Create GME add endpoint

functions/api/gme/add.ts

@@ -0,0 +1,40 @@
+function makeResponse(body: string, status: number): Response {
+  return new Response(body, {
+    headers: {
+      "content-type": "application/json",
+    },
+    status,
+  });
+}
+
+export async function onRequestPost(context: RequestContext) {
+  const { user } = context.data.body;
+
+  if (!user) return makeResponse('{"error":"No user provided"}', 400);
+
+  const existingUser = await context.env.DATA.get(`gamemod_${user}`);
+
+  if (existingUser)
+    return makeResponse('{"error":"Cannot add an existing user"}', 400);
+
+  if (
+    ["165594923586945025", "289372404541554689", "396347223736057866"].includes(
+      user
+    )
+  )
+    return new Response(null, {
+      status: 204,
+    });
+
+  if (!user.match(/^\d{17,19}$/))
+    return makeResponse('{"error":"Invalid User ID"}', 400);
+
+  await context.env.DATA.put(
+    `gamemod_${user}`,
+    JSON.stringify({ time: Date.now(), user: context.data.current_user.id })
+  );
+
+  return new Response(null, {
+    status: 204,
+  });
+}