Added adblock for "autoplay" ad tile on home screen

YouTube "recently" added a tile which is automatically selected and will
autoplay an ad on launch. This removes that tile

assets/appinfo.json

@@ -1,6 +1,6 @@
 {
   "id": "youtube.leanback.v4",
-  "version": "0.3.1",
+  "version": "0.3.2",
   "vendor": "My Company",
   "type": "web",
   "main": "index.html",
@@ -28,4 +28,4 @@
   "dialAppName": "YouTube",
   "disableBackHistoryAPI": true,
   "supportGIP": true
-}
+}

package.json

@@ -1,6 +1,6 @@
 {
   "name": "youtube-webos",
-  "version": "0.3.1",
+  "version": "0.3.2",
   "description": "Youtube App without ADs",
   "main": "index.js",
   "scripts": {
@@ -51,4 +51,4 @@
   "lint-staged": {
     "*": "prettier --write --ignore-unknown"
   }
-}
+}

src/adblock.js

@@ -24,10 +24,30 @@ JSON.parse = function () {
       ?.sectionListRenderer?.contents &&
     configRead('enableAdBlock')
   ) {
-    r.contents.tvBrowseRenderer.content.tvSurfaceContentRenderer.content.sectionListRenderer.contents =
-      r.contents.tvBrowseRenderer.content.tvSurfaceContentRenderer.content.sectionListRenderer.contents.filter(
-        (elm) => !elm.tvMastheadRenderer
-      );
+    // remove masthead
+    let sectionContents = r.contents.tvBrowseRenderer.content.tvSurfaceContentRenderer.content.sectionListRenderer.contents;
+    sectionContents = sectionContents.filter(
+      (elm) => !elm.tvMastheadRenderer
+    );
+
+    // drop "autoplay" ad tile from home screen
+    let replacementSections = [];
+    for (let i = 0; i < sectionContents.length; ++i) {
+      let section = sectionContents[i];
+      let replacementItems = [];
+      let items = section.shelfRenderer.content.horizontalListRenderer.items;
+      for (let i = 0; i < items.length; ++i) {
+        let item = items[i];
+        // remove ad slot
+        if ("adSlotRenderer" in item) {
+          continue
+        }
+        replacementItems.push(item);
+      }
+      section.shelfRenderer.content.horizontalListRenderer.items = replacementItems;
+      replacementSections.push(section);
+    }
+    r.contents.tvBrowseRenderer.content.tvSurfaceContentRenderer.content.sectionListRenderer.contents = replacementSections;
   }
 
   return r;