From e30a5d101ab7daaf260a4db7de3d37981b0f3ce1 Mon Sep 17 00:00:00 2001
From: guhyeon <guhyeon77@gmail.com>
Date: Sun, 5 Jun 2022 00:37:31 +0900
Subject: [PATCH] =?UTF-8?q?=EA=B2=B0=EC=A0=9C=20=ED=99=98=EB=B6=88=20Reque?=
 =?UTF-8?q?st=20=ED=83=80=EC=9E=85=20=EB=AC=B8=EC=84=9C=EC=99=80=20?=
 =?UTF-8?q?=EB=A7=9E=EC=B6=A4?=
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---
 lib/request/Payments.ts | 52 +++++++++++++++++++++++++++++++++--------
 lib/typeUtil.ts         |  5 ++++
 2 files changed, 47 insertions(+), 10 deletions(-)
 create mode 100644 lib/typeUtil.ts

diff --git a/lib/request/Payments.ts b/lib/request/Payments.ts
index 232b8d8..8110239 100644
--- a/lib/request/Payments.ts
+++ b/lib/request/Payments.ts
@@ -4,6 +4,7 @@ import { PaymentResponse, PaymentAmountResponse } from '../response';
 import { StatusEnum, SortingEnum } from '../enum';
 
 import { ImpUidParams, Headers } from '../Interfaces';
+import {RequireAtLeastOne} from "../typeUtil";
 
 interface ImpUidsParams {
   imp_uid: string[],
@@ -27,18 +28,49 @@ interface MerchantUidParams {
   status: StatusEnum,
   sorting: SortingEnum,
 };
-interface CancelData {
-  imp_uid: string,
-  merchant_uid: string,
-  amount: number,
-  tax_free: number,
-  checksum: number,
-  reason: string,
-  refund_holder: string,
-  refund_bank: string,
-  refund_account: string,
+
+interface CancelRequest {
+  /**
+   * 환불 unique key(imp_uid 또는 merchant_id)
+   * imp_uid의 값이 우선순위를 갖게되며 유효하지 않는 imp_uid값을 입력하면 merchant_uid값과 무관하게 환불요청이 실패합니다
+   */
+  imp_uid?: string,
+  /**
+   * 환불 unique key(imp_uid 또는 merchant_id)
+   * imp_uid의 값이 우선순위를 갖게되며 유효하지 않는 imp_uid값을 입력하면 merchant_uid값과 무관하게 환불요청이 실패합니다
+   */
+  merchant_uid?: string,
+  /**
+   * 환불 금액(amount)
+   * 요청한 환불금액을 입력합니다. 미입력시 전액이 환불됩니다.
+   */
+  amount?: number,
+  tax_free?: number,
+  /**
+   * 환불 가능 금액(checksum)
+   */
+  checksum?: number,
+  /**
+   * 환불 사유
+   */
+  reason?: string,
+  /**
+   * 가상계좌 환불 수령계좌 예금주
+   */
+  refund_holder?: string,
+  /**
+   * 가상계좌 환불 수령계좌 은행코드
+   */
+  refund_bank?: string,
+  /**
+   * 가상계좌 환불 수령계좌 번호
+   */
+  refund_account?: string,
 };
 
+type CancelData = RequireAtLeastOne<CancelRequest,'imp_uid'|'merchant_uid'>
+
+
 /* 일반결제 */
 class Payments extends RequestBase {
   constructor() {
diff --git a/lib/typeUtil.ts b/lib/typeUtil.ts
new file mode 100644
index 0000000..2f0a5de
--- /dev/null
+++ b/lib/typeUtil.ts
@@ -0,0 +1,5 @@
+export type RequireAtLeastOne<T, Keys extends keyof T = keyof T> =
+    Pick<T, Exclude<keyof T, Keys>>
+    & {
+    [K in Keys]-?: Required<Pick<T, K>> & Partial<Pick<T, Exclude<Keys, K>>>
+}[Keys]