import { NextRequest, NextResponse } from "next/server";
import { prisma } from "@/lib/prisma";
import { requireAdmin } from "@/lib/session";

export async function PATCH(req: NextRequest) {
  const admin = await requireAdmin();
  if (!admin) return NextResponse.json({ error: "Admin requis" }, { status: 403 });

  const { id, capacity, booked, isFull } = await req.json();
  if (!id) return NextResponse.json({ error: "id requis" }, { status: 400 });

  try {
    const slot = await prisma.classSlot.update({
      where: { id },
      data: {
        ...(capacity !== undefined ? { capacity: Math.max(0, Number(capacity)) } : {}),
        ...(booked !== undefined ? { booked: Math.max(0, Number(booked)) } : {}),
        ...(isFull !== undefined ? { isFull: !!isFull } : {}),
      },
    });
    return NextResponse.json(slot);
  } catch (error) {
    console.error(error);
    return NextResponse.json({ error: "Erreur" }, { status: 500 });
  }
}