All files / src/app/api/admin/loyalty/tiers 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 CreateTierSchema = z.object({
  name: z.string().min(1),
  minPoints: z.number().int().min(0),
  multiplier: z.number().optional().default(1),
  benefits: z.array(z.string()).optional().default([]),
  programId: z.number().optional() });

interface TierData {
  id: number;
  name: string;
  minPoints: number;
  multiplier: number;
  benefits: string[];
}

/**
 * GET /api/admin/loyalty/tiers
 * List all loyalty tiers
 */
async function handleGet(): Promise<NextResponse<ApiSuccessResponse<TierData[]> | ApiErrorResponse>> {
  const tiers = await prisma.loyaltyTier.findMany({
    orderBy: { minPoints: "asc" } });

  const formattedTiers: TierData[] = tiers.map((tier) => ({
    id: tier.id,
    name: tier.name,
    minPoints: tier.minPoints,
    multiplier: tier.pointsMultiplier,
    benefits: tier.perks ? (tier.perks as string[]) : [] }));

  return successResponse(formattedTiers);
}

/**
 * POST /api/admin/loyalty/tiers
 * Create a new loyalty tier
 */
async function handlePost(
  request: NextRequest
): Promise<NextResponse<ApiSuccessResponse<unknown> | ApiErrorResponse>> {
  const body = await request.json();
  const validationResult = CreateTierSchema.safeParse(body);

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

  const { name, minPoints, multiplier, benefits, programId } = validationResult.data;

  // Get default program if not provided
  let loyaltyProgramId = programId;
  if (!loyaltyProgramId) {
    const defaultProgram = await prisma.loyaltyProgram.findFirst({
      where: { isActive: true } });
    if (!defaultProgram) {
      throw ApiError.badRequest("No active loyalty program found");
    }
    loyaltyProgramId = defaultProgram.id;
  }

  const tier = await prisma.loyaltyTier.create({
    data: {
      name,
      minPoints,
      pointsMultiplier: multiplier,
      perks: benefits,
      programId: loyaltyProgramId } });

  return createdResponse(tier);
}

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