fix: replace vavr's either with in-house implementation

nicko-core/src/main/java/net/artelnatif/nicko/disguise/AppearanceManager.java

@@ -65,7 +65,7 @@ public class AppearanceManager {
         updatePlayer(true);
     }
 
-    public void updatePlayer(boolean skinChange) {
+    public UpdateResult updatePlayer(boolean skinChange) {
-        NickoBukkit.getInstance().getInternals().updateProfile(player, profile, skinChange);
+        return NickoBukkit.getInstance().getInternals().updateProfile(player, profile, skinChange);
     }
 }

nicko-core/src/main/java/net/artelnatif/nicko/disguise/UpdateResult.java

@@ -0,0 +1,25 @@
+package net.artelnatif.nicko.disguise;
+
+import net.artelnatif.nicko.i18n.I18NDict;
+
+public class UpdateResult {
+    private final I18NDict.Error errorMessage;
+    private boolean error = false;
+
+    public UpdateResult(I18NDict.Error errorMessage) {
+        this.error = true;
+        this.errorMessage = errorMessage;
+    }
+
+    public UpdateResult() {
+        this.errorMessage = null;
+    }
+
+    public boolean isError() {
+        return error;
+    }
+
+    public I18NDict.Error getErrorMessage() {
+        return errorMessage;
+    }
+}

nicko-core/src/main/java/net/artelnatif/nicko/event/PlayerJoinListener.java

@@ -2,6 +2,9 @@ package net.artelnatif.nicko.event;
 
 import net.artelnatif.nicko.NickoBukkit;
 import net.artelnatif.nicko.disguise.AppearanceManager;
+import net.artelnatif.nicko.disguise.UpdateResult;
+import net.artelnatif.nicko.i18n.I18N;
+import net.artelnatif.nicko.i18n.I18NDict;
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
@@ -17,7 +20,12 @@ public class PlayerJoinListener implements Listener {
 
             if (appearanceManager.hasData()) {
                 final boolean skinChange = !player.getName().equals(appearanceManager.getSkin());
-                appearanceManager.updatePlayer(skinChange);
+                final UpdateResult updateResult = appearanceManager.updatePlayer(skinChange);
+                if (updateResult.isError()) {
+                    player.sendMessage(I18N.translate(player, I18NDict.Event.DISGUISE_FAIL.getKey(), I18N.translate(player, updateResult.getErrorMessage().getKey())));
+                } else {
+                    player.sendMessage(I18N.translate(player, I18NDict.Event.DISGUISE_SUCCESS.getKey()));
+                }
             }
         }, 20L);
     }

nicko-core/src/main/java/net/artelnatif/nicko/impl/Internals.java

@@ -1,6 +1,7 @@
 package net.artelnatif.nicko.impl;
 
 import net.artelnatif.nicko.disguise.NickoProfile;
+import net.artelnatif.nicko.disguise.UpdateResult;
 import org.bukkit.entity.Player;
 
 public interface Internals {
@@ -8,5 +9,5 @@ public interface Internals {
 
     void updateOthers(Player player);
 
-    void updateProfile(Player player, NickoProfile profile, boolean skinChange);
+    UpdateResult updateProfile(Player player, NickoProfile profile, boolean skinChange);
 }

v1_18_R1/src/main/java/net/artelnatif/nicko/impl/v1_18_R1.java

@@ -5,6 +5,8 @@ import com.mojang.authlib.properties.Property;
 import com.mojang.authlib.properties.PropertyMap;
 import net.artelnatif.nicko.NickoBukkit;
 import net.artelnatif.nicko.disguise.NickoProfile;
+import net.artelnatif.nicko.disguise.UpdateResult;
+import net.artelnatif.nicko.i18n.I18NDict;
 import net.artelnatif.nicko.mojang.MojangSkin;
 import net.minecraft.network.chat.IChatBaseComponent;
 import net.minecraft.network.protocol.game.*;
@@ -82,7 +84,7 @@ public class v1_18_R1 implements Internals {
     }
 
     @Override
-    public void updateProfile(Player player, NickoProfile profile, boolean skinChange) {
+    public UpdateResult updateProfile(Player player, NickoProfile profile, boolean skinChange) {
         final CraftPlayer craftPlayer = (CraftPlayer) player;
         final EntityPlayer entityPlayer = craftPlayer.getHandle();
         Optional<MojangSkin> skin;
@@ -103,13 +105,13 @@ public class v1_18_R1 implements Internals {
                         properties.put("textures", new Property("textures", skin.get().value(), skin.get().signature()));
                         updateSelf(player);
                     } else {
-                        return;
+                        return new UpdateResult(I18NDict.Error.SKIN_FAIL_MOJANG);
                     }
                 } else {
-                    return;
+                    return new UpdateResult(I18NDict.Error.NAME_FAIL_MOJANG);
                 }
             } catch (IOException | ExecutionException e) {
-                return;
+                return new UpdateResult(I18NDict.Error.UNEXPECTED_ERROR);
             }
         }
 
@@ -125,5 +127,6 @@ public class v1_18_R1 implements Internals {
             onlineEntityPlayer.b.a(add);
         });
         updateOthers(player);
+        return new UpdateResult();
     }
 }

v1_18_R2/src/main/java/net/artelnatif/nicko/impl/v1_18_R2.java

@@ -5,6 +5,8 @@ import com.mojang.authlib.properties.Property;
 import com.mojang.authlib.properties.PropertyMap;
 import net.artelnatif.nicko.NickoBukkit;
 import net.artelnatif.nicko.disguise.NickoProfile;
+import net.artelnatif.nicko.disguise.UpdateResult;
+import net.artelnatif.nicko.i18n.I18NDict;
 import net.artelnatif.nicko.mojang.MojangSkin;
 import net.minecraft.core.Holder;
 import net.minecraft.network.chat.IChatBaseComponent;
@@ -82,7 +84,7 @@ public class v1_18_R2 implements Internals {
     }
 
     @Override
-    public void updateProfile(Player player, NickoProfile profile, boolean skinChange) {
+    public UpdateResult updateProfile(Player player, NickoProfile profile, boolean skinChange) {
         final CraftPlayer craftPlayer = (CraftPlayer) player;
         final EntityPlayer entityPlayer = craftPlayer.getHandle();
         Optional<MojangSkin> skin;
@@ -103,13 +105,13 @@ public class v1_18_R2 implements Internals {
                         properties.put("textures", new Property("textures", skin.get().value(), skin.get().signature()));
                         updateSelf(player);
                     } else {
-                        return;
+                        return new UpdateResult(I18NDict.Error.SKIN_FAIL_MOJANG);
                     }
                 } else {
-                    return;
+                    return new UpdateResult(I18NDict.Error.NAME_FAIL_MOJANG);
                 }
             } catch (IOException | ExecutionException e) {
-                return;
+                return new UpdateResult(I18NDict.Error.UNEXPECTED_ERROR);
             }
         }
 
@@ -125,5 +127,6 @@ public class v1_18_R2 implements Internals {
             onlineEntityPlayer.b.a(add);
         });
         updateOthers(player);
+        return new UpdateResult();
     }
 }

v1_19_R1/src/main/java/net/artelnatif/nicko/impl/v1_19_R1.java

@@ -5,6 +5,8 @@ import com.mojang.authlib.properties.Property;
 import com.mojang.authlib.properties.PropertyMap;
 import net.artelnatif.nicko.NickoBukkit;
 import net.artelnatif.nicko.disguise.NickoProfile;
+import net.artelnatif.nicko.disguise.UpdateResult;
+import net.artelnatif.nicko.i18n.I18NDict;
 import net.artelnatif.nicko.mojang.MojangSkin;
 import net.minecraft.network.chat.IChatBaseComponent;
 import net.minecraft.network.protocol.game.*;
@@ -83,7 +85,7 @@ public class v1_19_R1 implements Internals {
     }
 
     @Override
-    public void updateProfile(Player player, NickoProfile profile, boolean skinChange) {
+    public UpdateResult updateProfile(Player player, NickoProfile profile, boolean skinChange) {
         final CraftPlayer craftPlayer = (CraftPlayer) player;
         final EntityPlayer entityPlayer = craftPlayer.getHandle();
         Optional<MojangSkin> skin;
@@ -104,29 +106,30 @@ public class v1_19_R1 implements Internals {
                         properties.put("textures", new Property("textures", skin.get().value(), skin.get().signature()));
                         updateSelf(player);
                     } else {
-                        return;
+                        return new UpdateResult(I18NDict.Error.SKIN_FAIL_MOJANG);
                     }
                 } else {
-                    return;
+                    return new UpdateResult(I18NDict.Error.NAME_FAIL_MOJANG);
                 }
             } catch (IOException | ExecutionException e) {
-                return;
+                return new UpdateResult(I18NDict.Error.UNEXPECTED_ERROR);
             }
-
-            add.b().clear();
-            add.b().add(new PacketPlayOutPlayerInfo.PlayerInfoData(gameProfile,
-                    player.getPing(),
-                    EnumGamemode.a(player.getGameMode().ordinal()),
-                    IChatBaseComponent.a(profile.getName()),
-                    entityPlayer.fz().b()));
-            entityPlayer.b.a(add);
-
-            Bukkit.getOnlinePlayers().forEach(online -> {
-                EntityPlayer onlineEntityPlayer = ((CraftPlayer) online).getHandle();
-                onlineEntityPlayer.b.a(remove);
-                onlineEntityPlayer.b.a(add);
-            });
-            updateOthers(player);
         }
+
+        add.b().clear();
+        add.b().add(new PacketPlayOutPlayerInfo.PlayerInfoData(gameProfile,
+                player.getPing(),
+                EnumGamemode.a(player.getGameMode().ordinal()),
+                IChatBaseComponent.a(profile.getName()),
+                entityPlayer.fz().b()));
+        entityPlayer.b.a(add);
+
+        Bukkit.getOnlinePlayers().forEach(online -> {
+            EntityPlayer onlineEntityPlayer = ((CraftPlayer) online).getHandle();
+            onlineEntityPlayer.b.a(remove);
+            onlineEntityPlayer.b.a(add);
+        });
+        updateOthers(player);
+        return new UpdateResult();
     }
 }