import { BaseStore } from 'base-store';
import { FastStore } from 'fast-store';
const store = require('store');
const fastStore = new FastStore();

export class Store extends BaseStore {
  constructor() {
    super()
  }

  set (key: string, data: any, fast?:boolean) {
    if(fast) fastStore.set(key, data);
    store.set(key, data);
    return Promise.resolve(data);
  }

  get (key: string, fast?:boolean) {
    if(fast){
      const fastValue = fastStore.get(key);
      if(fastValue) return Promise.resolve(fastValue);
      const data = store.get(key);
      fastStore.set(key, data);
      return Promise.resolve(data);
    }else{
      const data = store.get(key);
      return Promise.resolve(data);
    }
  }

  remove (key: string) {
    fastStore.remove(key);
    store.remove(key);
    return Promise.resolve();
  }

  clear () {
    fastStore.clear();
    store.clearAll();
    return Promise.resolve();
  }

  base (storeName, fast?:boolean) {
    return {
      set: (key: string, data) => {
        return this.get(storeName).then((res) => {
          res = res || {};
          res[key] = data;
          return this.set(storeName, res).then(() => {
            return data;
          });
        });
      },
      get: (key: string) => {
        return this.get(storeName).then((res) => {
          res = res || {};
          return res[key];
        });
      },
      getAll: () => {
        return this.get(storeName).then((res) => {
          return res || {};
        });
      },
      remove: (key: string) => {
        return this.get(storeName).then((res) => {
          res[key] = null;
          delete res[key];
          return this.set(storeName, res);
        });
      },
      clear: () => {
        return this.clear();
      }
    }
  }

  // 页面存储
  page = (pageName:string) => {
    return this.base('page.' + pageName);
  }
}