🚀 feat: implement Prisma Client singleton pattern and enhance utils

This update introduces a singleton pattern for the Prisma Client in the utilities module, improving application performance by ensuring only one instance of the client exists. Additional enhancements include code cleanup and the introduction of global type declarations for better type safety and project maintainability.

- Implemented a singleton pattern for Prisma Client to prevent multiple instances, which can lead to performance issues.
- Introduced a `global.d.ts` file for declaring global types, such as the Prisma Client, enhancing type safety across the project.
- Adjusted spacing and formatting in various utility functions for better readability and consistency.

Author: mangledbottles

apps/web/app/utils.ts

@@ -1,10 +1,19 @@
 import { Metadata } from "next";
 import { getServerSession } from "next-auth";
-// import { getSession } from "next-auth/react";
+import { PostHog } from 'posthog-node';
+import { authOptions } from "./api/auth/[...nextauth]/AuthOptions";
+import { PrismaClient } from "@prisma/client";
+
 type OpenGraphType = "article" | "website" | "book" | "profile" | "music.song" | "music.album" | "music.playlist" | "music.radio_station" | "video.movie" | "video.episode" | "video.tv_show" | "video.other";
 
-import { PrismaClient } from '@prisma/client'
-export const prisma = new PrismaClient()
+
+// Singleton pattern for Prisma Client
+let prisma: PrismaClient;
+if (!global.prisma) {
+    global.prisma = new PrismaClient();
+}
+prisma = global.prisma;
+export { prisma };
 
 import LoopsClient from "loops";
 export const loops = new LoopsClient(process.env.LOOPS_API_KEY!);
@@ -48,9 +57,6 @@ export function constructMetadata({
 
 }
 
-import { PostHog } from 'posthog-node';
-import { authOptions } from "./api/auth/[...nextauth]/AuthOptions";
-
 export const posthog_serverside = new PostHog(
     process.env.NEXT_PUBLIC_POSTHOG_KEY!,
     { host: process.env.NEXT_PUBLIC_POSTHOG_HOST },
@@ -92,7 +98,7 @@ interface WithSessionHandler {
 
 export const getSession = async () => {
     const session = await getServerSession(authOptions) as Session;
-    if(!session?.user) return { user: null } as unknown as Session;
+    if (!session?.user) return { user: null } as unknown as Session;
     return session;
 };
 
@@ -137,7 +143,7 @@ export const toUpperCamelCase = (input: string): string => {
 export const getAvatarFallbackInitials = (name: string): string => {
     const nameParts = name.split(' ');
     if (nameParts.length > 1) {
-      return `${nameParts[0][0]}${nameParts[nameParts.length - 1][0]}`.toUpperCase();
+        return `${nameParts[0][0]}${nameParts[nameParts.length - 1][0]}`.toUpperCase();
     }
     return nameParts[0][0].toUpperCase();
-  }
+}

apps/web/global.d.ts

@@ -0,0 +1,6 @@
+// global.d.ts
+import { PrismaClient } from '@prisma/client';
+
+declare global {
+  var prisma: PrismaClient | undefined;
+}