Improve SupportHelper

- improve update check when entering support channel
- add "Run Snippet" button to venbot messages with codeblock
- add "Send /vencord-debug" button to messages that contain /vencord-debug
- add "Update Now" button to messages by venbot and in #known-issues that contain "update"
- add some common issues like RPC disabled / NoRPC enabled to /vencord-debug
- split plugin list into separate /vencord-plugins command to reduce size & avoid >2000 chars errors

src/utils/misc.ts

@@ -0,0 +1,112 @@
+/*
+ * Vencord, a modification for Discord's desktop app
+ * Copyright (c) 2022 Vendicated and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import { Clipboard, Toasts } from "@webpack/common";
+
+import { DevsById } from "./constants";
+
+/**
+ * Calls .join(" ") on the arguments
+ * classes("one", "two") => "one two"
+ */
+export function classes(...classes: Array<string | null | undefined>) {
+    return classes.filter(Boolean).join(" ");
+}
+
+/**
+ * Returns a promise that resolves after the specified amount of time
+ */
+export function sleep(ms: number): Promise<void> {
+    return new Promise(r => setTimeout(r, ms));
+}
+
+export function copyWithToast(text: string, toastMessage = "Copied to clipboard!") {
+    if (Clipboard.SUPPORTS_COPY) {
+        Clipboard.copy(text);
+    } else {
+        toastMessage = "Your browser does not support copying to clipboard";
+    }
+    Toasts.show({
+        message: toastMessage,
+        id: Toasts.genId(),
+        type: Toasts.Type.SUCCESS
+    });
+}
+
+/**
+ * Check if obj is a true object: of type "object" and not null or array
+ */
+export function isObject(obj: unknown): obj is object {
+    return typeof obj === "object" && obj !== null && !Array.isArray(obj);
+}
+
+/**
+ * Check if an object is empty or in other words has no own properties
+ */
+export function isObjectEmpty(obj: object) {
+    for (const k in obj)
+        if (Object.hasOwn(obj, k)) return false;
+
+    return true;
+}
+
+/**
+ * Returns null if value is not a URL, otherwise return URL object.
+ * Avoids having to wrap url checks in a try/catch
+ */
+export function parseUrl(urlString: string): URL | null {
+    try {
+        return new URL(urlString);
+    } catch {
+        return null;
+    }
+}
+
+/**
+ * Checks whether an element is on screen
+ */
+export const checkIntersecting = (el: Element) => {
+    const elementBox = el.getBoundingClientRect();
+    const documentHeight = Math.max(document.documentElement.clientHeight, window.innerHeight);
+    return !(elementBox.bottom < 0 || elementBox.top - documentHeight >= 0);
+};
+
+export function identity<T>(value: T): T {
+    return value;
+}
+
+// https://developer.mozilla.org/en-US/docs/Web/HTTP/Browser_detection_using_the_user_agent#mobile_tablet_or_desktop
+// "In summary, we recommend looking for the string Mobi anywhere in the User Agent to detect a mobile device."
+export const isMobile = navigator.userAgent.includes("Mobi");
+
+export const isPluginDev = (id: string) => Object.hasOwn(DevsById, id);
+
+export function pluralise(amount: number, singular: string, plural = singular + "s") {
+    return amount === 1 ? `${amount} ${singular}` : `${amount} ${plural}`;
+}
+
+export function tryOrElse<T>(func: () => T, fallback: T): T {
+    try {
+        const res = func();
+        return res instanceof Promise
+            ? res.catch(() => fallback) as T
+            : res;
+    } catch {
+        return fallback;
+    }
+}