  }\n\n  /**\n   * The current id key for the EStore instance.\n   * @return this.config.idKey;\n   */\n  get ID_KEY(): string {\n    return this.config.idKey;\n  }\n  /**\n   * The current guid key for the EStore instance.\n   * @return this.config.guidKey;\n   */\n  get GUID_KEY(): string {\n    return this.config.guidKey;\n  }\n\n  /**\n   * Primary index for the stores elements.\n   */\n  public entries: Map<string, E> = new Map();\n\n  /**\n   * The element entries that are keyed by\n   * an id generated on the server.\n   */\n  public idEntries: Map<string, E> = new Map();\n\n  /**\n   * Create notifications that broacast\n   * the entire set of entries.\n   */\n  protected notify = new ReplaySubject<E[]>(1);\n\n  /**\n   * Create notifications that broacast\n   * store or slice delta state changes.\n   */\n  protected notifyDelta = new ReplaySubject<Delta<E>>(1);\n\n  /**\n   * Call all the notifiers at once.\n   *\n   * @param v\n   * @param delta\n   */\n  protected notifyAll(v: E[], delta: Delta<E>) {\n    this.notify.next(v);\n    this.notifyDelta.next(delta);\n  }\n\n  /**\n   * Observe store state changes.\n   *\n   * @param sort Optional sorting function yielding a sorted observable.\n   * @example\n   * ```\n   * let todos$ = source.observe();\n   * //or with a sort by title function\n   * let todos$ = source.observe((a, b)=>(a.title > b.title ? -1 : 1));\n   * ```\n   */\n  public observe(sort?: (a: any, b: any) => number): Observable<E[]> {\n    if (sort) {\n      return this.notify.pipe(map((e: E[]) => e.sort(sort)));\n    }\n    return this.notify.asObservable();\n  }\n\n  /**\n   * An Observable<E[]> reference\n   * to the entities in the store or\n   * Slice instance.\n   */\n  public obs: Observable<E[]> = this.observe();\n\n  /**\n   * Observe delta updates.\n   *\n   * @example\n   * ```\n   * let todos$ = source.observeDelta();\n   * ```\n   */\n  public observeDelta(): Observable<Delta<E>> {\n    return this.notifyDelta.asObservable();\n  }\n\n  /**\n   * Check whether the store is empty.\n   *\n   * @return A hot {@link Observable} that indicates whether the store is empty.\n   *\n   * @example\n   * ```\n   * const empty$:Observable<boolean> = source.isEmpty();\n   * ```\n   */\n  isEmpty(): Observable<boolean> {\n    return this.notify.pipe(map((entries: E[]) => entries.length == 0));\n  }\n\n  /**\n   * Check whether the store is empty.\n   *\n   * @return A snapshot that indicates whether the store is empty.\n   *\n   * @example\n   * ```\n   * const empty:boolean = source.isEmptySnapshot();\n   * ```\n   */\n  isEmptySnapshot(): boolean {\n    return Array.from(this.entries.values()).length == 0;\n  }\n\n  /**\n   * Returns the number of entries contained.\n   * @param p The predicate to apply in order to filter the count\n   * \n   * @example\n   * ```\n   * const completePredicate: Predicate<Todo> = function pred(t: Todo) {\n   *   return t.complete;\n   * };\n   * \n   * const incompletePredicate: Predicate<Todo> = function pred(t: Todo) {\n   *   return !t.complete;\n   * };\n   * \n   * store.count().subscribe((c) => {\n   *   console.log(`The observed count of Todo entities is ${c}`);\n   * });\n   * store.count(incompletePredicate).subscribe((c) => {\n   *   console.log(`The observed count of incomplete Todo enttiies is ${c}`);\n   * });\n   * store.count(completePredicate).subscribe((c) => {\n   *   console.log(`The observed count of complete Todo enttiies is ${c}`);\n   * });\n   * ```\n   */\n  count(p?: Predicate<E>): Observable<number> {\n    if (p) {\n      return this.notify.pipe(\n        map((e: E[]) => e.reduce((total, e) => total + (p(e) ? 1 : 0), 0))\n      );\n    }\n    return this.notify.pipe(map((entries: E[]) => entries.length));\n  }\n\n  /**\n   * Returns a snapshot of the number of entries contained in the store.\n   * @param p The predicate to apply in order to filter the count\n   * \n   * @example\n   * ```\n   * const completePredicate: Predicate<Todo> = function pred(t: Todo) {\n   *   return t.complete;\n   * };\n   * \n   * const incompletePredicate: Predicate<Todo> = function pred(t: Todo) {\n   *   return !t.complete;\n   * };\n   * \n   * const snapshotCount = store.countSnapshot(completePredicate);\n   * console.log(`The count is ${snapshotCount}`);\n   * \n   * const completeSnapshotCount = store.countSnapshot(completePredicate);\n   * console.log(\n   *   `The complete Todo Entity Snapshot count is ${completeSnapshotCount}`\n   * );\n   * \n   * const incompleteSnapshotCount = store.countSnapshot(incompletePredicate);\n   * console.log(\n   *   `The incomplete Todo Entity Snapshot count is ${incompleteSnapshotCount}`\n   * );\n   * ```\n   */\n  countSnapshot(p?: Predicate<E>): number {\n    if (p) {\n      return Array.from(this.entries.values()).filter(p).length;\n    }\n    return Array.from(this.entries.values()).length;\n  }\n\n  /**\n   * Snapshot of all entries.\n   * \n   * @return Snapshot array of all the elements the entities the store contains.\n   * \n   * @example Observe a snapshot of all the entities in the store.\n   * \n   * ```\n   * let selectedTodos:Todo[] = source.allSnapshot();\n   * ```\n   */\n  allSnapshot(): E[] {\n    return Array.from(this.entries.values());\n  }\n\n  /**\n   * Returns true if the entries contain the identified instance.\n   * \n   * @param target Either an instance of type `E` or a `guid` identifying the instance. \n   * @param byId Whether the lookup should be performed with the `id` key rather than the `guid`.\n   * @returns true if the instance identified by the guid exists, false otherwise.\n   * \n   * @example\n   * ```\n   * let contains:boolean = source.contains(guid);\n   * ```\n   */\n  contains(target: E | string): boolean {\n    if (typeof target === 'string') {\n      return this.entries.get(target) ? true : false;\n    }\n    const guid: string = (<any>target)[this.config.guidKey];\n    return this.entries.get(guid) ? true : false;\n  }\n\n  /**\n   * Returns true if the entries contain the identified instance.\n   * \n   * @param target Either an instance of type `E` or a `id` identifying the instance. \n   * @returns true if the instance identified by the `id` exists, false otherwise.\n   * \n   * @example\n   * ```\n   * let contains:boolean = source.contains(guid);\n   * ```\n   */\n  containsById(target: E | string): boolean {\n    if (typeof target === 'string') {\n      return this.idEntries.get(target) ? true : false;\n    }\n    const id: string = (<any>target)[this.config.idKey];\n    return this.idEntries.get(id) ? true : false;\n  }\n\n  /**\n   * Find and return the entity identified by the GUID parameter\n   * if it exists and return it.\n   *\n   * @param guid\n   * @return The entity instance if it exists, null otherwise\n   * \n   * @example\n   * ```\n   * const globalID: string = '1';\n   * let findThisTodo = new Todo(false, 'Find this Todo', globalID);\n   * store.post(findThisTodo);\n   * const todo = store.findOne(globalID);\n   * ```\n   */\n  findOne(guid: string): E | undefined {\n    return this.entries.get(guid);\n  }\n\n  /**\n   * Find and return the entity identified by the ID parameter\n   * if it exists and return it.\n   *\n   * @param id\n   * @return The entity instance if it exists, null otherwise\n   * \n   * @example\n   * ```\n   * const todoLater: Todo = new Todo(false, 'Do me later.');\n   * todoLater.id = 'findMe';\n   * store.post(todoLater);\n   * const postedTodo = store.findOneByID('findMe');\n   * ```\n   */\n  findOneByID(id: string): E | undefined {\n    return this.idEntries.get(id);\n  }\n\n  /**\n   * Snapshot of the entries that match the predicate.\n   *\n   * @param p The predicate used to query for the selection.\n   * @return A snapshot array containing the entities that match the predicate.\n   *\n   * @example Select all the Todo instances where the title length is greater than 100.\n   * ```\n   * let todos:Todo[]=store.select(todo=>todo.title.length>100);\n   * ```\n   */\n  select(p: Predicate<E>): E[] {\n    const selected: E[] = [];\n    Array.from(this.entries.values()).forEach((e) => {\n      if (p(e)) {\n        selected.push(e);\n      }\n    });\n    return selected;\n  }\n\n  /**\n   * Compare entities by GUID\n   * \n   * @param e1 The first entity\n   * @param e2 The second entity\n   * @return true if the two entities have equal GUID ids\n   *\n   * @example Compare todo1 with todo2 by gid.\n   * ```\n   * if (equalsByGUID(todo1, todo2)){...};\n   * ```\n   */\n  equalsByGUID(e1: any, e2: any) {\n    return e1[this.GUID_KEY] == e2[this.GUID_KEY];\n  }\n\n  /**\n   * Compare entities by ID\n   * \n   * @param e1 The first entity\n   * @param e2 The second entity\n   * @return true if the two entities have equal ID ids\n   *\n   * @example Compare todo1 with todo2 by id.\n   *\n   * ```\n   * if (equalsByID(todo1, todo2)){...};\n   * ```\n   */\n  equalsByID(e1: any, e2: any) {\n    return e1[this.ID_KEY] == e2[this.ID_KEY];\n  }\n\n  /**\n   * Call destroy when disposing of the store, as it\n   * completes all {@link ReplaySubject} instances.\n   * \n   * @example\n   * ```\n   * store.destroy();\n   * ```\n   */\n  destroy() {\n    this.notify.complete();\n    this.notifyDelta.complete();\n    this.notifyQuery.complete();\n  }\n}\n","import { ESTORE_CONFIG_DEFAULT } from \"./AbstractStore\";\nimport { Observable, fromEvent, of } from 'rxjs'\nimport { switchMap, pairwise, debounceTime, distinctUntilChanged, map, filter } from 'rxjs/operators'\nimport { nanoid} from \"nanoid\"\nimport { scrollPosition } from \"./models/scrollPosition\";\n\n/**\n * Returns all the entities are distinct by the \n * `property` value argument.  \n * \n * Note that the implementation uses a `Map<string, E>` to\n * index the entities by key.  Therefore the more recent occurences \n * matching a key instance will overwrite the previous ones.\n * \n * @param property The name of the property to check for distinct values by.\n * @param entities The entities in the array.\n * \n * @example\n ```\n  let todos: Todo[] = [\n    { id: 1, title: \"Lets do it!\" },\n    { id: 1, title: \"Lets do it again!\" },\n    { id: 2, title: \"All done!\" }\n  ];\n\n  let todos2: Todo[] = [\n    { id: 1, title: \"Lets do it!\" },\n    { id: 2, title: \"All done!\" }\n  ];\n\n  expect(distinct(todos, \"id\").length).toEqual(2);\n  expect(distinct(todos2, \"id\").length).toEqual(2);\n\n ```\n */\nexport function distinct<E, K extends keyof E>(entities: E[], property: K): E[] {\n  const entitiesByProperty = new Map(entities.map(e => [e[property], e] as [E[K], E]));\n  return Array.from(entitiesByProperty.values());\n}\n\n/**\n * Returns true if all the entities are distinct by the \n * `property` value argument.\n * \n * @param property The name of the property to check for distinct values by.\n * @param entities The entities in the array.\n * \n * @example\n * \n ```\n  let todos: Todo[] = [\n    { id: 1, title: \"Lets do it!\" },\n    { id: 1, title: \"Lets do it again!\" },\n    { id: 2, title: \"All done!\" }\n  ];\n\n  let todos2: Todo[] = [\n    { id: 1, title: \"Lets do it!\" },\n    { id: 2, title: \"All done!\" }\n  ];\n\n  expect(unique(todos, \"id\")).toBeFalsy();\n  expect(unique(todos2, \"id\")).toBeTruthy();\n ```\n */\nexport function unique<E>(entities: E[], property: keyof E):boolean {\n  return entities.length == distinct(entities, property).length ? true : false;\n}\n\n/**\n * Create a global ID\n * @return The global id.\n * \n * @example\n * let e.guid = GUID();\n */\nexport function GUID() {\n  return nanoid();\n}\n\n/**\n * Set the global identfication property on the instance.\n * \n * @param e Entity we want to set the global identifier on.\n * @param gid The name of the `gid` property.  If not specified it defaults to `ESTORE_CONFIG_DEFAULT.guidKey`.\n */\nexport function attachGUID<E>(e: E, gid?: string): string {\n  const guidKey = gid ? gid : ESTORE_CONFIG_DEFAULT.guidKey\n  let id: string = nanoid();\n  (<any>e)[guidKey] = id\n  return id\n}\n\n/**\n * Set the global identfication property on the instance.\n * \n * @param e[] Entity array we want to set the global identifiers on.\n * @param gid The name of the `gid` property.  If not specified it defaults to `gid`.\n */\nexport function attachGUIDs<E>(e: E[], gid?: string) {\n  e.forEach(e => {\n    attachGUID(e, gid);\n  });\n}\n\n/**\n * Create a shallow copy of the argument.\n * @param o The object to copy\n */\nexport function shallowCopy<E>(o: E) {\n  return { ...o };\n}\n\n/**\n * Create a deep copy of the argument.\n * @param o The object to copy\n */\nexport function deepCopy<E>(o: E) {\n  return JSON.parse(JSON.stringify(o));\n}\n\n/**\n * Gets the current active value from the `active`\n * Map.  \n * \n * This is used for the scenario where we are managing\n * a single active instance.  For example \n * when selecting a book from a collection of books.  \n * \n * The selected `Book` instance becomes the active value.\n * \n * @example\n * const book:Book = getActiveValue(bookStore.active);\n * @param m \n */\nexport function getActiveValue<E>(m: Map<any, E>) {\n  if (m.size) {\n    return m.entries().next().value[1];\n  }\n  return null;\n}\n\n/**\n * The method can be used to exclude keys from an instance\n * of type `E`.  \n * \n * We can use this to exclude values when searching an object.\n * \n * @param entity An instance of type E\n * @param exclude The keys to exclude\n * \n * @example\n * todo = { id: '1', description: 'Do it!' }\n * let keys = excludeKeys<Todo>(todo, ['id]);\n * // keys = ['description']\n */\nexport function excludeKeys<E>(entity: any, exclude: string[]) {\n  const keys: string[] = Object.keys(entity);\n  return keys.filter((key) => {\n    return exclude.indexOf(key) < 0;\n  });\n}\n\n/**\n * \n * @param entities The entity to search\n * @param exclude Keys to exclude from each entity\n * \n * @return E[] Array of entities with properties containing the search term.\n */\nexport function search<E>(query: string = '', entities: E[], exclude: string[] = []): E[] {\n  const { isArray } = Array\n\n  query = query.toLowerCase();\n\n\n  return entities.filter(function (e: E) {\n    //Do the keys calculation on each instance e:E\n    //because an instance can have optional parameters,\n    //and thus we have to check each instance, not just\n    //the first one in the array.\n    const keys = excludeKeys(e, exclude)\n    return keys.some( (key) => {\n      const value = (e as any)[key];\n      if (!value) {\n        return false;\n      }\n      if (isArray(value)) {\n        return value.some(v => {\n          return String(v).toLowerCase().includes(query);\n        });\n      }\n      else {\n        return String(value).toLowerCase().includes(query);\n      }\n    })\n  });\n}\n\n/**\n * @param scrollable The element being scrolled\n * @param debounceMS The number of milliseconds to debounce scroll events\n * @param sp The function returning the scroll position coordinates.\n * @return A boolean valued observable indicating whether the element is scrolling up or down\n */\nexport function scrollingUp(\n  scrollable: any, \n  debounceMS: number, \n  sp: scrollPosition): Observable<boolean> {\n  return fromEvent(scrollable, 'scroll').pipe(\n    debounceTime(debounceMS), \n    distinctUntilChanged(), \n    map(v => sp()), \n    pairwise(), \n    switchMap(p => {\n    const y1 = p[0][1]\n    const y2 = p[1][1]\n    return y1 - y2 > 0 ? of(false) : of(true)\n  }))\n}\n\n/**\n * Filters the entities properties to the set contained in the \n * `keys` array.\n *  \n * @param keys The array of keys that the entity be limited to\n * @param entity The entity to map\n * @return An entity instance that has only the keys provided in the keys array \n */\nexport function mapEntity(keys:string[], entity:any) {\n  const result:any = {}\n  keys.forEach(k=>{\n    result[k] = entity[k]\n  })\n  return result\n}\n\n/**\n * Returns an `Observable<E>` instance that \n * filters for arguments where the property \n * value matches the provided value.\n * \n * @param value The value targeted\n * @param propertyName The name of the property to contain the value\n * @param obs The Slice Object Store Observable\n * @returns Observable<E>\n */\n export function onFilteredEvent<E>(\n  value: any,\n  propertyName: string,\n  obs: Observable<E>\n): Observable<E> {\n  return obs.pipe(filter((e:any) => !!(e && e[propertyName] === value)));\n}","import { Delta, ActionTypes, Predicate } from \"./models\"\nimport { AbstractStore } from \"./AbstractStore\"\nimport { EStore } from \"./EStore\";\nimport { combineLatest } from 'rxjs';\n\nconst { isArray } = Array\n\nexport class Slice<E> extends AbstractStore<E> {\n\n\n    /* The slice element entries */\n    public override entries: Map<string, E> = new Map();\n\n    /**\n     * perform initial notification to all observers,\n     * such that operations like {@link combineLatest}{}\n     * will execute at least once.\n     * \n     * @param label The slice label\n     * @param predicate The slice predicate\n     * @param eStore The EStore instance containing the elements considered for slicing\n     * \n     * @example \n     * ```\n     *  //Empty slice\n     *  new Slice<Todo>(Todo.COMPLETE, todo=>!todo.complete);\n     *\n     *  //Initialized slice\n     *  let todos = [new Todo(false, \"You complete me!\"), \n     *               new Todo(true, \"You completed me!\")];\n     *  new Slice<Todo>(Todo.COMPLETE, todo=>!todo.complete, todos);\n     *  ```\n     */\n    constructor(\n        public label: string,\n        public predicate: Predicate<E>,\n        public eStore: EStore<E>) {\n        super();\n        const entities: E[] = eStore.allSnapshot()\n        this.config = eStore.config\n        let passed: E[] = this.test(predicate, entities);\n        const delta: Delta<E> = { type: ActionTypes.INTIALIZE, entries: passed };\n        this.post(passed);\n        this.notifyDelta.next(delta)\n    }\n\n    /**\n     * Add the element if it satisfies the predicate\n     * and notify subscribers that an element was added.\n     *\n     * @param e The element to be considered for slicing\n     */\n    post(e: E | E[]) {\n        if (isArray(e)) {\n            this.postA(e)\n        }\n        else {\n            if (this.predicate(e)) {\n                const id = (<any>e)[this.config.guidKey];\n                this.entries.set(id, e);\n                const delta: Delta<E> = { type: ActionTypes.POST, entries: [e] };\n                this.notifyAll([...Array.from(this.entries.values())], delta);\n            }\n        }\n    }\n\n    /**\n     * Add the elements if they satisfy the predicate\n     * and notify subscribers that elements were added.\n     *\n     * @param e The element to be considered for slicing\n     */\n    postN(...e: E[]) {\n        this.postA(e);\n    }\n\n    /**\n     * Add the elements if they satisfy the predicate\n     * and notify subscribers that elements were added.\n     *\n     * @param e The element to be considered for slicing\n     */\n    postA(e: E[]) {\n        const d: E[] = [];\n        e.forEach(e => {\n            if (this.predicate(e)) {\n                const id = (<any>e)[this.config.guidKey];\n                this.entries.set(id, e);\n                d.push(e);\n            }\n        });\n        const delta: Delta<E> = { type: ActionTypes.POST, entries: d };\n        this.notifyAll([...Array.from(this.entries.values())], delta);\n    }\n\n    /**\n     * Delete an element from the slice.\n     *\n     * @param e The element to be deleted if it satisfies the predicate\n     */\n    delete(e: E | E[]) {\n        if (isArray(e)) {\n            this.deleteA(e)\n        }\n        else {\n            if (this.predicate(e)) {\n                const id = (<any>e)[this.config.guidKey]\n                this.entries.delete(id)\n                const delta: Delta<E> = { type: ActionTypes.DELETE, entries: [e] }\n                this.notifyAll(Array.from(this.entries.values()), delta)\n            }\n        }\n    }\n\n    /**\n     * @param e The elements to be deleted if it satisfies the predicate\n     */\n    deleteN(...e: E[]) {\n        this.deleteA(e);\n    }\n\n    /**\n     * @param e The elements to be deleted if they satisfy the predicate\n     */\n    deleteA(e: E[]) {\n        const d: E[] = []\n        e.forEach(e => {\n            if (this.predicate(e)) {\n                const id = (<any>e)[this.config.guidKey]\n                d.push(this.entries.get(id)!)\n                this.entries.delete(id)\n            }\n        });\n        const delta: Delta<E> = { type: ActionTypes.DELETE, entries: d };\n        this.notifyAll([...Array.from(this.entries.values())], delta);\n    }\n\n    /**\n     * Update the slice when an Entity instance mutates.\n     *\n     * @param e The element to be added or deleted depending on predicate reevaluation\n     */\n    put(e: E | E[]) {\n        if (isArray(e)) {\n            this.putA(e)\n        }\n        else {\n            const id = (<any>e)[this.config.guidKey];\n            if (this.entries.get(id)) {\n                if (!this.predicate(e)) {\n                    //Note that this is a ActionTypes.DELETE because we are removing the\n                    //entity from the slice.\n                    const delta: Delta<E> = { type: ActionTypes.DELETE, entries: [e] };\n                    this.entries.delete(id);\n                    this.notifyAll([...Array.from(this.entries.values())], delta);\n                }\n            } else if (this.predicate(e)) {\n                this.entries.set(id, e);\n                const delta: Delta<E> = { type: ActionTypes.PUT, entries: [e] };\n                this.notifyAll([...Array.from(this.entries.values())], delta);\n            }    \n        }\n    }\n\n    /**\n     * Update the slice with mutated Entity instances.\n     *\n     * @param e The elements to be deleted if it satisfies the predicate\n     */\n    putN(...e: E[]) {\n        this.putA(e);\n    }\n\n    /**\n     * @param e The elements to be put\n     */\n    putA(e: E[]) {\n        const d: E[] = []; //instances to delete\n        const u: E[] = []; //instances to update\n        e.forEach(e => {\n            const id = (<any>e)[this.config.guidKey];\n            if (this.entries.get(id)) {\n                if (!this.predicate(e)) {\n                    d.push(this.entries.get(id)!);\n                }\n            } else if (this.predicate(e)) {\n                u.push(e);\n            }\n        });\n        if (d.length > 0) {\n            d.forEach(e => {\n                this.entries.delete((<any>e)[this.config.guidKey])\n            });\n            const delta: Delta<E> = { type: ActionTypes.DELETE, entries: d };\n            this.notifyAll([...Array.from(this.entries.values())], delta);\n        }\n        if (u.length > 0) {\n            u.forEach(e => {\n                this.entries.set((<any>e)[this.config.guidKey], e);\n            });\n            const delta: Delta<E> = { type: ActionTypes.PUT, entries: u };\n            this.notifyAll([...Array.from(this.entries.values())], delta);\n        }\n    }\n\n    /**\n     * Resets the slice to empty.\n     */\n    reset() {\n        let delta: Delta<E> = {\n            type: ActionTypes.RESET,\n            entries: [...Array.from(this.entries.values())]\n        };\n        this.notifyAll([], delta);\n        this.entries = new Map();\n    }\n\n    /**\n     * Utility method that applies the predicate to an array\n     * of entities and return the ones that pass the test.\n     *\n     * Used to create an initial set of values\n     * that should be part of the `Slice`.\n     *\n     * @param p\n     * @param e\n     * @return The the array of entities that pass the predicate test.\n     */\n    public test(p: Predicate<E>, e: E[]): E[] {\n        let v: E[] = [];\n        e.forEach((e: E) => {\n            if (p(e)) {\n                v.push(e);\n            }\n        });\n        return v;\n    }\n}\n","import { AbstractStore } from './AbstractStore';\nimport { StoreConfig } from './models/StoreConfig';\nimport { GUID } from './utilities';\n\nimport { ActionTypes, Predicate, Delta } from './models/';\nimport { ReplaySubject, of, Observable, combineLatest } from 'rxjs';\nimport { takeWhile, filter, switchMap } from 'rxjs/operators';\nimport { Slice } from './Slice';\n\n/**\n * This `todoFactory` code will be used to illustrate the API examples.  The following\n * utilities are used in the tests and the API Typedoc examples contained here.\n * @example Utilities for API Examples\n * ```\n * export const enum TodoSliceEnum {\n *    COMPLETE = \"Complete\",\n *    INCOMPLETE = \"Incomplete\"\n * }\n * export class Todo {\n *    constructor(\n *         public complete: boolean,\n *         public title: string,\n *         public gid?:string,\n *         public id?:string) {}\n * }\n *\n * export let todos = [new Todo(false, \"You complete me!\"), new Todo(true, \"You completed me!\")];\n *\n * export function todosFactory():Todo[] {\n *   return [new Todo(false, \"You complete me!\"), new Todo(true, \"You completed me!\")];\n * }\n * ```\n */\nexport class EStore<E> extends AbstractStore<E> {\n  /**\n   * Store constructor (Initialization with element is optional)\n   *\n   * perform initial notification to all observers,\n   * such that functions like {@link combineLatest}{}\n   * will execute at least once.\n   * \n   * @param entities The entities to initialize the store with.\n   * @param config The optional configuration instance.\n   * \n   * @example EStore<Todo> Creation\n   * ```\n   * // Initialize the Store\n   * let store: EStore<Todo> = new EStore<Todo>(todosFactory());\n   * ```\n   */\n  constructor(entities: E[] = [], config?: StoreConfig) {\n    super(config);\n    const delta: Delta<E> = { type: ActionTypes.INTIALIZE, entries: entities };\n    this.post(entities);\n    this.notifyDelta.next(delta);\n  }\n\n  /**\n   * Calls complete on all EStore {@link ReplaySubject} instances.\n   *\n   * Call destroy when disposing of the store.\n   */\n  override destroy() {\n    super.destroy();\n    this.notifyLoading.complete();\n    this.notifyActive.complete();\n    this.slices.forEach((slice) => slice.destroy());\n  }\n\n  /**\n   * Toggles the entity:\n   *\n   * If the store contains the entity\n   * it will be deleted.  If the store\n   * does not contains the entity,\n   * it is added.\n   * @param e The entity to toggle\n   * @example Toggle the Todo instance\n   * ```\n   * estore.post(todo);\n   * // Remove todo\n   * estore.toggle(todo);\n   * // Add it back\n   * estore.toggle(todo);\n   * ```\n   */\n  public toggle(e: E) {\n    if (this.contains(e)) {\n      this.delete(e);\n    } else {\n      this.post(e);\n    }\n  }\n\n  /**\n   * Notifies observers when the store is empty.\n   */\n  private notifyActive = new ReplaySubject<Map<string, E>>(1);\n\n  /**\n   * `Map` of active entties. The instance is public and can be used\n   * directly to add and remove active entities, however we recommend\n   * using the {@link addActive} and {@link deleteActive} methods.\n   */\n  public active: Map<string, E> = new Map();\n\n  /**\n   * Add multiple entity entities to active.\n   *\n   * If the entity is not contained in the store it is added\n   * to the store before it is added to `active`.\n   *\n   * Also we clone the map prior to broadcasting it with\n   * `notifyActive` to make sure we will trigger Angular\n   * change detection in the event that it maintains\n   * a reference to the `active` state `Map` instance.\n   *\n   * @example Add todo1 and todo2 as active\n   * ```\n   * addActive(todo1);\n   * addActive(todo2);\n   * ```\n   */\n  public addActive(e: E) {\n    if (this.contains(e)) {\n      this.active.set((<any>e).gid, e);\n      this.notifyActive.next(new Map(this.active));\n    } else {\n      this.post(e);\n      this.active.set((<any>e).gid, e);\n      this.notifyActive.next(new Map(this.active));\n    }\n  }\n\n  /**\n   * Delete an active entity.\n   *\n   * Also we clone the map prior to broadcasting it with\n   * `notifyActive` to make sure we will trigger Angular\n   * change detection in the event that it maintains\n   * a reference to the `active` state `Map` instance.\n   *\n   * @example Remove todo1 and todo2 as active entities\n   * ```\n   * deleteActive(todo1);\n   * deleteActive(todo2);\n   * ```\n   */\n  public deleteActive(e: E) {\n    this.active.delete((<any>e).gid);\n    this.notifyActive.next(new Map(this.active));\n  }\n\n  /**\n   * Clear / reset the active entity map.\n   *\n   * Also we clone the map prior to broadcasting it with\n   * `notifyActive` to make sure we will trigger Angular\n   * change detection in the event that it maintains\n   * a reference to the `active` state `Map` instance.\n   *\n   * @example Clear active todo instances\n   * ```\n   * store.clearActive();\n   * ```\n   */\n  clearActive() {\n    this.active.clear();\n    this.notifyActive.next(new Map(this.active));\n  }\n\n  /**\n   * Observe the active entities.\n   *\n   * @example\n   * ```\n   * let active$ = store.observeActive();\n   * ```\n   */\n  public observeActive() {\n    return this.notifyActive.asObservable();\n  }\n\n  /**\n   * Observe the active entity.\n   * @example\n     <pre>\n    let active$ = source.activeSnapshot();\n    </pre>\n  */\n  public activeSnapshot() {\n    return Array.from(this.active.values());\n  }\n\n  //================================================\n  // LOADING\n  //================================================\n\n  /**\n   * Observable of errors occurred during a load request.\n   *\n   * The error Observable should be created by the\n   * client.\n   */\n  public loadingError!: Observable<any>;\n\n  /**\n   * Notifies observers when the store is loading.\n   *\n   * This is a common pattern found when implementing\n   * `Observable` data sources.\n   */\n  private notifyLoading = new ReplaySubject<boolean>(1);\n\n  /**\n   * The current loading state.  Use loading when fetching new\n   * data for the store.  The default loading state is `true`.\n   *\n   * This is such that if data is fetched asynchronously\n   * in a service, components can wait on loading notification\n   * before attempting to retrieve data from the service.\n   *\n   * Loading could be based on a composite response.  For example\n   * when the stock and mutual funds have loaded, set loading to `false`.\n   */\n  private _loading: boolean = true;\n\n  /**\n   * Sets the current loading state and notifies observers.\n   */\n  set loading(loading: boolean) {\n    this._loading = loading;\n    this.notifyLoading.next(this._loading);\n  }\n\n  /**\n   * @return A snapshot of the loading state.\n   * @example Create a reference to the loading state\n   * ```\n   * const loading:boolean = todoStore.loading;\n   * ```\n   */\n  get loading() {\n    return this._loading;\n  }\n\n  /**\n   * Observe loading.\n   *\n   * Note that this obverable piped through\n   * `takeWhile(v->v, true), such that it will\n   * complete after each emission.\n   *\n   * See:\n   * https://fireflysemantics.medium.com/waiting-on-estore-to-load-8dcbe161613c\n   *\n   * For more details.\n   * Also note that v=>v is the same as v=>v!=false\n   * \n   * @example\n   * ```\n   * const observeLoadingHandler: Observer<boolean> = {\n   *   complete: () => {\n   *     console.log(`Data Loaded and Observable Marked as Complete`);\n   *   }, // completeHandler\n   *   error: () => {\n   *     console.log(`Any Errors?`);\n   *   }, // errorHandler\n   *   next: (l) => {\n   *     console.log(`Data loaded and loading is ${l}`);\n   *   },\n   * };\n   *\n   * const observeLoadingResubscribeHandler: Observer<boolean> = {\n   *   complete: () => {\n   *     console.log(`Data Loaded and Resubscribe Observable Marked as Complete`);\n   *   }, // completeHandler\n   *   error: () => {\n   *     console.log(`Any Resubscribe Errors?`);\n   *   }, // errorHandler\n   *   next: (l) => {\n   *     console.log(`Data loaded and resusbscribe loading  value is ${l}`);\n   *   },\n   * };\n   *\n   * const todoStore: EStore<Todo> = new EStore();\n   * //============================================\n   * // Loading is true by default\n   * //============================================\n   * console.log(`The initial value of loading is ${todoStore.loading}`);\n   * //============================================\n   * // Observe Loading\n   * //============================================\n   * let loading$: Observable<boolean> = todoStore.observeLoading();\n   * loading$.subscribe((l) => console.log(`The value of loading is ${l}`));\n   *\n   * todoStore.loading = false;\n   * loading$.subscribe(observeLoadingHandler);\n   * //============================================\n   * // The subscription no longer fires\n   * //============================================\n   * todoStore.loading = true;\n   * todoStore.loading = false;\n   *\n   * //============================================\n   * // The subscription no longer fires,\n   * // so if we want to observe loading again\n   * // resusbscribe.\n   * //============================================\n   * todoStore.loading = true;\n   * loading$ = todoStore.observeLoading();\n   * loading$.subscribe(observeLoadingResubscribeHandler);\n   * todoStore.loading = false;\n   * ```\n   */\n  public observeLoading() {\n    return this.notifyLoading.asObservable().pipe(takeWhile((v) => v, true));\n  }\n\n  /**\n   * Notfiies when loading has completed.\n   */\n  public observeLoadingComplete() {\n    return this.observeLoading().pipe(\n      filter((loading) => loading == false),\n      switchMap(() => of(true))\n    );\n  }\n\n  //================================================\n  // SEARCHING\n  //================================================\n  /**\n   * Observable of errors occurred during a search request.\n   *\n   * The error Observable should be created by the\n   * client.\n   */\n  public searchError!: Observable<any>;\n\n  /**\n   * Notifies observers that a search is in progress.\n   *\n   * This is a common pattern found when implementing\n   * `Observable` data sources.\n   */\n  private notifySearching = new ReplaySubject<boolean>(1);\n\n  /**\n   * The current `searching` state.  Use `searching`\n   * for example to display a spinnner\n   * when performing a search.\n   * The default `searching` state is `false`.\n   */\n  private _searching: boolean = false;\n\n  /**\n   * Sets the current searching state and notifies observers.\n   */\n  set searching(searching: boolean) {\n    this._searching = searching;\n    this.notifySearching.next(this._searching);\n  }\n\n  /**\n   * @return A snapshot of the searching state.\n   */\n  get searching() {\n    return this._searching;\n  }\n\n  /**\n   * Observe searching.\n   * @example\n     <pre>\n    let searching$ = source.observeSearching();\n    </pre>\n  \n    Note that this obverable piped through\n    `takeWhile(v->v, true), such that it will \n    complete after each emission.\n  \n    See:\n    https://medium.com/@ole.ersoy/waiting-on-estore-to-load-8dcbe161613c\n  \n    For more details.\n  */\n  public observeSearching(): Observable<boolean> {\n    return this.notifySearching.asObservable().pipe(takeWhile((v) => v, true));\n  }\n\n  /**\n   * Notfiies when searching has completed.\n   */\n  public observeSearchingComplete(): Observable<boolean> {\n    return this.observeSearching().pipe(\n      filter((searching) => searching == false),\n      switchMap(() => of(true))\n    );\n  }\n\n  /**\n   * Store slices\n   */\n  private slices: Map<string, Slice<E>> = new Map();\n\n  /**\n   * Adds a slice to the store and keys it by the slices label.\n   *\n   * @param p\n   * @param label\n   * \n   * @example Setup a Todo Slice for COMPLETE Todos\n```\nsource.addSlice(todo => todo.complete, TodoSlices.COMPLETE);\n```\n   */\n  addSlice(p: Predicate<E>, label: string) {\n    const slice: Slice<E> = new Slice(label, p, this);\n    this.slices.set(slice.label, slice);\n  }\n\n  /**\n   * Remove a slice\n   * @param label The label identifying the slice\n   * \n   * @example Remove the TodoSlices.COMPLETE Slice\n```\nsource.removeSlice(TodoSlices.COMPLETE);\n```\n   */\n  removeSlice(label: string) {\n    this.slices.delete(label);\n  }\n\n  /**\n   * Get a slice\n   * @param label The label identifying the slice\n   * @return The Slice instance or undefined \n   * \n   * @example Get the TodoSlices.COMPLETE slice\n```\nsource.getSlice(TodoSlices.COMPLETE);\n```\n   */\n  getSlice(label: string): Slice<E> | undefined {\n    return this.slices.get(label);\n  }\n\n  /**\n   * Post (Add a new) element(s) to the store.\n   * @param e An indiidual entity or an array of entities\n   * @example Post a Todo instance.\n   *\n   *```\n   * store.post(todo);\n   *```\n   */\n  post(e: E | E[]) {\n    if (!Array.isArray(e)) {\n      const guid: string = (<any>e)[this.GUID_KEY]\n        ? (<any>e)[this.GUID_KEY]\n        : GUID();\n      (<any>e)[this.GUID_KEY] = guid;\n      this.entries.set(guid, e);\n      this.updateIDEntry(e);\n      Array.from(this.slices.values()).forEach((s) => {\n        s.post(e);\n      });\n      //Create a new array reference to trigger Angular change detection.\n      let v: E[] = [...Array.from(this.entries.values())];\n      const delta: Delta<E> = { type: ActionTypes.POST, entries: [e] };\n      this.notifyAll(v, delta);\n    } else {\n      this.postA(e);\n    }\n  }\n\n  /**\n   * Post N entities to the store.\n   * @param ...e\n   * @example Post two Todo instances.\n   * ```\n   * store.post(todo1, todo2);\n   * ```\n   */\n  postN(...e: E[]) {\n    e.forEach((e) => {\n      const guid: string = (<any>e)[this.GUID_KEY]\n        ? (<any>e)[this.GUID_KEY]\n        : GUID();\n      (<any>e)[this.GUID_KEY] = guid;\n      this.entries.set(guid, e);\n      this.updateIDEntry(e);\n    });\n    Array.from(this.slices.values()).forEach((s) => {\n      s.postA(e);\n    });\n    //Create a new array reference to trigger Angular change detection.\n    let v: E[] = [...Array.from(this.entries.values())];\n    const delta: Delta<E> = { type: ActionTypes.POST, entries: e };\n    this.notifyAll(v, delta);\n  }\n\n  /**\n   * Post (Add) an array of elements to the store.\n   * @param e\n   * @example Post a Todo array.\n   *\n   * ```\n   * store.post([todo1, todo2]);\n   * ```\n   */\n  postA(e: E[]) {\n    this.postN(...e);\n  }\n\n  /**\n   * Put (Update) an entity.\n   * @param e\n   * @example Put a Todo instance.\n   * ```\n   * store.put(todo1);\n   * ```\n   */\n  put(e: E | E[]) {\n    if (!Array.isArray(e)) {\n      let id: string = (<any>e)[this.GUID_KEY];\n      this.entries.set(id, e);\n      this.updateIDEntry(e);\n      let v: E[] = [...Array.from(this.entries.values())];\n      this.notify.next(v);\n      const delta: Delta<E> = { type: ActionTypes.PUT, entries: [e] };\n      this.notifyDelta.next(delta);\n      Array.from(this.slices.values()).forEach((s) => {\n        s.put(e);\n      });\n    } else {\n      this.putA(e);\n    }\n  }\n\n  /**\n   * Put (Update) an element or add an element that was read from a persistence source\n   * and thus already has an assigned global id`.\n   * @param e The enetity instances to update.\n   * @example Put N Todo instances.\n   *\n   * ```\n   * store.put(todo1, todo2);\n   * ```\n   */\n  putN(...e: E[]) {\n    this.putA(e);\n  }\n\n  /**\n   * Put (Update) the array of enntities.\n   * @param e The array of enntities to update\n   * @example Put an array of Todo instances.\n   * ```\n   * store.put([todo1, todo2]);\n   * ```\n   */\n  putA(e: E[]) {\n    e.forEach((e) => {\n      let guid: string = (<any>e)[this.GUID_KEY];\n      this.entries.set(guid, e);\n      this.updateIDEntry(e);\n    });\n    //Create a new array reference to trigger Angular change detection.\n    let v: E[] = [...Array.from(this.entries.values())];\n    this.notify.next(v);\n    const delta: Delta<E> = { type: ActionTypes.PUT, entries: e };\n    this.notifyDelta.next(delta);\n    Array.from(this.slices.values()).forEach((s) => {\n      s.putA(e);\n    });\n  }\n\n  /**\n   * Delete (Update) the array of elements.\n   * @param e\n   * @example Delete todo1.\n   * ```\n   * store.delete(todo1]);\n   * ```\n   */\n  delete(e: E | E[]) {\n    if (!Array.isArray(e)) {\n      this.deleteActive(e);\n      const guid = (<any>e)[this.GUID_KEY];\n      this.entries.delete(guid);\n      this.deleteIDEntry(e);\n      Array.from(this.slices.values()).forEach((s) => {\n        s.entries.delete(guid);\n      });\n      //Create a new array reference to trigger Angular change detection.\n      let v: E[] = [...Array.from(this.entries.values())];\n      const delta: Delta<E> = { type: ActionTypes.DELETE, entries: [e] };\n      this.notifyAll(v, delta);\n      Array.from(this.slices.values()).forEach((s) => {\n        s.delete(e);\n      });\n    } else {\n      this.deleteA(e);\n    }\n  }\n\n  /**\n   * Delete N elements.\n   * @param ...e\n   * @example Delete N Todo instance argument.\n   * ```\n   * store.deleteN(todo1, todo2);\n   * ```\n   */\n  deleteN(...e: E[]) {\n    this.deleteA(e);\n  }\n\n  /**\n   * Delete an array of elements.\n   * @param e The array of instances to be deleted\n   * @example Delete the array of Todo instances.\n   * ```\n   * store.deleteA([todo1, todo2]);\n   * ```\n   */\n  deleteA(e: E[]) {\n    e.forEach((e) => {\n      this.deleteActive(e);\n      const guid = (<any>e)[this.GUID_KEY];\n      this.entries.delete(guid);\n      this.deleteIDEntry(e);\n      Array.from(this.slices.values()).forEach((s) => {\n        s.entries.delete(guid);\n      });\n    });\n    //Create a new array reference to trigger Angular change detection.\n    let v: E[] = [...Array.from(this.entries.values())];\n    const delta: Delta<E> = { type: ActionTypes.DELETE, entries: e };\n    this.notifyAll(v, delta);\n    Array.from(this.slices.values()).forEach((s) => {\n      s.deleteA(e);\n    });\n  }\n\n  /**\n   * Delete elements by {@link Predicate}.\n   * @param p The predicate.\n   * @example Delete the Todo instances.\n   * ```\n   * store.delete(todo1, todo2);\n   * ```\n   */\n  deleteP(p: Predicate<E>) {\n    const d: E[] = [];\n    Array.from(this.entries.values()).forEach((e) => {\n      if (p(e)) {\n        d.push(e);\n        const id = (<any>e)[this.GUID_KEY];\n        this.entries.delete(id);\n        this.deleteActive(e);\n        this.deleteIDEntry(e);\n      }\n    });\n    //Create a new array reference to trigger Angular change detection.\n    let v: E[] = [...Array.from(this.entries.values())];\n    const delta: Delta<E> = { type: ActionTypes.DELETE, entries: d };\n    this.notifyAll(v, delta);\n    Array.from(this.slices.values()).forEach((s) => {\n      s.deleteA(d);\n    });\n  }\n\n  /**\n   * If the entity has the `id` key initialized with a value,\n   * then also add the entity to the `idEntries`.\n   *\n   * @param e The element to be added to the `idEntries`.\n   */\n  private updateIDEntry(e: E) {\n    if ((<any>e)[this.ID_KEY]) {\n      this.idEntries.set((<any>e)[this.ID_KEY], e);\n    }\n  }\n\n  /**\n   * If the entity has the `id` key initialized with a value,\n   * then also delete the entity to the `idEntries`.\n   *\n   * @param e The element to be added to the `idEntries`.\n   */\n  private deleteIDEntry(e: E) {\n    if ((<any>e)[this.ID_KEY]) {\n      this.idEntries.delete((<any>e)[this.ID_KEY]);\n    }\n  }\n\n  /**\n   * Resets the store and all contained slice instances to empty.\n   * Also perform delta notification that sends all current store entries.\n   * The ActionType.RESET code is sent with the delta notification.  Slices\n   * send their own delta notification.\n   *\n   * @example Reset the store.\n   * ```\n   * store.reset();\n   * ```\n   */\n  reset() {\n    const delta: Delta<E> = {\n      type: ActionTypes.RESET,\n      entries: Array.from(this.entries.values()),\n    };\n    this.notifyAll([], delta);\n    this.entries = new Map();\n    Array.from(this.slices.values()).forEach((s) => {\n      s.reset();\n    });\n  }\n\n  /**\n   * Call all the notifiers at once.\n   *\n   * @param v\n   * @param delta\n   */\n  protected override notifyAll(v: E[], delta: Delta<E>) {\n    super.notifyAll(v, delta);\n    this.notifyLoading.next(this.loading);\n  }\n}\n","import { ReplaySubject, Observable } from 'rxjs';\n\n/**\n * Initialize hte store with this.\n */\nexport interface ValueReset {\n  value: any;\n  reset?: any;\n}\n\n/**\n * OStore Key Value Reset\n */\nexport interface ObsValueReset {\n  value: any;\n  reset?: any;\n  obs: Observable<any>;\n}\n\nexport interface KeyObsValueReset {\n  [key: string]: ObsValueReset;\n}\n\nexport interface OStoreStart {\n  [key: string]: ValueReset;\n}\n\nexport class OStore<E extends KeyObsValueReset> {\n  /**\n   * Start keys and values\n   * passed in via constructor.\n   */\n  public S!: E;\n\n  constructor(start: OStoreStart) {\n    if (start) {\n      this.S = <E>start;\n      const keys = Object.keys(start);\n      keys.forEach((k) => {\n        const ovr = start[k] as ObsValueReset;\n        this.post(ovr, ovr.value);\n        ovr.obs = this.observe(ovr)!;\n      });\n    }\n  }\n\n  /**\n   * Reset the state of the OStore to the\n   * values or reset provided in the constructor\n   * {@link OStoreStart} instance.\n   */\n  public reset() {\n    if (this.S) {\n      const keys = Object.keys(this.S);\n      keys.forEach((k) => {\n        const ovr: ObsValueReset = this.S[k];\n        this.put(ovr, ovr.reset ? ovr.reset : ovr.value);\n      });\n    }\n  }\n\n  /**\n   * Map of Key Value pair entries\n   * containing values store in this store.\n   */\n  public entries: Map<any, any> = new Map();\n\n  /**\n   * Map of replay subject id to `ReplaySubject` instance.\n   */\n  private subjects: Map<any, ReplaySubject<any>> = new Map();\n\n  /**\n   * Set create a key value pair entry and creates a\n   * corresponding replay subject instance that will\n   * be used to broadcast updates.\n   *\n   * @param key The key identifying the value\n   * @param value The value\n   */\n  private post(key: ObsValueReset, value: any) {\n    this.entries.set(key, value);\n    this.subjects.set(key, new ReplaySubject(1));\n    //Emit immediately so that Observers can receive\n    //the value straight away.\n    const subject = this.subjects.get(key);\n    if (subject) {\n      subject.next(value);\n    }\n  }\n  /**\n   * Update a value and notify subscribers.\n   *\n   * @param key\n   * @param value\n   */\n  public put(key: any, value: any) {\n    this.entries.set(key, value);\n    const subject = this.subjects.get(key);\n    if (subject) {\n      subject.next(value);\n    }\n  }\n\n  /**\n   * Deletes both the value entry and the corresponding {@link ReplaySubject}.\n   * Will unsubscribe the {@link ReplaySubject} prior to deleting it,\n   * severing communication with corresponding {@link Observable}s.\n   *\n   * @param key\n   */\n  public delete(key: any) {\n    //===========================================\n    // Delete the entry\n    //===========================================\n    this.entries.delete(key);\n    const subject = this.subjects.get(key);\n    if (subject) {\n      subject.next(undefined);\n    }\n  }\n\n  /**\n   * Clear all entries.  \n   * \n   * Note that \n   * t