Fix everything broken by recent Discord update (#3177)

Co-authored-by: sadan <117494111+sadan4@users.noreply.github.com>
Co-authored-by: Vendicated <vendicated@riseup.net>

src/plugins/_api/menuItemDemangler.ts

@@ -0,0 +1,68 @@
+/*
+ * Vencord, a Discord client mod
+ * Copyright (c) 2025 Vendicated and contributors
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+import { Devs } from "@utils/constants";
+import { canonicalizeMatch } from "@utils/patches";
+import definePlugin from "@utils/types";
+
+// duplicate values have multiple branches with different types. Just include all to be safe
+const nameMap = {
+    radio: "MenuRadioItem",
+    separator: "MenuSeparator",
+    checkbox: "MenuCheckboxItem",
+    groupstart: "MenuGroup",
+
+    control: "MenuControlItem",
+    compositecontrol: "MenuControlItem",
+
+    item: "MenuItem",
+    customitem: "MenuItem",
+};
+
+export default definePlugin({
+    name: "MenuItemDemanglerAPI",
+    description: "Demangles Discord's Menu Item module",
+    authors: [Devs.Ven],
+    required: true,
+    patches: [
+        {
+            find: '"Menu API',
+            replacement: {
+                match: /function.{0,80}type===(\i\.\i)\).{0,50}navigable:.+?Menu API/s,
+                replace: (m, mod) => {
+                    const nameAssignments = [] as string[];
+
+                    // if (t.type === m.MenuItem)
+                    const typeCheckRe = canonicalizeMatch(/\(\i\.type===(\i\.\i)\)/g);
+                    // push({type:"item"})
+                    const pushTypeRe = /type:"(\w+)"/g;
+
+                    let typeMatch: RegExpExecArray | null;
+                    // for each if (t.type === ...)
+                    while ((typeMatch = typeCheckRe.exec(m)) !== null) {
+                        // extract the current menu item
+                        const item = typeMatch[1];
+                        // Set the starting index of the second regex to that of the first to start
+                        // matching from after the if
+                        pushTypeRe.lastIndex = typeCheckRe.lastIndex;
+                        // extract the first type: "..."
+                        const type = pushTypeRe.exec(m)?.[1];
+                        if (type && type in nameMap) {
+                            const name = nameMap[type];
+                            nameAssignments.push(`Object.defineProperty(${item},"name",{value:"${name}"})`);
+                        }
+                    }
+                    if (nameAssignments.length < 6) {
+                        console.warn("[MenuItemDemanglerAPI] Expected to at least remap 6 items, only remapped", nameAssignments.length);
+                    }
+
+                    // Merge all our redefines with the actual module
+                    return `${nameAssignments.join(";")};${m}`;
+                },
+            },
+        },
+    ],
+});