lib/src/main/java/net/tomatentum/marinara/interaction/annotation/AutoComplete.java

@@ -0,0 +1,12 @@
+package net.tomatentum.marinara.interaction.annotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Target({ElementType.METHOD})
+@Retention(RetentionPolicy.RUNTIME)
+public @interface AutoComplete {
+    
+}

lib/src/main/java/net/tomatentum/marinara/interaction/commands/ChoiceValueProvider.java

@@ -0,0 +1,5 @@
+package net.tomatentum.marinara.interaction.commands;
+
+public interface ChoiceValueProvider<T> {
+    T getChoiceValue();
+}

lib/src/main/java/net/tomatentum/marinara/interaction/commands/EnumChoices.java

@@ -0,0 +1,78 @@
+package net.tomatentum.marinara.interaction.commands;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.lang.reflect.ParameterizedType;
+import java.lang.reflect.Type;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+import io.leangen.geantyref.AnnotationFormatException;
+import io.leangen.geantyref.GenericTypeReflector;
+import io.leangen.geantyref.TypeFactory;
+import net.tomatentum.marinara.interaction.commands.annotation.SlashCommandOptionChoice;
+
+public record EnumChoices(Class<? extends Enum<?>> enumClass, ChoiceType type, SlashCommandOptionChoice[] choices) {
+
+    private static Method method;
+
+    static {
+        try {
+            method = ChoiceValueProvider.class.getMethod("getChoiceValue");
+        } catch (NoSuchMethodException | SecurityException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static EnumChoices of(Class<? extends Enum<?>> enumClass) {
+        if (!ChoiceValueProvider.class.isAssignableFrom(enumClass))
+            throw new IllegalArgumentException("Provided class needs to implement the ChoiceValueProvider interface.");
+        ChoiceType type = parseChoiceType(enumClass);
+        SlashCommandOptionChoice[] choices = parseChoices(enumClass, type);
+        return new EnumChoices(enumClass, type, choices);
+    }
+
+    private static ChoiceType parseChoiceType(Class<? extends Enum<?>> enumClass) {
+        ParameterizedType type = (ParameterizedType) GenericTypeReflector.getExactSuperType(enumClass, ChoiceValueProvider.class);
+        Type typeParam = type.getActualTypeArguments()[0];
+
+        if (!(typeParam instanceof Class<?>))
+            throw new IllegalArgumentException("ChoiceValueProvider need either a String or Number type parameter.");
+
+        if (Long.class.isAssignableFrom((Class<?>) typeParam))
+            return ChoiceType.INTEGER;
+        if (Double.class.isAssignableFrom((Class<?>) typeParam))
+            return ChoiceType.DOUBLE;
+        if (String.class.isAssignableFrom((Class<?>) typeParam))
+            return ChoiceType.String;
+        throw new IllegalArgumentException("ChoiceValueProvider need either a String, Number or Decimal type parameter.");
+    }
+
+    private static SlashCommandOptionChoice[] parseChoices(Class<? extends Enum<?>> enumClass, ChoiceType type) {
+        Enum<? extends Enum<?>>[] constants = enumClass.getEnumConstants();
+        List<SlashCommandOptionChoice> choices = new ArrayList<>();
+        for (Enum<? extends Enum<?>> enumInstance : constants) {
+            Object value;
+            try {
+                value = method.invoke(enumInstance);
+                if (type.equals(ChoiceType.INTEGER))
+                    choices.add(TypeFactory.annotation(SlashCommandOptionChoice.class, Map.of("name", enumInstance.name(), "longValue", value)));
+                if (type.equals(ChoiceType.DOUBLE))
+                    choices.add(TypeFactory.annotation(SlashCommandOptionChoice.class, Map.of("name", enumInstance.name(), "doubleValue", value)));
+                if (type.equals(ChoiceType.String))
+                    choices.add(TypeFactory.annotation(SlashCommandOptionChoice.class, Map.of("name", enumInstance.name(), "stringValue", value)));
+            } catch (IllegalAccessException | InvocationTargetException | AnnotationFormatException e) {
+                e.printStackTrace();
+                return null;
+            }
+        }
+        return choices.toArray(new SlashCommandOptionChoice[0]);
+    }
+
+    public static enum ChoiceType {
+        String,
+        INTEGER,
+        DOUBLE
+    }
+}

lib/src/main/java/net/tomatentum/marinara/interaction/commands/ExecutableSlashCommandDefinition.java

@@ -2,8 +2,10 @@ package net.tomatentum.marinara.interaction.commands;
 
 import net.tomatentum.marinara.interaction.commands.annotation.SlashCommand;
 import net.tomatentum.marinara.interaction.commands.annotation.SlashCommandOption;
+import net.tomatentum.marinara.interaction.commands.annotation.SlashCommandOptionChoice;
 import net.tomatentum.marinara.interaction.commands.annotation.SubCommand;
 import net.tomatentum.marinara.interaction.commands.annotation.SubCommandGroup;
+import net.tomatentum.marinara.interaction.commands.annotation.SlashCommandOption.PlaceHolderEnum;
 
 public record ExecutableSlashCommandDefinition(
     SlashCommand applicationCommand,
@@ -11,6 +13,13 @@ public record ExecutableSlashCommandDefinition(
     SubCommandGroup subCommandGroup, 
     SlashCommandOption[] options) {
 
+    public static SlashCommandOptionChoice[] getActualChoices(SlashCommandOption option) {
+        SlashCommandOptionChoice[] choices = option.choices();
+        if (choices.length <= 0 && !option.choiceEnum().equals(PlaceHolderEnum.class))
+            choices = EnumChoices.of(option.choiceEnum()).choices();
+        return choices;
+    }
+
     @Override
     public final boolean equals(Object o) {
         if (!(o instanceof ExecutableSlashCommandDefinition))
@@ -18,8 +27,8 @@ public record ExecutableSlashCommandDefinition(
         ExecutableSlashCommandDefinition other = (ExecutableSlashCommandDefinition) o;
         boolean equals = false;
 
-        if (this.applicationCommand() != null && other.subCommandGroup() != null)
-            equals = this.applicationCommand.name().equals(other.applicationCommand().name());
+        if (this.applicationCommand() != null && other.applicationCommand() != null)
+            equals = this.applicationCommand().name().equals(other.applicationCommand().name());
 
         if (this.subCommandGroup() != null && other.subCommandGroup() != null)
             equals = this.subCommandGroup().name().equals(other.subCommandGroup().name());

lib/src/main/java/net/tomatentum/marinara/interaction/commands/annotation/SlashCommandOption.java

@@ -14,4 +14,11 @@ public @interface SlashCommandOption {
     public String description() default "";
     public SlashCommandOptionType type() default SlashCommandOptionType.STRING;
     public boolean required() default false;
+    public boolean autocomplete() default false;
+    public SlashCommandOptionChoice[] choices() default {};
+    public Class<? extends Enum<?>> choiceEnum() default PlaceHolderEnum.class;
+
+    public static enum PlaceHolderEnum {
+
+    }
 }

lib/src/main/java/net/tomatentum/marinara/interaction/commands/annotation/SlashCommandOptionChoice.java

@@ -0,0 +1,8 @@
+package net.tomatentum.marinara.interaction.commands.annotation;
+
+public @interface SlashCommandOptionChoice {
+    public String name();
+    public long longValue() default Long.MAX_VALUE;
+    public double doubleValue() default Double.MAX_VALUE;
+    public String stringValue() default "";
+}

lib/src/main/java/net/tomatentum/marinara/interaction/commands/option/SlashCommandOptionType.java

@@ -1,16 +1,26 @@
 package net.tomatentum.marinara.interaction.commands.option;
 
 public enum SlashCommandOptionType {
-    ATTACHMENT,
-    BOOLEAN,
-    CHANNEL,
-    DECIMAL,
-    LONG,
-    MENTIONABLE,
-    ROLE,
-    STRING,
-    SUB_COMMAND,
-    SUB_COMMAND_GROUP,
-    UNKNOW,
-    USER
+    SUB_COMMAND(1),
+    SUB_COMMAND_GROUP(2),
+    STRING(3),
+    INTEGER(4),
+    BOOLEAN(5),
+    USER(6),
+    CHANNEL(7),
+    ROLE(8),
+    MENTIONABLE(9),
+    DOUBLE(10),
+    ATTACHMENT(11),
+    UNKNOWN(-1);
+
+    private final int value;
+
+    private SlashCommandOptionType(int value) {
+        this.value = value;
+    }
+
+    public int getValue() {
+        return value;
+    }
 }

lib/src/main/java/net/tomatentum/marinara/interaction/methods/AutoCompleteInteractionMethod.java

@@ -0,0 +1,51 @@
+package net.tomatentum.marinara.interaction.methods;
+
+import java.lang.reflect.Method;
+
+import net.tomatentum.marinara.Marinara;
+import net.tomatentum.marinara.interaction.InteractionHandler;
+import net.tomatentum.marinara.interaction.InteractionType;
+import net.tomatentum.marinara.interaction.commands.ExecutableSlashCommandDefinition;
+import net.tomatentum.marinara.parser.AnnotationParser;
+import net.tomatentum.marinara.parser.SlashCommandParser;
+
+public class AutoCompleteInteractionMethod extends InteractionMethod {
+
+    private ExecutableSlashCommandDefinition commandDefinition;
+
+    public AutoCompleteInteractionMethod(Method method, 
+        InteractionHandler handler, 
+        Marinara marinara
+        ) {
+        super(method, handler, marinara);
+    }
+
+    @Override
+    public AnnotationParser[] getParsers() {
+        return new AnnotationParser[] { 
+            new SlashCommandParser(method, (x) -> { this.commandDefinition = x; } ) 
+        };
+    }
+
+    @Override
+    public Object getParameter(Object context, int index) {
+        Class<?> type = getMethod().getParameterTypes()[index+1];
+        Object autocompleteOptionValue = marinara.getWrapper().getContextObjectProvider().getAutocompleteFocusedOption(context);
+        if (autocompleteOptionValue != null)
+            return autocompleteOptionValue;
+
+        return marinara.getWrapper().getContextObjectProvider().getComponentContextObject(context, type);
+    }
+
+    @Override
+    public boolean canRun(Object context) {
+        ExecutableSlashCommandDefinition other = marinara.getWrapper().getCommandDefinition(context);
+        return commandDefinition.equals(other);
+    }
+
+    @Override
+    public InteractionType getType() {
+        return InteractionType.AUTOCOMPLETE;
+    }
+    
+}

lib/src/main/java/net/tomatentum/marinara/interaction/methods/ButtonInteractionMethod.java

@@ -24,9 +24,9 @@ public class ButtonInteractionMethod extends InteractionMethod {
     }
 
     @Override
-    public Object getParameter(Object parameter, int index) {
+    public Object getParameter(Object context, int index) {
         Class<?> type = getMethod().getParameterTypes()[index+1];
-        return marinara.getWrapper().getComponentContextObject(parameter, type);
+        return marinara.getWrapper().getContextObjectProvider().getComponentContextObject(context, type);
     }
 
     @Override
@@ -38,4 +38,5 @@ public class ButtonInteractionMethod extends InteractionMethod {
     public InteractionType getType() {
         return InteractionType.BUTTON;
     }
+    
 }

lib/src/main/java/net/tomatentum/marinara/interaction/methods/InteractionMethod.java

@@ -11,6 +11,7 @@ import net.tomatentum.marinara.Marinara;
 import net.tomatentum.marinara.checks.AppliedCheck;
 import net.tomatentum.marinara.interaction.InteractionHandler;
 import net.tomatentum.marinara.interaction.InteractionType;
+import net.tomatentum.marinara.interaction.annotation.AutoComplete;
 import net.tomatentum.marinara.interaction.annotation.Button;
 import net.tomatentum.marinara.interaction.commands.annotation.SlashCommand;
 import net.tomatentum.marinara.interaction.commands.annotation.SubCommand;
@@ -20,6 +21,8 @@ import net.tomatentum.marinara.parser.InteractionCheckParser;
 public abstract class InteractionMethod {
 
     public static InteractionMethod create(Method method, InteractionHandler handler, Marinara marinara) {
+        if (method.isAnnotationPresent(AutoComplete.class))
+            return new AutoCompleteInteractionMethod(method, handler, marinara);
         if (method.isAnnotationPresent(SlashCommand.class) || method.isAnnotationPresent(SubCommand.class))
             return new SlashCommandInteractionMethod(method, handler, marinara);
         if (method.isAnnotationPresent(Button.class))
@@ -53,7 +56,7 @@ public abstract class InteractionMethod {
 
     public abstract AnnotationParser[] getParsers();
 
-    public abstract Object getParameter(Object parameter, int index);
+    public abstract Object getParameter(Object context, int index);
 
     public abstract boolean canRun(Object context);
 

lib/src/main/java/net/tomatentum/marinara/interaction/methods/SlashCommandInteractionMethod.java

@@ -26,7 +26,7 @@ public class SlashCommandInteractionMethod extends InteractionMethod {
 
     @Override
     public Object getParameter(Object context, int index) {
-        return marinara.getWrapper().convertCommandOption(context, commandDefinition.options()[index].type(), commandDefinition.options()[index].name());
+        return marinara.getWrapper().getContextObjectProvider().convertCommandOption(context, commandDefinition.options()[index].name());
     }
 
     @Override

lib/src/main/java/net/tomatentum/marinara/wrapper/ContextObjectProvider.java

@@ -0,0 +1,11 @@
+package net.tomatentum.marinara.wrapper;
+
+public interface ContextObjectProvider {
+
+    public Object convertCommandOption(Object context, String optionName);
+
+    public Object getComponentContextObject(Object context, Class<?> type);
+    public Object getInteractionContextObject(Object context, Class<?> type);
+
+    public Object getAutocompleteFocusedOption(Object context);
+}

lib/src/main/java/net/tomatentum/marinara/wrapper/LibraryWrapper.java

@@ -6,7 +6,6 @@ import java.util.function.Consumer;
 
 import net.tomatentum.marinara.interaction.commands.SlashCommandDefinition;
 import net.tomatentum.marinara.interaction.commands.ExecutableSlashCommandDefinition;
-import net.tomatentum.marinara.interaction.commands.option.SlashCommandOptionType;
 import net.tomatentum.marinara.interaction.InteractionType;
 
 public abstract class LibraryWrapper {
@@ -17,7 +16,6 @@ public abstract class LibraryWrapper {
         interactionSubscriber = new ArrayList<>();
     }
 
-
     public void handleInteraction(Object context) {
         interactionSubscriber.forEach((o) -> o.accept(context));
     }
@@ -32,9 +30,10 @@ public abstract class LibraryWrapper {
     public abstract InteractionType getInteractionType(Class<?> clazz);
 
     public abstract void registerSlashCommands(SlashCommandDefinition[] defs); 
-    public abstract Object convertCommandOption(Object context, SlashCommandOptionType type, String optionName);
     public abstract ExecutableSlashCommandDefinition getCommandDefinition(Object context);
 
     public abstract String getButtonId(Object context);
-    public abstract Object getComponentContextObject(Object context, Class<?> type);
+
+    public abstract ContextObjectProvider getContextObjectProvider();
+
 }

wrapper/javacord/src/main/java/net/tomatentum/marinara/wrapper/javacord/JavacordContextObjectProvider.java

@@ -0,0 +1,110 @@
+package net.tomatentum.marinara.wrapper.javacord;
+
+import org.javacord.api.interaction.AutocompleteInteraction;
+import org.javacord.api.interaction.ButtonInteraction;
+import org.javacord.api.interaction.SlashCommandInteraction;
+import org.javacord.api.interaction.SlashCommandInteractionOption;
+import org.javacord.api.interaction.SlashCommandOptionType;
+
+import net.tomatentum.marinara.wrapper.ContextObjectProvider;
+
+public class JavacordContextObjectProvider implements ContextObjectProvider {
+
+    @Override
+    public Object convertCommandOption(Object context, String optionName) {
+        if (!(context instanceof SlashCommandInteraction))
+            return null;
+        SlashCommandInteraction interaction = (SlashCommandInteraction) context;
+        if (!interaction.getArguments().isEmpty())
+            return getOptionValue(interaction.getOptionByName(optionName).get());
+
+        SlashCommandInteractionOption subCommandOption = interaction.getOptions().getFirst();
+
+        if (!subCommandOption.getOptions().isEmpty())
+            subCommandOption = subCommandOption.getOptions().getFirst();
+
+        return getOptionValue(subCommandOption.getOptionByName(optionName).get());
+    }
+
+    private Object getOptionValue(SlashCommandInteractionOption option) {
+        SlashCommandOptionType type = getOptionType(option);
+        switch (type) {
+            case ATTACHMENT:
+                return option.getAttachmentValue().get();
+            case BOOLEAN:
+                return option.getBooleanValue().get();
+            case CHANNEL:
+                return option.getChannelValue().get();
+            case DECIMAL:
+                return option.getDecimalValue().get();
+            case LONG:
+                return option.getLongValue().get();
+            case MENTIONABLE:
+                return option.requestMentionableValue().get();
+            case ROLE:
+                return option.getRoleValue().get();
+            case STRING:
+                return option.getStringValue().get();
+            case USER:
+                return option.requestUserValue().get();
+            default:
+                return null;
+        }
+    }
+
+
+    private SlashCommandOptionType getOptionType(SlashCommandInteractionOption option) {
+        if (option.getAttachmentValue().isPresent())
+            return SlashCommandOptionType.ATTACHMENT;
+        if (option.getBooleanValue().isPresent())
+            return SlashCommandOptionType.BOOLEAN;
+        if (option.getChannelValue().isPresent())
+            return SlashCommandOptionType.CHANNEL;
+        if (option.getDecimalValue().isPresent())
+            return SlashCommandOptionType.DECIMAL;
+        if (option.getLongValue().isPresent())
+            return SlashCommandOptionType.LONG;
+        if (option.requestMentionableValue().isPresent())
+            return SlashCommandOptionType.MENTIONABLE;
+        if (option.getRoleValue().isPresent())
+            return SlashCommandOptionType.ROLE;
+        if (option.getStringValue().isPresent())
+            return SlashCommandOptionType.STRING;
+        if (option.requestUserValue().isPresent())
+            return SlashCommandOptionType.USER;
+
+        return SlashCommandOptionType.UNKNOWN;
+    }
+
+    @Override
+    public Object getComponentContextObject(Object context, Class<?> type) {
+        ButtonInteraction button = (ButtonInteraction) context;
+        switch (type.getName()) {
+            case "org.javacord.api.entity.message.Message":
+                return button.getMessage();
+            default:
+                return getInteractionContextObject(context, type);
+        }
+    }
+
+    @Override
+    public Object getInteractionContextObject(Object context, Class<?> type) {
+        ButtonInteraction button = (ButtonInteraction) context;
+        switch (type.getName()) {
+            case "org.javacord.api.entity.channel.TextChannel":
+                return button.getChannel().orElse(null);
+            case "org.javacord.api.entity.server.Server":
+                return button.getServer().orElse(null);
+            case "org.javacord.api.entity.user.User":
+                return button.getUser();
+        }
+        return null;
+    }
+
+    @Override
+    public Object getAutocompleteFocusedOption(Object context) {
+        AutocompleteInteraction interaction = (AutocompleteInteraction) context;
+        return getOptionValue(interaction.getFocusedOption());
+    }
+
+}

wrapper/javacord/src/main/java/net/tomatentum/marinara/wrapper/javacord/JavacordWrapper.java

@@ -10,10 +10,14 @@ import java.util.Set;
 
 import org.javacord.api.DiscordApi;
 import org.javacord.api.interaction.ApplicationCommandInteraction;
+import org.javacord.api.interaction.AutocompleteInteraction;
 import org.javacord.api.interaction.ButtonInteraction;
 import org.javacord.api.interaction.SlashCommandBuilder;
 import org.javacord.api.interaction.SlashCommandInteraction;
 import org.javacord.api.interaction.SlashCommandInteractionOption;
+import org.javacord.api.interaction.SlashCommandOptionBuilder;
+import org.javacord.api.interaction.SlashCommandOptionChoiceBuilder;
+import org.javacord.api.interaction.SlashCommandOptionType;
 
 import io.leangen.geantyref.AnnotationFormatException;
 import io.leangen.geantyref.TypeFactory;
@@ -22,27 +26,31 @@ import net.tomatentum.marinara.interaction.commands.ExecutableSlashCommandDefini
 import net.tomatentum.marinara.interaction.commands.SlashCommandDefinition;
 import net.tomatentum.marinara.interaction.commands.annotation.SlashCommand;
 import net.tomatentum.marinara.interaction.commands.annotation.SlashCommandOption;
+import net.tomatentum.marinara.interaction.commands.annotation.SlashCommandOptionChoice;
 import net.tomatentum.marinara.interaction.commands.annotation.SubCommand;
 import net.tomatentum.marinara.interaction.commands.annotation.SubCommandGroup;
-import net.tomatentum.marinara.interaction.commands.option.SlashCommandOptionType;
+import net.tomatentum.marinara.wrapper.ContextObjectProvider;
 import net.tomatentum.marinara.wrapper.LibraryWrapper;
 
 public class JavacordWrapper extends LibraryWrapper {
 
     private DiscordApi api;
+    private JavacordContextObjectProvider contextObjectProvider;
 
     public JavacordWrapper(DiscordApi api) {
         this.api = api;
+        this.contextObjectProvider = new JavacordContextObjectProvider();
         api.addInteractionCreateListener((e) -> handleInteraction(e.getInteraction()));
     }
 
     @Override
     public InteractionType getInteractionType(Class<?> clazz) {
+        if (AutocompleteInteraction.class.isAssignableFrom(clazz))
+            return InteractionType.AUTOCOMPLETE;
         if (ApplicationCommandInteraction.class.isAssignableFrom(clazz))
             return InteractionType.COMMAND;
         if (ButtonInteraction.class.isAssignableFrom(clazz))
             return InteractionType.BUTTON;
-
         return null;
     }
 
@@ -67,22 +75,6 @@ public class JavacordWrapper extends LibraryWrapper {
         api.bulkOverwriteGlobalApplicationCommands(globalCommands);
     }
 
-    @Override
-    public Object convertCommandOption(Object context, SlashCommandOptionType type, String optionName) {
-        if (!(context instanceof SlashCommandInteraction))
-            return null;
-        SlashCommandInteraction interaction = (SlashCommandInteraction) context;
-        if (!interaction.getArguments().isEmpty())
-            return getOptionValue(interaction.getOptionByName(optionName).get(), type);
-
-        SlashCommandInteractionOption subCommandOption = interaction.getOptions().getFirst();
-
-        if (!subCommandOption.getOptions().isEmpty())
-            subCommandOption = subCommandOption.getOptions().getFirst();
-
-        return getOptionValue(subCommandOption.getOptionByName(optionName).get(), type);
-    }
-
     @Override
     public ExecutableSlashCommandDefinition getCommandDefinition(Object context) {
         if (!(context instanceof SlashCommandInteraction))
@@ -93,11 +85,13 @@ public class JavacordWrapper extends LibraryWrapper {
         List<SlashCommandInteractionOption> options = interaction.getOptions();
         try {
             builder.setApplicationCommand(TypeFactory.annotation(SlashCommand.class, Map.of("name", interaction.getCommandName())));
-            if (!options.getFirst().getArguments().isEmpty()) {
-                builder.setSubCommandGroup(TypeFactory.annotation(SubCommandGroup.class, Map.of("name", options.getFirst().getName())));
-                builder.setSubCommand(TypeFactory.annotation(SubCommand.class, Map.of("name", options.getFirst().getOptions().getFirst().getName())));
-            }else
-                builder.setSubCommand(TypeFactory.annotation(SubCommand.class, Map.of("name", options.getFirst().getName())));
+            if (!options.isEmpty()) {
+                if (!options.getFirst().getArguments().isEmpty()) {
+                    builder.setSubCommandGroup(TypeFactory.annotation(SubCommandGroup.class, Map.of("name", options.getFirst().getName())));
+                    builder.setSubCommand(TypeFactory.annotation(SubCommand.class, Map.of("name", options.getFirst().getOptions().getFirst().getName())));
+                }else
+                    builder.setSubCommand(TypeFactory.annotation(SubCommand.class, Map.of("name", options.getFirst().getName())));
+            }
         } catch (AnnotationFormatException e) {
             e.printStackTrace();
         }
@@ -121,43 +115,53 @@ public class JavacordWrapper extends LibraryWrapper {
     private org.javacord.api.interaction.SlashCommandOption convertSubCommandGroupDef(SlashCommandDefinition def, SubCommandGroup subGroup) {
         SubCommand[] subCommands = def.getSubCommands(subGroup.name());
         org.javacord.api.interaction.SlashCommandOption[] convertedSubCommands = (org.javacord.api.interaction.SlashCommandOption[]) Arrays.stream(subCommands).map(this::convertSubCommandDef).toArray();
-        return org.javacord.api.interaction.SlashCommandOption.createWithOptions(org.javacord.api.interaction.SlashCommandOptionType.SUB_COMMAND_GROUP, subGroup.name(), subGroup.description(), Arrays.asList(convertedSubCommands));
+        return org.javacord.api.interaction.SlashCommandOption.createWithOptions(
+            org.javacord.api.interaction.SlashCommandOptionType.SUB_COMMAND_GROUP, 
+            subGroup.name(), 
+            subGroup.description(), 
+            Arrays.asList(convertedSubCommands));
     }
 
     private org.javacord.api.interaction.SlashCommandOption convertSubCommandDef(SubCommand sub) {
         List<org.javacord.api.interaction.SlashCommandOption> convertedOptions = new ArrayList<>();
         Arrays.stream(sub.options()).map(this::convertOptionDef).forEach(convertedOptions::add);
-        return org.javacord.api.interaction.SlashCommandOption.createWithOptions(org.javacord.api.interaction.SlashCommandOptionType.SUB_COMMAND, sub.name(), sub.description(), convertedOptions);
+        return org.javacord.api.interaction.SlashCommandOption.createWithOptions(
+            org.javacord.api.interaction.SlashCommandOptionType.SUB_COMMAND, 
+            sub.name(), 
+            sub.description(), 
+            convertedOptions);
     }
 
     private org.javacord.api.interaction.SlashCommandOption convertOptionDef(SlashCommandOption option) {
-        org.javacord.api.interaction.SlashCommandOptionType type = Enum.valueOf(org.javacord.api.interaction.SlashCommandOptionType.class, option.type().toString());
-        return org.javacord.api.interaction.SlashCommandOption.create(type, option.name(), option.description(), option.required());
+        SlashCommandOptionType type = SlashCommandOptionType.fromValue(option.type().getValue());
+        SlashCommandOptionBuilder builder = new SlashCommandOptionBuilder();
+        builder
+            .setType(type)
+            .setName(option.name())
+            .setDescription(option.description())
+            .setRequired(option.required())
+            .setAutocompletable(option.autocomplete())
+            .setChoices(convertChoices(option));
+        
+        return builder.build();
     }
 
-    private Object getOptionValue(SlashCommandInteractionOption option, SlashCommandOptionType type) {
-        switch (type) {
-            case ATTACHMENT:
-                return option.getAttachmentValue().get();
-            case BOOLEAN:
-                return option.getBooleanValue().get();
-            case CHANNEL:
-                return option.getChannelValue().get();
-            case DECIMAL:
-                return option.getDecimalValue().get();
-            case LONG:
-                return option.getLongValue().get();
-            case MENTIONABLE:
-                return option.getMentionableValue().get();
-            case ROLE:
-                return option.getRoleValue().get();
-            case STRING:
-                return option.getStringValue().get();
-            case USER:
-                return option.getUserValue().get();
-            default:
-                return null;
+    private List<org.javacord.api.interaction.SlashCommandOptionChoice> convertChoices(SlashCommandOption option) {
+        List<org.javacord.api.interaction.SlashCommandOptionChoice> convertedChoices = new ArrayList<>();
+        for (SlashCommandOptionChoice choice : ExecutableSlashCommandDefinition.getActualChoices(option)) {
+            SlashCommandOptionChoiceBuilder builder = new SlashCommandOptionChoiceBuilder();
+            builder.setName(choice.name());
+            if (choice.longValue() != Long.MAX_VALUE)
+                builder.setValue(choice.longValue());
+            /*
+            not yet available
+            if (choice.doubleValue() != Double.MAX_VALUE)
+                builder.setValue(choice.doubleValue());
+            */
+            if (!choice.stringValue().isEmpty())
+                builder.setValue(choice.stringValue());
         }
+        return convertedChoices;
     }
 
     @Override
@@ -167,20 +171,8 @@ public class JavacordWrapper extends LibraryWrapper {
     }
 
     @Override
-    public Object getComponentContextObject(Object context, Class<?> type) {
-        ButtonInteraction button = (ButtonInteraction) context;
-        switch (type.getName()) {
-            case "org.javacord.api.entity.channel.TextChannel":
-                return button.getChannel().orElse(null);
-            case "org.javacord.api.entity.message.Message":
-                return button.getMessage();
-            case "org.javacord.api.entity.server.Server":
-                return button.getServer().orElse(null);
-            case "org.javacord.api.entity.user.User":
-                return button.getUser();
-        }
-        return null;
+    public ContextObjectProvider getContextObjectProvider() {
+        return contextObjectProvider;
     }
 
-    
 }

wrapper/javacord/src/test/java/net/tomatentum/marinara/test/AutoCompleteTest.java

@@ -0,0 +1,23 @@
+package net.tomatentum.marinara.test;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.junit.jupiter.api.Test;
+
+import net.tomatentum.marinara.Marinara;
+import net.tomatentum.marinara.test.mocks.AutocompleteInteractionMock;
+import net.tomatentum.marinara.test.mocks.DiscordApiMock;
+import net.tomatentum.marinara.wrapper.LibraryWrapper;
+import net.tomatentum.marinara.wrapper.javacord.JavacordWrapper;
+
+public class AutoCompleteTest {
+    
+    @Test
+    public void testAutocomplete() {
+        LibraryWrapper wrapper = new JavacordWrapper(new DiscordApiMock()); //null okay as we don't use the discord API in this test.
+        Marinara marinara = Marinara.load(wrapper);
+        marinara.getRegistry().addInteractions(new TestAutocomplete());
+        wrapper.handleInteraction(new AutocompleteInteractionMock());
+        assertTrue(AutocompleteInteractionMock.didAutocompleteRun);
+    }
+}

wrapper/javacord/src/test/java/net/tomatentum/marinara/test/TestAutocomplete.java

@@ -0,0 +1,23 @@
+package net.tomatentum.marinara.test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.util.Collections;
+
+import org.javacord.api.interaction.AutocompleteInteraction;
+
+import net.tomatentum.marinara.interaction.InteractionHandler;
+import net.tomatentum.marinara.interaction.annotation.AutoComplete;
+import net.tomatentum.marinara.interaction.commands.annotation.SlashCommand;
+
+public class TestAutocomplete implements InteractionHandler {
+    
+    @SlashCommand(name = "test")
+    @AutoComplete
+    public void autocomplete(AutocompleteInteraction context, String value) {
+        System.out.println("Success!");
+        assertEquals(value, "test");
+        context.respondWithChoices(Collections.emptyList());
+    }
+
+}

wrapper/javacord/src/test/java/net/tomatentum/marinara/test/TestChoiceEnum.java

@@ -0,0 +1,20 @@
+package net.tomatentum.marinara.test;
+
+import net.tomatentum.marinara.interaction.commands.ChoiceValueProvider;
+
+public enum TestChoiceEnum implements ChoiceValueProvider<String> {
+    TestValue("testValue"),
+    FooBar("fooBar"),
+    Spongebob("spongebob");
+
+    private String value;
+
+    private TestChoiceEnum(String value) {
+        this.value = value;
+    }
+    @Override
+    public String getChoiceValue() {
+        return value;
+    }
+    
+}

wrapper/javacord/src/test/java/net/tomatentum/marinara/test/TestCommand.java

@@ -20,7 +20,8 @@ public class TestCommand implements InteractionHandler {
             @SlashCommandOption(
                 name = "foo",
                 description = "foo bar is very fooby",
-                type = SlashCommandOptionType.STRING
+                type = SlashCommandOptionType.STRING,
+                choiceEnum = TestChoiceEnum.class
             )
         }
         )

wrapper/javacord/src/test/java/net/tomatentum/marinara/test/mocks/AutocompleteInteractionMock.java

@@ -0,0 +1,179 @@
+package net.tomatentum.marinara.test.mocks;
+
+import java.util.ArrayList;
+import java.util.EnumSet;
+import java.util.List;
+import java.util.Optional;
+import java.util.concurrent.CompletableFuture;
+
+import org.javacord.api.DiscordApi;
+import org.javacord.api.entity.channel.TextChannel;
+import org.javacord.api.entity.message.component.HighLevelComponent;
+import org.javacord.api.entity.permission.PermissionType;
+import org.javacord.api.entity.server.Server;
+import org.javacord.api.entity.user.User;
+import org.javacord.api.interaction.AutocompleteInteraction;
+import org.javacord.api.interaction.DiscordLocale;
+import org.javacord.api.interaction.InteractionType;
+import org.javacord.api.interaction.SlashCommandInteractionOption;
+import org.javacord.api.interaction.SlashCommandOptionChoice;
+import org.javacord.api.interaction.callback.InteractionFollowupMessageBuilder;
+import org.javacord.api.interaction.callback.InteractionImmediateResponseBuilder;
+import org.javacord.api.interaction.callback.InteractionOriginalResponseUpdater;
+
+public class AutocompleteInteractionMock implements AutocompleteInteraction {
+
+    public static boolean didAutocompleteRun = false;
+
+    @Override
+    public String getFullCommandName() {
+        return "test";
+    }
+
+    @Override
+    public long getCommandId() {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'getCommandId'");
+    }
+
+    @Override
+    public String getCommandIdAsString() {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'getCommandIdAsString'");
+    }
+
+    @Override
+    public String getCommandName() {
+        return "test";
+    }
+
+    @Override
+    public Optional<Long> getRegisteredCommandServerId() {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'getRegisteredCommandServerId'");
+    }
+
+    @Override
+    public long getApplicationId() {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'getApplicationId'");
+    }
+
+    @Override
+    public InteractionType getType() {
+        return InteractionType.APPLICATION_COMMAND_AUTOCOMPLETE;
+    }
+
+    @Override
+    public InteractionImmediateResponseBuilder createImmediateResponder() {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'createImmediateResponder'");
+    }
+
+    @Override
+    public CompletableFuture<InteractionOriginalResponseUpdater> respondLater() {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'respondLater'");
+    }
+
+    @Override
+    public CompletableFuture<InteractionOriginalResponseUpdater> respondLater(boolean ephemeral) {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'respondLater'");
+    }
+
+    @Override
+    public CompletableFuture<Void> respondWithModal(String customId, String title,
+            List<HighLevelComponent> components) {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'respondWithModal'");
+    }
+
+    @Override
+    public InteractionFollowupMessageBuilder createFollowupMessageBuilder() {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'createFollowupMessageBuilder'");
+    }
+
+    @Override
+    public Optional<Server> getServer() {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'getServer'");
+    }
+
+    @Override
+    public Optional<TextChannel> getChannel() {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'getChannel'");
+    }
+
+    @Override
+    public User getUser() {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'getUser'");
+    }
+
+    @Override
+    public String getToken() {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'getToken'");
+    }
+
+    @Override
+    public int getVersion() {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'getVersion'");
+    }
+
+    @Override
+    public DiscordLocale getLocale() {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'getLocale'");
+    }
+
+    @Override
+    public Optional<DiscordLocale> getServerLocale() {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'getServerLocale'");
+    }
+
+    @Override
+    public Optional<EnumSet<PermissionType>> getBotPermissions() {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'getBotPermissions'");
+    }
+
+    @Override
+    public DiscordApi getApi() {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'getApi'");
+    }
+
+    @Override
+    public long getId() {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'getId'");
+    }
+
+    @Override
+    public List<SlashCommandInteractionOption> getOptions() {
+        return new ArrayList<>();
+    }
+
+    @Override
+    public List<SlashCommandInteractionOption> getArguments() {
+        return new ArrayList<>();
+    }
+
+    @Override
+    public CompletableFuture<Void> respondWithChoices(List<SlashCommandOptionChoice> choices) {
+        didAutocompleteRun = true;
+        return CompletableFuture.completedFuture(null);
+    }
+
+    @Override
+    public SlashCommandInteractionOption getFocusedOption() {
+        return new SlashCommandInteractionOptionMock();
+    }
+    
+}

wrapper/javacord/src/test/java/net/tomatentum/marinara/test/mocks/SlashCommandInteractionOptionMock.java

@@ -41,52 +41,52 @@ public class SlashCommandInteractionOptionMock implements SlashCommandInteractio
 
     @Override
     public Optional<Long> getLongValue() {
-        throw new UnsupportedOperationException("Unimplemented method 'getLongValue'");
+        return Optional.empty();
     }
 
     @Override
     public Optional<Boolean> getBooleanValue() {
-        throw new UnsupportedOperationException("Unimplemented method 'getBooleanValue'");
+        return Optional.empty();
     }
 
     @Override
     public Optional<User> getUserValue() {
-        throw new UnsupportedOperationException("Unimplemented method 'getUserValue'");
+        return Optional.empty();
     }
 
     @Override
     public Optional<CompletableFuture<User>> requestUserValue() {
-        throw new UnsupportedOperationException("Unimplemented method 'requestUserValue'");
+        return Optional.empty();
     }
 
     @Override
     public Optional<ServerChannel> getChannelValue() {
-        throw new UnsupportedOperationException("Unimplemented method 'getChannelValue'");
+        return Optional.empty();
     }
 
     @Override
     public Optional<Attachment> getAttachmentValue() {
-        throw new UnsupportedOperationException("Unimplemented method 'getAttachmentValue'");
+        return Optional.empty();
     }
 
     @Override
     public Optional<Role> getRoleValue() {
-        throw new UnsupportedOperationException("Unimplemented method 'getRoleValue'");
+        return Optional.empty();
     }
 
     @Override
     public Optional<Mentionable> getMentionableValue() {
-        throw new UnsupportedOperationException("Unimplemented method 'getMentionableValue'");
+        return Optional.empty();
     }
 
     @Override
     public Optional<Double> getDecimalValue() {
-        throw new UnsupportedOperationException("Unimplemented method 'getDecimalValue'");
+        return Optional.empty();
     }
 
     @Override
     public Optional<CompletableFuture<Mentionable>> requestMentionableValue() {
-        throw new UnsupportedOperationException("Unimplemented method 'requestMentionableValue'");
+        return Optional.empty();
     }
 
     @Override