Migration of experimentalWarnings to ES6 modules

package.json

@@ -155,6 +155,7 @@
           "src/components/refreshdialog/refreshdialog.js",
           "src/components/sanatizefilename.js",
           "src/components/scrollManager.js",
+          "src/plugins/experimentalWarnings/plugin.js",
           "src/plugins/htmlVideoPlayer/plugin.js",
           "src/components/search/searchfields.js",
           "src/components/search/searchresults.js",

src/plugins/experimentalWarnings/plugin.js

@@ -1,22 +1,25 @@
-define(['connectionManager', 'globalize', 'userSettings', 'apphost'], function (connectionManager, globalize, userSettings, appHost) {
+import globalize from 'globalize';
-    'use strict';
+import * as userSettings from 'userSettings';
+import appHost from 'apphost';
 
-    // TODO: Replace with date-fns
+/*eslint prefer-const: "error"*/
-    // https://stackoverflow.com/questions/6117814/get-week-of-year-in-javascript-like-in-php
+
-    function getWeek(date) {
+// TODO: Replace with date-fns
-        var d = new Date(Date.UTC(date.getFullYear(), date.getMonth(), date.getDate()));
+// https://stackoverflow.com/questions/6117814/get-week-of-year-in-javascript-like-in-php
-        var dayNum = d.getUTCDay() || 7;
+function getWeek(date) {
+    const d = new Date(Date.UTC(date.getFullYear(), date.getMonth(), date.getDate()));
+    const dayNum = d.getUTCDay() || 7;
     d.setUTCDate(d.getUTCDate() + 4 - dayNum);
-        var yearStart = new Date(Date.UTC(d.getUTCFullYear(), 0, 1));
+    const yearStart = new Date(Date.UTC(d.getUTCFullYear(), 0, 1));
     return Math.ceil((((d - yearStart) / 86400000) + 1) / 7);
-    }
+}
 
-    function showMessage(text, userSettingsKey, appHostFeature) {
+function showMessage(text, userSettingsKey, appHostFeature) {
     if (appHost.supports(appHostFeature)) {
         return Promise.resolve();
     }
 
-        var now = new Date();
+    const now = new Date();
 
     // TODO: Use date-fns
     userSettingsKey += now.getFullYear() + '-w' + getWeek(now);
@@ -28,32 +31,33 @@ define(['connectionManager', 'globalize', 'userSettings', 'apphost'], function (
     return new Promise(function (resolve, reject) {
         userSettings.set(userSettingsKey, '1', false);
 
-            require(['alert'], function (alert) {
+        import('alert').then(({default: alert}) => {
             return alert(text).then(resolve, resolve);
         });
     });
-    }
+}
 
-    function showBlurayMessage() {
+function showBlurayMessage() {
     return showMessage(globalize.translate('UnsupportedPlayback'), 'blurayexpirementalinfo', 'nativeblurayplayback');
-    }
+}
 
-    function showDvdMessage() {
+function showDvdMessage() {
     return showMessage(globalize.translate('UnsupportedPlayback'), 'dvdexpirementalinfo', 'nativedvdplayback');
-    }
+}
 
-    function showIsoMessage() {
+function showIsoMessage() {
     return showMessage(globalize.translate('UnsupportedPlayback'), 'isoexpirementalinfo', 'nativeisoplayback');
-    }
+}
 
-    function ExpirementalPlaybackWarnings() {
+class ExpirementalPlaybackWarnings {
+    constructor() {
         this.name = 'Experimental playback warnings';
         this.type = 'preplayintercept';
         this.id = 'expirementalplaybackwarnings';
     }
 
-    ExpirementalPlaybackWarnings.prototype.intercept = function (options) {
+    intercept(options) {
-        var item = options.item;
+        const item = options.item;
         if (!item) {
             return Promise.resolve();
         }
@@ -71,7 +75,7 @@ define(['connectionManager', 'globalize', 'userSettings', 'apphost'], function (
         }
 
         return Promise.resolve();
-    };
+    }
+}
 
-    return ExpirementalPlaybackWarnings;
+export default ExpirementalPlaybackWarnings;
-});