Add a new command /jail time which has easy access for add/subtract

time from a prisoner's sentence.

This command could be useful for commandblocks or something else, as it
does not need a player context. This closes Bukkit Dev Ticket:
http://dev.bukkit.org/bukkit-plugins/jail/tickets/432/

src/main/java/com/graywolf336/jail/beans/Prisoner.java

@@ -11,7 +11,7 @@ import org.bukkit.Location;
  * 
  * @author graywolf336
  * @since 2.x.x
- * @version 3.0.0
+ * @version 3.0.1
  */
 public class Prisoner {
 	private String name, jailer, reason, inventory, armor;
@@ -108,9 +108,22 @@ public class Prisoner {
 	 * Adds the given time to the remaining time the prisoner has left.
 	 * 
 	 * @param time to add to the prisoner's remaining time.
+	 * @return the new remaining time the prisoner has
 	 */
-	public void addTime(long time) {
+	public long addTime(long time) {
 		this.time += time;
+		return this.time;
+	}
+	
+	/**
+	 * Subtracts the given time from the remaining time the prisoner has left.
+	 * 
+	 * @param time to subtract from the prisoner's remaining time.
+	 * @return the new remaining time the prisoner has
+	 */
+	public long subtractTime(long time) {
+		this.time -= time;
+		return this.time;
 	}
 	
 	/** Gets whether the player is offline or not. */

src/main/java/com/graywolf336/jail/command/JailHandler.java

@@ -29,6 +29,7 @@ import com.graywolf336.jail.command.subcommands.JailStatusCommand;
 import com.graywolf336.jail.command.subcommands.JailStopCommand;
 import com.graywolf336.jail.command.subcommands.JailTeleInCommand;
 import com.graywolf336.jail.command.subcommands.JailTeleOutCommand;
+import com.graywolf336.jail.command.subcommands.JailTimeCommand;
 import com.graywolf336.jail.command.subcommands.JailTransferAllCommand;
 import com.graywolf336.jail.command.subcommands.JailTransferCommand;
 import com.graywolf336.jail.command.subcommands.JailVersionCommand;
@@ -187,6 +188,7 @@ public class JailHandler {
 		load(JailStopCommand.class);
 		load(JailTeleInCommand.class);
 		load(JailTeleOutCommand.class);
+		load(JailTimeCommand.class);
 		load(JailTransferAllCommand.class);
 		load(JailTransferCommand.class);
 		load(JailVersionCommand.class);

src/main/java/com/graywolf336/jail/command/subcommands/JailTimeCommand.java

@@ -0,0 +1,55 @@
+package com.graywolf336.jail.command.subcommands;
+
+import org.bukkit.command.CommandSender;
+
+import com.graywolf336.jail.JailManager;
+import com.graywolf336.jail.Util;
+import com.graywolf336.jail.beans.Prisoner;
+import com.graywolf336.jail.command.Command;
+import com.graywolf336.jail.command.CommandInfo;
+import com.graywolf336.jail.enums.LangString;
+
+@CommandInfo(
+		maxArgs = 3,
+		minimumArgs = 2,
+		needsPlayer = false,
+		pattern = "time|t",
+		permission = "jail.command.jailtime",
+		usage = "/jail time <add|remove|show> <player> <time>"
+	)
+public class JailTimeCommand implements Command {
+	public boolean execute(JailManager jm, CommandSender sender, String... args) throws Exception {
+		if(jm.isPlayerJailed(args[2])) {
+			Prisoner p = jm.getPrisoner(args[2]);
+			
+			switch(args.length) {
+				case 3:
+					if(args[1].equalsIgnoreCase("show")) {
+						sender.sendMessage(jm.getPlugin().getJailIO().getLanguageString(LangString.PRISONERSTIME,
+								new String[] { p.getName(), String.valueOf(p.getRemainingTimeInMinutes()) }));
+					}else {
+						return false;
+					}
+					break;
+				case 4:
+					if(args[1].equalsIgnoreCase("add")) {
+						p.addTime(Util.getTime(args[3]));
+					}else if(args[1].equalsIgnoreCase("remove")) {
+						p.subtractTime(Util.getTime(args[3]));
+					}else {
+						return false;
+					}
+					
+					sender.sendMessage(jm.getPlugin().getJailIO().getLanguageString(LangString.PRISONERSTIME,
+							new String[] { p.getName(), String.valueOf(p.getRemainingTimeInMinutes()) }));
+					break;
+				default:
+					return false;
+			}
+		}else {
+			sender.sendMessage(jm.getPlugin().getJailIO().getLanguageString(LangString.NOTJAILED, args[2]));
+		}
+		
+		return true;
+	}
+}

src/main/java/com/graywolf336/jail/enums/LangString.java

@@ -60,6 +60,8 @@ public enum LangString {
 	OFFLINEJAIL ("jailing"),
 	/** The message sent to the jailer when they jail someone who is online. */
 	ONLINEJAIL ("jailing"),
+	/** The message sent when finding out how much time a prisoner has. */
+	PRISONERSTIME ("jailing"),
 	/** The message sent to the prisoner when they try to do something but it is protected. */
 	PROTECTIONMESSAGE ("jailing"),
 	/** The message sent to the prisoner when they try to do something and it is protected, but no penalty. */

src/main/resources/en.yml

@@ -58,6 +58,7 @@ language:
     nowunmuted: '&9%0% is now unmuted.'
     offlinejail: '&2%0% is offline and will be jailed when they next come online for %1% minutes.'
     onlinejail: '&2%0% was jailed for %1% minutes.'
+    prisonerstime: '&2%0% has %1% minutes remaining.'
     protectionmessage: '&c%0% minutes have been added to your time for %1%.'
     protectionmessagenopenalty: '&cProtection enabled for %0%, do not do it again.'
     provideaplayer: '&cPlease provide a player when %0% &cthem.'