Complete rewrite of Admin & Party chat code

There are some API breaks as a result of these rewrites, I tried to keep it minimal, but I'm sure some plugins will need to update.

src/main/java/com/gmail/nossr50/commands/CommandManager.java

@@ -0,0 +1,103 @@
+package com.gmail.nossr50.commands;
+
+import co.aikar.commands.BukkitCommandIssuer;
+import co.aikar.commands.BukkitCommandManager;
+import co.aikar.commands.ConditionFailedException;
+import com.gmail.nossr50.commands.chat.AdminChatCommand;
+import com.gmail.nossr50.commands.chat.PartyChatCommand;
+import com.gmail.nossr50.datatypes.player.McMMOPlayer;
+import com.gmail.nossr50.locale.LocaleLoader;
+import com.gmail.nossr50.mcMMO;
+import com.gmail.nossr50.util.Permissions;
+import com.gmail.nossr50.util.player.UserManager;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+
+/*
+ * For now this class will only handle ACF converted commands, all other commands will be handled elsewhere
+ */
+public class CommandManager {
+    public static final String ADMIN_CONDITION = "adminCondition";
+    public static final String PARTY_CONDITION = "partyCondition";
+    public static final String MMO_DATA_LOADED = "mmoDataLoaded";
+
+    private final @NotNull mcMMO pluginRef;
+    private final @NotNull BukkitCommandManager bukkitCommandManager;
+
+    public CommandManager(@NotNull mcMMO pluginRef) {
+        this.pluginRef = pluginRef;
+        bukkitCommandManager = new BukkitCommandManager(pluginRef);
+
+        registerConditions();
+        registerCommands();
+    }
+
+    public void registerConditions() {
+        //TODO: Might be making a mistake with this lambda here, double check
+        //TODO: Might be making a mistake with this lambda here, double check
+        //TODO: Might be making a mistake with this lambda here, double check
+        //TODO: Might be making a mistake with this lambda here, double check
+        //TODO: Might be making a mistake with this lambda here, double check
+        //TODO: Might be making a mistake with this lambda here, double check
+        //TODO: Might be making a mistake with this lambda here, double check
+        //TODO: Might be making a mistake with this lambda here, double check
+        //TODO: Might be making a mistake with this lambda here, double check
+        //TODO: Might be making a mistake with this lambda here, double check
+
+        // Method or Class based - Can only be used on methods
+        bukkitCommandManager.getCommandConditions().addCondition(ADMIN_CONDITION, (context) -> {
+            BukkitCommandIssuer issuer = context.getIssuer();
+
+            if(issuer.getIssuer() instanceof Player) {
+                validateAdmin(issuer.getPlayer());
+            }
+        });
+
+        bukkitCommandManager.getCommandConditions().addCondition(MMO_DATA_LOADED, (context) -> {
+            BukkitCommandIssuer bukkitCommandIssuer = context.getIssuer();
+
+            if(bukkitCommandIssuer.getIssuer() instanceof Player) {
+                validateLoadedData(bukkitCommandIssuer.getPlayer());
+            }
+        });
+
+        bukkitCommandManager.getCommandConditions().addCondition(PARTY_CONDITION, (context) -> {
+            BukkitCommandIssuer bukkitCommandIssuer = context.getIssuer();
+
+            if(bukkitCommandIssuer.getIssuer() instanceof Player) {
+                validateLoadedData(bukkitCommandIssuer.getPlayer());
+                validatePlayerParty(bukkitCommandIssuer.getPlayer());
+            }
+        });
+    }
+
+    private void registerCommands() {
+        bukkitCommandManager.registerCommand(new AdminChatCommand(pluginRef));
+        bukkitCommandManager.registerCommand(new PartyChatCommand(pluginRef));
+    }
+
+
+    public void validateAdmin(@NotNull Player player) {
+        if(!player.isOp() && !Permissions.adminChat(player)) {
+            throw new ConditionFailedException("You are lacking the correct permissions to use this command.");
+        }
+    }
+
+    public void validateLoadedData(@NotNull Player player) {
+        if(UserManager.getPlayer(player) == null) {
+            throw new ConditionFailedException("Your mcMMO player data has not yet loaded!");
+        }
+    }
+
+    public void validatePlayerParty(@NotNull Player player) {
+        McMMOPlayer mmoPlayer = UserManager.getPlayer(player);
+
+        if(mmoPlayer.getParty() == null) {
+            throw new ConditionFailedException(LocaleLoader.getString("Commands.Party.None"));
+        }
+    }
+
+    public @NotNull BukkitCommandManager getBukkitCommandManager() {
+        return bukkitCommandManager;
+    }
+}