Add tooltips for f show.

Refactor tooltip methods to be shared across command classes.

src/main/java/com/massivecraft/factions/P.java

@@ -12,10 +12,14 @@ import com.massivecraft.factions.struct.ChatMode;
 import com.massivecraft.factions.util.*;
 import com.massivecraft.factions.zcore.MPlugin;
 import com.massivecraft.factions.zcore.util.TextUtil;
+import net.milkbowl.vault.permission.Permission;
+import org.bukkit.Bukkit;
+import org.bukkit.OfflinePlayer;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 import org.bukkit.event.player.AsyncPlayerChatEvent;
+import org.bukkit.plugin.RegisteredServiceProvider;
 
 import java.lang.reflect.Modifier;
 import java.lang.reflect.Type;
@@ -42,6 +46,8 @@ public class P extends MPlugin {
     // Persistence related
     private boolean locked = false;
 
+    public static Permission perms = null;
+
     public boolean getLocked() {
         return this.locked;
     }
@@ -112,6 +118,7 @@ public class P extends MPlugin {
         getServer().getPluginManager().registerEvents(blockListener, this);
 
         saveDefaultConfig();
+        setupPermissions();
 
         // since some other plugins execute commands directly through this command interface, provide it
         this.getCommand(this.refCommand).setExecutor(this);
@@ -120,6 +127,12 @@ public class P extends MPlugin {
         this.loadSuccessful = true;
     }
 
+    private boolean setupPermissions() {
+        RegisteredServiceProvider<Permission> rsp = getServer().getServicesManager().getRegistration(Permission.class);
+        perms = rsp.getProvider();
+        return perms != null;
+    }
+
     @Override
     public GsonBuilder getGsonBuilder() {
         Type mapFLocToStringSetType = new TypeToken<Map<FLocation, Set<String>>>() {
@@ -306,6 +319,10 @@ public class P extends MPlugin {
         return players;
     }
 
+    public String getPrimaryGroup(OfflinePlayer player) {
+        return perms == null ? " " : perms.getPrimaryGroup(Bukkit.getWorlds().get(0).toString(), player);
+    }
+
     public void debug(Level level, String s) {
         if (getConfig().getBoolean("debug", false)) {
             getLogger().log(level, s);