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import { NextRequest, NextResponse } from 'next/server';
import {
withAdmin,
withErrorHandling,
successResponse,
ApiError,
ApiSuccessResponse,
ApiErrorResponse } from "@/lib/api";
import { } from "@/lib/api/middleware";
import { prisma } from "@/lib/prisma";
import { } from "next-auth";
import { processProductImage, validateImageFile, getNextImageIndex, deleteProductImage } from "@/lib/image-processing";
import { Prisma } from "@prisma/client";
// ============================================================================
// TYPES
// ============================================================================
interface ImageProcessingResult {
filename: string;
path: string;
size: number;
dimensions: { width: number; height: number };
}
interface ProductImageUploadResponse {
data: Prisma.ProductImageGetPayload<object>;
file: {
url: string;
thumbnailUrl: string;
fullSize: ImageProcessingResult;
thumbnail: ImageProcessingResult;
};
}
// ============================================================================
// HANDLERS
// ============================================================================
/**
* POST /api/admin/products/images
* Upload and process product image (creates both full-size and thumbnail)
*/
async function handlePost(
request: NextRequest
): Promise<NextResponse<ApiSuccessResponse<ProductImageUploadResponse> | ApiErrorResponse>> {
// Parse form data
const formData = await request.formData();
const file = formData.get("file") as File;
const productId = parseInt(formData.get("productId") as string);
if (!file || !productId) {
throw ApiError.validation("Missing required fields: file, productId");
}
if (isNaN(productId)) {
throw ApiError.invalidId("productId");
}
// Validate file
const validation = validateImageFile(file);
if (!validation.valid) {
throw ApiError.validation(validation.error || "Invalid image file");
}
// Verify product exists
const product = await prisma.product.findUnique({
where: { id: productId } });
if (!product) {
throw ApiError.notFound("Product", productId);
}
// Get next image index
const nextIndex = await getNextImageIndex(productId);
// Convert File to Buffer
const buffer = await file.arrayBuffer();
// Process image (creates both full-size and thumbnail)
const processed = await processProductImage(Buffer.from(buffer), {
productId,
imageIndex: nextIndex });
// Create database record
const productImage = await prisma.productImage.create({
data: {
productId,
url: processed.url,
thumbnailUrl: processed.thumbnailUrl,
order: nextIndex } });
return successResponse({
data: productImage,
file: {
url: processed.url,
thumbnailUrl: processed.thumbnailUrl,
fullSize: processed.fullSize,
thumbnail: processed.thumbnail } });
}
/**
* DELETE /api/admin/products/images
* Delete product image (removes both full-size and thumbnail files)
*/
async function handleDelete(
request: NextRequest
): Promise<NextResponse<ApiSuccessResponse<{ message: string }> | ApiErrorResponse>> {
const { searchParams } = request.nextUrl;
const imageId = parseInt(searchParams.get("id") || "0");
if (!imageId || isNaN(imageId)) {
throw ApiError.validation("Missing or invalid image id");
}
const image = await prisma.productImage.findUnique({
where: { id: imageId } });
if (!image) {
throw ApiError.notFound("Image", imageId);
}
// Delete files from disk (both full-size and thumbnail)
await deleteProductImage(image.url, image.thumbnailUrl);
// Delete from database
await prisma.productImage.delete({
where: { id: imageId } });
return successResponse({
message: "Image deleted successfully" });
}
// ============================================================================
// EXPORTS
// ============================================================================
export const POST = withErrorHandling(withAdmin(handlePost));
export const DELETE = withErrorHandling(withAdmin(handleDelete));
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