import { parseAdminAuth } from "@/lib/api/admin-auth-context";
import { fail, ok } from "@/lib/response";
import { AuthError } from "@/modules/auth/errors";
import { resolveBusinessCustomerByAccount } from "@/modules/customer/business-customer-user-service";

type RouteContext = {
  params: Promise<{ customer_id: string }>;
};

/** GET ?account= 按登录账号反查业务客户 */
export async function GET(request: Request, context: RouteContext) {
  try {
    parseAdminAuth(request);
  } catch (error) {
    if (error instanceof AuthError) {
      return fail(error.code, error.message, error.httpStatus);
    }
    throw error;
  }
  const { customer_id: customerId } = await context.params;
  const account = new URL(request.url).searchParams.get("account")?.trim() || "";
  if (!account) {
    return fail("VALIDATION_FAILED", "请填写登录账号", 400);
  }
  const resolved = await resolveBusinessCustomerByAccount(customerId, account);
  if (!resolved) {
    return fail("NOT_FOUND", "未找到该账号对应的业务客户", 404);
  }
  return ok(resolved);
}