Add last-message-reply-recipient-timeout setting for timing out reply-recipient in private messaging.

Essentials/src/com/earth2me/essentials/ISettings.java

@@ -231,4 +231,6 @@ public interface ISettings extends IConf {
     boolean isLastMessageReplyRecipient();
     
     BigDecimal getMinimumPayAmount();
+    
+    long getLastMessageReplyRecipientTimeout();
 }

Essentials/src/com/earth2me/essentials/Settings.java

@@ -1125,4 +1125,8 @@ public class Settings implements net.ess3.api.ISettings {
     @Override public BigDecimal getMinimumPayAmount() {
         return new BigDecimal(config.getString("minimum-pay-amount", "0.001"));
     }
+
+    @Override public long getLastMessageReplyRecipientTimeout() {
+        return config.getLong("last-message-reply-recipient-timeout", 180);
+    }
 }

Essentials/src/com/earth2me/essentials/messaging/SimpleMessageRecipient.java

@@ -33,6 +33,7 @@ public class SimpleMessageRecipient implements IMessageRecipient {
     private final IEssentials ess;
     private final IMessageRecipient parent;
     
+    private long lastMessageMs;
     private WeakReference<IMessageRecipient> replyRecipient;
     
     public SimpleMessageRecipient(IEssentials ess, IMessageRecipient parent) {
@@ -103,12 +104,15 @@ public class SimpleMessageRecipient implements IMessageRecipient {
         if (ess.getSettings().isLastMessageReplyRecipient()) {
             // If this recipient doesn't have a reply recipient, initiate by setting the first
             // message sender to this recipient's replyRecipient.
-            if (getReplyRecipient() == null || !getReplyRecipient().isReachable()) {
+            long timeout = ess.getSettings().getLastMessageReplyRecipientTimeout() * 1000;
+            if (getReplyRecipient() == null || !getReplyRecipient().isReachable() 
+                || System.currentTimeMillis() - this.lastMessageMs > timeout) {
                 setReplyRecipient(sender);
             }
         } else { // Old message functionality, always set the reply recipient to the last person who sent us a message.
             setReplyRecipient(sender);
         }
+        this.lastMessageMs = System.currentTimeMillis();
         return afk ? MessageResponse.SUCCESS_BUT_AFK : MessageResponse.SUCCESS;
     }
 

Essentials/src/config.yml

@@ -539,6 +539,11 @@ use-bukkit-permissions: false
 # Minimum acceptable amount to be used in /pay.
 minimum-pay-amount: 0.001
 
+# If last-message-reply-recipient is true, this specifies the duration, in seconds, that would need to elapse for the 
+# reply-recipient to update when receiving a message.
+# Default is 180 (3 minutes)
+last-message-reply-recipient-timeout: 180
+
 ############################################################
 # +------------------------------------------------------+ #
 # |                   EssentialsHelp                     | #