import { NextResponse } from 'next/server';
import { PrismaClient } from '@/app/generated/prisma';

const prisma = new PrismaClient();

export async function GET() {
  try {
    const row = await prisma.costPerView.findUnique({ where: { id: 1 } });
    return NextResponse.json({ value: row?.costPerView ?? null });
  } catch (e) {
    console.error('GET /api/cost_per_view 오류:', e);
    return NextResponse.json({ error: '조회 실패' }, { status: 500 });
  }
}

export async function POST(request: Request) {
  try {
    const body = await request.json();
    const valueRaw = body?.value;
    const value = typeof valueRaw === 'string' ? parseFloat(valueRaw) : valueRaw;
    if (typeof value !== 'number' || Number.isNaN(value)) {
      return NextResponse.json({ error: '유효한 숫자 값을 제공하세요' }, { status: 400 });
    }

    const saved = await prisma.costPerView.upsert({
      where: { id: 1 },
      update: { costPerView: value },
      create: { id: 1, costPerView: value },
    });

    return NextResponse.json({ ok: true, value: saved.costPerView });
  } catch (e) {
    console.error('POST /api/cost_per_view 오류:', e);
    return NextResponse.json({ error: '저장 실패' }, { status: 500 });
  }
}