edit : OAuth 로그인 프로세스 변경

core/src/main/java/com/civilwar/boardsignal/user/domain/constants/AgeGroup.java

@@ -3,6 +3,7 @@
 import static com.civilwar.boardsignal.user.exception.UserErrorCode.NOT_FOUND_AGE_GROUP;
 
 import com.civilwar.boardsignal.common.exception.NotFoundException;
+import java.time.LocalDateTime;
 import java.util.Arrays;
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
@@ -11,21 +12,23 @@
 @RequiredArgsConstructor
 public enum AgeGroup {
 
-    UNDER_CHILDREN("1~9", "1-9", "미취학 아동"),
-    CHILDREN("10~14", "10-14", "어린이"),
-    TEENAGER("14~19", "14-19", "청소년"),
-    TWENTY("20~29", "20-29", "20대"),
-    THIRTY("30~39", "30-39", "30대"),
-    FORTY("40~49", "40-49", "40대"),
-    FIFTY("50~59", "50-59", "50대"),
-    SIXTY("60~69", "60-69", "60대"),
-    SEVENTY("70~79", "70-79", "70대"),
-    EIGHTY("80~89", "80-89", "80대"),
-    NINETY("90~", "90-", "90이상");
+    UNKNOWN("0", "0", "알 ㅅ 없음", 0),
+    UNDER_CHILDREN("1~9", "1-9", "미취학 아동", 9),
+    CHILDREN("10~14", "10-14", "어린이", 14),
+    TEENAGER("14~19", "14-19", "청소년", 19),
+    TWENTY("20~29", "20-29", "20대", 29),
+    THIRTY("30~39", "30-39", "30대", 39),
+    FORTY("40~49", "40-49", "40대",49),
+    FIFTY("50~59", "50-59", "50대", 59),
+    SIXTY("60~69", "60-69", "60대", 69),
+    SEVENTY("70~79", "70-79", "70대", 79),
+    EIGHTY("80~89", "80-89", "80대", 89),
+    NINETY("90~", "90-", "90이상", 100);
 
     private final String kakaoType;
     private final String naverType;
     private final String description;
+    private final int maxAge;
 
     public static AgeGroup of(String input, String provider) {
         return Arrays.stream(values())
@@ -41,4 +44,18 @@ private boolean isEqual(String input, String provider) {
             return input.equalsIgnoreCase(this.naverType);
         }
     }
+
+    public static AgeGroup convert(int birthYear, LocalDateTime now) {
+        AgeGroup userAgeGroup = UNKNOWN;
+        int age = now.getYear()-birthYear+1;
+
+        for (AgeGroup a : values()) {
+            //현재 연령대의 사용자의 나이가 포함된다면
+            if (a.getMaxAge()>=age) {
+                userAgeGroup = a;
+            }
+        }
+        return userAgeGroup;
+
+    }
 }