Updates README and version to 0.6.0

Adds missing super call to EditTabCompleter
Adds missing super call to EditCommand
Fixes the index of an argument during tab completion
Fixes a bug that caused conditions to be lost when a paid sign is changed

README.md

@@ -3,6 +3,9 @@
 The paid-signs plugin is a plugin that lets you add costs for creating plugin signs. This allows restricting usage of
 signs such as CraftBook's gate/lift and other signs while still allowing every player to use the signs.
 
+Note: OP players, and players with the '*' permission will have the `paidsigns.paymentexempt` permission and will not
+see any payment messages. For testing, you'll need to un-set the `paidsigns.paymentexempt` permission.
+
 ## Limitations
 
 As this plugin only listens to sign change events, there are some limitations:
@@ -13,10 +16,11 @@ As this plugin only listens to sign change events, there are some limitations:
 
 ## Commands
 
-* /addpaidsign <name> <cost> \[permission] \[ignore case] \[ignore color]
+* /addpaidsign <name> <cost> \[permission] \[ignore case] \[ignore color] \[match any condition]
 * /addpaidsigncondition <name (of a paid sign)> <line number> <string to match> \[executeRegEx] \[ignoreCase]
   \[ignoreColor]
 * /listpaidsigns \[name (of a paid sign)] \[line number]
+* /editpaidsign <sign name> <property>/<line number> \[new value]/<property> \[new value]
 * /removepaidsigncondition <name (of a paid sign)> <line number>
 * /removepaidsign <name (of a paid sign)>
 * /reload
@@ -35,6 +39,8 @@ This command adds a new paid sign that does nothing until a condition is added.
   default uses the config file value).
 * ignore color - Whether any condition of the paid sign should ignore color by default, when matching against text (
   default uses the config file value).
+* match any condition - Whether to trigger a paid sign match if a single one of the sign's conditions is true. This is
+  mainly useful if several lines may contain the match string, or if trying to match a word.
 
 ### /addpaidsigncondition
 
@@ -57,6 +63,14 @@ This lists registered paid signs and paid sign conditions. No arguments will pri
 * name - The name of the paid sign to see information about
 * line number - The line number of the condition to see information about
 
+### /editpaidsign
+
+* name - The name of the paid sign to edit
+* property/line number - The property to edit for the sign, or the line of the condition to edit
+* new value/property - The new property value if a property was specified in the second argument, or a condition
+  property if a line number was specified in the second argument
+* new value - The new property value of the condition property specified in the third argument
+
 ### /removepaidsigncondition
 
 Removes a paid sign condition from a sign
@@ -79,12 +93,15 @@ Removes a registered paid sign
 
 ## Configuration options
 
+* language - The language to use for all messages displayed to players
 * ignoreCase - Whether to ignore the case (lowercase/uppercase) of the paid sign text. The option can be set on a
   per-sign basis, but this value is used if not specified. The correct value depends on whether the plugin signs it
   should match are case-sensitive or not.
 * ignoreColor - Whether to ignore any color or formatting applied to the text when trying to match a paid sign's text.
   The option can be set on a per-sign basis, but this value is used if not specified. The correct value depends on
   whether the plugin signs it should match allow coloring or not.
-* enableRefunds - Whether to enable refunds to the sign creator when a sign detected as a paid sign is broken (payment
+* refundsEnabled - Whether to enable refunds to the sign creator when a sign detected as a paid sign is broken (payment
   will always go to the original creator)
 * refundPercentage - The percentage of the paid sign cost to refund (0-100)
+* refundAlways - Whether to refund when signs that players have paid for are broken by anything. This includes tnt,
+  creepers, pistons and similar

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>net.knarcraft</groupId>
     <artifactId>paidsigns</artifactId>
-    <version>0.3.0-ALPHA</version>
+    <version>0.6.0-ALPHA</version>
     <packaging>jar</packaging>
 
     <name>Paid Signs</name>
@@ -25,8 +25,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.8.1</version>
                 <configuration>
-                    <source>16</source>
+                    <source>${java.version}</source>
-                    <target>16</target>
+                    <target>${java.version}</target>
                 </configuration>
             </plugin>
             <plugin>
@@ -85,7 +85,7 @@
         <dependency>
             <groupId>org.jetbrains</groupId>
             <artifactId>annotations</artifactId>
-            <version>22.0.0</version>
+            <version>23.0.0</version>
             <scope>compile</scope>
         </dependency>
     </dependencies>

src/main/java/net/knarcraft/paidsigns/PaidSigns.java

@@ -4,13 +4,16 @@ import net.knarcraft.paidsigns.command.AddCommand;
 import net.knarcraft.paidsigns.command.AddConditionCommand;
 import net.knarcraft.paidsigns.command.AddConditionTabCompleter;
 import net.knarcraft.paidsigns.command.AddTabCompleter;
+import net.knarcraft.paidsigns.command.EditCommand;
+import net.knarcraft.paidsigns.command.EditTabCompleter;
 import net.knarcraft.paidsigns.command.ListCommand;
 import net.knarcraft.paidsigns.command.ListTabCompleter;
 import net.knarcraft.paidsigns.command.ReloadTabCommand;
 import net.knarcraft.paidsigns.command.RemoveConditionCommand;
 import net.knarcraft.paidsigns.command.RemoveConditionTabCompleter;
 import net.knarcraft.paidsigns.command.RemoveTabCommand;
-import net.knarcraft.paidsigns.listener.BlockBreakListener;
+import net.knarcraft.paidsigns.formatting.Translator;
+import net.knarcraft.paidsigns.listener.SignBreakListener;
 import net.knarcraft.paidsigns.listener.SignListener;
 import net.knarcraft.paidsigns.manager.EconomyManager;
 import net.knarcraft.paidsigns.manager.PaidSignManager;
@@ -33,10 +36,12 @@ public final class PaidSigns extends JavaPlugin {
 
     private static PaidSigns paidSigns;
     private PaidSignManager signManager;
+    private String language;
     private boolean ignoreCase;
     private boolean ignoreColor;
-    private boolean enableRefunds;
+    private boolean refundsEnabled;
-    private int refundPercentage;
+    private short refundPercentage;
+    private boolean refundAlways;
 
     /**
      * Instantiates a new paid signs object
@@ -58,13 +63,14 @@ public final class PaidSigns extends JavaPlugin {
     @Override
     public void onEnable() {
         setupVault();
+        loadConfig();
+        Translator.loadLanguages(language);
         signManager = new PaidSignManager(PaidSignManager.loadSigns());
         TrackedSignManager.loadTrackedSigns();
-        loadConfig();
 
         PluginManager pluginManager = getServer().getPluginManager();
         pluginManager.registerEvents(new SignListener(), this);
-        pluginManager.registerEvents(new BlockBreakListener(), this);
+        pluginManager.registerEvents(new SignBreakListener(), this);
 
         registerCommands();
     }
@@ -79,6 +85,7 @@ public final class PaidSigns extends JavaPlugin {
     public void reload() {
         this.reloadConfig();
         loadConfig();
+        Translator.loadLanguages(language);
         signManager = new PaidSignManager(PaidSignManager.loadSigns());
         TrackedSignManager.loadTrackedSigns();
     }
@@ -116,7 +123,7 @@ public final class PaidSigns extends JavaPlugin {
      * @return <p>Whether refunds are currently enabled</p>
      */
     public boolean areRefundsEnabled() {
-        return this.enableRefunds;
+        return this.refundsEnabled;
     }
 
     /**
@@ -124,7 +131,7 @@ public final class PaidSigns extends JavaPlugin {
      *
      * @return <p>The percentage of the cost to refund</p>
      */
-    public int getRefundPercentage() {
+    public short getRefundPercentage() {
         if (this.refundPercentage < 0) {
             return 0;
         } else if (refundPercentage > 100) {
@@ -133,6 +140,15 @@ public final class PaidSigns extends JavaPlugin {
         return this.refundPercentage;
     }
 
+    /**
+     * Gets whether refunds should always happen, even if signs are not broken by players
+     *
+     * @return <p>True if refunds should always happen</p>
+     */
+    public boolean refundAlways() {
+        return this.refundAlways;
+    }
+
     /**
      * Registers the commands used by this plugin
      */
@@ -140,7 +156,9 @@ public final class PaidSigns extends JavaPlugin {
         registerCommand("addPaidSign", new AddCommand(), new AddTabCompleter());
         registerCommand("listPaidSigns", new ListCommand(), new ListTabCompleter());
         registerCommand("addPaidSignCondition", new AddConditionCommand(), new AddConditionTabCompleter());
-        registerCommand("removePaidSignCondition", new RemoveConditionCommand(), new RemoveConditionTabCompleter());
+        registerCommand("removePaidSignCondition", new RemoveConditionCommand(),
+                new RemoveConditionTabCompleter());
+        registerCommand("editPaidSign", new EditCommand(), new EditTabCompleter());
 
         TabExecutor removeTabExecutor = new RemoveTabCommand();
         registerCommand("removePaidSign", removeTabExecutor, removeTabExecutor);
@@ -170,10 +188,13 @@ public final class PaidSigns extends JavaPlugin {
         FileConfiguration config = this.getConfig();
         config.options().copyDefaults(true);
         this.saveDefaultConfig();
+        this.saveConfig();
+        language = config.getString("language", "en");
         ignoreCase = config.getBoolean("ignoreCase", true);
         ignoreColor = config.getBoolean("ignoreColor", false);
-        enableRefunds = config.getBoolean("enableRefunds", true);
+        refundsEnabled = config.getBoolean("refundsEnabled", true);
-        refundPercentage = config.getInt("refundPercentage", 100);
+        refundPercentage = (short) config.getInt("refundPercentage", 100);
+        refundAlways = config.getBoolean("refundAlways", false);
     }
 
     /**
@@ -185,7 +206,7 @@ public final class PaidSigns extends JavaPlugin {
         if (economyProvider != null) {
             EconomyManager.initialize(economyProvider.getProvider());
         } else {
-            throw new IllegalStateException("[PaidSigns] Error: Vault could not be loaded");
+            throw new IllegalStateException("Error: Vault could not be loaded");
         }
     }
 

src/main/java/net/knarcraft/paidsigns/command/AddCommand.java

@@ -2,6 +2,8 @@ package net.knarcraft.paidsigns.command;
 
 import net.knarcraft.paidsigns.PaidSigns;
 import net.knarcraft.paidsigns.container.PaidSign;
+import net.knarcraft.paidsigns.formatting.StringFormatter;
+import net.knarcraft.paidsigns.formatting.TranslatableMessage;
 import net.knarcraft.paidsigns.manager.PaidSignManager;
 import net.knarcraft.paidsigns.property.OptionState;
 import org.bukkit.command.Command;
@@ -9,9 +11,6 @@ import org.bukkit.command.CommandSender;
 import org.jetbrains.annotations.NotNull;
 
 import java.io.IOException;
-import java.util.Arrays;
-import java.util.logging.Level;
-import java.util.logging.Logger;
 
 /**
  * A representation of the command for adding a new paid sign
@@ -31,7 +30,7 @@ public class AddCommand extends TokenizedCommand {
         try {
             cost = Double.parseDouble(arguments.get(1));
         } catch (NumberFormatException exception) {
-            sender.sendMessage("You provided an invalid number");
+            sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.ERROR_INVALID_NUMBER));
             return false;
         }
         String permission = "";
@@ -46,8 +45,12 @@ public class AddCommand extends TokenizedCommand {
         if (argumentSize > 4) {
             ignoreColor = OptionState.fromString(arguments.get(4));
         }
+        boolean matchAnyCondition = false;
+        if (argumentSize > 5) {
+            matchAnyCondition = Boolean.parseBoolean(arguments.get(5));
+        }
 
-        return createPaidSign(sender, signName, cost, permission, ignoreCase, ignoreColor);
+        return createPaidSign(sender, signName, cost, permission, ignoreCase, ignoreColor, matchAnyCondition);
     }
 
     /**
@@ -59,29 +62,27 @@ public class AddCommand extends TokenizedCommand {
      * @param permission        <p>The permission required for creating the sign represented by the paid sign</p>
      * @param ignoreCase        <p>Whether to ignore case for the paid sign's conditions</p>
      * @param ignoreColor       <p>Whether to ignore color for the paid sign's conditions</p>
+     * @param matchAnyCondition <p>Whether to treat any matching condition as a sign match</p>
      * @return <p>True if the paid sign was successfully created and registered</p>
      */
     private boolean createPaidSign(CommandSender sender, String signName, double cost, String permission,
-                                   OptionState ignoreCase, OptionState ignoreColor) {
+                                   OptionState ignoreCase, OptionState ignoreColor, boolean matchAnyCondition) {
         PaidSignManager manager = PaidSigns.getInstance().getSignManager();
         try {
-            PaidSign sign = new PaidSign(signName, cost, permission, ignoreCase, ignoreColor);
+            PaidSign sign = new PaidSign(signName, cost, permission, ignoreCase, ignoreColor, matchAnyCondition);
             if (manager.getPaidSign(signName) != null) {
-                sender.sendMessage("A paid sign with the same name already exists");
+                sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.ERROR_NAME_DUPLICATE));
                 return false;
             }
             manager.addPaidSign(sign);
-            sender.sendMessage("Successfully added new paid sign");
+            sender.sendMessage(StringFormatter.getTranslatedInfoMessage(TranslatableMessage.SUCCESS_ADDED_PAID_SIGN));
             return true;
         } catch (IOException e) {
-            Logger logger = PaidSigns.getInstance().getLogger();
+            sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.ERROR_EXCEPTION_OCCURRED));
-            logger.log(Level.SEVERE, "Exception encountered while trying to write " +
-                    "to the data file");
-            logger.log(Level.SEVERE, Arrays.toString(e.getStackTrace()));
-            sender.sendMessage("An exception occurred. Please notify the server administrator or check the server log.");
             return false;
         } catch (IllegalArgumentException e) {
-            sender.sendMessage("Invalid input: " + e.getMessage());
+            sender.sendMessage(StringFormatter.replacePlaceholder(StringFormatter.getTranslatedErrorMessage(
+                    TranslatableMessage.ERROR_INVALID_INPUT), "{input}", e.getMessage()));
         }
         return false;
     }

src/main/java/net/knarcraft/paidsigns/command/AddConditionCommand.java

@@ -2,6 +2,8 @@ package net.knarcraft.paidsigns.command;
 
 import net.knarcraft.paidsigns.PaidSigns;
 import net.knarcraft.paidsigns.container.PaidSign;
+import net.knarcraft.paidsigns.formatting.StringFormatter;
+import net.knarcraft.paidsigns.formatting.TranslatableMessage;
 import net.knarcraft.paidsigns.manager.PaidSignManager;
 import net.knarcraft.paidsigns.property.OptionState;
 import org.bukkit.command.Command;
@@ -9,9 +11,6 @@ import org.bukkit.command.CommandSender;
 import org.jetbrains.annotations.NotNull;
 
 import java.io.IOException;
-import java.util.Arrays;
-import java.util.logging.Level;
-import java.util.logging.Logger;
 
 /**
  * A representation of the command for adding a new match condition for a sign
@@ -19,7 +18,8 @@ import java.util.logging.Logger;
 public class AddConditionCommand extends TokenizedCommand {
 
     @Override
-    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
+    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label,
+                             @NotNull String[] args) {
         super.onCommand(sender, command, label, args);
         if (argumentSize < 3) {
             return false;
@@ -29,14 +29,21 @@ public class AddConditionCommand extends TokenizedCommand {
         short lineNumber;
         try {
             lineNumber = (short) (Short.parseShort(arguments.get(1)) - 1);
+            if (lineNumber < 0 || lineNumber > 3) {
+                sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.ERROR_INVALID_NUMBER));
+                return false;
+            }
         } catch (NumberFormatException exception) {
-            sender.sendMessage("Invalid line number given");
+            sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.ERROR_INVALID_NUMBER));
             return false;
         }
         String stringToMatch = arguments.get(2);
         boolean executeRegEx = false;
         if (argumentSize > 3) {
             executeRegEx = Boolean.parseBoolean(arguments.get(3));
+            if (executeRegEx && isRegExInvalid(sender, stringToMatch)) {
+                return false;
+            }
         }
         OptionState ignoreCase = OptionState.DEFAULT;
         if (argumentSize > 4) {
@@ -46,23 +53,38 @@ public class AddConditionCommand extends TokenizedCommand {
         if (argumentSize > 5) {
             ignoreColor = OptionState.getFromBoolean(Boolean.parseBoolean(arguments.get(5)));
         }
+        return addCondition(name, lineNumber, stringToMatch, executeRegEx, ignoreCase, ignoreColor, sender);
+    }
+
+    /**
+     * Uses the given input to add a paid sign condition
+     *
+     * @param name          <p>The name of the paid sign to add the condition to</p>
+     * @param lineNumber    <p>The sign line the condition should check</p>
+     * @param stringToMatch <p>The string to look for on created signs</p>
+     * @param executeRegEx  <p>Whether to treat the match string as a regular expression</p>
+     * @param ignoreCase    <p>Whether to ignore case when matching</p>
+     * @param ignoreColor   <p>Whether to ignore color when matching</p>
+     * @param sender        <p>The command sender to notify when finished</p>
+     * @return <p>True if the condition was successfully added</p>
+     */
+    private boolean addCondition(String name, short lineNumber, String stringToMatch, boolean executeRegEx,
+                                 OptionState ignoreCase, OptionState ignoreColor, CommandSender sender) {
         PaidSignManager signManager = PaidSigns.getInstance().getSignManager();
         PaidSign sign = signManager.getPaidSign(name);
         if (sign == null) {
-            sender.sendMessage("No such paid sign exists");
+            sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.ERROR_PAID_SIGN_NOT_FOUND));
             return false;
         }
         sign.addCondition(lineNumber, stringToMatch, executeRegEx, ignoreCase, ignoreColor);
         try {
             signManager.saveSigns();
         } catch (IOException e) {
-            Logger logger = PaidSigns.getInstance().getLogger();
+            sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.ERROR_EXCEPTION_OCCURRED));
-            logger.log(Level.SEVERE, "Exception encountered while trying to write to the data file");
-            logger.log(Level.SEVERE, Arrays.toString(e.getStackTrace()));
-            sender.sendMessage("An exception occurred. Please notify the server administrator or check the server log.");
             return false;
         }
-        sender.sendMessage("Condition added");
+        sender.sendMessage(StringFormatter.getTranslatedInfoMessage(
+                TranslatableMessage.SUCCESS_ADDED_PAID_SIGN_CONDITION));
         return true;
     }
 

src/main/java/net/knarcraft/paidsigns/command/AddTabCompleter.java

@@ -1,18 +1,13 @@
 package net.knarcraft.paidsigns.command;
 
 import net.knarcraft.paidsigns.utility.TabCompleteHelper;
-import org.bukkit.Bukkit;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;
-import org.bukkit.permissions.Permission;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 import java.util.ArrayList;
-import java.util.HashMap;
 import java.util.List;
-import java.util.Map;
-import java.util.StringJoiner;
 
 /**
  * The tab completer for the add paid sign command
@@ -21,9 +16,8 @@ public class AddTabCompleter extends TokenizedTabCompleter {
 
     private static List<String> names;
     private static List<String> costs;
-    private static List<String> plugins;
-    private static Map<String, List<String>> permissions;
     private static List<String> options;
+    private static List<String> booleans;
 
     @Nullable
     @Override
@@ -32,7 +26,6 @@ public class AddTabCompleter extends TokenizedTabCompleter {
         super.onTabComplete(sender, command, alias, args);
         if (names == null) {
             initializeValues();
-            loadAvailablePermissions();
         }
 
         if (argumentSize == 1) {
@@ -40,90 +33,17 @@ public class AddTabCompleter extends TokenizedTabCompleter {
         } else if (argumentSize == 2) {
             return TabCompleteHelper.filterMatchingStartsWith(costs, arguments.get(1));
         } else if (argumentSize == 3) {
-            return tabCompletePermission(arguments.get(arguments.size() - 1));
+            return TabCompleteHelper.tabCompletePermission(arguments.get(arguments.size() - 1));
         } else if (argumentSize == 4) {
             return TabCompleteHelper.filterMatchingStartsWith(options, arguments.get(3));
         } else if (argumentSize == 5) {
             return TabCompleteHelper.filterMatchingStartsWith(options, arguments.get(4));
+        } else if (argumentSize == 6) {
+            return TabCompleteHelper.filterMatchingStartsWith(booleans, arguments.get(5));
         }
         return new ArrayList<>();
     }
 
-    /**
-     * Gets the tab complete value for the permission typed
-     *
-     * @param typedNode <p>The full permission node typed by the player</p>
-     * @return <p>All known valid auto-complete options</p>
-     */
-    private List<String> tabCompletePermission(String typedNode) {
-        List<String> output;
-        if (typedNode.contains(".")) {
-            List<String> matchingPermissions = permissions.get(typedNode.substring(0, typedNode.lastIndexOf(".")));
-            if (matchingPermissions == null) {
-                output = new ArrayList<>();
-            } else {
-                //Filter by the typed text
-                output = filterMatching(matchingPermissions, typedNode);
-            }
-        } else {
-            output = plugins;
-        }
-
-        //Add previous permissions in the comma-separated lists as a prefix
-        return output;
-    }
-
-    /**
-     * Find completable strings which match the text typed by the command's sender
-     *
-     * @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 which start with the player's typed text</p>
-     */
-    private List<String> filterMatching(List<String> values, String typedText) {
-        List<String> configValues = new ArrayList<>();
-        for (String value : values) {
-            if (value.toLowerCase().startsWith(typedText.toLowerCase())) {
-                configValues.add(value);
-            }
-        }
-        return configValues;
-    }
-
-    /**
-     * Loads all permissions available from bukkit plugins
-     */
-    private static void loadAvailablePermissions() {
-        plugins = new ArrayList<>();
-        permissions = new HashMap<>();
-
-        for (Permission permission : Bukkit.getPluginManager().getPermissions()) {
-            loadPermission(permission.getName());
-        }
-    }
-
-    /**
-     * Loads a given permission into the proper lists and maps
-     *
-     * @param permissionName <p>The permission to load</p>
-     */
-    private static void loadPermission(String permissionName) {
-        String[] permissionParts = permissionName.split("\\.");
-        if (permissionParts.length == 1 && !plugins.contains(permissionParts[0])) {
-            plugins.add(permissionParts[0]);
-        } else if (permissionParts.length > 1) {
-            StringJoiner pathJoiner = new StringJoiner(".");
-            for (int j = 0; j < permissionParts.length - 1; j++) {
-                pathJoiner.add(permissionParts[j]);
-            }
-            String path = pathJoiner.toString();
-            List<String> permissionList = permissions.computeIfAbsent(path, k -> new ArrayList<>());
-            permissionList.add(permissionName);
-
-            loadPermission(path);
-        }
-    }
-
     /**
      * Initializes the values available for tab completion
      */
@@ -131,6 +51,7 @@ public class AddTabCompleter extends TokenizedTabCompleter {
         names = TabCompleteHelper.getExamplePaidSignNames();
         costs = TabCompleteHelper.getCosts();
         options = TabCompleteHelper.getOptionStates();
+        booleans = TabCompleteHelper.getBooleans();
     }
 
 }

src/main/java/net/knarcraft/paidsigns/command/EditCommand.java

@@ -0,0 +1,186 @@
+package net.knarcraft.paidsigns.command;
+
+import net.knarcraft.paidsigns.PaidSigns;
+import net.knarcraft.paidsigns.container.PaidSign;
+import net.knarcraft.paidsigns.container.PaidSignCondition;
+import net.knarcraft.paidsigns.formatting.StringFormatter;
+import net.knarcraft.paidsigns.formatting.TranslatableMessage;
+import net.knarcraft.paidsigns.manager.PaidSignManager;
+import net.knarcraft.paidsigns.property.OptionState;
+import net.knarcraft.paidsigns.property.PaidSignConditionProperty;
+import net.knarcraft.paidsigns.property.PaidSignProperty;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.jetbrains.annotations.NotNull;
+
+import java.io.IOException;
+import java.util.Map;
+
+/**
+ * A representation of the command for editing a new paid sign
+ */
+public class EditCommand extends TokenizedCommand {
+
+    @Override
+    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label,
+                             @NotNull String[] args) {
+        super.onCommand(sender, command, label, args);
+        if (argumentSize < 3) {
+            return false;
+        }
+
+        PaidSign sign = PaidSigns.getInstance().getSignManager().getPaidSign(arguments.get(0));
+        if (sign == null) {
+            sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.ERROR_PAID_SIGN_NOT_FOUND));
+            return false;
+        }
+
+        try {
+            try {
+                //First, assume a condition is changed
+                return parseGivenConditionLine(sign, sender);
+            } catch (NumberFormatException exception) {
+                //Fall back to assume a sign is changed
+                return parseGivenProperty(sign, sender);
+            }
+        } catch (IOException e) {
+            sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.ERROR_EXCEPTION_OCCURRED));
+            return false;
+        }
+    }
+
+    /**
+     * Parses the given condition line and the rest of the input
+     *
+     * @param sign   <p>The paid sign the user is trying to edit</p>
+     * @param sender <p>The command sender to notify of any errors</p>
+     * @return <p>True if the command was executed successfully</p>
+     * @throws NumberFormatException <p>If the given argument is not a number</p>
+     */
+    private boolean parseGivenConditionLine(@NotNull PaidSign sign,
+                                            @NotNull CommandSender sender) throws NumberFormatException {
+        short signLine = (short) (Short.parseShort(arguments.get(1)) - 1);
+        if (signLine < 0 || signLine > 3 || sign.getConditions().get(signLine) == null) {
+            sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.ERROR_NO_SUCH_CONDITION));
+            return false;
+        }
+        if (argumentSize < 4) {
+            return false;
+        }
+
+        PaidSignConditionProperty conditionProperty = PaidSignConditionProperty.getFromString(arguments.get(2));
+        if (conditionProperty == null) {
+            sender.sendMessage(StringFormatter.getTranslatedErrorMessage(
+                    TranslatableMessage.ERROR_PROPERTY_NOT_RECOGNIZED));
+            return false;
+        }
+        String value = arguments.get(3);
+        return updateConditionProperty(sender, sign, signLine, conditionProperty, value);
+    }
+
+    /**
+     * Parses the given paid sign property and the rest of the input
+     *
+     * @param sign   <p>The paid sign the user is trying to edit</p>
+     * @param sender <p>The command sender to notify of any errors</p>
+     * @return <p>True if the command was executed successfully</p>
+     * @throws IOException <p>If unable to remove or save the sign</p>
+     */
+    private boolean parseGivenProperty(@NotNull PaidSign sign,
+                                       @NotNull CommandSender sender) throws IOException {
+        PaidSignProperty property = PaidSignProperty.getFromString(arguments.get(1));
+        if (property == null) {
+            sender.sendMessage(StringFormatter.getTranslatedErrorMessage(
+                    TranslatableMessage.ERROR_PROPERTY_NOT_RECOGNIZED));
+            return false;
+        }
+        String value = arguments.get(2);
+        try {
+            updateProperty(sender, sign, property, value);
+            return true;
+        } catch (NumberFormatException exception) {
+            sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.ERROR_INVALID_NUMBER));
+            return false;
+        }
+    }
+
+    /**
+     * Updates a property for a paid sign
+     *
+     * @param sender   <p>The command sender to notify of any errors or success</p>
+     * @param sign     <p>The sign to be updated</p>
+     * @param property <p>The property to update</p>
+     * @param newValue <p>The new value of the property</p>
+     * @throws IOException <p>If unable to remove or save the sign</p>
+     */
+    private void updateProperty(CommandSender sender, PaidSign sign, PaidSignProperty property,
+                                String newValue) throws IOException {
+        String signName = property == PaidSignProperty.NAME ? newValue : sign.getName();
+        OptionState ignoreCase = property == PaidSignProperty.IGNORE_CASE ? OptionState.fromString(newValue) :
+                OptionState.getFromBoolean(sign.getIgnoreCase());
+        OptionState ignoreColor = property == PaidSignProperty.IGNORE_COLOR ? OptionState.fromString(newValue) :
+                OptionState.getFromBoolean(sign.getIgnoreColor());
+        boolean matchAnyCondition = property == PaidSignProperty.MATCH_ANY_CONDITION ? Boolean.parseBoolean(newValue) :
+                sign.matchAnyCondition();
+        double cost = property == PaidSignProperty.COST ? Double.parseDouble(newValue) : sign.getCost();
+        String permission = property == PaidSignProperty.PERMISSION ? newValue : sign.getPermission();
+        Map<Short, PaidSignCondition> conditions = sign.getConditions();
+
+        PaidSignManager manager = PaidSigns.getInstance().getSignManager();
+        PaidSign updatedSign = new PaidSign(signName, cost, permission, ignoreCase, ignoreColor, matchAnyCondition);
+        for (short line : conditions.keySet()) {
+            PaidSignCondition condition = conditions.get(line);
+            updatedSign.addCondition(line, condition.getStringToMatch(), condition.executeRegex(),
+                    OptionState.getFromBoolean(condition.ignoreCase()),
+                    OptionState.getFromBoolean(condition.ignoreColor()));
+        }
+        manager.removePaidSign(sign.getName());
+        manager.addPaidSign(updatedSign);
+
+        sender.sendMessage(StringFormatter.getTranslatedInfoMessage(TranslatableMessage.SUCCESS_UPDATED_PAID_SIGN));
+    }
+
+    /**
+     * Updates a property of a condition of a paid sign
+     *
+     * @param sender         <p>The command sender to notify of any errors or success</p>
+     * @param sign           <p>The sign the condition belongs to</p>
+     * @param conditionIndex <p>The line index that identifies the sign condition</p>
+     * @param property       <p>The condition property to update</p>
+     * @param newValue       <p>The new value of the property</p>
+     * @return <p>True if the property was successfully changed</p>
+     */
+    private boolean updateConditionProperty(CommandSender sender, PaidSign sign, short conditionIndex,
+                                            PaidSignConditionProperty property, String newValue) {
+        PaidSignCondition condition = sign.getConditions().get(conditionIndex);
+        String stringToMatch = property == PaidSignConditionProperty.STRING_TO_MATCH ? newValue :
+                condition.getStringToMatch();
+        boolean executeRegEx = property == PaidSignConditionProperty.EXECUTE_REG_EX ? Boolean.parseBoolean(newValue) :
+                condition.executeRegex();
+        boolean ignoreCase = property == PaidSignConditionProperty.IGNORE_CASE ? OptionState.getBooleanValue(
+                OptionState.fromString(newValue), sign.getIgnoreCase()) : condition.ignoreCase();
+        boolean ignoreColor = property == PaidSignConditionProperty.IGNORE_COLOR ? OptionState.getBooleanValue(
+                OptionState.fromString(newValue), sign.getIgnoreColor()) : condition.ignoreColor();
+
+        //Make sure to test the regular expression in case anything changed
+        if (executeRegEx && isRegExInvalid(sender, stringToMatch)) {
+            return false;
+        }
+
+        sign.addCondition(conditionIndex, stringToMatch, executeRegEx, OptionState.getFromBoolean(ignoreCase),
+                OptionState.getFromBoolean(ignoreColor));
+
+        try {
+            PaidSigns.getInstance().getSignManager().saveSigns();
+        } catch (IOException e) {
+            sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.ERROR_EXCEPTION_OCCURRED));
+            return false;
+        }
+
+        sender.sendMessage(StringFormatter.getTranslatedInfoMessage(
+                TranslatableMessage.SUCCESS_UPDATED_PAID_SIGN_CONDITION));
+        return true;
+    }
+
+}
+

src/main/java/net/knarcraft/paidsigns/command/EditTabCompleter.java

@@ -0,0 +1,176 @@
+package net.knarcraft.paidsigns.command;
+
+import net.knarcraft.paidsigns.PaidSigns;
+import net.knarcraft.paidsigns.container.PaidSign;
+import net.knarcraft.paidsigns.property.PaidSignConditionProperty;
+import net.knarcraft.paidsigns.property.PaidSignProperty;
+import net.knarcraft.paidsigns.utility.TabCompleteHelper;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * The tab completer for the edit paid sign command
+ */
+public class EditTabCompleter extends TokenizedTabCompleter {
+
+    private static Map<PaidSignProperty, List<String>> propertyExampleValues;
+    private static Map<PaidSignConditionProperty, List<String>> conditionPropertyExampleValues;
+
+    @Nullable
+    @Override
+    public List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label,
+                                      @NotNull String[] args) {
+        super.onTabComplete(sender, command, label, args);
+        if (propertyExampleValues == null) {
+            initializePropertyExampleValues();
+            initializeConditionPropertyExampleValues();
+        }
+
+        if (argumentSize == 1) {
+            return TabCompleteHelper.filterMatchingStartsWith(TabCompleteHelper.getPaidSignNames(), arguments.get(0));
+        } else if (argumentSize >= 2) {
+            PaidSign sign = PaidSigns.getInstance().getSignManager().getPaidSign(arguments.get(0));
+            if (sign != null) {
+                return tabCompleteForSign(sign);
+            }
+        }
+        return new ArrayList<>();
+    }
+
+    /**
+     * Returns tab completions for the given, non-null sign
+     *
+     * @param sign <p>The sign to tab complete for</p>
+     * @return <p>The tab complete options to give to users</p>
+     */
+    private List<String> tabCompleteForSign(@NotNull PaidSign sign) {
+        if (argumentSize == 2) {
+            List<String> conditions = getAvailableSignConditions(sign);
+            conditions.addAll(getPaidSignProperties());
+            return TabCompleteHelper.filterMatchingStartsWith(conditions, arguments.get(1));
+        } else if (argumentSize >= 3) {
+            try {
+                return tabCompleteSignLine(sign);
+            } catch (NumberFormatException exception) {
+                if (argumentSize == 3) {
+                    return tabCompleteProperty();
+                }
+            }
+        }
+        return new ArrayList<>();
+    }
+
+    /**
+     * Returns tab completions for the selected sign line
+     *
+     * @param sign <p>The paid sign the line belongs to</p>
+     * @return <p>The tab complete options to give to users</p>
+     */
+    private List<String> tabCompleteSignLine(@NotNull PaidSign sign) {
+        short signLine = (short) (Short.parseShort(arguments.get(1)) - 1);
+        //Refuse to autocomplete if invalid input is given
+        if (signLine < 0 || signLine > 3 || sign.getConditions().get(signLine) == null) {
+            return new ArrayList<>();
+        } else if (argumentSize == 3) {
+            return TabCompleteHelper.filterMatchingStartsWith(getPaidSignConditionProperties(), arguments.get(2));
+        } else if (argumentSize == 4) {
+            PaidSignConditionProperty property = PaidSignConditionProperty.getFromString(arguments.get(2));
+            if (property != null) {
+                return TabCompleteHelper.filterMatchingStartsWith(conditionPropertyExampleValues.get(property),
+                        arguments.get(3));
+            }
+        }
+        return new ArrayList<>();
+    }
+
+    /**
+     * Returns tab completions for the selected property
+     *
+     * @return <p>The tab complete options to give to users</p>
+     */
+    private List<String> tabCompleteProperty() {
+        PaidSignProperty paidSignProperty = PaidSignProperty.getFromString(arguments.get(1));
+        if (paidSignProperty != null) {
+            if (paidSignProperty == PaidSignProperty.PERMISSION) {
+                return TabCompleteHelper.tabCompletePermission(arguments.get(2));
+            } else {
+                return TabCompleteHelper.filterMatchingStartsWith(propertyExampleValues.get(paidSignProperty),
+                        arguments.get(2));
+            }
+        } else {
+            return new ArrayList<>();
+        }
+    }
+
+    /**
+     * Gets all paid sign condition properties
+     *
+     * @return <p>All paid sign condition properties</p>
+     */
+    private List<String> getPaidSignConditionProperties() {
+        List<String> properties = new ArrayList<>();
+        for (PaidSignConditionProperty property : PaidSignConditionProperty.values()) {
+            properties.add(property.getStringRepresentation());
+        }
+        return properties;
+    }
+
+    /**
+     * Gets all paid sign properties
+     *
+     * @return <p>All paid sign properties</p>
+     */
+    private List<String> getPaidSignProperties() {
+        List<String> properties = new ArrayList<>();
+        for (PaidSignProperty property : PaidSignProperty.values()) {
+            properties.add(property.getStringRepresentation());
+        }
+        return properties;
+    }
+
+    /**
+     * Gets all sign conditions available for the given sign
+     *
+     * @param sign <p>The sign to get available sign conditions for</p>
+     * @return <p>The available sign conditions</p>
+     */
+    private List<String> getAvailableSignConditions(PaidSign sign) {
+        List<String> availableConditions = new ArrayList<>();
+        for (Short signLine : sign.getConditions().keySet()) {
+            availableConditions.add(String.valueOf(signLine + 1));
+        }
+        return availableConditions;
+    }
+
+    /**
+     * Initializes the map for paid sign property example tab completions
+     */
+    private void initializePropertyExampleValues() {
+        propertyExampleValues = new HashMap<>();
+        propertyExampleValues.put(PaidSignProperty.COST, TabCompleteHelper.getCosts());
+        propertyExampleValues.put(PaidSignProperty.NAME, TabCompleteHelper.getPaidSignNames());
+        propertyExampleValues.put(PaidSignProperty.IGNORE_CASE, TabCompleteHelper.getOptionStates());
+        propertyExampleValues.put(PaidSignProperty.IGNORE_COLOR, TabCompleteHelper.getOptionStates());
+        propertyExampleValues.put(PaidSignProperty.MATCH_ANY_CONDITION, TabCompleteHelper.getBooleans());
+    }
+
+    /**
+     * Initializes the map for paid sign condition property example tab completions
+     */
+    private void initializeConditionPropertyExampleValues() {
+        conditionPropertyExampleValues = new HashMap<>();
+        conditionPropertyExampleValues.put(PaidSignConditionProperty.STRING_TO_MATCH,
+                TabCompleteHelper.getExampleConditionStrings());
+        conditionPropertyExampleValues.put(PaidSignConditionProperty.IGNORE_COLOR, TabCompleteHelper.getOptionStates());
+        conditionPropertyExampleValues.put(PaidSignConditionProperty.IGNORE_CASE, TabCompleteHelper.getOptionStates());
+        conditionPropertyExampleValues.put(PaidSignConditionProperty.EXECUTE_REG_EX, TabCompleteHelper.getBooleans());
+    }
+
+}

src/main/java/net/knarcraft/paidsigns/command/ListCommand.java

@@ -3,12 +3,20 @@ package net.knarcraft.paidsigns.command;
 import net.knarcraft.paidsigns.PaidSigns;
 import net.knarcraft.paidsigns.container.PaidSign;
 import net.knarcraft.paidsigns.container.PaidSignCondition;
+import net.knarcraft.paidsigns.formatting.StringFormatter;
+import net.knarcraft.paidsigns.formatting.TranslatableMessage;
+import net.knarcraft.paidsigns.formatting.Translator;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;
 import org.jetbrains.annotations.NotNull;
 
 import java.util.Map;
 
+import static net.knarcraft.paidsigns.formatting.StringFormatter.getTranslatedErrorMessage;
+import static net.knarcraft.paidsigns.formatting.StringFormatter.replacePlaceholder;
+import static net.knarcraft.paidsigns.formatting.StringFormatter.replacePlaceholders;
+import static net.knarcraft.paidsigns.formatting.StringFormatter.translateBoolean;
+
 /**
  * A representation of the command for listing information about paid signs
  */
@@ -19,10 +27,7 @@ public class ListCommand extends TokenizedCommand {
                              @NotNull String[] args) {
         super.onCommand(sender, command, label, args);
         if (argumentSize < 1) {
-            sender.sendMessage("Paid signs:");
+            displaySigns(sender);
-            for (String signName : PaidSigns.getInstance().getSignManager().getAllPaidSigns().keySet()) {
-                sender.sendMessage(" | " + signName);
-            }
             return true;
         } else if (argumentSize < 3) {
             return parsePaidSignSelection(sender);
@@ -30,6 +35,21 @@ public class ListCommand extends TokenizedCommand {
         return false;
     }
 
+    /**
+     * Displays all available signs
+     *
+     * @param sender <p>The command sender to display the signs to</p>
+     */
+    private void displaySigns(CommandSender sender) {
+        StringBuilder signs = new StringBuilder();
+        for (String signName : PaidSigns.getInstance().getSignManager().getAllPaidSigns().keySet()) {
+            signs.append(StringFormatter.replacePlaceholder(Translator.getTranslatedMessage(
+                    TranslatableMessage.PAID_SIGNS_INFO_FORMAT), "{name}", signName));
+        }
+        sender.sendMessage(StringFormatter.replacePlaceholder(Translator.getTranslatedMessage(
+                TranslatableMessage.PAID_SIGNS_INFO), "{signs}", signs.toString()));
+    }
+
     /**
      * Parses the given input and displays the wanted paid-sign information
      *
@@ -39,25 +59,30 @@ public class ListCommand extends TokenizedCommand {
     private boolean parsePaidSignSelection(CommandSender sender) {
         PaidSign paidSign = PaidSigns.getInstance().getSignManager().getPaidSign(arguments.get(0));
         if (paidSign == null) {
-            sender.sendMessage("No such paid sign");
+            sender.sendMessage(getTranslatedErrorMessage(TranslatableMessage.ERROR_PAID_SIGN_NOT_FOUND));
             return false;
         }
         if (argumentSize < 2) {
             displayPaidSign(sender, paidSign);
         } else {
-            short signLine;
+            short lineNumber;
             try {
-                signLine = (short) (Short.parseShort(arguments.get(1)) - 1);
+                lineNumber = (short) (Short.parseShort(arguments.get(1)) - 1);
+                if (lineNumber < 0 || lineNumber > 3) {
+                    sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.ERROR_INVALID_NUMBER));
+                    return false;
+                }
             } catch (NumberFormatException exception) {
-                sender.sendMessage("Invalid number given");
+                sender.sendMessage(getTranslatedErrorMessage(TranslatableMessage.ERROR_INVALID_NUMBER));
                 return false;
             }
-            if (!paidSign.getConditions().containsKey(signLine)) {
+            if (!paidSign.getConditions().containsKey(lineNumber)) {
-                sender.sendMessage("The paid sign you specified has no condition for line " + signLine);
+                sender.sendMessage(replacePlaceholder(getTranslatedErrorMessage(
+                        TranslatableMessage.ERROR_NO_SUCH_CONDITION), "{line}", String.valueOf(lineNumber)));
                 return false;
             }
-            PaidSignCondition condition = paidSign.getConditions().get(signLine);
+            PaidSignCondition condition = paidSign.getConditions().get(lineNumber);
-            displayPaidSignCondition(sender, paidSign.getName(), signLine, condition);
+            displayPaidSignCondition(sender, paidSign.getName(), lineNumber, condition);
         }
         return true;
     }
@@ -72,13 +97,11 @@ public class ListCommand extends TokenizedCommand {
      */
     private void displayPaidSignCondition(CommandSender sender, String signName, short signLine,
                                           PaidSignCondition condition) {
-        sender.sendMessage("Paid sign condition info: ");
+        sender.sendMessage(StringFormatter.replacePlaceholders(Translator.getTranslatedMessage(
-        sender.sendMessage("Paid sign name: " + signName);
+                TranslatableMessage.PAID_SIGN_CONDITION_INFO), new String[]{"{name}", "{line}", "{match}", "{regex}",
-        sender.sendMessage("Condition line: " + signLine);
+                "{case}", "{color}"}, new String[]{signName, String.valueOf(signLine + 1), condition.getStringToMatch(),
-        sender.sendMessage("Condition match string: " + condition.getStringToMatch());
+                translateBoolean(condition.executeRegex()), translateBoolean(condition.ignoreCase()),
-        sender.sendMessage("Execute RegEx: " + condition.executeRegex());
+                translateBoolean(condition.ignoreColor())}));
-        sender.sendMessage("Ignore case: " + condition.ignoreCase());
-        sender.sendMessage("Ignore color: " + condition.ignoreColor());
     }
 
     /**
@@ -88,17 +111,20 @@ public class ListCommand extends TokenizedCommand {
      * @param paidSign <p>The paid sign to display information about</p>
      */
     private void displayPaidSign(CommandSender sender, PaidSign paidSign) {
-        sender.sendMessage("Paid sign info:");
+        Map<Short, PaidSignCondition> signConditions = paidSign.getConditions();
-        sender.sendMessage("Name: " + paidSign.getName());
+        StringBuilder conditions = new StringBuilder();
-        sender.sendMessage("Cost: " + paidSign.getCost());
+        for (short lineIndex : signConditions.keySet()) {
-        sender.sendMessage("Permission: " + paidSign.getPermission());
+            String format = Translator.getTranslatedMessage(TranslatableMessage.PAID_SIGN_INFO_CONDITION_FORMAT);
-        sender.sendMessage("Ignore case: " + paidSign.getIgnoreCase());
+            conditions.append(StringFormatter.replacePlaceholders(format, new String[]{"{line}", "{condition}"},
-        sender.sendMessage("Ignore color: " + paidSign.getIgnoreColor());
+                    new String[]{String.valueOf((lineIndex + 1)), signConditions.get(lineIndex).getStringToMatch()}));
-        sender.sendMessage("Sign conditions: ");
-        Map<Short, PaidSignCondition> conditions = paidSign.getConditions();
-        for (short lineIndex : conditions.keySet()) {
-            sender.sendMessage(" | " + (lineIndex + 1) + ". " + conditions.get(lineIndex).getStringToMatch());
         }
+
+        sender.sendMessage(replacePlaceholders(Translator.getTranslatedMessage(
+                TranslatableMessage.PAID_SIGN_INFO), new String[]{"{name}", "{cost}", "{permission}", "{case}",
+                "{color}", "{any}", "{conditions}"}, new String[]{paidSign.getName(), String.valueOf(paidSign.getCost()),
+                paidSign.getPermission(), translateBoolean(paidSign.getIgnoreCase()),
+                translateBoolean(paidSign.getIgnoreColor()), translateBoolean(paidSign.matchAnyCondition()),
+                conditions.toString()}));
     }
 
 }

src/main/java/net/knarcraft/paidsigns/command/ReloadTabCommand.java

@@ -1,6 +1,8 @@
 package net.knarcraft.paidsigns.command;
 
 import net.knarcraft.paidsigns.PaidSigns;
+import net.knarcraft.paidsigns.formatting.StringFormatter;
+import net.knarcraft.paidsigns.formatting.TranslatableMessage;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;
 import org.bukkit.command.TabExecutor;
@@ -18,7 +20,7 @@ public class ReloadTabCommand implements TabExecutor {
     public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label,
                              @NotNull String[] args) {
         PaidSigns.getInstance().reload();
-        sender.sendMessage("PaidSigns reloaded");
+        sender.sendMessage(StringFormatter.getTranslatedInfoMessage(TranslatableMessage.SUCCESS_RELOADED));
         return true;
     }
 

src/main/java/net/knarcraft/paidsigns/command/RemoveConditionCommand.java

@@ -2,15 +2,14 @@ package net.knarcraft.paidsigns.command;
 
 import net.knarcraft.paidsigns.PaidSigns;
 import net.knarcraft.paidsigns.container.PaidSign;
+import net.knarcraft.paidsigns.formatting.StringFormatter;
+import net.knarcraft.paidsigns.formatting.TranslatableMessage;
 import net.knarcraft.paidsigns.manager.PaidSignManager;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;
 import org.jetbrains.annotations.NotNull;
 
 import java.io.IOException;
-import java.util.Arrays;
-import java.util.logging.Level;
-import java.util.logging.Logger;
 
 /**
  * A representation of the command for removing a condition from a sign
@@ -25,36 +24,38 @@ public class RemoveConditionCommand extends TokenizedCommand {
         }
 
         String name = arguments.get(0);
-        short line;
+        short lineNumber;
         try {
-            line = (short) (Short.parseShort(arguments.get(1)) - 1);
+            lineNumber = (short) (Short.parseShort(arguments.get(1)) - 1);
+            if (lineNumber < 0 || lineNumber > 3) {
+                sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.ERROR_INVALID_NUMBER));
+                return false;
+            }
         } catch (NumberFormatException exception) {
-            sender.sendMessage("Invalid line number given");
+            sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.ERROR_INVALID_NUMBER));
             return false;
         }
         PaidSignManager signManager = PaidSigns.getInstance().getSignManager();
         PaidSign sign = signManager.getPaidSign(name);
         if (sign == null) {
-            sender.sendMessage("Invalid sign name given");
+            sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.ERROR_PAID_SIGN_NOT_FOUND));
             return false;
         }
 
-        if (!sign.getConditions().containsKey(line)) {
+        if (!sign.getConditions().containsKey(lineNumber)) {
-            sender.sendMessage("No condition registered for line " + (line + 1));
+            sender.sendMessage(StringFormatter.replacePlaceholder(StringFormatter.getTranslatedErrorMessage(
+                    TranslatableMessage.ERROR_NO_SUCH_CONDITION), "{line}", String.valueOf((lineNumber + 1))));
             return false;
         }
 
-        sign.removeCondition(line);
+        sign.removeCondition(lineNumber);
         try {
             signManager.saveSigns();
         } catch (IOException e) {
-            Logger logger = PaidSigns.getInstance().getLogger();
+            sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.ERROR_EXCEPTION_OCCURRED));
-            logger.log(Level.SEVERE, "Exception encountered while trying to write to the data file");
-            logger.log(Level.SEVERE, Arrays.toString(e.getStackTrace()));
-            sender.sendMessage("An exception occurred. Please notify the server administrator or check the server log.");
             return false;
         }
-        sender.sendMessage("Condition removed");
+        sender.sendMessage(StringFormatter.getTranslatedInfoMessage(TranslatableMessage.SUCCESS_REMOVED_CONDITION));
         return true;
     }
 

src/main/java/net/knarcraft/paidsigns/command/RemoveTabCommand.java

@@ -1,7 +1,9 @@
 package net.knarcraft.paidsigns.command;
 
 import net.knarcraft.paidsigns.PaidSigns;
-import net.knarcraft.paidsigns.container.PaidSign;
+import net.knarcraft.paidsigns.formatting.StringFormatter;
+import net.knarcraft.paidsigns.formatting.TranslatableMessage;
+import net.knarcraft.paidsigns.utility.TabCompleteHelper;
 import net.knarcraft.paidsigns.utility.Tokenizer;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;
@@ -11,11 +13,7 @@ import org.jetbrains.annotations.Nullable;
 
 import java.io.IOException;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.List;
-import java.util.Map;
-import java.util.logging.Level;
-import java.util.logging.Logger;
 
 /**
  * A representation of the command for removing a paid sign
@@ -33,17 +31,15 @@ public class RemoveTabCommand implements TabExecutor {
 
         try {
             if (PaidSigns.getInstance().getSignManager().removePaidSign(name)) {
-                sender.sendMessage("Successfully removed paid sign");
+                sender.sendMessage(StringFormatter.getTranslatedInfoMessage(
+                        TranslatableMessage.SUCCESS_REMOVED_PAID_SIGN));
             } else {
-                sender.sendMessage("No matching paid sign was found");
+                sender.sendMessage(StringFormatter.getTranslatedErrorMessage(
+                        TranslatableMessage.ERROR_PAID_SIGN_NOT_FOUND));
             }
             return true;
         } catch (IOException e) {
-            Logger logger = PaidSigns.getInstance().getLogger();
+            sender.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.ERROR_EXCEPTION_OCCURRED));
-            logger.log(Level.SEVERE, "Exception encountered while trying to write " +
-                    "to the data file");
-            logger.log(Level.SEVERE, Arrays.toString(e.getStackTrace()));
-            sender.sendMessage("An exception occurred. Please notify the server administrator or check the server log.");
         }
         return false;
     }
@@ -56,12 +52,7 @@ public class RemoveTabCommand implements TabExecutor {
         int argumentSize = args[args.length - 1].isEmpty() ? arguments.size() : arguments.size() - 1;
 
         if (argumentSize < 1) {
-            Map<String, PaidSign> allPaidSigns = PaidSigns.getInstance().getSignManager().getAllPaidSigns();
+            return TabCompleteHelper.getPaidSignNames();
-            List<String> signNames = new ArrayList<>();
-            for (String name : allPaidSigns.keySet()) {
-                signNames.add("\"" + name + "\"");
-            }
-            return signNames;
         } else {
             return new ArrayList<>();
         }

src/main/java/net/knarcraft/paidsigns/command/TokenizedCommand.java

@@ -1,5 +1,7 @@
 package net.knarcraft.paidsigns.command;
 
+import net.knarcraft.paidsigns.formatting.StringFormatter;
+import net.knarcraft.paidsigns.formatting.TranslatableMessage;
 import net.knarcraft.paidsigns.utility.Tokenizer;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
@@ -7,6 +9,8 @@ import org.bukkit.command.CommandSender;
 import org.jetbrains.annotations.NotNull;
 
 import java.util.List;
+import java.util.regex.Pattern;
+import java.util.regex.PatternSyntaxException;
 
 /**
  * A command executor with tokenized arguments
@@ -23,4 +27,22 @@ public class TokenizedCommand implements CommandExecutor {
         return true;
     }
 
+    /**
+     * Tests whether the given regular expression is valid
+     *
+     * @param sender            <p>The command sender to notify if the regular expression is invalid</p>
+     * @param regularExpression <p>The regular expression to test</p>
+     * @return <p>True if the regular expression is invalid</p>
+     */
+    protected boolean isRegExInvalid(CommandSender sender, String regularExpression) {
+        try {
+            Pattern.compile(regularExpression);
+            return false;
+        } catch (PatternSyntaxException exception) {
+            sender.sendMessage(StringFormatter.getTranslatedErrorMessage(
+                    TranslatableMessage.ERROR_INVALID_REGULAR_EXPRESSION));
+            return true;
+        }
+    }
+
 }

src/main/java/net/knarcraft/paidsigns/container/PaidSign.java

@@ -16,6 +16,7 @@ public class PaidSign {
     private final String permission;
     private final OptionState ignoreCase;
     private final OptionState ignoreColor;
+    private final boolean matchAnyCondition;
     private final Map<Short, PaidSignCondition> conditions = new HashMap<>();
 
     /**
@@ -26,8 +27,10 @@ public class PaidSign {
      * @param permission        <p>The permission required to create the sign this paid sign matches</p>
      * @param ignoreCase        <p>Whether to ignore case when looking for this permission sign</p>
      * @param ignoreColor       <p>Whether to ignore color when looking for this permission sign</p>
+     * @param matchAnyCondition <p>Whether to treat a match for any condition as a sign match</p>
      */
-    public PaidSign(String name, double cost, String permission, OptionState ignoreCase, OptionState ignoreColor) {
+    public PaidSign(String name, double cost, String permission, OptionState ignoreCase, OptionState ignoreColor,
+                    boolean matchAnyCondition) {
         if (name == null || name.trim().isBlank()) {
             throw new IllegalArgumentException("Name cannot be empty");
         }
@@ -42,6 +45,7 @@ public class PaidSign {
         this.permission = permission;
         this.ignoreCase = ignoreCase;
         this.ignoreColor = ignoreColor;
+        this.matchAnyCondition = matchAnyCondition;
     }
 
     /**
@@ -98,6 +102,15 @@ public class PaidSign {
         return OptionState.getBooleanValue(this.ignoreColor, PaidSigns.getInstance().ignoreColor());
     }
 
+    /**
+     * Gets whether to treat a match for any condition as a sign match
+     *
+     * @return <p>Whether to treat a match for any condition as a sign match</p>
+     */
+    public boolean matchAnyCondition() {
+        return this.matchAnyCondition;
+    }
+
     /**
      * Checks whether this paid sign matches the given set of sign lines
      *
@@ -109,11 +122,18 @@ public class PaidSign {
         if (this.conditions.isEmpty()) {
             return false;
         }
-        boolean success = true;
+        boolean matchAny = matchAnyCondition();
+        boolean success = !matchAny;
         for (short i = 0; i < 4; i++) {
             PaidSignCondition condition = this.conditions.get(i);
             if (condition != null) {
-                success = success && condition.test(lines[i]);
+                boolean conditionMatches = condition.test(lines[i]);
+                if (matchAny) {
+                    success |= conditionMatches;
+                } else {
+                    success &= conditionMatches;
+                }
+
             }
         }
         return success;

src/main/java/net/knarcraft/paidsigns/formatting/StringFormatter.java

@@ -0,0 +1,125 @@
+package net.knarcraft.paidsigns.formatting;
+
+import net.md_5.bungee.api.ChatColor;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * A formatter for formatting displayed messages
+ */
+public final class StringFormatter {
+
+    private StringFormatter() {
+
+    }
+
+    /**
+     * Translates the given boolean value
+     *
+     * @param booleanValue <p>The boolean value to translate</p>
+     * @return <p>The translation of the boolean value</p>
+     */
+    public static String translateBoolean(boolean booleanValue) {
+        if (booleanValue) {
+            return Translator.getTranslatedMessage(TranslatableMessage.BOOLEAN_TRUE);
+        } else {
+            return Translator.getTranslatedMessage(TranslatableMessage.BOOLEAN_FALSE);
+        }
+    }
+
+    /**
+     * Replaces a placeholder in a string
+     *
+     * @param input       <p>The input string to replace in</p>
+     * @param placeholder <p>The placeholder to replace</p>
+     * @param replacement <p>The replacement value</p>
+     * @return <p>The input string with the placeholder replaced</p>
+     */
+    public static String replacePlaceholder(String input, String placeholder, String replacement) {
+        return input.replace(placeholder, replacement);
+    }
+
+    /**
+     * Replaces placeholders in a string
+     *
+     * @param input        <p>The input string to replace in</p>
+     * @param placeholders <p>The placeholders to replace</p>
+     * @param replacements <p>The replacement values</p>
+     * @return <p>The input string with placeholders replaced</p>
+     */
+    public static String replacePlaceholders(String input, String[] placeholders, String[] replacements) {
+        for (int i = 0; i < Math.min(placeholders.length, replacements.length); i++) {
+            input = replacePlaceholder(input, placeholders[i], replacements[i]);
+        }
+        return input;
+    }
+
+    /**
+     * Gets a translated and formatted info message
+     *
+     * @param translatableMessage <p>The translatable message to translate and format</p>
+     * @return <p>The translated and formatted message</p>
+     */
+    public static String getTranslatedInfoMessage(TranslatableMessage translatableMessage) {
+        return formatInfoMessage(Translator.getTranslatedMessage(translatableMessage));
+    }
+
+    /**
+     * Gets a translated and formatted error message
+     *
+     * @param translatableMessage <p>The translatable message to translate and format</p>
+     * @return <p>The translated and formatted message</p>
+     */
+    public static String getTranslatedErrorMessage(TranslatableMessage translatableMessage) {
+        return formatErrorMessage(Translator.getTranslatedMessage(translatableMessage));
+    }
+
+    /**
+     * Formats an information message by adding the prefix and text color
+     *
+     * @param message <p>The message to format</p>
+     * @return <p>The formatted message</p>
+     */
+    public static String formatInfoMessage(String message) {
+        return ChatColor.DARK_GREEN + formatMessage(message);
+    }
+
+    /**
+     * Formats an error message by adding the prefix and text color
+     *
+     * @param message <p>The message to format</p>
+     * @return <p>The formatted message</p>
+     */
+    public static String formatErrorMessage(String message) {
+        return ChatColor.DARK_RED + formatMessage(message);
+    }
+
+    /**
+     * Translates all found color codes to formatting in a string
+     *
+     * @param message <p>The string to search for color codes</p>
+     * @return <p>The message with color codes translated</p>
+     */
+    public static String translateAllColorCodes(String message) {
+        message = ChatColor.translateAlternateColorCodes('&', message);
+        Pattern pattern = Pattern.compile("(#[a-fA-F0-9]{6})");
+        Matcher matcher = pattern.matcher(message);
+        while (matcher.find()) {
+            message = message.replace(matcher.group(), "" + ChatColor.of(matcher.group()));
+        }
+        return message;
+    }
+
+    /**
+     * Formats a message by adding the prefix and text color
+     *
+     * @param message <p>The message to format</p>
+     * @return <p>The formatted message</p>
+     */
+    private static String formatMessage(String message) {
+        return Translator.getTranslatedMessage(TranslatableMessage.PREFIX) + " " +
+                ChatColor.RESET + message;
+    }
+
+}

src/main/java/net/knarcraft/paidsigns/formatting/TranslatableMessage.java

@@ -0,0 +1,138 @@
+package net.knarcraft.paidsigns.formatting;
+
+/**
+ * An enum representing all translatable messages
+ */
+public enum TranslatableMessage {
+
+    /**
+     * The prefix to display in messages
+     */
+    PREFIX,
+
+    /**
+     * The message to display when a paid sign is successfully added
+     */
+    SUCCESS_ADDED_PAID_SIGN,
+
+    /**
+     * The message to display when a paid sign condition is successfully added
+     */
+    SUCCESS_ADDED_PAID_SIGN_CONDITION,
+
+    /**
+     * The message to display when a paid sign is successfully updated
+     */
+    SUCCESS_UPDATED_PAID_SIGN,
+
+    /**
+     * The message to display when a paid sign condition is successfully updated
+     */
+    SUCCESS_UPDATED_PAID_SIGN_CONDITION,
+
+    /**
+     * The message to display when a paid sign has been successfully removed
+     */
+    SUCCESS_REMOVED_PAID_SIGN,
+
+    /**
+     * The message to display when a paid sign condition has been successfully removed
+     */
+    SUCCESS_REMOVED_CONDITION,
+
+    /**
+     * The message to display after the plugin has been reloaded
+     */
+    SUCCESS_RELOADED,
+
+    /**
+     * The message to display when a player has been charged for creating a paid sign
+     */
+    SUCCESS_PAID_FOR_SIGN,
+
+    /**
+     * The message to display when a player has been refunded for breaking a sign
+     */
+    SUCCESS_REFUNDED,
+
+    /**
+     * The info text used to display all paid signs
+     */
+    PAID_SIGNS_INFO,
+
+    /**
+     * The format used for displaying a paid sign's name
+     */
+    PAID_SIGNS_INFO_FORMAT,
+
+    /**
+     * The info text used to display information about a paid sign
+     */
+    PAID_SIGN_INFO,
+
+    /**
+     * The info text used to display information about a paid sign condition
+     */
+    PAID_SIGN_CONDITION_INFO,
+
+    /**
+     * The format used for displaying one of a paid sign's conditions
+     */
+    PAID_SIGN_INFO_CONDITION_FORMAT,
+
+    /**
+     * The message to display for a true boolean value
+     */
+    BOOLEAN_TRUE,
+
+    /**
+     * The message to display for a false boolean value
+     */
+    BOOLEAN_FALSE,
+
+    /**
+     * The error to display when a command argument contains an invalid number
+     */
+    ERROR_INVALID_NUMBER,
+
+    /**
+     * The error to display if a paid sign name duplicate is encountered
+     */
+    ERROR_NAME_DUPLICATE,
+
+    /**
+     * The error to display if a severe exception occurs
+     */
+    ERROR_EXCEPTION_OCCURRED,
+
+    /**
+     * The error to display if some input is invalid
+     */
+    ERROR_INVALID_INPUT,
+
+    /**
+     * The error to display if a specified paid sign is not found
+     */
+    ERROR_PAID_SIGN_NOT_FOUND,
+
+    /**
+     * The error to display if a paid sign condition is specified, but does not exist
+     */
+    ERROR_NO_SUCH_CONDITION,
+
+    /**
+     * The error to display if a player cannot pay for a sign matching a paid sign
+     */
+    ERROR_CANNOT_AFFORD,
+
+    /**
+     * The error to display if an invalid regular expression is provided
+     */
+    ERROR_INVALID_REGULAR_EXPRESSION,
+
+    /**
+     * The error to display if an invalid property is given to the edit command
+     */
+    ERROR_PROPERTY_NOT_RECOGNIZED,
+
+}

src/main/java/net/knarcraft/paidsigns/formatting/Translator.java

@@ -0,0 +1,118 @@
+package net.knarcraft.paidsigns.formatting;
+
+import net.knarcraft.paidsigns.PaidSigns;
+import net.knarcraft.paidsigns.utility.FileHelper;
+import org.bukkit.configuration.file.YamlConfiguration;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.InputStreamReader;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.logging.Level;
+
+/**
+ * A tool to get strings translated to the correct language
+ */
+public final class Translator {
+
+    private static Map<TranslatableMessage, String> translatedMessages;
+    private static Map<TranslatableMessage, String> backupTranslatedMessages;
+
+    private Translator() {
+
+    }
+
+    /**
+     * Loads the languages used by this translator
+     */
+    public static void loadLanguages(String selectedLanguage) {
+        backupTranslatedMessages = loadTranslatedMessages("en");
+        translatedMessages = loadCustomTranslatedMessages(selectedLanguage);
+        if (translatedMessages == null) {
+            translatedMessages = loadTranslatedMessages(selectedLanguage);
+        }
+    }
+
+    /**
+     * Gets a translated version of the given translatable message
+     *
+     * @param translatableMessage <p>The message to translate</p>
+     * @return <p>The translated message</p>
+     */
+    public static String getTranslatedMessage(TranslatableMessage translatableMessage) {
+        if (translatedMessages == null) {
+            return "Translated strings not loaded";
+        }
+        String translatedMessage;
+        if (translatedMessages.containsKey(translatableMessage)) {
+            translatedMessage = translatedMessages.get(translatableMessage);
+        } else if (backupTranslatedMessages.containsKey(translatableMessage)) {
+            translatedMessage = backupTranslatedMessages.get(translatableMessage);
+        } else {
+            translatedMessage = translatableMessage.toString();
+        }
+        return StringFormatter.translateAllColorCodes(translatedMessage);
+    }
+
+    /**
+     * Loads all translated messages for the given language
+     *
+     * @param language <p>The language chosen by the user</p>
+     * @return <p>A mapping of all strings for the given language</p>
+     */
+    public static Map<TranslatableMessage, String> loadTranslatedMessages(String language) {
+        try {
+            BufferedReader reader = FileHelper.getBufferedReaderForInternalFile("/strings.yml");
+            return loadTranslatableMessages(language, reader);
+        } catch (FileNotFoundException e) {
+            PaidSigns.getInstance().getLogger().log(Level.SEVERE, "Unable to load translated messages");
+            return null;
+        }
+    }
+
+    /**
+     * Tries to load translated messages from a custom strings.yml file
+     *
+     * @param language <p>The selected language</p>
+     * @return <p>The loaded translated strings, or null if no custom language file exists</p>
+     */
+    public static Map<TranslatableMessage, String> loadCustomTranslatedMessages(String language) {
+        File strings = new File(PaidSigns.getInstance().getDataFolder(), "strings.yml");
+        if (!strings.exists()) {
+            PaidSigns.getInstance().getLogger().log(Level.FINEST, "Strings file not found");
+            return null;
+        }
+
+        try {
+            PaidSigns.getInstance().getLogger().log(Level.WARNING, "Loading custom strings...");
+            return loadTranslatableMessages(language, new BufferedReader(new InputStreamReader(new FileInputStream(strings))));
+        } catch (FileNotFoundException e) {
+            PaidSigns.getInstance().getLogger().log(Level.WARNING, "Unable to load custom messages");
+            return null;
+        }
+    }
+
+    /**
+     * Loads translatable messages from the given reader
+     *
+     * @param language <p>The selected language</p>
+     * @param reader   <p>The buffered reader to read from</p>
+     * @return <p>The loaded translated strings</p>
+     */
+    private static Map<TranslatableMessage, String> loadTranslatableMessages(String language, BufferedReader reader) {
+        Map<TranslatableMessage, String> translatedMessages = new HashMap<>();
+        YamlConfiguration configuration = YamlConfiguration.loadConfiguration(reader);
+
+        for (TranslatableMessage message : TranslatableMessage.values()) {
+            String translated = configuration.getString(language + "." + message.toString());
+            if (translated != null) {
+                translatedMessages.put(message, translated);
+            }
+        }
+        return translatedMessages;
+    }
+
+}

src/main/java/net/knarcraft/paidsigns/listener/BlockBreakListener.java

@@ -1,35 +0,0 @@
-package net.knarcraft.paidsigns.listener;
-
-import net.knarcraft.paidsigns.PaidSigns;
-import net.knarcraft.paidsigns.manager.TrackedSignManager;
-import org.bukkit.block.Sign;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.EventPriority;
-import org.bukkit.event.Listener;
-import org.bukkit.event.block.BlockBreakEvent;
-
-import java.io.IOException;
-import java.util.Arrays;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-/**
- * A listener that listens for any tracked signs being broken
- */
-public class BlockBreakListener implements Listener {
-
-    @EventHandler(priority = EventPriority.MONITOR)
-    public void onBlockBreak(BlockBreakEvent event) {
-        if (event.getBlock().getState() instanceof Sign) {
-            try {
-                TrackedSignManager.removeTrackedSign(event.getBlock().getLocation());
-            } catch (IOException e) {
-                e.printStackTrace();
-                Logger logger = PaidSigns.getInstance().getLogger();
-                logger.log(Level.SEVERE, "Exception encountered while trying to write to the data file");
-                logger.log(Level.SEVERE, Arrays.toString(e.getStackTrace()));
-            }
-        }
-    }
-
-}

src/main/java/net/knarcraft/paidsigns/listener/SignBreakListener.java

@@ -0,0 +1,103 @@
+package net.knarcraft.paidsigns.listener;
+
+import net.knarcraft.paidsigns.PaidSigns;
+import net.knarcraft.paidsigns.manager.TrackedSignManager;
+import org.bukkit.block.Block;
+import org.bukkit.block.Sign;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+import org.bukkit.event.block.BlockBreakEvent;
+import org.bukkit.event.block.BlockExplodeEvent;
+import org.bukkit.event.block.BlockPistonExtendEvent;
+import org.bukkit.event.block.BlockPistonRetractEvent;
+import org.bukkit.event.entity.EntityChangeBlockEvent;
+import org.bukkit.event.entity.EntityExplodeEvent;
+
+import java.io.IOException;
+import java.util.List;
+
+/**
+ * A listener that listens for any tracked signs being broken
+ */
+public class SignBreakListener implements Listener {
+
+    @EventHandler(priority = EventPriority.MONITOR)
+    public void onBlockBreak(BlockBreakEvent event) {
+        if (event.isCancelled()) {
+            return;
+        }
+        removeTrackedSign(event.getBlock(), true);
+    }
+
+    @EventHandler(priority = EventPriority.MONITOR)
+    public void onExplosion(BlockExplodeEvent event) {
+        if (event.isCancelled()) {
+            return;
+        }
+        removeTrackedSigns(event.blockList());
+    }
+
+    @EventHandler(priority = EventPriority.MONITOR)
+    public void onEntityExplosion(EntityExplodeEvent event) {
+        if (event.isCancelled()) {
+            return;
+        }
+        removeTrackedSigns(event.blockList());
+    }
+
+    @EventHandler(priority = EventPriority.MONITOR)
+    public void onPistonPush(BlockPistonExtendEvent event) {
+        if (event.isCancelled()) {
+            return;
+        }
+        removeTrackedSigns(event.getBlocks());
+    }
+
+    @EventHandler(priority = EventPriority.MONITOR)
+    public void onPistonPull(BlockPistonRetractEvent event) {
+        if (event.isCancelled()) {
+            return;
+        }
+        removeTrackedSigns(event.getBlocks());
+    }
+
+    @EventHandler(priority = EventPriority.MONITOR)
+    public void onEntityBlockChange(EntityChangeBlockEvent event) {
+        if (event.isCancelled()) {
+            return;
+        }
+        if (event.getEntity() instanceof Player) {
+            return;
+        }
+        removeTrackedSign(event.getBlock(), PaidSigns.getInstance().refundAlways());
+    }
+
+    /**
+     * Removes all tracked signs from the given blocks
+     *
+     * @param blocks <p>The blocks to search for tracked signs</p>
+     */
+    private void removeTrackedSigns(List<Block> blocks) {
+        for (Block block : blocks) {
+            removeTrackedSign(block, PaidSigns.getInstance().refundAlways());
+        }
+    }
+
+    /**
+     * Tries to remove any tracked sign at the given block
+     *
+     * @param block  <p>The block that might be a sign</p>
+     * @param refund <p>Whether to perform a refund after un-tracking the sign</p>
+     */
+    private void removeTrackedSign(Block block, boolean refund) {
+        if (block.getState() instanceof Sign) {
+            try {
+                TrackedSignManager.removeTrackedSign(block.getLocation(), refund);
+            } catch (IOException ignored) {
+            }
+        }
+    }
+
+}

src/main/java/net/knarcraft/paidsigns/listener/SignListener.java

@@ -2,6 +2,8 @@ package net.knarcraft.paidsigns.listener;
 
 import net.knarcraft.paidsigns.PaidSigns;
 import net.knarcraft.paidsigns.container.PaidSign;
+import net.knarcraft.paidsigns.formatting.StringFormatter;
+import net.knarcraft.paidsigns.formatting.TranslatableMessage;
 import net.knarcraft.paidsigns.manager.EconomyManager;
 import net.knarcraft.paidsigns.manager.TrackedSignManager;
 import org.bukkit.entity.Player;
@@ -11,10 +13,7 @@ import org.bukkit.event.Listener;
 import org.bukkit.event.block.SignChangeEvent;
 
 import java.io.IOException;
-import java.util.Arrays;
 import java.util.Map;
-import java.util.logging.Level;
-import java.util.logging.Logger;
 
 /**
  * A listener for listening to registered paid signs
@@ -72,19 +71,17 @@ public class SignListener implements Listener {
         double cost = paidSign.getCost();
         boolean canAfford = EconomyManager.canAfford(player, cost);
         if (!canAfford) {
-            player.sendMessage("[PaidSigns] You cannot afford to create this sign");
+            player.sendMessage(StringFormatter.getTranslatedErrorMessage(TranslatableMessage.ERROR_CANNOT_AFFORD));
             event.setCancelled(true);
         } else {
             String unit = EconomyManager.getCurrency(cost != 1);
-            player.sendMessage(String.format("[PaidSigns] You paid %.2f %s to create the sign", cost, unit));
             EconomyManager.withdraw(player, cost);
+            player.sendMessage(String.format(StringFormatter.replacePlaceholders(
+                    StringFormatter.getTranslatedInfoMessage(TranslatableMessage.SUCCESS_PAID_FOR_SIGN),
+                    new String[]{"{cost}", "{unit}"}, new String[]{"%.2f", "%s"}), cost, unit));
             try {
                 TrackedSignManager.addTrackedSign(event.getBlock().getLocation(), player.getUniqueId(), cost);
-            } catch (IOException e) {
+            } catch (IOException ignored) {
-                e.printStackTrace();
-                Logger logger = PaidSigns.getInstance().getLogger();
-                logger.log(Level.SEVERE, "Exception encountered while trying to write to the data file");
-                logger.log(Level.SEVERE, Arrays.toString(e.getStackTrace()));
             }
         }
     }

src/main/java/net/knarcraft/paidsigns/manager/EconomyManager.java

@@ -58,4 +58,14 @@ public final class EconomyManager {
         economy.withdrawPlayer(player, cost);
     }
 
+    /**
+     * Deposits a given sum into the given player's account
+     *
+     * @param player <p>The player to deposit money to</p>
+     * @param sum    <p>The amount of money to deposit</p>
+     */
+    public static void deposit(OfflinePlayer player, double sum) {
+        economy.depositPlayer(player, sum);
+    }
+
 }

src/main/java/net/knarcraft/paidsigns/manager/PaidSignManager.java

@@ -9,9 +9,11 @@ import org.bukkit.configuration.file.YamlConfiguration;
 
 import java.io.File;
 import java.io.IOException;
+import java.util.Arrays;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.logging.Level;
+import java.util.logging.Logger;
 
 /**
  * A manager that keeps track of all registered paid signs
@@ -96,7 +98,8 @@ public final class PaidSignManager {
             String permission = signSection.getString(name + ".permission");
             OptionState ignoreCase = OptionState.getFromBoolean(signSection.getBoolean(name + ".ignoreCase"));
             OptionState ignoreColor = OptionState.getFromBoolean(signSection.getBoolean(name + ".ignoreColor"));
-            PaidSign sign = new PaidSign(name, cost, permission, ignoreCase, ignoreColor);
+            boolean matchAnyCondition = signSection.getBoolean(name + ".matchAnyCondition");
+            PaidSign sign = new PaidSign(name, cost, permission, ignoreCase, ignoreColor, matchAnyCondition);
             loadConditions(signSection, sign);
             paidSigns.put(name, sign);
         }
@@ -119,15 +122,36 @@ public final class PaidSignManager {
      * @throws IOException <p>If unable to write to the signs file</p>
      */
     public static void saveSigns(Map<String, PaidSign> signs) throws IOException {
+        try {
             YamlConfiguration configuration = YamlConfiguration.loadConfiguration(signsFile);
             ConfigurationSection signSection = configuration.createSection("paidSigns");
 
             for (PaidSign sign : signs.values()) {
+                saveSign(signSection, sign);
+            }
+            configuration.save(signsFile);
+        } catch (IOException exception) {
+            Logger logger = PaidSigns.getInstance().getLogger();
+            logger.log(Level.SEVERE, "Exception encountered while trying to write " +
+                    "to the data file");
+            logger.log(Level.SEVERE, Arrays.toString(exception.getStackTrace()));
+            throw exception;
+        }
+    }
+
+    /**
+     * Saves the given sign to the given configuration section
+     *
+     * @param signSection <p>The configuration section to save the sign to</p>
+     * @param sign        <p>The sign to save</p>
+     */
+    private static void saveSign(ConfigurationSection signSection, PaidSign sign) {
         String name = sign.getName();
         signSection.set(name + ".cost", sign.getCost());
         signSection.set(name + ".permission", sign.getPermission());
         signSection.set(name + ".ignoreCase", sign.getIgnoreCase());
         signSection.set(name + ".ignoreColor", sign.getIgnoreColor());
+        signSection.set(name + ".matchAnyCondition", sign.matchAnyCondition());
         ConfigurationSection conditionsSection = signSection.createSection(name + ".conditions");
         Map<Short, PaidSignCondition> signConditions = sign.getConditions();
         for (short lineIndex : signConditions.keySet()) {
@@ -138,8 +162,6 @@ public final class PaidSignManager {
             conditionsSection.set(lineIndex + ".ignoreColor", condition.ignoreColor());
         }
     }
-        configuration.save(signsFile);
-    }
 
     /**
      * Loads any saved paid sign conditions and applies them to the given sign

src/main/java/net/knarcraft/paidsigns/manager/TrackedSignManager.java

@@ -2,9 +2,12 @@ package net.knarcraft.paidsigns.manager;
 
 import net.knarcraft.paidsigns.PaidSigns;
 import net.knarcraft.paidsigns.container.TrackedSign;
+import net.knarcraft.paidsigns.formatting.StringFormatter;
+import net.knarcraft.paidsigns.formatting.TranslatableMessage;
 import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.OfflinePlayer;
+import org.bukkit.block.Sign;
 import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.configuration.InvalidConfigurationException;
 import org.bukkit.configuration.file.YamlConfiguration;
@@ -46,23 +49,27 @@ public final class TrackedSignManager {
      * Removes a tracked sign from the manager
      *
      * @param signLocation <p>The location the sign was removed from</p>
+     * @param refund       <p>Whether to perform a refund after un-tracking the sign</p>
      * @throws IOException <p>If unable to save the tracked signs</p>
      */
-    public static void removeTrackedSign(Location signLocation) throws IOException {
+    public static void removeTrackedSign(Location signLocation, boolean refund) throws IOException {
         if (!trackedSigns.containsKey(signLocation)) {
             return;
         }
         TrackedSign trackedSign = trackedSigns.get(signLocation);
         trackedSigns.remove(signLocation);
         saveTrackedSigns();
-        if (!PaidSigns.getInstance().areRefundsEnabled()) {
+        if (!PaidSigns.getInstance().areRefundsEnabled() || !refund) {
             return;
         }
         OfflinePlayer offlinePlayer = Bukkit.getOfflinePlayer(trackedSign.getPlayerId());
         double refundSum = trackedSign.getCost() / 100 * PaidSigns.getInstance().getRefundPercentage();
-        EconomyManager.withdraw(offlinePlayer, -refundSum);
+        EconomyManager.deposit(offlinePlayer, refundSum);
         if (offlinePlayer instanceof Player player) {
-            player.sendMessage("You were refunded " + refundSum + " for your broken sign");
+            player.sendMessage(String.format(StringFormatter.replacePlaceholders(
+                            StringFormatter.getTranslatedInfoMessage(TranslatableMessage.SUCCESS_REFUNDED),
+                            new String[]{"{cost}", "{unit}"}, new String[]{"%.2f", "%s"}), refundSum,
+                    EconomyManager.getCurrency(refundSum != 1)));
         }
     }
 
@@ -107,6 +114,13 @@ public final class TrackedSignManager {
             throw new InvalidConfigurationException("Invalid sign coordinates");
         }
 
+        //Prevent destroyed signs from being tracked indefinitely
+        if (!(signLocation.getBlock().getState() instanceof Sign)) {
+            PaidSigns.getInstance().getLogger().log(Level.WARNING, "The sign at " + signLocation + " no longer " +
+                    "exists. Removing from sign tracker.");
+            return;
+        }
+
         double cost = signSection.getDouble(key + ".cost");
         UUID playerId = UUID.fromString(Objects.requireNonNull(signSection.getString(key + ".playerId")));
 

src/main/java/net/knarcraft/paidsigns/property/PaidSignConditionProperty.java

@@ -0,0 +1,63 @@
+package net.knarcraft.paidsigns.property;
+
+/**
+ * A representation of a paid sign condition's editable properties
+ */
+public enum PaidSignConditionProperty {
+
+    /**
+     * The string used to trigger the paid sign condition
+     */
+    STRING_TO_MATCH("stringToMatch"),
+
+    /**
+     * Whether to execute the match string as a regular expression
+     */
+    EXECUTE_REG_EX("executeRegEx"),
+
+    /**
+     * Whether to ignore case for the sign condition
+     */
+    IGNORE_CASE("ignoreCase"),
+
+    /**
+     * Whether to ignore color for the sign condition
+     */
+    IGNORE_COLOR("ignoreColor");
+
+    private final String stringRepresentation;
+
+    /**
+     * Instantiates a new paid sign condition property
+     *
+     * @param stringRepresentation <p>The string representation of the paid sign condition property</p>
+     */
+    PaidSignConditionProperty(String stringRepresentation) {
+        this.stringRepresentation = stringRepresentation;
+    }
+
+    /**
+     * Gets the string representation of this paid sign condition property
+     *
+     * @return <p>The string representation of this paid sign condition property</p>
+     */
+    public String getStringRepresentation() {
+        return this.stringRepresentation;
+    }
+
+    /**
+     * Gets the paid sign property matching the given string
+     *
+     * @param propertyString <p>The string representing a paid sign condition property</p>
+     * @return <p>The matching paid sign condition property, or null if no such property exists</p>
+     */
+    public static PaidSignConditionProperty getFromString(String propertyString) {
+        for (PaidSignConditionProperty paidSignProperty : PaidSignConditionProperty.values()) {
+            if (paidSignProperty.getStringRepresentation().equalsIgnoreCase(propertyString)) {
+                return paidSignProperty;
+            }
+        }
+        return null;
+    }
+
+}

src/main/java/net/knarcraft/paidsigns/property/PaidSignProperty.java

@@ -0,0 +1,73 @@
+package net.knarcraft.paidsigns.property;
+
+/**
+ * A representation of a paid sign's editable properties
+ */
+public enum PaidSignProperty {
+
+    /**
+     * The name of a paid sign
+     */
+    NAME("name"),
+
+    /**
+     * The cost of creating a sign matching the paid sign
+     */
+    COST("cost"),
+
+    /**
+     * The permission required to create the plugin sign matching the paid sign
+     */
+    PERMISSION("permission"),
+
+    /**
+     * Whether to ignore case for any sign conditions added to the sign
+     */
+    IGNORE_CASE("ignoreCase"),
+
+    /**
+     * Whether to ignore color for any sign conditions added to the sign
+     */
+    IGNORE_COLOR("ignoreColor"),
+
+    /**
+     * Whether to treat a single condition match as a full match
+     */
+    MATCH_ANY_CONDITION("matchAnyCondition");
+
+    private final String stringRepresentation;
+
+    /**
+     * Instantiates a new paid sign property
+     *
+     * @param stringRepresentation <p>The string representation of the paid sign property</p>
+     */
+    PaidSignProperty(String stringRepresentation) {
+        this.stringRepresentation = stringRepresentation;
+    }
+
+    /**
+     * Gets the string representation of this paid sign property
+     *
+     * @return <p>The string representation of this paid sign property</p>
+     */
+    public String getStringRepresentation() {
+        return this.stringRepresentation;
+    }
+
+    /**
+     * Gets the paid sign property matching the given string
+     *
+     * @param propertyString <p>The string representing a paid sign property</p>
+     * @return <p>The matching paid sign property, or null if no such property exists</p>
+     */
+    public static PaidSignProperty getFromString(String propertyString) {
+        for (PaidSignProperty paidSignProperty : PaidSignProperty.values()) {
+            if (paidSignProperty.getStringRepresentation().equalsIgnoreCase(propertyString)) {
+                return paidSignProperty;
+            }
+        }
+        return null;
+    }
+
+}

src/main/java/net/knarcraft/paidsigns/utility/FileHelper.java

@@ -0,0 +1,32 @@
+package net.knarcraft.paidsigns.utility;
+
+import java.io.BufferedReader;
+import java.io.FileNotFoundException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.nio.charset.StandardCharsets;
+
+/**
+ * A helper class for dealing with files
+ */
+public final class FileHelper {
+
+    private FileHelper() {
+
+    }
+
+    /**
+     * Gets a buffered reader for
+     *
+     * @return <p>A buffered read for reading the file</p>
+     * @throws FileNotFoundException <p>If unable to get an input stream for the given file</p>
+     */
+    public static BufferedReader getBufferedReaderForInternalFile(String file) throws FileNotFoundException {
+        InputStream inputStream = FileHelper.class.getResourceAsStream(file);
+        if (inputStream == null) {
+            throw new FileNotFoundException("Unable to read the given file");
+        }
+        return new BufferedReader(new InputStreamReader(inputStream, StandardCharsets.UTF_8));
+    }
+
+}

src/main/java/net/knarcraft/paidsigns/utility/TabCompleteHelper.java

@@ -1,16 +1,24 @@
 package net.knarcraft.paidsigns.utility;
 
 import net.knarcraft.paidsigns.PaidSigns;
+import org.bukkit.Bukkit;
+import org.bukkit.permissions.Permission;
 
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 import java.util.Set;
+import java.util.StringJoiner;
 
 /**
  * A helper class for providing common tab complete options
  */
 public final class TabCompleteHelper {
 
+    private static List<String> plugins;
+    private static Map<String, List<String>> permissions;
+
     private TabCompleteHelper() {
 
     }
@@ -122,4 +130,65 @@ public final class TabCompleteHelper {
         return conditionStrings;
     }
 
+    /**
+     * Gets the tab complete value for the permission typed
+     *
+     * @param typedNode <p>The full permission node typed by the player</p>
+     * @return <p>All known valid auto-complete options</p>
+     */
+    public static List<String> tabCompletePermission(String typedNode) {
+        if (plugins == null) {
+            loadAvailablePermissions();
+        }
+        List<String> output;
+        if (typedNode.contains(".")) {
+            List<String> matchingPermissions = permissions.get(typedNode.substring(0, typedNode.lastIndexOf(".")));
+            if (matchingPermissions == null) {
+                output = new ArrayList<>();
+            } else {
+                //Filter by the typed text
+                output = TabCompleteHelper.filterMatchingStartsWith(matchingPermissions, typedNode);
+            }
+        } else {
+            output = plugins;
+        }
+
+        //Add previous permissions in the comma-separated lists as a prefix
+        return output;
+    }
+
+    /**
+     * Loads all permissions available from bukkit plugins
+     */
+    private static void loadAvailablePermissions() {
+        plugins = new ArrayList<>();
+        permissions = new HashMap<>();
+
+        for (Permission permission : Bukkit.getPluginManager().getPermissions()) {
+            loadPermission(permission.getName());
+        }
+    }
+
+    /**
+     * Loads a given permission into the proper lists and maps
+     *
+     * @param permissionName <p>The permission to load</p>
+     */
+    private static void loadPermission(String permissionName) {
+        String[] permissionParts = permissionName.split("\\.");
+        if (permissionParts.length == 1 && !plugins.contains(permissionParts[0])) {
+            plugins.add(permissionParts[0]);
+        } else if (permissionParts.length > 1) {
+            StringJoiner pathJoiner = new StringJoiner(".");
+            for (int j = 0; j < permissionParts.length - 1; j++) {
+                pathJoiner.add(permissionParts[j]);
+            }
+            String path = pathJoiner.toString();
+            List<String> permissionList = permissions.computeIfAbsent(path, k -> new ArrayList<>());
+            permissionList.add(permissionName);
+
+            loadPermission(path);
+        }
+    }
+
 }

src/main/resources/config.yml

@@ -1,3 +1,6 @@
+# The currently enabled language. More languages can be added to the language file
+language: en
+
 # Whether to ignore the case (lowercase/uppercase) of the paid sign text. The option can be set on a per-sign basis, but
 # this value is used if not specified. The correct value depends on whether the plugin signs it should match are
 # case-sensitive or not.
@@ -10,7 +13,11 @@ ignoreColor: false
 
 # Whether to enable refunds to the sign creator when a sign detected as a paid sign is broken (payment will always go
 # to the original creator)
-enableRefunds: true
+refundsEnabled: true
 
 # The percentage of the paid sign cost to refund (0-100)
 refundPercentage: 100
+
+# Whether to refund when signs that players have paid for are broken by anything. This includes tnt, creepers, pistons
+# and similar
+refundAlways: false

src/main/resources/plugin.yml

@@ -9,26 +9,44 @@ description: Add costs for creating plugin signs
 website: https://git.knarcraft.net/EpicKnarvik97/PaidSigns
 commands:
   addpaidsign:
+    aliases:
+      - aps
     description: Used to add a new paid sign
-    usage: /<command> <name> <cost> [permission] [ignore case] [ignore color]
+    usage: /<command> <name> <cost> [permission] [ignore case] [ignore color] [match any condition]
     permission: paidsigns.manage
   addpaidsigncondition:
+    aliases:
+      - apsc
     description: Used to add a new match condition for a paid sign
     usage: /<command> <name (of a paid sign)> <line number> <string to match> [executeRegEx] [ignoreCase] [ignoreColor]
     permission: paidsigns.manage
   listpaidsigns:
+    aliases:
+      - lps
     description: Lists all previously added paid signs
     usage: /<command> [sign name] [line number]
     permission: paidsigns.manage
+  editpaidsign:
+    aliases:
+      - eps
+    description: Edits a property of a paid sign or a paid sign condition
+    usage: /<command> <sign name> <property>/<line number> [new value]/<property> [new value]
+    permission: paidsigns.manage
   removepaidsigncondition:
+    aliases:
+      - rpsc
     description: Used to remove a match condition from a paid sign
     usage: /<command> <name (of a paid sign)> <line number>
     permission: paidsigns.manage
   removepaidsign:
+    aliases:
+      - rps
     description: Used to remove a paid sign
     usage: /<command> <name (of a paid sign)>
     permission: paidsigns.manage
   reload:
+    aliases:
+      - r
     description: Reloads paid signs from disk
     usage: /<command>
     permision: paidsigns.reload

src/main/resources/strings.yml

@@ -0,0 +1,27 @@
+en:
+  PREFIX: "[PaidSigns]"
+  SUCCESS_ADDED_PAID_SIGN: "&bSuccessfully added new paid sign"
+  SUCCESS_ADDED_PAID_SIGN_CONDITION: "&bSuccessfully added new paid sign condition"
+  SUCCESS_UPDATED_PAID_SIGN: "&bSuccessfully updated the paid sign property"
+  SUCCESS_UPDATED_PAID_SIGN_CONDITION: "&bSuccessfully updated the paid sign condition property"
+  SUCCESS_REMOVED_PAID_SIGN: "&bSuccessfully removed paid sign"
+  SUCCESS_REMOVED_CONDITION: "&bSuccessfully removed paid sign condition"
+  SUCCESS_RELOADED: "&bSuccessfully reloaded configuration"
+  SUCCESS_PAID_FOR_SIGN: "&bYou paid &3{cost} {unit} &bto create the sign"
+  SUCCESS_REFUNDED: "&bYou were refunded &3{cost} {unit} &bfor your broken sign"
+  PAID_SIGNS_INFO: "&f---&3Paid signs&f---{signs}\n&f-----------"
+  PAID_SIGNS_INFO_FORMAT: "\n&f| &3{name}"
+  PAID_SIGN_INFO: "&f---&3Paid sign&f---\n&f| &bName: &3{name}\n&f| &bCost: &3{cost}\n&f| &bPermission: &3{permission}\n&f| &bIgnore case: &3{case}\n&f| &bIgnore color: &3{color}\n&f| &bMatch any condition: &3{any}\n&f| &bSign conditions: &3{conditions}\n&f---------------"
+  PAID_SIGN_INFO_CONDITION_FORMAT: "\n&f|  &b{line}: &3{condition}"
+  PAID_SIGN_CONDITION_INFO: "&f---&3Paid sign condition&f---\n&f| &bPaid sign name: &3{name}\n&f| &bCondition line: &3{line}\n&f| &bMatch string: &3{match}\n&f| &bExecute RegEx: &3{regex}\n&f| &bIgnore case: &3{case}\n&f| &bIgnore color: &3{color}\n&f---------------"
+  BOOLEAN_TRUE: "&2true"
+  BOOLEAN_FALSE: "&4false"
+  ERROR_INVALID_NUMBER: "&bYou provided an invalid number"
+  ERROR_NAME_DUPLICATE: "&bA paid sign with the same name already exists"
+  ERROR_EXCEPTION_OCCURRED: "&bAn exception occurred. Please notify the server administrator or check the server log."
+  ERROR_INVALID_INPUT: "&bInvalid input: {input}"
+  ERROR_PAID_SIGN_NOT_FOUND: "&bNo such paid sign exists"
+  ERROR_NO_SUCH_CONDITION: "&bThe paid sign you specified has no condition for line {line}"
+  ERROR_CANNOT_AFFORD: "&bYou cannot afford to create this sign"
+  ERROR_INVALID_REGULAR_EXPRESSION: "&bThe provided regular expression is invalid"
+  ERROR_PROPERTY_NOT_RECOGNIZED: "&bThe property you tried to change was not recognized"