feat(plugin): UnminifyErrors (#90)

Co-authored-by: Ven <vendicated@riseup.net>

src/plugins/unminifyErrors.ts

@@ -0,0 +1,41 @@
+import definePlugin from "../utils/types";
+import { Devs } from "../utils/constants";
+
+let ERROR_CODES: any;
+const CODES_URL =
+    "https://raw.githubusercontent.com/facebook/react/17.0.2/scripts/error-codes/codes.json";
+
+export default definePlugin({
+    name: "ReactErrorDecoder",
+    description: 'Replaces "Minifed React Error" with the actual error.',
+    authors: [Devs.Cyn],
+    patches: [
+        {
+            find: '"https://reactjs.org/docs/error-decoder.html?invariant="',
+            replacement: {
+                match: /(function .\(.\)){(for\(var .="https:\/\/reactjs\.org\/docs\/error-decoder\.html\?invariant="\+.,.=1;.<arguments\.length;.\+\+\).\+="&args\[\]="\+encodeURIComponent\(arguments\[.\]\);return"Minified React error #"\+.\+"; visit "\+.\+" for the full message or use the non-minified dev environment for full errors and additional helpful warnings.")}/,
+                replace: (_, func, original) =>
+                    `${func}{var decoded=Vencord.Plugins.plugins.ReactErrorDecoder.decodeError.apply(null, arguments);if(decoded)return decoded;${original}}`,
+            },
+        },
+    ],
+
+    async start() {
+        ERROR_CODES = await fetch(CODES_URL)
+            .then(res => res.json())
+            .catch(e => console.error("[ReactErrorDecoder] Failed to fetch React error codes\n", e));
+    },
+
+    stop() {
+        ERROR_CODES = undefined;
+    },
+
+    decodeError(code: number, ...args: any) {
+        let index = 0;
+        return ERROR_CODES?.[code]?.replace(/%s/g, () => {
+            const arg = args[index];
+            index++;
+            return arg;
+        });
+    },
+});