Refactor Study Desk application structure

src/app/api/material-groups/[id]/route.ts

@@ -1,42 +1,44 @@
 import { NextRequest, NextResponse } from "next/server";
-import { prisma } from "@/lib/db";
-import type { Prisma } from "@/generated/prisma/client";
+import { materialGroupUpdateSchema } from "@/lib/validation/materialGroupSchemas";
+import {
+  deleteMaterialGroup,
+  renameMaterialGroup,
+} from "@/services/materialGroupService";
 
 export async function PATCH(
   request: NextRequest,
   { params }: { params: Promise<{ id: string }> }
 ) {
+  const { id } = await params;
+  const parsed = materialGroupUpdateSchema.safeParse(
+    await request.json().catch(() => null)
+  );
+  if (!parsed.success) {
+    return NextResponse.json({ error: "Invalid group update" }, { status: 400 });
+  }
   try {
-    const { id } = await params;
-    const body = await request.json();
-    const { name, sortOrder } = body;
-
-    const updateData: Prisma.MaterialGroupUpdateInput = {};
-    if (name !== undefined) updateData.name = name;
-    if (sortOrder !== undefined) updateData.sortOrder = sortOrder;
-
-    const group = await prisma.materialGroup.update({
-      where: { id },
-      data: updateData,
-    });
-
-    return NextResponse.json(group);
+    return NextResponse.json(await renameMaterialGroup(id, parsed.data.name));
   } catch (error) {
-    return NextResponse.json({ error: "Failed to update material group" }, { status: 500 });
+    if (
+      typeof error === "object" &&
+      error !== null &&
+      "code" in error &&
+      error.code === "P2025"
+    ) {
+      return NextResponse.json({ error: "Group not found" }, { status: 404 });
+    }
+    console.error("Failed to rename material group", error);
+    return NextResponse.json({ error: "Failed to rename group" }, { status: 500 });
   }
 }
 
 export async function DELETE(
-  request: NextRequest,
+  _request: NextRequest,
   { params }: { params: Promise<{ id: string }> }
 ) {
-  try {
-    const { id } = await params;
-    await prisma.materialGroup.delete({
-      where: { id },
-    });
-    return NextResponse.json({ success: true });
-  } catch (error) {
-    return NextResponse.json({ error: "Failed to delete material group" }, { status: 500 });
+  const { id } = await params;
+  if (!(await deleteMaterialGroup(id))) {
+    return NextResponse.json({ error: "Group not found" }, { status: 404 });
   }
+  return NextResponse.json({ success: true });
 }