import { getAlertById, closeAlert, reopenAlert } from "@/lib/db";

export async function GET(
  _req: Request,
  { params }: { params: Promise<{ id: string }> }
) {
  const { id } = await params;
  const alert = getAlertById(Number(id));
  if (!alert) {
    return Response.json({ error: "Alert not found" }, { status: 404 });
  }
  return Response.json(alert);
}

export async function PATCH(
  req: Request,
  { params }: { params: Promise<{ id: string }> }
) {
  const { id } = await params;
  const numId = Number(id);

  let body: { status: string };
  try {
    body = await req.json();
  } catch {
    return Response.json({ error: "Invalid JSON" }, { status: 400 });
  }

  if (body.status === "closed") {
    const updated = closeAlert(numId);
    if (!updated) return Response.json({ error: "Alert not found" }, { status: 404 });
    return Response.json(updated);
  }

  if (body.status === "open") {
    const updated = reopenAlert(numId);
    if (!updated) return Response.json({ error: "Alert not found" }, { status: 404 });
    return Response.json(updated);
  }

  return Response.json({ error: "status must be 'open' or 'closed'" }, { status: 400 });
}