All files / src/app/api/admin/referrals/campaigns route.ts

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export const dynamic = "force-dynamic";

import { NextRequest, NextResponse } from 'next/server';
import { } from "next-auth";
import { prisma } from "@/lib/prisma";
import { z } from "zod";
import {
  withAdmin,
  withErrorHandling,
  successResponse,
  createdResponse,
  ApiError,
  ApiSuccessResponse,
  ApiErrorResponse } from "@/lib/api";
import { } from "@/lib/api/middleware";

const CreateCampaignSchema = z.object({
  name: z.string().min(1),
  referrerReward: z.object({
    type: z.enum(["points", "credit", "discount"]),
    value: z.number(),
    discountType: z.enum(["percentage", "fixed"]).optional() }),
  refereeReward: z.object({
    type: z.enum(["points", "credit", "discount"]),
    value: z.number(),
    discountType: z.enum(["percentage", "fixed"]).optional() }),
  minPurchase: z.number().optional(),
  isActive: z.boolean().optional() });

/**
 * GET /api/admin/referrals/campaigns
 * List all referral campaigns/programs
 */
async function handleGet(request: NextRequest): Promise<NextResponse<ApiSuccessResponse<unknown> | ApiErrorResponse>> {
  const { searchParams } = new URL(request.url);
  const page = parseInt(searchParams.get("page") || "1");
  const limit = parseInt(searchParams.get("limit") || "20");

  const skip = (page - 1) * limit;

  const [campaigns, total] = await Promise.all([
    prisma.referralProgram.findMany({
      skip,
      take: limit,
      orderBy: { createdAt: "desc" } }),
    prisma.referralProgram.count(),
  ]);

  // Get referral counts for each campaign
  const campaignsWithCounts = await Promise.all(
    campaigns.map(async (campaign) => {
      const referralCount = await prisma.referral.count({
        where: { programId: campaign.id } });
      return {
        ...campaign,
        referralCount };
    })
  );

  return successResponse({
    campaigns: campaignsWithCounts,
    pagination: {
      page,
      limit,
      total,
      totalPages: Math.ceil(total / limit) } });
}

/**
 * POST /api/admin/referrals/campaigns
 * Create new referral campaign
 */
async function handlePost(request: NextRequest): Promise<NextResponse<ApiSuccessResponse<unknown> | ApiErrorResponse>> {
  const body = await request.json();
  const result = CreateCampaignSchema.safeParse(body);

  if (!result.success) {
    throw ApiError.validation("Invalid campaign data", result.error.issues);
  }

  const validatedData = result.data;

  const campaign = await prisma.referralProgram.create({
    data: {
      name: validatedData.name,
      referrerReward: validatedData.referrerReward,
      refereeReward: validatedData.refereeReward,
      minPurchase: validatedData.minPurchase,
      isActive: validatedData.isActive ?? true } });

  return createdResponse(campaign);
}

export const GET = withErrorHandling(withAdmin(handleGet));
export const POST = withErrorHandling(withAdmin(handlePost));