import { getAuthRuntimeConfig } from "@/lib/auth/config";
import { jsonError } from "@/lib/server/api";

export const runtime = "nodejs";

export async function GET(request: Request) {
  try {
    const config = getAuthRuntimeConfig();
    if (!config.authBaseUrl) throw new Error("认证中心地址未配置。");
    const randomStr = new URL(request.url).searchParams.get("randomStr")?.trim();
    if (!randomStr) throw new Error("randomStr is required.");
    const response = await fetch(`${config.authBaseUrl}/code/image?randomStr=${encodeURIComponent(randomStr)}`, {
      cache: "no-store"
    });
    if (!response.ok) throw new Error(`验证码获取失败：${response.status}`);
    return new Response(new Uint8Array(await response.arrayBuffer()), {
      headers: {
        "Content-Type": response.headers.get("content-type") || "image/png",
        "Cache-Control": "no-store"
      }
    });
  } catch (error) {
    return jsonError(error, 500);
  }
}