리펙토링: 코드 개선

components/game/StageIndicator.tsx

@@ -11,46 +11,60 @@ export default function StageIndicator({
   currentIndex,
   results,
 }: StageIndicatorProps) {
+  const completedCount = results.filter((result) => result !== null).length;
+  const correctCount = results.filter((result) => result?.correct).length;
+  const incorrectCount = results.filter((result) => result?.correct === false)
+    .length;
+
   return (
-    <ol
-      className="flex max-w-full flex-wrap items-center justify-end gap-2"
-      aria-label="문제 풀이 진행 단계"
-    >
-      {results.map((result, index) => {
-        const stageNumber = index + 1;
-        const isCurrent = index === currentIndex;
-        const isCompleted = result !== null;
+    <div className="flex max-w-full flex-col items-end gap-2">
+      <p className="sr-only">
+        총 {results.length}문제 중 {completedCount}문제 완료, 정답{" "}
+        {correctCount}개, 오답 {incorrectCount}개, 현재 {currentIndex + 1}번
+        문제
+      </p>
+      <ol
+        className="flex max-w-full flex-wrap items-center justify-end gap-2"
+        aria-label="문제 풀이 진행 단계"
+      >
+        {results.map((result, index) => {
+          const stageNumber = index + 1;
+          const isCurrent = index === currentIndex;
+          const isCompleted = result !== null;
 
-        let label = `${stageNumber}번 남은 단계`;
-        let content = "";
-        let className =
-          "flex size-8 items-center justify-center rounded-full border text-sm font-bold leading-none transition";
+          let label = `${stageNumber}번 남은 단계`;
+          let content = "";
+          let className =
+            "flex size-8 items-center justify-center rounded-full border text-sm font-bold leading-none transition";
 
-        if (isCompleted) {
-          label = result.correct
-            ? `${stageNumber}번 완료, 정답`
-            : `${stageNumber}번 완료, 오답`;
-          content = result.correct ? "✓" : "×";
-          className += result.correct
-            ? " border-emerald-700 bg-emerald-700 text-white"
-            : " border-red-700 bg-red-700 text-white";
-        } else if (isCurrent) {
-          label = `${stageNumber}번 현재 단계`;
-          content = String(stageNumber);
-          className +=
-            " border-emerald-700 bg-white text-emerald-800 shadow-sm ring-2 ring-emerald-200";
-        } else {
-          className += " border-slate-300 bg-white text-slate-300";
-        }
+          if (isCompleted) {
+            label = result.correct
+              ? `${stageNumber}번 완료, 정답`
+              : `${stageNumber}번 완료, 오답`;
+            content = result.correct ? "✓" : "×";
+            className += result.correct
+              ? " border-emerald-700 bg-emerald-700 text-white"
+              : " border-red-700 bg-red-700 text-white";
+          } else if (isCurrent) {
+            label = `${stageNumber}번 현재 단계`;
+            content = String(stageNumber);
+            className +=
+              " border-emerald-700 bg-white text-emerald-800 shadow-sm ring-2 ring-emerald-200";
+          } else {
+            className += " border-slate-300 bg-white text-slate-300";
+          }
 
-        return (
-          <li key={stageNumber}>
-            <span className={className} aria-label={label} title={label}>
-              {content || <span className="size-2 rounded-full bg-slate-300" />}
-            </span>
-          </li>
-        );
-      })}
-    </ol>
+          return (
+            <li key={stageNumber}>
+              <span className={className} aria-label={label} title={label}>
+                {content || (
+                  <span className="size-2 rounded-full bg-slate-300" />
+                )}
+              </span>
+            </li>
+          );
+        })}
+      </ol>
+    </div>
   );
 }