/**
 * POST /api/admin/credit  { handle, amount }
 * Manually adds VOID credits to a handle (operator use only).
 */

import { NextResponse } from "next/server";
import { adminCreditVoid } from "@/lib/serverLedger";

export async function POST(req: Request) {
  let body: unknown;
  try { body = await req.json(); } catch {
    return NextResponse.json({ ok: false, error: "Invalid JSON" }, { status: 400 });
  }

  const { handle, amount } = (body as Record<string, unknown>) ?? {};
  if (typeof handle !== "string" || !handle.trim())
    return NextResponse.json({ ok: false, error: "handle required" }, { status: 400 });

  const amt = typeof amount === "number" ? Math.floor(amount) : 0;
  if (amt <= 0)
    return NextResponse.json({ ok: false, error: "amount must be > 0" }, { status: 400 });

  const newBalance = adminCreditVoid(handle.trim(), amt);
  return NextResponse.json({ ok: true, handle: handle.trim().toLowerCase(), newBalance });
}