import { auth } from "@/lib/auth";
import { prisma } from "@/lib/prisma";

export async function GET(
  _request: Request,
  { params }: { params: Promise<{ slug: string }> }
) {
  const session = await auth();
  if (!session) return new Response("Unauthorized", { status: 401 });

  const { slug } = await params;
  const app = await prisma.app.findUnique({
    where: { slug },
    include: { _count: { select: { campaigns: true } } },
  });

  if (!app) return Response.json({ error: "Not found" }, { status: 404 });
  return Response.json(app);
}

export async function PATCH(
  request: Request,
  { params }: { params: Promise<{ slug: string }> }
) {
  const session = await auth();
  if (!session) return new Response("Unauthorized", { status: 401 });

  const { slug } = await params;
  const body = await request.json();

  const app = await prisma.app.findUnique({ where: { slug } });
  if (!app) return Response.json({ error: "Not found" }, { status: 404 });

  const updated = await prisma.app.update({
    where: { slug },
    data: {
      name: body.name ?? undefined,
      description: body.description ?? undefined,
      appUrl: body.appUrl ?? undefined,
      primaryColor: body.primaryColor ?? undefined,
      accentColor: body.accentColor ?? undefined,
      darkBg: body.darkBg ?? undefined,
      brandIdentity: body.brandIdentity ?? undefined,
      productInfo: body.productInfo ?? undefined,
      platformGuidelines: body.platformGuidelines ?? undefined,
    },
  });

  return Response.json(updated);
}

export async function DELETE(
  _request: Request,
  { params }: { params: Promise<{ slug: string }> }
) {
  const session = await auth();
  if (!session) return new Response("Unauthorized", { status: 401 });

  const { slug } = await params;
  const app = await prisma.app.findUnique({ where: { slug } });
  if (!app) return Response.json({ error: "Not found" }, { status: 404 });

  // Check for campaigns
  const campaignCount = await prisma.campaign.count({ where: { appId: app.id } });
  if (campaignCount > 0) {
    return Response.json(
      { error: `Cannot delete app with ${campaignCount} campaign(s). Remove campaigns first.` },
      { status: 409 }
    );
  }

  await prisma.app.delete({ where: { slug } });
  return Response.json({ deleted: true });
}