add afk feature

src/main/java/cc/fascinated/bat/common/MemberUtils.java

@@ -0,0 +1,40 @@
+package cc.fascinated.bat.common;
+
+import cc.fascinated.bat.model.BatGuild;
+import cc.fascinated.bat.model.BatUser;
+import net.dv8tion.jda.api.entities.Member;
+import net.dv8tion.jda.api.entities.Role;
+
+import java.util.Comparator;
+
+/**
+ * @author Fascinated (fascinated7)
+ */
+public class MemberUtils {
+    /**
+     * Checks if a user has permission to edit another user
+     *
+     * @param guild the guild to check
+     * @param user the user to check
+     * @return if the user has permission to edit another user
+     */
+    public static boolean hasPermissionToEdit(BatGuild guild, BatUser user) {
+        Member botUser = guild.getDiscordGuild().getSelfMember();
+        Member member = guild.getDiscordGuild().getMemberById(user.getId());
+        if (member == null) {
+            return false;
+        }
+
+        return botUser.canInteract(member) && getHighestRole(botUser).getPosition() > getHighestRole(member).getPosition();
+    }
+
+    /**
+     * Gets the highest role of a member
+     *
+     * @param member the member to get the highest role of
+     * @return the highest role of the member
+     */
+    public static Role getHighestRole(Member member) {
+        return member.getRoles().stream().max(Comparator.comparingInt(Role::getPosition)).orElse(null);
+    }
+}

src/main/java/cc/fascinated/bat/common/TimeUtils.java

@@ -4,7 +4,6 @@ import lombok.*;
 import lombok.experimental.UtilityClass;
 import org.jetbrains.annotations.Nullable;
 
-import java.text.SimpleDateFormat;
 import java.util.concurrent.TimeUnit;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;