const ElectronStore = require('electron-store');
const eStore = new ElectronStore();

const PERSIST_KEY_NAME = '_persistKeys';

const keyList = {
  add(key) {
    const keys = this.get();
    if (this.has(key)) {
      return;
    }
    keys.push(key);
    eStore.set(PERSIST_KEY_NAME, keys.join(','));
  },
  get() {
    return eStore
      .get(PERSIST_KEY_NAME, '')
      .split(',')
      .filter((a) => a);
  },
  has(key, keys) {
    return (keys || this.get()).find((iKey) => iKey === key);
  },
  remove(key) {
    const keys = this.get();
    eStore.set(PERSIST_KEY_NAME, keys.filter((iKey) => iKey !== key).join(','));
  },
};

const storage = {
  getItem(key) {
    return eStore.get(key);
  },
  setItem(key, value) {
    if (key === PERSIST_KEY_NAME) return;
    keyList.add(key);
    return eStore.set(key, value);
  },
  removeItem(key) {
    keyList.remove(key);
    return eStore.delete(key);
  },
  getAllItem() {
    const keys = keyList.get();
    const hash = {
      keyList: keys,
    };
    keys.forEach((key) => {
      hash[key] = eStore.get(key);
    });
    return hash;
  },
};

module.exports.storage = storage;
module.exports.initialStorageEvents = function initialStorageEvents(ipcMain) {
  ipcMain.handle('storage:set', (_, { key, value }) => {
    storage.setItem(key, value);
  });

  ipcMain.handle('storage:remove', (_, { key }) => {
    storage.removeItem(key);
  });

  // ipcMain.handle('storage:getAll', () => {
  //   return storage.getAllItem();
  // });
};