Add database and Prisma configurations, enhance event and leaderboard components with API integration, and update navigation for session management

app/api/preferences/route.ts

@@ -0,0 +1,65 @@
+import { NextResponse } from "next/server";
+import { auth } from "@/lib/auth";
+import { prisma } from "@/lib/prisma";
+import { Role } from "@/prisma/generated/prisma/client";
+
+export async function GET() {
+  try {
+    const session = await auth();
+
+    if (!session?.user) {
+      return NextResponse.json({ error: "Non authentifié" }, { status: 401 });
+    }
+
+    const preferences = await prisma.userPreferences.findUnique({
+      where: { userId: session.user.id },
+    });
+
+    return NextResponse.json(preferences || {});
+  } catch (error) {
+    console.error("Error fetching preferences:", error);
+    return NextResponse.json(
+      { error: "Erreur lors de la récupération des préférences" },
+      { status: 500 }
+    );
+  }
+}
+
+export async function PUT(request: Request) {
+  try {
+    const session = await auth();
+
+    if (!session?.user) {
+      return NextResponse.json({ error: "Non authentifié" }, { status: 401 });
+    }
+
+    const body = await request.json();
+    const { homeBackground, eventsBackground, leaderboardBackground, theme } =
+      body;
+
+    const preferences = await prisma.userPreferences.upsert({
+      where: { userId: session.user.id },
+      update: {
+        homeBackground: homeBackground ?? undefined,
+        eventsBackground: eventsBackground ?? undefined,
+        leaderboardBackground: leaderboardBackground ?? undefined,
+        theme: theme ?? undefined,
+      },
+      create: {
+        userId: session.user.id,
+        homeBackground: homeBackground ?? null,
+        eventsBackground: eventsBackground ?? null,
+        leaderboardBackground: leaderboardBackground ?? null,
+        theme: theme ?? "default",
+      },
+    });
+
+    return NextResponse.json(preferences);
+  } catch (error) {
+    console.error("Error updating preferences:", error);
+    return NextResponse.json(
+      { error: "Erreur lors de la mise à jour des préférences" },
+      { status: 500 }
+    );
+  }
+}