basics for shop, and stuff on join

src/main/java/me/totalfreedom/totalfreedommod/shop/Shop.java

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+package me.totalfreedom.totalfreedommod.shop;
+
+import com.google.common.collect.Maps;
+import java.io.File;
+import java.util.Collection;
+import java.util.Map;
+import lombok.Getter;
+import me.totalfreedom.totalfreedommod.FreedomService;
+import me.totalfreedom.totalfreedommod.TotalFreedomMod;
+import me.totalfreedom.totalfreedommod.config.ConfigEntry;
+import me.totalfreedom.totalfreedommod.util.FLog;
+import me.totalfreedom.totalfreedommod.util.FUtil;
+import net.pravian.aero.config.YamlConfig;
+import net.pravian.aero.util.Ips;
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.player.PlayerQuitEvent;
+
+public class Shop extends FreedomService
+{
+    @Getter
+    public final Map<String, ShopData> dataMap = Maps.newHashMap(); // ip,dataMap
+    @Getter
+    private final File configFolder;
+
+    public Shop(TotalFreedomMod plugin)
+    {
+        super(plugin);
+
+        this.configFolder = new File(plugin.getDataFolder(), "shopdata");
+    }
+
+    @Override
+    protected void onStart()
+    {
+        dataMap.clear();
+    }
+
+    @Override
+    protected void onStop()
+    {
+        for (ShopData sd : dataMap.values())
+        {
+            save(sd);
+        }
+    }
+    
+    public void save(ShopData data)
+    {
+        YamlConfig config = getConfig(data);
+        data.saveTo(config);
+        config.save();
+    }
+
+    public String getIp(OfflinePlayer player)
+    {
+        if (player.isOnline())
+        {
+            return Ips.getIp(player.getPlayer());
+        }
+
+        final ShopData entry = getData(player.getName());
+
+        return (entry == null ? null : entry.getIps().iterator().next());
+    }
+    
+    public String getShopPrefix()
+    {
+        return FUtil.colorize(ConfigEntry.SHOP_PREFIX.getString() + " ");
+    }
+
+    // May not return null
+    public ShopData getData(Player player)
+    {
+        // Check already loaded
+        ShopData data = dataMap.get(Ips.getIp(player));
+        if (data != null)
+        {
+            return data;
+        }
+
+        // Load data
+        data = getData(player.getName());
+
+        // Create data if nonexistent
+        if (data == null)
+        {
+            FLog.info("Creating new shop data entry for " + player.getName());
+
+            // Create new player
+            final long unix = FUtil.getUnixTime();
+            data = new ShopData(player);
+            data.addIp(Ips.getIp(player));
+            
+            // Set defaults
+            data.setCoins(0);
+
+            // Store player
+            dataMap.put(player.getName().toLowerCase(), data);
+
+            // Save player
+            YamlConfig config = getConfig(data);
+            data.saveTo(config);
+            config.save();
+        }
+
+        return data;
+    }
+
+    // May return null
+    public ShopData getData(String username)
+    {
+        username = username.toLowerCase();
+
+        // Check if the player is a known player
+        final File configFile = getConfigFile(username);
+        if (!configFile.exists())
+        {
+            return null;
+        }
+
+        // Create and load entry
+        final ShopData data = new ShopData(username);
+        data.loadFrom(getConfig(data));
+
+        if (!data.isValid())
+        {
+            FLog.warning("Could not load shop data entry: " + username + ". Entry is not valid!");
+            configFile.delete();
+            return null;
+        }
+
+        // Only store data if the player is online
+        for (String ip : data.getIps())
+        {
+            for (Player onlinePlayer : Bukkit.getOnlinePlayers())
+            {
+                if (Ips.getIp(onlinePlayer).equals(ip))
+                {
+                    dataMap.put(ip, data);
+                    return data;
+                }
+            }
+        }
+
+        return data;
+    }
+
+    @EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)
+    public void onPlayerQuit(PlayerQuitEvent event)
+    {
+        final String ip = Ips.getIp(event.getPlayer());
+        dataMap.remove(ip);
+    }
+
+    public Collection<ShopData> getLoadedData()
+    {
+        return dataMap.values();
+    }
+
+    protected File getConfigFile(String name)
+    {
+        return new File(getConfigFolder(), name + ".yml");
+    }
+
+    protected YamlConfig getConfig(ShopData data)
+    {
+        final YamlConfig config = new YamlConfig(plugin, getConfigFile(data.getUsername().toLowerCase()), false);
+        config.load();
+        return config;
+    }
+}

src/main/java/me/totalfreedom/totalfreedommod/shop/ShopData.java

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+package me.totalfreedom.totalfreedommod.shop;
+
+import com.google.common.collect.Lists;
+import java.util.Collections;
+import java.util.List;
+import lombok.Getter;
+import lombok.Setter;
+import net.pravian.aero.base.ConfigLoadable;
+import net.pravian.aero.base.ConfigSavable;
+import net.pravian.aero.base.Validatable;
+import org.apache.commons.lang3.Validate;
+import org.bukkit.configuration.ConfigurationSection;
+import org.bukkit.entity.Player;
+
+public class ShopData implements ConfigLoadable, ConfigSavable, Validatable
+{
+
+    @Getter
+    @Setter
+    private String username;
+    private final List<String> ips = Lists.newArrayList();
+    @Getter
+    @Setter
+    private int coins;
+
+    public ShopData(Player player)
+    {
+        this(player.getName());
+    }
+
+    public ShopData(String username)
+    {
+        this.username = username;
+    }
+
+    @Override
+    public void loadFrom(ConfigurationSection cs)
+    {
+        this.username = cs.getString("username", username);
+        this.ips.clear();
+        this.ips.addAll(cs.getStringList("ips"));
+        this.coins = cs.getInt("coins", coins);
+    }
+
+    @Override
+    public void saveTo(ConfigurationSection cs)
+    {
+        Validate.isTrue(isValid(), "Could not save shop entry: " + username + ". Entry not valid!");
+        cs.set("username", username);
+        cs.set("ips", ips);
+        cs.set("coins", coins);
+    }
+
+    public List<String> getIps()
+    {
+        return Collections.unmodifiableList(ips);
+    }
+
+    // IP utils
+    public boolean addIp(String ip)
+    {
+        return ips.contains(ip) ? false : ips.add(ip);
+    }
+
+    public boolean removeIp(String ip)
+    {
+        return ips.remove(ip);
+    }
+    
+
+    @Override
+    public boolean isValid()
+    {
+        return username != null
+                && !ips.isEmpty();
+    }
+}