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feat: 인메모리 Set으로 QR 중복 출석 방지 추가 #9

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Merged
ilcm96 merged 1 commit into from
May 23, 2026
Merged

feat: 인메모리 Set으로 QR 중복 출석 방지 추가 #9

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21 changes: 14 additions & 7 deletions src/components/QRScanner.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@ import { PostMemberActivities } from "@/api/activity/post-member-activities";
import { Button } from "@/components/ui/button";
import { useSessionKeepAlive } from "@/hooks/useSessionKeepAlive";
import { resolveAdminErrorMessage } from "@/lib/errors/admin-error";
import { showError, showSuccess } from "@/utils/alert";
import { showError, showInfo, showSuccess } from "@/utils/alert";

interface QRScannerProps {
activityId: number;
Expand All @@ -26,6 +26,7 @@ const QRScannerComponent: React.FC<QRScannerProps> = ({
const lastProcessedQR = useRef("");
const lastScanTime = useRef(0);
const isThrottled = useRef(false);
const processedMemberIdsRef = useRef(new Set<number>());

const resetProcessingState = useCallback((delayMs: number) => {
window.setTimeout(() => {
Expand Down Expand Up @@ -77,22 +78,27 @@ const QRScannerComponent: React.FC<QRScannerProps> = ({
return;
}

if (processedMemberIdsRef.current.has(qrResult.data.memberId)) {
showInfo(`${qrResult.data.name}님은 이미 출석 처리되었습니다.`);
resetProcessingState(1000);
return;
}

const submitResponse = await PostMemberActivities(
activityId,
qrResult.data.memberId
);
if (!submitResponse.ok) {
switch (submitResponse.status) {
case 400:
showError("잘못된 요청입니다. 관리자에게 문의해주세요.");
showError("출석 처리에 실패했습니다. 관리자에게 문의해주세요.");
break;
case 404:
showError(
"해당 활동 또는 회원을 찾을 수 없습니다. 관리자에게 문의해주세요."
);
showError("회원 또는 행사 정보를 찾을 수 없습니다. 관리자에게 문의해주세요.");
break;
case 409:
showError("이미 참여한 활동입니다.");
showInfo(`${qrResult.data.name}님은 이미 출석 처리되었습니다.`);
processedMemberIdsRef.current.add(qrResult.data.memberId);
break;
default:
showError(
Expand All @@ -107,7 +113,8 @@ const QRScannerComponent: React.FC<QRScannerProps> = ({
return;
}

showSuccess(`${qrResult.data.name}님이 참석했습니다.`);
processedMemberIdsRef.current.add(qrResult.data.memberId);
showSuccess(`${qrResult.data.name}님 출석이 완료되었습니다.`);
resetProcessingState(1000);
} catch (error) {
console.error("QR 코드 처리 중 오류 발생:", error);
Expand Down
6 changes: 6 additions & 0 deletions src/utils/alert.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,12 @@ export const showSuccess = (message: string) => {
});
};

export const showInfo = (message: string) => {
toast.info(message, {
duration: 2500,
});
};

export const showConfirm = async (message: string): Promise<boolean> => {
return window.confirm(message);
};
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