Added a lot of stuff, added listing the /ah gui w/pagination & a bunch of other stuff

.idea/artifacts/Auction_House_jar.xml

@@ -0,0 +1,8 @@
+<component name="ArtifactManager">
+  <artifact type="jar" name="Auction House:jar">
+    <output-path>$USER_HOME$/Desktop/Plugin Testing/Pepper API/plugins</output-path>
+    <root id="archive" name="Auction House.jar">
+      <element id="module-output" name="Auction House" />
+    </root>
+  </artifact>
+</component>

.idea/libraries/Maven__commons_io_commons_io_2_4.xml

@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: commons-io:commons-io:2.4">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/commons-io/commons-io/2.4/commons-io-2.4.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/commons-io/commons-io/2.4/commons-io-2.4-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/commons-io/commons-io/2.4/commons-io-2.4-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>

.idea/libraries/Maven__javax_persistence_persistence_api_1_0.xml

@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: javax.persistence:persistence-api:1.0">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/javax/persistence/persistence-api/1.0/persistence-api-1.0.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/javax/persistence/persistence-api/1.0/persistence-api-1.0-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/javax/persistence/persistence-api/1.0/persistence-api-1.0-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>

.idea/libraries/Maven__net_milkbowl_vault_VaultAPI_1_6.xml

@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: net.milkbowl.vault:VaultAPI:1.6">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/net/milkbowl/vault/VaultAPI/1.6/VaultAPI-1.6.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/net/milkbowl/vault/VaultAPI/1.6/VaultAPI-1.6-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/net/milkbowl/vault/VaultAPI/1.6/VaultAPI-1.6-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>

.idea/libraries/Maven__org_avaje_ebean_2_8_1.xml

@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: org.avaje:ebean:2.8.1">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/avaje/ebean/2.8.1/ebean-2.8.1.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/org/avaje/ebean/2.8.1/ebean-2.8.1-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/avaje/ebean/2.8.1/ebean-2.8.1-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>

.idea/libraries/Maven__org_bukkit_bukkit_1_9_R0_1_SNAPSHOT.xml

@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: org.bukkit:bukkit:1.9-R0.1-SNAPSHOT">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/bukkit/bukkit/1.9-R0.1-SNAPSHOT/bukkit-1.9-R0.1-20160330.160319-146.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/org/bukkit/bukkit/1.9-R0.1-SNAPSHOT/bukkit-1.9-R0.1-20160330.160319-146-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/bukkit/bukkit/1.9-R0.1-SNAPSHOT/bukkit-1.9-R0.1-20160330.160319-146-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>

Auction House.iml

@@ -31,5 +31,9 @@
     <orderEntry type="library" scope="PROVIDED" name="Maven: org.yaml:snakeyaml:1.19" level="project" />
     <orderEntry type="library" scope="PROVIDED" name="Maven: net.md-5:bungeecord-chat:1.12-SNAPSHOT" level="project" />
     <orderEntry type="library" name="Maven: commons-io:commons-io:2.4" level="project" />
+    <orderEntry type="library" scope="PROVIDED" name="Maven: net.milkbowl.vault:VaultAPI:1.6" level="project" />
+    <orderEntry type="library" scope="PROVIDED" name="Maven: org.bukkit:bukkit:1.9-R0.1-SNAPSHOT" level="project" />
+    <orderEntry type="library" scope="PROVIDED" name="Maven: org.avaje:ebean:2.8.1" level="project" />
+    <orderEntry type="library" scope="PROVIDED" name="Maven: javax.persistence:persistence-api:1.0" level="project" />
   </component>
 </module>

pom.xml

@@ -63,6 +63,10 @@
             <id>sonatype</id>
             <url>https://oss.sonatype.org/content/groups/public/</url>
         </repository>
+        <repository>
+            <id>vault-repo</id>
+            <url>http://nexus.hc.to/content/repositories/pub_releases</url>
+        </repository>
     </repositories>
 
     <dependencies>
@@ -77,5 +81,11 @@
             <artifactId>commons-io</artifactId>
             <version>2.4</version>
         </dependency>
+        <dependency>
+            <groupId>net.milkbowl.vault</groupId>
+            <artifactId>VaultAPI</artifactId>
+            <version>1.6</version>
+            <scope>provided</scope>
+        </dependency>
     </dependencies>
 </project>

src/main/java/com/shadebyte/auctionhouse/Core.java

@@ -1,15 +1,82 @@
 package com.shadebyte.auctionhouse;
 
+import com.massivestats.MassiveStats;
+import com.shadebyte.auctionhouse.auction.AuctionItem;
+import com.shadebyte.auctionhouse.cmds.CommandManager;
+import com.shadebyte.auctionhouse.events.AGUIListener;
+import com.shadebyte.auctionhouse.util.ConfigWrapper;
+import com.shadebyte.auctionhouse.util.Debugger;
+import com.shadebyte.auctionhouse.util.Locale;
+import net.milkbowl.vault.economy.Economy;
+import org.bukkit.Bukkit;
+import org.bukkit.plugin.PluginManager;
+import org.bukkit.plugin.RegisteredServiceProvider;
 import org.bukkit.plugin.java.JavaPlugin;
 
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
 public final class Core extends JavaPlugin {
 
+    //Instance Variable
     private static Core instance;
 
+    //Instance for the command management system
+    private CommandManager commandManager;
+
+    //Economy
+    private static Economy economy = null;
+
+    //Settings
+    private Settings settings = null;
+
+    //Data config instance from the config wrapper
+    private ConfigWrapper data;
+
+    //Language system instance
+    private Locale locale;
+
+    //Storage
+    public List<AuctionItem> auctionItems;
+
     @Override
     public void onEnable() {
         // Plugin startup logic
         instance = this;
+
+        //Locales
+        Locale.init(this);
+        Locale.saveDefaultLocale("en_US");
+        this.locale = Locale.getLocale(this.getConfig().getString("Locale", "en_US"));
+
+        settings = new Settings();
+
+        initDataFiles();
+
+        commandManager = new CommandManager();
+        commandManager.initialize();
+
+        initEvents();
+        initStorage();
+
+        try {
+            MassiveStats stats = new MassiveStats(this);
+            stats.setListenerDisabled(false);
+        } catch (Exception e) {
+            Debugger.report(e);
+        }
+
+        try {
+            Bukkit.getServer().getScheduler().runTaskTimer(this, () -> {
+                auctionItems.forEach(auctionItem -> auctionItem.updateTime(5));
+                auctionItems.forEach(auctionItem -> {
+                    if (auctionItem.getTime() <= 0) auctionItems.remove(auctionItem);
+                });
+            }, 0, 20 * 5);
+        } catch (Exception e) {
+            //Debugger.report(e);
+        }
     }
 
     @Override
@@ -18,7 +85,58 @@ public final class Core extends JavaPlugin {
         instance = null;
     }
 
+    private boolean setupEconomy() {
+        if (getServer().getPluginManager().getPlugin("Vault") == null) {
+            return false;
+        }
+        RegisteredServiceProvider<Economy> rsp = getServer().getServicesManager().getRegistration(Economy.class);
+        if (rsp == null) {
+            return false;
+        }
+        economy = rsp.getProvider();
+        return economy != null;
+    }
+
+    private void initDataFiles() {
+        getConfig().options().copyDefaults(true);
+        saveDefaultConfig();
+        data = new ConfigWrapper(this, "", "data.yml");
+        if (!new File(this.getDataFolder(), "data.yml").exists()) {
+            data.getConfig().createSection("data");
+        }
+        data.saveConfig();
+    }
+
+    private void initEvents() {
+        PluginManager pm = Bukkit.getPluginManager();
+        pm.registerEvents(new AGUIListener(), this);
+    }
+
+    private void initStorage() {
+        auctionItems = new ArrayList<>();
+    }
+
     public static Core getInstance() {
         return instance;
     }
+
+    public CommandManager getCommandManager() {
+        return commandManager;
+    }
+
+    public Locale getLocale() {
+        return locale;
+    }
+
+    public ConfigWrapper getData() {
+        return data;
+    }
+
+    public static Economy getEconomy() {
+        return economy;
+    }
+
+    public Settings getSettings() {
+        return settings;
+    }
 }

src/main/java/com/shadebyte/auctionhouse/Settings.java

@@ -0,0 +1,22 @@
+package com.shadebyte.auctionhouse;
+
+import com.shadebyte.auctionhouse.api.enums.Lang;
+
+/**
+ * The current file has been created by Kiran Hart
+ * Date Created: 7/6/2018
+ * Time Created: 6:46 PM
+ * Usage of any code found within this class is prohibited unless given explicit permission otherwise.
+ */
+public class Settings {
+
+    private String prefix;
+
+    public Settings() {
+        prefix = Core.getInstance().getLocale().getMessage(Lang.PREFIX.getNode()) + " ";
+    }
+
+    public String getPrefix() {
+        return prefix;
+    }
+}

src/main/java/com/shadebyte/auctionhouse/api/AuctionAPI.java

@@ -1,5 +1,17 @@
 package com.shadebyte.auctionhouse.api;
 
+import com.shadebyte.auctionhouse.Core;
+import com.shadebyte.auctionhouse.api.enums.Version;
+import org.bukkit.ChatColor;
+import org.bukkit.Material;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.PlayerInventory;
+import org.bukkit.inventory.meta.ItemMeta;
+
+import java.util.ArrayList;
+import java.util.List;
+
 /**
  * The current file has been created by Kiran Hart
  * Date Created: 7/6/2018
@@ -7,4 +19,71 @@ package com.shadebyte.auctionhouse.api;
  * Usage of any code found within this class is prohibited unless given explicit permission otherwise.
  */
 public class AuctionAPI {
+
+    private static AuctionAPI instance;
+
+    private AuctionAPI() {
+    }
+
+    public static AuctionAPI getInstance() {
+        if (instance == null) {
+            instance = new AuctionAPI();
+        }
+        return instance;
+    }
+
+    public ItemStack createConfigItem(String node) {
+        String[] rawItem = Core.getInstance().getConfig().getString(node + ".item").split(":");
+        ItemStack stack = new ItemStack(Material.valueOf(rawItem[0].toUpperCase()), 1, Short.parseShort(rawItem[1]));
+        ItemMeta meta = stack.getItemMeta();
+        meta.setDisplayName(ChatColor.translateAlternateColorCodes('&', Core.getInstance().getConfig().getString(node + ".name")));
+        List<String> lore = new ArrayList<>();
+        Core.getInstance().getConfig().getStringList(node + ".lore").forEach(s -> lore.add(ChatColor.translateAlternateColorCodes('&', s)));
+        meta.setLore(lore);
+        stack.setItemMeta(meta);
+        return stack;
+    }
+
+    public int availableSlots(PlayerInventory inventory) {
+        int count = 0;
+        for (ItemStack i : inventory) {
+            if (i == null) {
+                count++;
+            }
+        }
+        return count;
+    }
+
+    @SuppressWarnings("deprecation")
+    public static ItemStack getItemInHand(Player player) {
+        if (Version.getCurrentVersion().getCurrentVersionInteger() >= Version.v1_9_R1.getCurrentVersionInteger()) {
+            return player.getInventory().getItemInMainHand();
+        } else {
+            return player.getItemInHand();
+        }
+    }
+
+    @SuppressWarnings("deprecation")
+    public static void setItemInHand(Player player, ItemStack item) {
+        if (Version.getCurrentVersion().getCurrentVersionInteger() >= Version.v1_9_R1.getCurrentVersionInteger()) {
+            player.getInventory().setItemInMainHand(item);
+        } else {
+            player.setItemInHand(item);
+        }
+    }
+
+    public String timeLeft(int totalSecs) {
+        int hours = totalSecs / 3600;
+        int minutes = (totalSecs % 3600) / 60;
+        int seconds = totalSecs % 60;
+        return String.format("%02d:%02d:%02d", hours, minutes, seconds);
+    }
+
+    public ItemStack fill(String name) {
+        ItemStack stack = new ItemStack(Material.STAINED_GLASS_PANE, 1, (short) 1);
+        ItemMeta meta = stack.getItemMeta();
+        meta.setDisplayName(ChatColor.translateAlternateColorCodes('&', "&6&l" + name));
+        stack.setItemMeta(meta);
+        return stack;
+    }
 }

src/main/java/com/shadebyte/auctionhouse/api/enums/Lang.java

@@ -7,4 +7,23 @@ package com.shadebyte.auctionhouse.api.enums;
  * Usage of any code found within this class is prohibited unless given explicit permission otherwise.
  */
 public enum Lang {
+
+    PREFIX("prefix"),
+    NO_PERMISSION("nopermission"),
+    PLAYERS_ONLY("playersonly"),
+
+    INVALID_SUBCOMMAND("cmd.invalid"),
+    CMD_SELL("cmd.sell"),
+
+    ;
+
+    String node;
+
+    Lang(String node) {
+        this.node = node;
+    }
+
+    public String getNode() {
+        return node;
+    }
 }

src/main/java/com/shadebyte/auctionhouse/api/enums/Permissions.java

@@ -8,7 +8,9 @@ package com.shadebyte.auctionhouse.api.enums;
  */
 public enum Permissions {
 
-    BASE("AuctionHouse");
+    BASE("AuctionHouse"),
+    MAX_AUCTIONS(BASE.getNode() + ".maxauctions"),
+    ;
 
     private String node;
 

src/main/java/com/shadebyte/auctionhouse/auction/AuctionItem.java

@@ -1,5 +1,18 @@
 package com.shadebyte.auctionhouse.auction;
 
+import com.shadebyte.auctionhouse.api.AuctionAPI;
+import com.shadebyte.auctionhouse.util.NBTEditor;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+
+import java.text.NumberFormat;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+import static org.bukkit.ChatColor.translateAlternateColorCodes;
+
 /**
  * The current file has been created by Kiran Hart
  * Date Created: 7/6/2018
@@ -7,4 +20,135 @@ package com.shadebyte.auctionhouse.auction;
  * Usage of any code found within this class is prohibited unless given explicit permission otherwise.
  */
 public class AuctionItem {
+
+    private Player owner;
+    private ItemStack item;
+    private int startPrice;
+    private int bidIncrement;
+    private int buyNowPrice;
+    private int currentPrice;
+    private int time = 0;
+    private String key;
+
+    public AuctionItem(ItemStack item, int time, int startPrice, int bidIncrement, int buyNowPrice) {
+        this.owner = null;
+        this.item = item.clone();
+        this.startPrice = startPrice;
+        this.bidIncrement = bidIncrement;
+        this.bidIncrement = bidIncrement;
+        this.buyNowPrice = buyNowPrice;
+        this.time = time;
+        key = UUID.randomUUID().toString();
+    }
+
+    public AuctionItem(Player owner, ItemStack item, int time, int startPrice, int bidIncrement, int buyNowPrice) {
+        this.owner = owner;
+        this.item = item.clone();
+        this.startPrice = startPrice;
+        this.bidIncrement = bidIncrement;
+        this.bidIncrement = bidIncrement;
+        this.buyNowPrice = buyNowPrice;
+        this.time = time;
+        this.currentPrice = startPrice;
+        key = UUID.randomUUID().toString();
+    }
+
+    public Player getOwner() {
+        return owner;
+    }
+
+    public void setOwner(Player owner) {
+        this.owner = owner;
+    }
+
+    public ItemStack getItem() {
+        return item;
+    }
+
+    public void setItem(ItemStack item) {
+        this.item = item;
+    }
+
+    public int getStartPrice() {
+        return startPrice;
+    }
+
+    public void setStartPrice(int startPrice) {
+        this.startPrice = startPrice;
+    }
+
+    public int getBidIncrement() {
+        return bidIncrement;
+    }
+
+    public void setBidIncrement(int bidIncrement) {
+        this.bidIncrement = bidIncrement;
+    }
+
+    public int getBuyNowPrice() {
+        return buyNowPrice;
+    }
+
+    public void setBuyNowPrice(int buyNowPrice) {
+        this.buyNowPrice = buyNowPrice;
+    }
+
+    public int getCurrentPrice() {
+        return currentPrice;
+    }
+
+    public void setCurrentPrice(int currentPrice) {
+        this.currentPrice = currentPrice;
+    }
+
+    public int getTime() {
+        return time;
+    }
+
+    public void setTime(int time) {
+        this.time = time;
+    }
+
+    public String getKey() {
+        return key;
+    }
+
+    public void updateTime(int removeAmount) {
+        if (time - removeAmount <= 0) {
+            time = 0;
+        } else {
+            time = time - removeAmount;
+        }
+    }
+
+    public ItemStack auctionStack() {
+        ItemStack stack = item.clone();
+        stack.setAmount((stack.getAmount() > 1) ? stack.getAmount() : 1);
+        ItemMeta meta = stack.getItemMeta();
+        List<String> lore = null;
+        if (meta.hasLore()) {
+            lore = meta.getLore();
+        } else {
+            lore = new ArrayList<>();
+        }
+        lore.add(translateAlternateColorCodes('&', "&7-------------------------"));
+        if (owner == null)
+            lore.add(translateAlternateColorCodes('&', "&eSeller&f: &bSample User"));
+        else
+            lore.add(translateAlternateColorCodes('&', "&eSeller&f: &b" + owner.getName()));
+        lore.add(translateAlternateColorCodes('&', ""));
+        lore.add(translateAlternateColorCodes('&', "&eBuy Now: &a$" + NumberFormat.getInstance().format(buyNowPrice)));
+        lore.add(translateAlternateColorCodes('&', "&eCurrent Price: &a$" + NumberFormat.getInstance().format(currentPrice)));
+        lore.add(translateAlternateColorCodes('&', "&eBid Increment: &a$" + NumberFormat.getInstance().format(bidIncrement)));
+        lore.add(translateAlternateColorCodes('&', ""));
+        lore.add(translateAlternateColorCodes('&', "&eTime Left: &b" + AuctionAPI.getInstance().timeLeft(getTime())));
+        lore.add(translateAlternateColorCodes('&', "&7-------------------------"));
+        lore.add(translateAlternateColorCodes('&', "&eLeft-Click&f: &bBid"));
+        lore.add(translateAlternateColorCodes('&', "&eRight-Click&f: &bBuy Now"));
+        lore.add(translateAlternateColorCodes('&', "&7-------------------------"));
+        meta.setLore(lore);
+        stack.setItemMeta(meta);
+        stack = NBTEditor.setItemTag(stack, getKey(), "AuctionItemKey");
+        return stack;
+    }
 }

src/main/java/com/shadebyte/auctionhouse/auction/AuctionPlayer.java

@@ -1,5 +1,12 @@
 package com.shadebyte.auctionhouse.auction;
 
+import com.shadebyte.auctionhouse.Core;
+import com.shadebyte.auctionhouse.api.enums.Permissions;
+import org.bukkit.entity.Player;
+
+import java.util.ArrayList;
+import java.util.List;
+
 /**
  * The current file has been created by Kiran Hart
  * Date Created: 7/6/2018
@@ -7,4 +14,41 @@ package com.shadebyte.auctionhouse.auction;
  * Usage of any code found within this class is prohibited unless given explicit permission otherwise.
  */
 public class AuctionPlayer {
+
+    private Player player;
+
+    public AuctionPlayer(Player player) {
+        this.player = player;
+    }
+
+    public int getTotalActiveAuctions() {
+        int total = 0;
+        for (AuctionItem item : Core.getInstance().auctionItems) {
+            if (item.getOwner().getUniqueId().equals(player.getUniqueId())) {
+                total++;
+            }
+        }
+        return total;
+    }
+
+    public List<AuctionItem> getAuctionItems() {
+        List<AuctionItem> list = new ArrayList<>();
+        for (AuctionItem item : Core.getInstance().auctionItems) {
+            if (item.getOwner().getUniqueId().equals(player.getUniqueId())) {
+                list.add(item);
+            }
+        }
+        return list;
+    }
+
+    public boolean hasMaximumAuctionsActive() {
+        if (!player.hasPermission(Permissions.MAX_AUCTIONS.getNode() + "." + getTotalActiveAuctions())) {
+            return true;
+        }
+        return false;
+    }
+
+    public Player getPlayer() {
+        return player;
+    }
 }

src/main/java/com/shadebyte/auctionhouse/cmds/CommandManager.java

@@ -1,11 +1,15 @@
 package com.shadebyte.auctionhouse.cmds;
 
 import com.shadebyte.auctionhouse.Core;
+import com.shadebyte.auctionhouse.api.enums.Lang;
 import com.shadebyte.auctionhouse.api.enums.Permissions;
+import com.shadebyte.auctionhouse.cmds.subcmds.SellCommand;
+import com.shadebyte.auctionhouse.inventory.inventories.AuctionGUI;
 import com.shadebyte.auctionhouse.util.Debugger;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
 
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -35,20 +39,24 @@ public class CommandManager implements CommandExecutor {
 
     public void initialize() {
         Core.getInstance().getCommand(main).setExecutor(this);
+        this.commands.add(new SellCommand());
     }
 
     @Override
     public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
 
         if (!sender.hasPermission(Permissions.BASE.getNode())) {
-            //sender.sendMessage(Core.getInstance().getSettings().getPrefix() + Core.getInstance().getLocale().getMessage(Lang.NO_PERMISSION.getNode()));
+            sender.sendMessage(Core.getInstance().getSettings().getPrefix() + Core.getInstance().getLocale().getMessage(Lang.NO_PERMISSION.getNode()));
             return true;
         }
 
         //Main command text
         if (command.getName().equalsIgnoreCase(main)) {
             if (args.length == 0) {
-                //OPEN
+                if (sender instanceof Player) {
+                    Player p = (Player) sender;
+                    p.openInventory(AuctionGUI.getInstance(p).getInventory());
+                }
                 return true;
             }
 
@@ -56,7 +64,7 @@ public class CommandManager implements CommandExecutor {
             SubCommand target = this.getSubcommand(args[0]);
 
             if (target == null) {
-                //sender.sendMessage(Core.getInstance().getSettings().getPrefix() + Core.getInstance().getLocale().getMessage(Lang.INVALID_SUBCOMMAND.getNode()));
+                sender.sendMessage(Core.getInstance().getSettings().getPrefix() + Core.getInstance().getLocale().getMessage(Lang.INVALID_SUBCOMMAND.getNode()));
                 return true;
             }
 

src/main/java/com/shadebyte/auctionhouse/cmds/subcmds/SellCommand.java

@@ -1,10 +1,62 @@
 package com.shadebyte.auctionhouse.cmds.subcmds;
 
+import com.shadebyte.auctionhouse.Core;
+import com.shadebyte.auctionhouse.api.AuctionAPI;
+import com.shadebyte.auctionhouse.api.enums.Lang;
+import com.shadebyte.auctionhouse.api.enums.Permissions;
+import com.shadebyte.auctionhouse.auction.AuctionItem;
+import com.shadebyte.auctionhouse.cmds.SubCommand;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
 /**
  * The current file has been created by Kiran Hart
  * Date Created: 7/6/2018
  * Time Created: 11:50 AM
  * Usage of any code found within this class is prohibited unless given explicit permission otherwise.
  */
-public class SellCommand {
+public class SellCommand extends SubCommand {
+
+    @Override
+    public void onCommand(CommandSender sender, String[] args) {
+
+        if (!sender.hasPermission(Permissions.BASE.getNode())) {
+            sender.sendMessage(Core.getInstance().getSettings().getPrefix() + Core.getInstance().getLocale().getMessage(Lang.NO_PERMISSION.getNode()));
+            return;
+        }
+
+        if (!(sender instanceof Player)) {
+            sender.sendMessage(Core.getInstance().getSettings().getPrefix() + Core.getInstance().getLocale().getMessage(Lang.PLAYERS_ONLY.getNode()));
+            return;
+        }
+
+        Player p = (Player) sender;
+
+        if (args.length == 1) {
+            p.sendMessage(Core.getInstance().getSettings().getPrefix() + Core.getInstance().getLocale().getMessage(Lang.CMD_SELL.getNode()));
+            return;
+        }
+
+        if (args.length == 4) {
+            int buyNow = Integer.parseInt(args[1]);
+            int startPrice = Integer.parseInt(args[2]);
+            int increment = Integer.parseInt(args[3]);
+            Core.getInstance().auctionItems.add(0, new AuctionItem(p, AuctionAPI.getItemInHand(p), 3600, startPrice, increment, buyNow));
+        }
+    }
+
+    @Override
+    public String name() {
+        return Core.getInstance().getCommandManager().sell;
+    }
+
+    @Override
+    public String info() {
+        return null;
+    }
+
+    @Override
+    public String[] aliases() {
+        return new String[0];
+    }
 }

src/main/java/com/shadebyte/auctionhouse/events/AGUIListener.java

@@ -0,0 +1,32 @@
+package com.shadebyte.auctionhouse.events;
+
+import com.shadebyte.auctionhouse.inventory.AGUI;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.inventory.InventoryClickEvent;
+import org.bukkit.event.inventory.InventoryCloseEvent;
+
+/**
+ * The current file has been created by Kiran Hart
+ * Date Created: 7/6/2018
+ * Time Created: 4:03 PM
+ * Usage of any code found within this class is prohibited unless given explicit permission otherwise.
+ */
+public class AGUIListener implements Listener {
+
+    @EventHandler
+    public void onClick(InventoryClickEvent e) {
+        if (e.getInventory().getHolder() instanceof AGUI) {
+            AGUI gui = (AGUI) e.getInventory().getHolder();
+            gui.click(e, e.getCurrentItem(), e.getRawSlot());
+        }
+    }
+
+    @EventHandler
+    public void onClose(InventoryCloseEvent e) {
+        if (e.getInventory().getHolder() instanceof AGUI) {
+            AGUI gui = (AGUI) e.getInventory().getHolder();
+            gui.close(e);
+        }
+    }
+}

src/main/java/com/shadebyte/auctionhouse/inventory/AGUI.java

@@ -1,11 +1,19 @@
 package com.shadebyte.auctionhouse.inventory;
 
+import org.bukkit.event.inventory.InventoryClickEvent;
+import org.bukkit.event.inventory.InventoryCloseEvent;
+import org.bukkit.inventory.InventoryHolder;
+import org.bukkit.inventory.ItemStack;
+
 /**
  * The current file has been created by Kiran Hart
  * Date Created: 7/6/2018
  * Time Created: 11:54 AM
  * Usage of any code found within this class is prohibited unless given explicit permission otherwise.
  */
-public interface AGUI {
+public interface AGUI extends InventoryHolder {
 
-}
+    void click(InventoryClickEvent e, ItemStack clicked, int slot);
+
+    void close(InventoryCloseEvent e);
+}

src/main/java/com/shadebyte/auctionhouse/inventory/inventories/AuctionGUI.java

@@ -1,10 +1,133 @@
 package com.shadebyte.auctionhouse.inventory.inventories;
 
+import com.google.common.collect.Lists;
+import com.shadebyte.auctionhouse.Core;
+import com.shadebyte.auctionhouse.api.AuctionAPI;
+import com.shadebyte.auctionhouse.auction.AuctionItem;
+import com.shadebyte.auctionhouse.inventory.AGUI;
+import com.shadebyte.auctionhouse.util.NBTEditor;
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
+import org.bukkit.Material;
+import org.bukkit.entity.Player;
+import org.bukkit.event.inventory.ClickType;
+import org.bukkit.event.inventory.InventoryClickEvent;
+import org.bukkit.event.inventory.InventoryCloseEvent;
+import org.bukkit.inventory.Inventory;
+import org.bukkit.inventory.ItemStack;
+
+import java.util.List;
+
 /**
  * The current file has been created by Kiran Hart
  * Date Created: 7/6/2018
  * Time Created: 11:56 AM
  * Usage of any code found within this class is prohibited unless given explicit permission otherwise.
  */
-public class AuctionGUI {
+public class AuctionGUI implements AGUI {
+
+    private static AuctionGUI instance;
+    private Player p;
+
+    private AuctionGUI(Player p) {
+        this.p = p;
+    }
+
+    public static AuctionGUI getInstance(Player p) {
+        if (instance == null) {
+            instance = new AuctionGUI(p);
+        }
+        return instance;
+    }
+
+    private int page = 1;
+
+
+    @Override
+    public void click(InventoryClickEvent e, ItemStack clicked, int slot) {
+        e.setCancelled(true);
+        Player p = (Player) e.getWhoClicked();
+
+
+        if (page >= 1 && slot == 48) p.openInventory(this.setPage(this.getPage() - 1).getInventory());
+        if (page >= 1 && slot == 50) p.openInventory(this.setPage(this.getPage() + 1).getInventory());
+
+
+        if (slot == 49) {
+            p.closeInventory();
+            p.openInventory(AuctionGUI.getInstance(p).getInventory());
+        }
+
+        if (slot >= 0 & slot <= 44) {
+            if (clicked == null || clicked.getType() == Material.AIR) {
+                return;
+            }
+
+            AuctionItem item = null;
+
+            if (e.getClick() == ClickType.LEFT) {
+                String key = (String) NBTEditor.getItemTag(clicked, "AuctionItemKey");
+                for (AuctionItem auctionItem : Core.getInstance().auctionItems) {
+                    if (auctionItem.getKey().equalsIgnoreCase(key)) item = auctionItem;
+                }
+
+                item.setCurrentPrice(item.getCurrentPrice() + item.getBidIncrement());
+                p.closeInventory();
+                p.openInventory(AuctionGUI.getInstance(p).getInventory());
+            }
+
+            if (e.getClick() == ClickType.RIGHT) {
+                String key = (String) NBTEditor.getItemTag(clicked, "AuctionItemKey");
+                for (AuctionItem auctionItem : Core.getInstance().auctionItems) {
+                    if (auctionItem.getKey().equalsIgnoreCase(key)) item = auctionItem;
+                }
+
+                p.getInventory().addItem(item.getItem());
+                item.setTime(0);
+                Core.getInstance().auctionItems.remove(item);
+
+                p.closeInventory();
+                p.openInventory(AuctionGUI.getInstance(p).getInventory());
+            }
+        }
+    }
+
+    @Override
+    public void close(InventoryCloseEvent e) {
+
+    }
+
+    @Override
+    public Inventory getInventory() {
+        Inventory inventory = Bukkit.createInventory(this, 54, ChatColor.translateAlternateColorCodes('&', Core.getInstance().getConfig().getString("gui.auction.title")));
+
+        //Bottom Row
+        inventory.setItem(45, AuctionAPI.getInstance().createConfigItem("gui.auction.items.yourauctions"));
+        inventory.setItem(46, AuctionAPI.getInstance().createConfigItem("gui.auction.items.collectionbin"));
+        inventory.setItem(48, AuctionAPI.getInstance().createConfigItem("gui.auction.items.previouspage"));
+        inventory.setItem(49, AuctionAPI.getInstance().createConfigItem("gui.auction.items.refresh"));
+        inventory.setItem(50, AuctionAPI.getInstance().createConfigItem("gui.auction.items.nextpage"));
+        inventory.setItem(52, AuctionAPI.getInstance().createConfigItem("gui.auction.items.howtosell"));
+        inventory.setItem(53, AuctionAPI.getInstance().createConfigItem("gui.auction.items.guide"));
+
+        //Pagination
+        List<List<AuctionItem>> chunks = Lists.partition(Core.getInstance().auctionItems, 45);
+
+        if (chunks.size() != 0)
+            chunks.get(getPage() - 1).forEach(item -> inventory.setItem(inventory.firstEmpty(), item.auctionStack()));
+
+        return inventory;
+    }
+
+    public AuctionGUI setPage(int page) {
+        if (page <= 0)
+            this.page = 1;
+        else
+            this.page = page;
+        return this;
+    }
+
+    public int getPage() {
+        return page;
+    }
 }

src/main/resources/config.yml

@@ -0,0 +1,67 @@
+gui:
+  auction:
+    title: "&7Auction House"
+    items:
+      guide:
+        item: "BOOK:0"
+        name: "&e&lGuide"
+        lore:
+          - "&7This is the auction house, here you can"
+          - "&7list items for sale and purchase items"
+          - "&7that others have listed for sale."
+          - ""
+          - "&7The auction is also a great way to make"
+          - "&7money by selling farmable items other"
+          - "&7players may be interested in buying."
+          - ""
+          - "&7All sell listings last for a max of &e60 minutes"
+          - "&7unsold items are sent to your collection bin."
+          - ""
+          - "&7Each item is listed as a auction, so"
+          - "&7players can out bid each other, or simply"
+          - "&7purchase it right away with a set price."
+          - ""
+          - "&7For more help, use &e/ah help!"
+      howtosell:
+        item: "GOLD_INGOT:0"
+        name: "&e&lHow to Sell"
+        lore:
+          - "&7To list an item on the auction house, just hold"
+          - "&7the item in your hand and type the following command."
+          - "&e/ah sell <buyNowPrice> <startPrice> <bidIncrement>"
+      yourauctions:
+        item: "DIAMOND:0"
+        name: "&e&lYour Auctions"
+        lore:
+          - "&7Click here to view all of the items you"
+          - "&7are currently selling on the auction."
+          - ""
+          - "&e&l{active_player_auctions} Item(s)"
+      collectionbin:
+        item: "ENDER_CHEST:0"
+        name: "&e&lCollection Bin"
+        lore:
+          - "&7Click here to view and collect all of the"
+          - "&7items you have cancelled or have expired."
+          - ""
+          - "&e&l{expired_player_auctions} Item(s)"
+      previouspage:
+        item: "PAPER:0"
+        name: "&E&L<- Previous Page"
+        lore:
+          - "&7View the previous page of auctions."
+      nextpage:
+        item: "PAPER:0"
+        name: "&e&lNext Page ->"
+        lore:
+          - "&7View the next page of auctions."
+      refresh:
+        item: "CHEST:0"
+        name: "&6&lRefresh Auctions"
+        lore:
+          - "&7Click to refresh the currently"
+          - "&7available auction listings."
+
+
+
+

src/main/resources/en_US.lang

@@ -0,0 +1,7 @@
+prefix = "&8[eAuctionHouse&8]"
+
+cmd.invalid = "&cThat isn't a valid subcommand!"
+cmd.sell = "&e/ah sell <buyNowPrice> <startPrice> <bidIncrement>"
+
+nopermission = "&cYou do not have permission to do that!"
+playersonly = "&cOnly player's may use the command!"

src/main/resources/plugin.yml

@@ -4,3 +4,8 @@ main: com.shadebyte.auctionhouse.Core
 authors: [TheCrystalStar]
 description: A premium auction house plugin
 website: https://www.shadebyte.com
+
+commands:
+  auctionhouse:
+    description: Main command for the plugin
+    aliases: [ah, auchouse]