move common electron code to jslib

src/electron/services/electronStorage.service.ts

@@ -0,0 +1,35 @@
+import { StorageService } from '../../abstractions/storage.service';
+
+import { ConstantsService } from '../../services/constants.service';
+
+// tslint:disable-next-line
+const Store = require('electron-store');
+
+export class ElectronStorageService implements StorageService {
+    private store: any;
+
+    constructor() {
+        const storeConfig: any = {
+            defaults: {} as any,
+            name: 'data',
+        };
+        // Default lock options to "on restart".
+        storeConfig.defaults[ConstantsService.lockOptionKey] = -1;
+        this.store = new Store(storeConfig);
+    }
+
+    get<T>(key: string): Promise<T> {
+        const val = this.store.get(key) as T;
+        return Promise.resolve(val != null ? val : null);
+    }
+
+    save(key: string, obj: any): Promise<any> {
+        this.store.set(key, obj);
+        return Promise.resolve();
+    }
+
+    remove(key: string): Promise<any> {
+        this.store.delete(key);
+        return Promise.resolve();
+    }
+}