main: second iter

Signed-off-by: nfel <nfilsaraee@gmail.com>

app/api/purchases/route.ts

@@ -0,0 +1,89 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { purchaseDb } from '@/lib/db';
+import { Purchase } from '@/lib/types';
+
+// GET - Get all purchases
+export async function GET(request: NextRequest) {
+  try {
+    const { searchParams } = new URL(request.url);
+    const albumId = searchParams.get('albumId');
+
+    let purchases;
+    if (albumId) {
+      purchases = purchaseDb.getByAlbumId(albumId);
+    } else {
+      purchases = purchaseDb.getAll();
+    }
+
+    return NextResponse.json(purchases, { status: 200 });
+  } catch (error) {
+    console.error('Error fetching purchases:', error);
+    return NextResponse.json(
+      { error: 'Failed to fetch purchases' },
+      { status: 500 }
+    );
+  }
+}
+
+// POST - Create new purchase
+export async function POST(request: NextRequest) {
+  try {
+    const purchaseData: Omit<Purchase, 'id'> = await request.json();
+
+    // Validate required fields
+    if (!purchaseData.albumId || !purchaseData.transactionId) {
+      return NextResponse.json(
+        { error: 'Missing required fields' },
+        { status: 400 }
+      );
+    }
+
+    // Check if transaction ID already exists
+    const existing = purchaseDb.getByTransactionId(purchaseData.transactionId);
+    if (existing) {
+      return NextResponse.json(
+        { error: 'Transaction ID already exists' },
+        { status: 409 }
+      );
+    }
+
+    // Ensure purchaseDate is set
+    const purchase: Omit<Purchase, 'id'> = {
+      ...purchaseData,
+      purchaseDate: purchaseData.purchaseDate || new Date(),
+    };
+
+    const created = purchaseDb.create(purchase);
+    return NextResponse.json(created, { status: 201 });
+  } catch (error) {
+    console.error('Error creating purchase:', error);
+    return NextResponse.json(
+      { error: 'Failed to create purchase' },
+      { status: 500 }
+    );
+  }
+}
+
+// DELETE - Delete purchase
+export async function DELETE(request: NextRequest) {
+  try {
+    const { searchParams } = new URL(request.url);
+    const id = searchParams.get('id');
+
+    if (!id) {
+      return NextResponse.json(
+        { error: 'Purchase ID is required' },
+        { status: 400 }
+      );
+    }
+
+    purchaseDb.delete(parseInt(id));
+    return NextResponse.json({ message: 'Purchase deleted successfully' }, { status: 200 });
+  } catch (error) {
+    console.error('Error deleting purchase:', error);
+    return NextResponse.json(
+      { error: 'Failed to delete purchase' },
+      { status: 500 }
+    );
+  }
+}