Adds some unfinished changes for improving blacksmith commands

src/main/java/net/knarcraft/blacksmith/command/BlackSmithConfigCommand.java

@@ -35,6 +35,12 @@ public class BlackSmithConfigCommand implements CommandExecutor {
                         "individual NPC. If you really want to change this, change it manually.");
                 return false;
             }
+            
+            if (args.length == 1) {
+                //TODO: Display the current value of the setting
+            } else if (args.length == 2 && isSpecialCase(commandName)) {
+                //TODO: Display the current value for the specified setting and material
+            }
 
             if (isSpecialCase(settings, commandName, args)) {
                 return true;
@@ -55,6 +61,18 @@ public class BlackSmithConfigCommand implements CommandExecutor {
         return false;
     }
 
+    /**
+     * Gets whether a command name matches a special case command
+     * 
+     * @param commandName <p>The command specified</p>
+     * @return <p>True if the command is a special case</p>
+     */
+    private boolean isSpecialCase(String commandName) {
+        return commandName.equalsIgnoreCase(GlobalSetting.BASE_PRICE.getCommandName()) || 
+                commandName.equalsIgnoreCase(GlobalSetting.PRICE_PER_DURABILITY_POINT.getCommandName()) || 
+                commandName.equalsIgnoreCase(GlobalSetting.ENCHANTMENT_COST.getCommandName());
+    }
+
     /**
      * Gets whether the command could be processed as one of the three special cases
      *

src/main/java/net/knarcraft/blacksmith/command/BlackSmithConfigTabCompleter.java

@@ -3,6 +3,7 @@ package net.knarcraft.blacksmith.command;
 import net.knarcraft.blacksmith.config.GlobalSetting;
 import net.knarcraft.blacksmith.config.NPCSetting;
 import net.knarcraft.blacksmith.util.TabCompleteValuesHelper;
+import net.knarcraft.blacksmith.util.TabCompletionHelper;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;
 import org.bukkit.command.TabCompleter;
@@ -34,9 +35,9 @@ public class BlackSmithConfigTabCompleter implements TabCompleter {
             for (GlobalSetting globalSetting : GlobalSetting.values()) {
                 availableCommands.add(globalSetting.getCommandName());
             }
-            return availableCommands;
+            return TabCompletionHelper.filterMatchingContains(availableCommands, args[0]);
         } else if (args.length == 2) {
-            return tabCompleteCommandValues(args[0]);
+            return tabCompleteCommandValues(args[0], args[1]);
         }
         return null;
     }
@@ -44,18 +45,24 @@ public class BlackSmithConfigTabCompleter implements TabCompleter {
     /**
      * Tab completes the values available for the given command
      *
-     * @param commandName <p>The name of the used command</p>
+     * @param commandName  <p>The name of the used command</p>
+     * @param commandValue <p>The command value used to filter tab-completions</p>
      * @return <p>Some valid options for the command's argument</p>
      */
-    private List<String> tabCompleteCommandValues(String commandName) {
+    private List<String> tabCompleteCommandValues(String commandName, String commandValue) {
+        if (commandName.equalsIgnoreCase("reload")) {
+            return new ArrayList<>();
+        }
         for (GlobalSetting globalSetting : GlobalSetting.values()) {
             if (globalSetting.getCommandName().equalsIgnoreCase(commandName)) {
-                return TabCompleteValuesHelper.getTabCompletions(globalSetting.getValueType());
+                return TabCompletionHelper.filterMatchingContains(TabCompleteValuesHelper.getTabCompletions(
+                        globalSetting.getValueType()), commandValue);
             }
         }
         for (NPCSetting npcSetting : NPCSetting.values()) {
             if (npcSetting.getCommandName().equalsIgnoreCase(commandName)) {
-                return TabCompleteValuesHelper.getTabCompletions(npcSetting.getValueType());
+                return TabCompletionHelper.filterMatchingContains(TabCompleteValuesHelper.getTabCompletions(
+                        npcSetting.getValueType()), commandValue);
             }
         }
         return null;

src/main/java/net/knarcraft/blacksmith/command/BlackSmithEditTabCompleter.java

@@ -2,6 +2,7 @@ package net.knarcraft.blacksmith.command;
 
 import net.knarcraft.blacksmith.config.NPCSetting;
 import net.knarcraft.blacksmith.util.TabCompleteValuesHelper;
+import net.knarcraft.blacksmith.util.TabCompletionHelper;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;
 import org.bukkit.command.TabCompleter;
@@ -29,10 +30,10 @@ public class BlackSmithEditTabCompleter implements TabCompleter {
             if (!sender.hasPermission("blacksmith.edit")) {
                 return new ArrayList<>();
             }
-            return npcSettings;
+            return TabCompletionHelper.filterMatchingContains(npcSettings, args[0]);
         } else {
             if (npcSettings.contains(args[0]) && args.length <= 2) {
-                return tabCompleteCommandValues(args[0]);
+                return tabCompleteCommandValues(args[0], args[1]);
             } else {
                 return new ArrayList<>();
             }
@@ -42,13 +43,15 @@ public class BlackSmithEditTabCompleter implements TabCompleter {
     /**
      * Tab completes the values available for the given command
      *
-     * @param commandName <p>The name of the used command</p>
+     * @param commandName  <p>The name of the used command</p>
+     * @param commandValue <p>The command value used to filter tab-completions</p>
      * @return <p>Some valid options for the command's argument</p>
      */
-    private List<String> tabCompleteCommandValues(String commandName) {
+    private List<String> tabCompleteCommandValues(String commandName, String commandValue) {
         for (NPCSetting npcSetting : NPCSetting.values()) {
             if (npcSetting.getCommandName().equalsIgnoreCase(commandName)) {
-                return TabCompleteValuesHelper.getTabCompletions(npcSetting.getValueType());
+                return TabCompletionHelper.filterMatchingContains(TabCompleteValuesHelper.getTabCompletions(
+                        npcSetting.getValueType()), commandValue);
             }
         }
         return null;

src/main/java/net/knarcraft/blacksmith/util/TabCompletionHelper.java

@@ -0,0 +1,32 @@
+package net.knarcraft.blacksmith.util;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * A helper class for tab complation
+ */
+public final class TabCompletionHelper {
+
+    private TabCompletionHelper() {
+
+    }
+
+    /**
+     * Finds tab complete values that contain the typed text
+     *
+     * @param values    <p>The values to filter</p>
+     * @param typedText <p>The text the player has started typing</p>
+     * @return <p>The given string values that contain the player's typed text</p>
+     */
+    public static List<String> filterMatchingContains(List<String> values, String typedText) {
+        List<String> configValues = new ArrayList<>();
+        for (String value : values) {
+            if (value.toLowerCase().contains(typedText.toLowerCase())) {
+                configValues.add(value);
+            }
+        }
+        return configValues;
+    }
+
+}