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import { NextRequest, NextResponse } from 'next/server';
import { } from "next-auth";
import { prisma } from "@/lib/prisma";
import { Prisma } from "@prisma/client";
import { z } from "zod";
import {
withAdmin,
withErrorHandling,
successResponse,
ApiError,
ApiSuccessResponse,
ApiErrorResponse } from "@/lib/api";
import { } from "@/lib/api/middleware";
/**
* Query schema for GET requests
*/
const querySchema = z.object({
page: z.coerce.number().int().positive().default(1),
limit: z.coerce.number().int().min(1).max(100).default(20),
sortBy: z.enum(["recent", "rating_high", "rating_low"]).default("recent"),
productId: z.coerce.number().int().positive().optional(),
userId: z.coerce.number().int().positive().optional(),
rating: z.coerce.number().int().min(1).max(5).optional(),
search: z.string().optional() });
/**
* GET /api/admin/reviews
* Get all reviews with filters (admin only)
*/
async function handleGet(request: NextRequest): Promise<NextResponse<ApiSuccessResponse<unknown> | ApiErrorResponse>> {
const searchParams = request.nextUrl.searchParams;
// Validate query parameters
const validationResult = querySchema.safeParse({
page: searchParams.get("page") || 1,
limit: searchParams.get("limit") || 20,
sortBy: searchParams.get("sortBy") || "recent",
productId: searchParams.get("productId") || undefined,
userId: searchParams.get("userId") || undefined,
rating: searchParams.get("rating") || undefined,
search: searchParams.get("search") || undefined });
if (!validationResult.success) {
throw ApiError.validation("Invalid query parameters", validationResult.error.issues);
}
const query = validationResult.data;
const skip = (query.page - 1) * query.limit;
// Build where clause
const where: Prisma.ReviewWhereInput = {};
if (query.productId) {
where.productId = query.productId;
}
if (query.userId) {
where.userId = query.userId;
}
if (query.rating) {
where.rating = query.rating;
}
if (query.search) {
where.OR = [
{ comment: { contains: query.search } },
{ product: { title: { contains: query.search } } },
{ user: { name: { contains: query.search } } },
{ user: { email: { contains: query.search } } },
];
}
// Build sort order
let orderBy: Record<string, string> = { createdAt: "desc" };
switch (query.sortBy) {
case "rating_high":
orderBy = { rating: "desc" };
break;
case "rating_low":
orderBy = { rating: "asc" };
break;
case "recent":
default:
orderBy = { createdAt: "desc" };
}
const [reviews, total, stats] = await Promise.all([
prisma.review.findMany({
where,
include: {
product: {
select: {
id: true,
title: true,
images: {
select: { url: true, thumbnailUrl: true },
take: 1 } } },
user: {
select: {
id: true,
name: true,
email: true,
image: true } },
helpful: {
select: {
helpful: true } } },
orderBy,
skip,
take: query.limit }),
prisma.review.count({ where }),
prisma.review.aggregate({
_avg: { rating: true },
_count: { rating: true } }),
]);
// Get rating distribution
const distribution = await prisma.review.groupBy({
by: ["rating"],
_count: true });
// Transform reviews with helpful counts
const transformedReviews = reviews.map((review) => {
const helpfulCount = review.helpful.filter((h) => h.helpful).length;
const notHelpfulCount = review.helpful.filter((h) => !h.helpful).length;
return {
id: review.id,
rating: review.rating,
comment: review.comment,
createdAt: review.createdAt,
updatedAt: review.updatedAt,
product: {
id: review.product.id,
title: review.product.title,
image:
review.product.images[0]?.thumbnailUrl ||
review.product.images[0]?.url ||
null },
user: {
id: review.user.id,
name: review.user.name,
email: review.user.email,
image: review.user.image },
helpfulCount,
notHelpfulCount };
});
return successResponse({
reviews: transformedReviews,
stats: {
totalReviews: stats._count.rating,
averageRating: stats._avg.rating || 0,
distribution: Object.fromEntries(
[1, 2, 3, 4, 5].map((rating) => [
rating,
distribution.find((d) => d.rating === rating)?._count || 0,
])
) },
pagination: {
page: query.page,
limit: query.limit,
total,
pages: Math.ceil(total / query.limit) } });
}
export const GET = withErrorHandling(withAdmin(handleGet));
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