Adding universal config API and adding allowed/blocked country config

Bukkit/src/main/java/dev/brighten/antivpn/bukkit/BukkitConfig.java

@@ -23,6 +23,8 @@ public class BukkitConfig implements VPNConfig {
                     "database.username", BukkitPlugin.pluginInstance),
             defaultPassword = new ConfigDefault<>("password",
                     "database.password", BukkitPlugin.pluginInstance),
+
+
             defaultIp = new ConfigDefault<>("localhost", "database.ip", BukkitPlugin.pluginInstance),
             defaultAlertMsg = new ConfigDefault<>("&8[&6KauriVPN&8] &e%player% &7has joined on a VPN/proxy" +
                     " &8(&f%reason%&8) &7in location &8(&f%city%&7, &f%country%&8)", "alerts.message",
@@ -43,10 +45,14 @@ public class BukkitConfig implements VPNConfig {
     private final ConfigDefault<List<String>> prefixWhitelistsDefault = new ConfigDefault<>(new ArrayList<>(),
             "prefixWhitelists", BukkitPlugin.pluginInstance), defaultCommands = new ConfigDefault<>(
             Collections.singletonList("kick %player% VPNs are not allowed on our server!"), "commands.execute",
+            BukkitPlugin.pluginInstance),
+            defBlockedCountries = new ConfigDefault<>(new ArrayList<>(), "blockedCountries",
+                    BukkitPlugin.pluginInstance),
+            defAllowedCountries = new ConfigDefault<>(new ArrayList<>(), "allowedCountries",
             BukkitPlugin.pluginInstance);
 
     private String license, kickMessage, databaseType, databaseName, mongoURL, username, password, ip, alertMsg;
-    private List<String> prefixWhitelists, commands;
+    private List<String> prefixWhitelists, commands, allowedCountries, blockedCountries;
     private int port;
     private boolean cacheResults, databaseEnabled, useCredentials, commandsEnabled, kickPlayers, alertToStaff, metrics;
 
@@ -135,6 +141,16 @@ public class BukkitConfig implements VPNConfig {
         return ip;
     }
 
+    @Override
+    public List<String> allowedCountries() {
+        return allowedCountries;
+    }
+
+    @Override
+    public List<String> blockedCountries() {
+        return blockedCountries;
+    }
+
     @Override
     public int getPort() {
         if(port == -1) {
@@ -177,5 +193,7 @@ public class BukkitConfig implements VPNConfig {
         alertToStaff = defaultAlertToStaff.get();
         alertMsg = defaultAlertMsg.get();
         metrics = defaultMetrics.get();
+        blockedCountries = defBlockedCountries.get();
+        allowedCountries = defAllowedCountries.get();
     }
 }

Bukkit/src/main/java/dev/brighten/antivpn/bukkit/BukkitPlugin.java

@@ -3,6 +3,8 @@ package dev.brighten.antivpn.bukkit;
 import dev.brighten.antivpn.AntiVPN;
 import dev.brighten.antivpn.bukkit.util.ConfigDefault;
 import dev.brighten.antivpn.command.Command;
+import dev.brighten.antivpn.utils.MiscUtils;
+import dev.brighten.antivpn.utils.config.Configuration;
 import lombok.val;
 import net.md_5.bungee.api.ChatColor;
 import org.bstats.bukkit.Metrics;
@@ -16,6 +18,7 @@ import org.bukkit.plugin.SimplePluginManager;
 import org.bukkit.plugin.java.JavaPlugin;
 import org.bukkit.scheduler.BukkitRunnable;
 
+import java.io.File;
 import java.lang.reflect.Field;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -35,7 +38,12 @@ public class BukkitPlugin extends JavaPlugin {
 
         //Loading config
         Bukkit.getLogger().info("Loading config...");
-        saveDefaultConfig();
+        Configuration config = new Configuration();
+        File configFile = new File(getDataFolder(), "config.yml");
+        if(!configFile.exists()){
+            configFile.getParentFile().mkdirs();
+            MiscUtils.copy(getResource( "config.yml"), configFile);
+        }
 
         Bukkit.getLogger().info("Starting AntiVPN services...");
         AntiVPN.start(new BukkitConfig(), new BukkitListener(), new BukkitPlayerExecutor(), getDataFolder());

Bukkit/src/main/java/dev/brighten/antivpn/bukkit/util/ConfigDefault.java

@@ -1,8 +1,12 @@
 package dev.brighten.antivpn.bukkit.util;
 
+import dev.brighten.antivpn.utils.MiscUtils;
+import dev.brighten.antivpn.utils.config.Configuration;
 import lombok.AllArgsConstructor;
 import org.bukkit.plugin.Plugin;
 
+import java.io.File;
+
 @AllArgsConstructor
 public class ConfigDefault<A> {