feat: add vencord katex plugin

configs/common.nix

@@ -7,6 +7,7 @@
   nixpkgs,
   agenix,
   home-manager,
+  vencord,
   ...
 }: let
   username = "leo";
@@ -131,7 +132,7 @@ in {
 
   nixpkgs = {
     config.allowUnfree = true;
-    overlays = [(import ../exprs/overlay.nix)];
+    overlays = [(import ../exprs/overlay.nix vencord)];
   };
 
   programs = {

configs/desktop.nix

@@ -94,7 +94,7 @@
         strawberry
         teams-for-linux
         thunderbird
-        (vesktop.override {withSystemVencord = false;})
+        (vesktop.override {withSystemVencord = true;})
         vscode
 
         # libreoffice stuff

exprs/overlay.nix

@@ -1,4 +1,4 @@
-final: prev: {
+vencord-input: final: prev: {
   svn2git = prev.svn2git.overrideAttrs (_: rec {
     version = "2.4.2";
 
@@ -11,4 +11,15 @@ final: prev: {
   });
 
   idea-ultimate-fixed = prev.callPackage ./idea-fixed.nix {};
+
+  vencord = prev.vencord.overrideAttrs (old: {
+    src =
+      vencord-input
+      // {
+        owner = "Vendicated";
+        repo = "Vencord";
+      };
+
+    patches = old.patches or [] ++ [./ventex.patch];
+  });
 }

exprs/ventex.patch

@@ -0,0 +1,128 @@
+diff --git a/src/plugins/ventex/README.md b/src/plugins/ventex/README.md
+new file mode 100644
+index 00000000..3a0dc43d
+--- /dev/null
++++ b/src/plugins/ventex/README.md
+@@ -0,0 +1,4 @@
++# vencord katex thing
++[forum guidelines told me to link this](https://docs.vencord.dev/installing/custom-plugins/)
++
++renders inline codeblocks starting and ending in `$` and codeblocks with the language `latex` in TeX using KaTeX
+\ No newline at end of file
+diff --git a/src/plugins/ventex/index.tsx b/src/plugins/ventex/index.tsx
+new file mode 100644
+index 00000000..11fc0d22
+--- /dev/null
++++ b/src/plugins/ventex/index.tsx
+@@ -0,0 +1,97 @@
++import "./katex.css";
++
++import { Devs } from "@utils/constants";
++import definePlugin, { ReporterTestable } from "@utils/types";
++import { makeLazy } from "@utils/lazy";
++import { React, useEffect, useMemo, useState } from "@webpack/common";
++
++// @ts-expect-error
++export const getKatex = /* #__PURE__*/ makeLazy(async () => (await import("https://unpkg.com/katex@0.16.9/dist/katex.mjs")).default);
++
++export function useKatex() {
++    const [katex, setKatex] = useState();
++    useEffect(() => {
++        if (katex === undefined)
++            getKatex().then(setKatex);
++    });
++    return katex;
++}
++
++// @ts-expect-error
++export const getDomPurify = /* #__PURE__*/ makeLazy(async () => (await import("https://unpkg.com/dompurify@3.1.7/dist/purify.es.mjs")).default);
++
++export function useDomPurify() {
++    const [domPurify, setDomPurify] = useState();
++    useEffect(() => {
++        if (domPurify === undefined)
++            getDomPurify().then(setDomPurify);
++    });
++    return domPurify;
++}
++
++export interface HighlighterProps {
++    lang?: string;
++    content: string;
++    isPreview: boolean;
++    tempSettings?: Record<string, any>;
++}
++
++export default definePlugin({
++    name: "KaTeX",
++    description: "TeX typesetting in discord",
++    authors: [Devs.skyevg],
++    reporterTestable: ReporterTestable.Patches,
++
++    patches: [
++        {
++            find: "codeBlock:{react(",
++            replacement: {
++                match: /codeBlock:\{react\((\i),(\i),(\i)\)\{/,
++                replace: "$&if($1.lang == 'latex') return $self.createBlock($1,$2,$3);"
++            }
++        },
++        {
++            find: "inlineCode:{react:(",
++            replacement: {
++                match: /inlineCode:\{react:\((\i),(\i),(\i)\)=>/,
++                replace: "$&($1.content.startsWith('$$') && $1.content.endsWith('$$'))?$self.createInline($1,$2,$3):"
++            }
++        }
++    ],
++    start: async () => {
++        useKatex();
++        useDomPurify();
++    },
++    stop: () => {
++    },
++
++    createBlock: (props: HighlighterProps) => (
++        <LazyLatex displayMode formula={props.content} />
++    ),
++    createInline: (props: HighlighterProps) => (
++        <LazyLatex formula={props.content.substring(1, props.content.length - 1)} />
++    ),
++});
++
++function LazyLatex(props) {
++    const { formula } = props;
++    const katex = useKatex();
++    const domPurify = useDomPurify();
++    return katex && domPurify
++        ? <Latex {...props} katex={katex} domPurify={domPurify} />
++        : <code>{formula}</code>;
++}
++
++function Latex({ katex, formula, displayMode, domPurify }) {
++    const result = useMemo(() => {
++        const html = katex.renderToString(formula, {
++            displayMode,
++            throwOnError: false
++        });
++        return domPurify.sanitize(html);
++    }, [formula, displayMode]);
++
++    return displayMode
++        ? <div className="tex" dangerouslySetInnerHTML={{ __html: result }} />
++        : <span className="tex" dangerouslySetInnerHTML={{ __html: result }} />;
++}
+\ No newline at end of file
+diff --git a/src/plugins/ventex/katex.css b/src/plugins/ventex/katex.css
+new file mode 100644
+index 00000000..fbc06b44
+--- /dev/null
++++ b/src/plugins/ventex/katex.css
+@@ -0,0 +1,6 @@
++@import url("https://unpkg.com/katex@0.16.9/dist/katex.min.css");
++
++.katex-display {
++    width: min-content;
++    margin: 1em;
++}
+\ No newline at end of file

flake.lock

@@ -333,6 +333,7 @@
         "nixpkgs": "nixpkgs",
         "systems": "systems_2",
         "ukubot-rs": "ukubot-rs",
+        "vencord": "vencord",
         "vscode-extensions": "vscode-extensions"
       }
     },
@@ -410,6 +411,22 @@
         "type": "github"
       }
     },
+    "vencord": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1729849691,
+        "narHash": "sha256-3bCw0ocP8Z5hLPC7dEwz0ckSUCKwHHLMY7BSMXpd/iA=",
+        "owner": "Vendicated",
+        "repo": "Vencord",
+        "rev": "88e8fa7e904e525c4c1110d057f0812e4008ff7c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "Vendicated",
+        "repo": "Vencord",
+        "type": "github"
+      }
+    },
     "vscode-extensions": {
       "inputs": {
         "flake-compat": [],

flake.nix

@@ -127,5 +127,11 @@
       inputs.nixpkgs.follows = "nixpkgs";
       inputs.flake-parts.follows = "flake-parts";
     };
+
+    # ==== vencord ====
+    vencord = {
+      url = "github:Vendicated/Vencord";
+      flake = false;
+    };
   };
 }