feat: migration to TypeScript part 3

Co-authored-by: Su-Yong <simssy2205@gmail.com>

plugins/downloader/menu.ts

@@ -0,0 +1,45 @@
+import { dialog } from 'electron';
+
+import { downloadPlaylist } from './back';
+import { defaultMenuDownloadLabel, getFolder, presets } from './utils';
+import config from './config';
+
+import { MenuTemplate } from '../../menu';
+
+export default (): MenuTemplate => [
+  {
+    label: defaultMenuDownloadLabel,
+    click: () => downloadPlaylist(),
+  },
+  {
+    label: 'Choose download folder',
+    click() {
+      const result = dialog.showOpenDialogSync({
+        properties: ['openDirectory', 'createDirectory'],
+        defaultPath: getFolder(config.get('downloadFolder')),
+      });
+      if (result) {
+        config.set('downloadFolder', result[0]);
+      } // Else = user pressed cancel
+    },
+  },
+  {
+    label: 'Presets',
+    submenu: Object.keys(presets).map((preset) => ({
+      label: preset,
+      type: 'radio',
+      checked: config.get('preset') === preset,
+      click() {
+        config.set('preset', preset);
+      },
+    })),
+  },
+  {
+    label: 'Skip existing files',
+    type: 'checkbox',
+    checked: config.get('skipExisting'),
+    click(item) {
+      config.set('skipExisting', item.checked);
+    },
+  },
+];