doneit-web/src/app/store/despacho-store.service.ts

import { Injectable } from '@angular/core';
import { localstoreService } from './localstore.service'
import { AES, enc, SHA1 }  from  'crypto-js'

@Injectable({
  providedIn: 'root'
})
export class DespachoStoreService {

  // main data
  private _list: [] = []
  // local storage keyName
  private keyName: string; 
  private _count = 0

  constructor() {

    this.keyName = (SHA1(this.constructor.name+ 'home/eventSource')).toString()
    
    
    setTimeout(()=>{ 
      let restore = localstoreService.get(this.keyName, {})
      this._list = restore.eventsList || []
      this._count = restore.count || 0
    }, 10)

  }

  get list() {
    return this._list || []
  }

  get count() {
    return this._count
  }
  set count(value) {
    this._count = value
  }

  reset(eventsList: any) {
    this._list = eventsList

    this.count = this._list.length
    this.save(this._list)
  }

  private save(eventsList: any) {
    setTimeout(()=>{ 
      localstoreService.set(this.keyName,{
        eventsList,
        count: this._list.length
      })
    }, 10)
    
  }

}

export const DespachoStore = new DespachoStoreService()