#32 Preparing storage provider

src/javascript/settings/storageProvider.js

@@ -0,0 +1,53 @@
+const { assigned } = require("../utils/helpers")
+
+class StorageProviderChromium {
+
+    storeData(key, value, callback) {
+    }
+
+    getData(key, defaultValue, callback) {
+    }
+
+    getStorage() {
+        if (assigned(chrome.storage.sync)) {
+            return chrome.storage.sync;
+        }
+
+        return chrome.storage.local;
+    }
+}
+
+
+class StorageProviderFirefox {
+
+    storeData(key, value, callback) {
+    }
+
+    getData(key, defaultValue, callback) {
+    }
+
+    getStorage() {
+    }
+}
+
+let __storageProvieder = undefined;
+
+function createStorageProvider() {
+    // chrome based browser
+    if (assigned(chrome?.app)) {
+        __storageProvieder = new StorageProviderChromium();
+    }
+    // firefox
+    else {
+        __storageProvieder = new StorageProviderFirefox();
+    }
+
+}
+
+export function globalStorageProvider() {
+    if (!assigned(__storageProvieder)) {
+        createStorageProvider();
+    }
+
+    return __storageProvieder;
+}