proper formatting for last active

chatto/src/main/java/org/ros/chatto/dto/ActiveUserDTO.java

@@ -8,5 +8,5 @@ import lombok.Data;
 public class ActiveUserDTO {
 	private String userName;
 	private Boolean online;
-	private Instant lastActive;
+	private String lastActive;
 }

chatto/src/main/java/org/ros/chatto/service/UserServiceImpl.java

@@ -23,8 +23,10 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.security.crypto.password.PasswordEncoder;
 import org.springframework.stereotype.Service;
 
+import java.time.Duration;
+
 @Service
-public class UserServiceImpl implements UserService{
+public class UserServiceImpl implements UserService {
 	@Autowired
 	UserRepository userRepository;
 
@@ -86,7 +88,6 @@ public class UserServiceImpl implements UserService{
 		return userRoleRepository.getAllRegularUser();
 	}
 
-	
 	public List<ActiveUserDTO> getOtherActiveUsers(String userName) {
 		List<String> userList = findAllOtherUsers(userName);
 		List<String> onlineUsers = activeUserStore.getUsers();
@@ -96,9 +97,8 @@ public class UserServiceImpl implements UserService{
 			ActiveUserDTO activeUserDTO = new ActiveUserDTO();
 			activeUserDTO.setUserName(u);
 			activeUserDTO.setOnline(false);
-			activeUserDTO.setLastActive(lastActiveMap.get(u));
+			activeUserDTO.setLastActive(toLastActiveString(lastActiveMap.get(u)));
-			if(onlineUsers.contains(u))
+			if (onlineUsers.contains(u)) {
-			{
 				activeUserDTO.setOnline(true);
 			}
 			activeUserDTOs.add(activeUserDTO);
@@ -112,12 +112,48 @@ public class UserServiceImpl implements UserService{
 		return userRepository.findByUserName(userName);
 	}
 
-	private Map<String, Instant> convertToMap(List<UserSession> userSessionList)
+	private Map<String, Instant> convertToMap(List<UserSession> userSessionList) {
-	{
 		Map<String, Instant> userMap = new HashMap<>();
 		userSessionList.forEach(us -> {
 			userMap.put(us.getUser().getUserName(), us.getTimeStamp());
 		});
 		return userMap;
 	}
+
+	private String toLastActiveString(Instant lastActive) {
+		if (lastActive == null)
+			return null;
+		Duration duration = Duration.between(lastActive, Instant.now());
+		long hours = duration.toHours();
+		long minutes = duration.toMinutes();
+		long days = duration.toDays();
+		// @formatter:off
+		if(minutes < 60) 
+		{
+			return String.format("%d minutes ago", minutes);
+		}
+		else 
+		{
+			if(hours < 24) 
+			{
+				return String.format("%d hours ago", hours);
+			}
+			else 
+			{
+				if(days < 30)
+				{
+					return String.format("%d days ago", days);
+				}
+				else if(days < 366)
+				{
+					return String.format("%d months ago", days/30);
+				}
+				else {
+					return String.format("%d years ago", days/365);
+				}
+			}
+		}
+		// @formatter:on
+
+	}
 }

chatto/src/main/resources/templates/chat.html

@@ -89,7 +89,7 @@
                                                         <p th:text="'User has not logged in yet'"></p>
                                                     </th:block>
                                                     <th:block th:if="${au.lastActive != null}">
-                                                        <p th:text="'Last active = ' + ${au.lastActive}">Last active 3 hours ago</p>
+                                                        <p th:text="'Last active ' + ${au.lastActive}">Last active 3 hours ago</p>
                                                     </th:block>
                                                     <!-- <p th:case="${au.online == true}" th:text="${au.userName} + ' is online'">Khalid is online</p>
                                                 <p th:if="${au.online == false}" th:text="${au.userName} + ' is offline' + ' Last active = ' + ${au.lastActive}">Khalid is offline. -->