Unilateral exercises logging

server/src/lib/prisma.ts

@@ -0,0 +1,33 @@
+import { PrismaClient } from '@prisma/client';
+import { PrismaBetterSqlite3 } from '@prisma/adapter-better-sqlite3';
+import BetterSqlite3 from 'better-sqlite3';
+import path from 'path';
+
+// Ensure env vars are loaded
+import 'dotenv/config';
+
+declare global {
+  // allow global `var` declarations
+  // eslint-disable-next-line no-var
+  var prisma: PrismaClient | undefined;
+}
+
+const dbUrl = process.env.DATABASE_URL;
+
+if (!dbUrl) {
+  throw new Error("DATABASE_URL environment variable is not set. Please check your .env file.");
+}
+
+const adapter = new PrismaBetterSqlite3({ url: dbUrl });
+
+const prisma =
+  global.prisma ||
+  new PrismaClient({
+    adapter,
+  });
+
+if (process.env.NODE_ENV !== 'production') {
+  global.prisma = prisma;
+}
+
+export default prisma;