Update code

lib/format-bytes.ts

@@ -0,0 +1,7 @@
+export function formatBytes(bytes: number, decimals = 1): string {
+  if (bytes === 0) return "0 Bytes";
+  const k = 1024;
+  const units = ["Bytes", "KB", "MB", "GB"];
+  const i = Math.floor(Math.log(bytes) / Math.log(k));
+  return `${parseFloat((bytes / Math.pow(k, i)).toFixed(decimals))} ${units[i]}`;
+}

lib/prisma.ts

@@ -0,0 +1,10 @@
+import { PrismaClient } from '@prisma/client';
+
+const globalForPrisma = globalThis as unknown as {
+  prisma: PrismaClient | undefined;
+};
+
+export const prisma =
+  globalForPrisma.prisma ?? new PrismaClient();
+
+if (process.env.NODE_ENV !== 'production') globalForPrisma.prisma = prisma;

lib/stats.ts

@@ -0,0 +1,50 @@
+import { prisma } from '@/lib/prisma';
+
+export async function getDashboardStats(userId?: string) {
+  const filter = userId ? { where: { createdBy: userId } } : {};
+
+  const [totalPastes, totalViews, recentPastes, apiUsage, storageUsed, avgViews, mostViewed, avgSize] = await Promise.all([
+    prisma.paste.count(filter),
+    prisma.paste.aggregate({ _sum: { views: true }, ...filter }),
+    prisma.paste.count({
+      where: {
+        createdAt: { gte: new Date(Date.now() - 30 * 24 * 60 * 60 * 1000) },
+        ...(userId ? { createdBy: userId } : {}),
+      },
+    }),
+    prisma.paste.count({ where: { createdBy: { not: null } } }),
+    prisma.paste.aggregate({ _sum: { size: true }, ...filter }),
+    prisma.paste.aggregate({ _avg: { views: true }, ...filter }),
+    prisma.paste.findFirst({
+      orderBy: { views: 'desc' },
+      select: { views: true },
+      ...(userId ? { where: { createdBy: userId } } : {}),
+    }),
+    prisma.paste.aggregate({ _avg: { size: true }, ...filter }),
+  ]);
+
+  return {
+    totalPastes,
+    totalViews: totalViews._sum.views || 0,
+    recentPastes,
+    apiUsage,
+    storageUsed: storageUsed._sum.size || 0,
+    avgViews: Number(avgViews._avg.views?.toFixed(1)) || 0,
+    mostViewed: mostViewed?.views || 0,
+    avgSize: avgSize._avg.size || 0,
+  };
+}
+
+export async function getUserPastes(userId: string) {
+  return await prisma.paste.findMany({
+    where: { createdBy: userId },
+    orderBy: { createdAt: 'desc' },
+    select: {
+      id: true,
+      createdAt: true,
+      views: true,
+      title: true,
+      content: true,
+    },
+  });
+}