From ccaad66b1b502689d2ba5ccbcf1662248b2d78a8 Mon Sep 17 00:00:00 2001
From: Vendicated <vendicated@riseup.net>
Date: Fri, 31 Mar 2023 01:21:06 +0200
Subject: [PATCH] Add basic Vencord injection

---
 src/main/index.ts       |  2 ++
 src/main/ipc.ts         |  7 +++++++
 src/main/vencord.ts     | 22 ++++++++++++++++++++++
 src/preload/index.ts    | 19 ++++++++++++++++++-
 src/shared/IpcEvents.ts |  1 +
 5 files changed, 50 insertions(+), 1 deletion(-)
 create mode 100644 src/main/ipc.ts
 create mode 100644 src/main/vencord.ts
 create mode 100644 src/shared/IpcEvents.ts

diff --git a/src/main/index.ts b/src/main/index.ts
index 6422646..0b2f58d 100644
--- a/src/main/index.ts
+++ b/src/main/index.ts
@@ -2,6 +2,8 @@ import { app, BrowserWindow } from 'electron';
 import { createMainWindow } from "./mainWindow";
 import { createSplashWindow } from "./splash";
 
+import "./ipc";
+
 function createWindows() {
     const mainWindow = createMainWindow();
     const splash = createSplashWindow();
diff --git a/src/main/ipc.ts b/src/main/ipc.ts
new file mode 100644
index 0000000..2bb32ba
--- /dev/null
+++ b/src/main/ipc.ts
@@ -0,0 +1,7 @@
+import { ipcMain } from "electron";
+import { GET_VENCORD } from "../shared/IpcEvents";
+import { fetchVencord } from "./vencord";
+
+ipcMain.on(GET_VENCORD, async e => {
+    e.returnValue = await fetchVencord();
+});
diff --git a/src/main/vencord.ts b/src/main/vencord.ts
new file mode 100644
index 0000000..4a5672e
--- /dev/null
+++ b/src/main/vencord.ts
@@ -0,0 +1,22 @@
+const BASE_URL = "https://github.com/Vendicated/Vencord/releases/download/devbuild/";
+
+let VencordScripts: Record<"js" | "css", string>;
+
+async function get(url: string) {
+    const res = await fetch(url);
+    if (!res.ok) throw new Error(`Failed to fetch ${url}: ${res.status} ${res.statusText}`);
+
+    return res.text();
+}
+
+export async function fetchVencord() {
+    if (!VencordScripts) {
+        const [js, css] = await Promise.all([
+            get(BASE_URL + "/browser.js"),
+            get(BASE_URL + "/browser.css")
+        ]);
+        VencordScripts = { js, css };
+    }
+
+    return VencordScripts;
+}
diff --git a/src/preload/index.ts b/src/preload/index.ts
index eab5960..97dcbf6 100644
--- a/src/preload/index.ts
+++ b/src/preload/index.ts
@@ -1 +1,18 @@
-console.log("banana");
+import { ipcRenderer, webFrame } from "electron";
+import { GET_VENCORD } from "../shared/IpcEvents";
+
+const { js, css } = ipcRenderer.sendSync(GET_VENCORD);
+
+webFrame.executeJavaScript(js);
+
+const style = document.createElement("style");
+style.id = "vencord-css-core";
+style.textContent = css;
+
+if (document.readyState === "complete") {
+    document.documentElement.appendChild(style);
+} else {
+    document.addEventListener("DOMContentLoaded", () => document.documentElement.appendChild(style), {
+        once: true
+    });
+}
diff --git a/src/shared/IpcEvents.ts b/src/shared/IpcEvents.ts
new file mode 100644
index 0000000..fc0ff82
--- /dev/null
+++ b/src/shared/IpcEvents.ts
@@ -0,0 +1 @@
+export const GET_VENCORD = "VCDGetVencord";