[feature] adding update module

js/update.js

@@ -0,0 +1,52 @@
+var update = (function() {
+
+  var _update_100 = function(data) {
+    var time = new Date().getTime();
+    data.bookmarks.forEach(function(arrayItem, index) {
+      time = time + 1;
+      arrayItem.timeStamp = time;
+    });
+    data.version = 1.00;
+    return data;
+  };
+
+  var _update_200 = function(data) {
+    state.change({
+      path: "layout.theme",
+      value: data.theme
+    });
+    data = {
+      state: state.get(),
+      bookmarks: data.bookmarks
+    };
+    data.version = 2.00;
+    return data;
+  };
+
+  // var _update_300 = function(data) {
+  //   data.version = 3.00;
+  //   return data;
+  // };
+
+  function render(data) {
+    if (!("version" in data)) {
+      console.log("\trunning update", 1.00);
+      data = _update_100(data);
+    };
+    if (data.version < 2.00) {
+      console.log("\trunning update", 2.00);
+      data = _update_200(data);
+    };
+    // if (data.version < 3.00) {
+    //   console.log("\t# running update", 3.00);
+    //   data = _update_300(data);
+    // };
+    return data;
+  };
+
+  // exposed methods
+  return {
+    render: render
+  };
+
+})();