update to paper 1.18.2 and switch to gradle + fix up command sender to handle perms

src/main/java/me/totalfreedom/bukkittelnet/TelnetConfigLoader.java

@@ -0,0 +1,117 @@
+package me.totalfreedom.bukkittelnet;
+
+import me.totalfreedom.bukkittelnet.thirdparty.YamlConfig;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public class TelnetConfigLoader
+{
+
+    private final YamlConfig config;
+    private final TelnetConfig configEntries;
+
+    public TelnetConfigLoader(BukkitTelnet plugin)
+    {
+        configEntries = new TelnetConfig();
+        config = new YamlConfig(plugin, "config.yml", true);
+    }
+
+    public void load()
+    {
+        config.load();
+
+        configEntries.setAddress(config.getString("address"));
+        configEntries.setPort(config.getInt("port"));
+        configEntries.setPassword(config.getString("password"));
+
+        configEntries.clearAdmins();
+        if (config.isConfigurationSection("admins"))
+        {
+            for (String admin : config.getConfigurationSection("admins").getKeys(false))
+            {
+
+                if (!config.isList("admins." + admin))
+                {
+                    continue;
+                }
+
+                configEntries.addAdmin(admin, config.getStringList("admins." + admin));
+            }
+        }
+
+        if (configEntries.getPassword().isEmpty())
+        {
+            configEntries.setPassword(config.getDefaultConfig().getString("password"));
+            TelnetLogger.warning("Password is undefined in config!");
+            TelnetLogger.warning("Defaulting to " + configEntries.getPassword());
+        }
+    }
+
+    public TelnetConfig getConfig()
+    {
+        return configEntries;
+    }
+
+    public static final class TelnetConfig
+    {
+
+        private int port;
+        private String address;
+        private String password;
+        private final Map<String, List<String>> admins;
+
+        private TelnetConfig()
+        {
+            admins = new HashMap<>();
+        }
+
+        public int getPort()
+        {
+            return port;
+        }
+
+        public void setPort(int port)
+        {
+            this.port = port;
+        }
+
+        public String getAddress()
+        {
+            return address;
+        }
+
+        public void setAddress(String address)
+        {
+            this.address = address;
+        }
+
+        public String getPassword()
+        {
+            return password;
+        }
+
+        public void setPassword(String password)
+        {
+            this.password = password;
+        }
+
+        public Map<String, List<String>> getAdmins()
+        {
+            return Collections.unmodifiableMap(admins);
+        }
+
+        private void clearAdmins()
+        {
+            admins.clear();
+        }
+
+        private void addAdmin(String name, List<String> ips)
+        {
+            admins.put(name, ips);
+        }
+    }
+
+}