import { NextResponse, type NextRequest } from "next/server";
import { requireApiAdmin } from "@/lib/api-auth";
import { setDefaultMonthlyQuota } from "@/lib/db";
import { jsonError, normalizeError } from "@/lib/http";

export const runtime = "nodejs";

export async function PUT(request: NextRequest) {
  try {
    requireApiAdmin(request);

    const body = (await request.json()) as {
      defaultMonthlyQuota?: unknown;
    };
    const numericValue = Number.parseInt(
      String(body?.defaultMonthlyQuota ?? ""),
      10,
    );

    if (!Number.isFinite(numericValue) || numericValue < 0) {
      return jsonError("默认额度必须是大于等于 0 的整数。", 400);
    }

    const settings = setDefaultMonthlyQuota(numericValue);

    return NextResponse.json({
      ok: true,
      settings,
    });
  } catch (error) {
    const normalizedError = normalizeError(error, "保存默认额度失败。");
    return jsonError(normalizedError.message, normalizedError.statusCode);
  }
}