ohayolibs/packages/cache/src/local-storage-cache.service.ts

Ohayo is a set of essential modules for ohayojp.

import { Platform } from '@angular/cdk/platform';
import { inject, InjectionToken } from '@angular/core';
import { ICache, ICacheStore } from './interface';

export const DC_STORE_STORAGE_TOKEN = new InjectionToken<ICacheStore>('DC_STORE_STORAGE_TOKEN', {
  providedIn: 'root',
  factory: () => new LocalStorageCacheService(inject(Platform)),
});

export class LocalStorageCacheService implements ICacheStore {
  constructor(private platform: Platform) {}

  get(key: string): ICache | null {
    if (!this.platform.isBrowser) {
      return null;
    }
    return JSON.parse(localStorage.getItem(key) || 'null') || null;
  }

  set(key: string, value: ICache): boolean {
    if (!this.platform.isBrowser) {
      return true;
    }
    localStorage.setItem(key, JSON.stringify(value));
    return true;
  }

  remove(key: string): void {
    if (!this.platform.isBrowser) {
      return;
    }
    localStorage.removeItem(key);
  }
}