refactor: ReservedTimeInfo 매직넘버 상수화

Author: duol9

src/main/java/com/example/wini/domain/member/dto/common/ReservedTimeInfo.java

@@ -1,21 +1,25 @@
 package com.example.wini.domain.member.dto.common;
 
+import static com.example.wini.global.common.constant.StatusReserveTimeConstants.INDEFINITE_HOUR;
+import static com.example.wini.global.common.constant.StatusReserveTimeConstants.INDEFINITE_MINUTE;
+import static com.example.wini.global.common.constant.StatusReserveTimeConstants.INDEFINITE_SECONDS;
+import static com.example.wini.global.common.constant.StatusReserveTimeConstants.SECONDS_PER_HOUR;
+import static com.example.wini.global.common.constant.StatusReserveTimeConstants.SECONDS_PER_MINUTE;
+
 import jakarta.validation.constraints.Max;
 import jakarta.validation.constraints.Min;
 import jakarta.validation.constraints.NotNull;
-import java.time.Duration;
 
 public record ReservedTimeInfo(
         @NotNull @Min(value = -1) @Max(value = 12) Long hour, @NotNull @Min(value = -1) @Max(value = 59) Long minute) {
     public static ReservedTimeInfo of(long hour, long minute) {
         return new ReservedTimeInfo(hour, minute);
     }
 
-    public Duration toDuration() {
-        if (this.hour == -1 && this.minute == -1) {
-            return Duration.ofDays(365L * 100);
+    public long toSeconds() {
+        if (this.hour == INDEFINITE_HOUR && this.minute == INDEFINITE_MINUTE) {
+            return INDEFINITE_SECONDS;
         }
-
-        return Duration.ofHours(this.hour).plusMinutes(this.minute);
+        return this.hour * SECONDS_PER_HOUR + this.minute * SECONDS_PER_MINUTE;
     }
 }