Add invert command & stop deferReply()

src/main/java/me/goudham/bot/command/info/avatar/Avatar.java

@@ -2,24 +2,56 @@ package me.goudham.bot.command.info.avatar;
 
 import io.micronaut.context.annotation.Executable;
 import jakarta.inject.Inject;
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import javax.imageio.ImageIO;
 import me.goudham.command.annotation.Option;
 import me.goudham.command.annotation.SlashCommand;
 import me.goudham.command.annotation.SubCommand;
 import me.goudham.service.EmbedService;
+import me.goudham.service.ImageService;
 import net.dv8tion.jda.api.entities.MessageEmbed;
 import net.dv8tion.jda.api.entities.User;
 import net.dv8tion.jda.api.events.interaction.SlashCommandEvent;
-import net.dv8tion.jda.api.interactions.InteractionHook;
 import net.dv8tion.jda.api.interactions.commands.OptionMapping;
 import net.dv8tion.jda.api.interactions.commands.OptionType;
 
 @SlashCommand(name = "avatar", description = "Display your avatar", isVisible = true, subCommandGroups = { "cool" })
 public class Avatar {
     private final EmbedService embedService;
+    private final ImageService imageService;
 
     @Inject
-    public Avatar(EmbedService embedService) {
+    public Avatar(EmbedService embedService, ImageService imageService) {
         this.embedService = embedService;
+        this.imageService = imageService;
+    }
+
+    @Executable
+    @SubCommand(
+            name = "invert",
+            description = "Display your or another member's avatar with a negative filter applied",
+            options = {
+                    @Option(
+                            optionType = OptionType.USER,
+                            name = "member",
+                            description = "A member within the server",
+                            isRequired = false
+                    )
+            }
+    )
+    public void invertCommand(SlashCommandEvent slashCommandEvent) throws IOException {
+        OptionMapping optionalUser = slashCommandEvent.getOption("member");
+        User user = optionalUser == null ? slashCommandEvent.getUser() : optionalUser.getAsUser();
+
+        BufferedImage inputImage = ImageIO.read(new URL(user.getEffectiveAvatarUrl()));
+        imageService.invertImage(inputImage);
+
+        InputStream byteArrayInputStream = new ByteArrayInputStream(imageService.toByteArray(inputImage, "png"));
+        slashCommandEvent.reply("**" + user.getName() + "'s Avatar\nFilter Applied -> Negative**").addFile(byteArrayInputStream, "invert.png").queue();
     }
 
     @Executable
@@ -35,8 +67,15 @@ public class Avatar {
                     )
             }
     )
-    public void grayscaleCommand(SlashCommandEvent slashCommandEvent) {
+    public void grayscaleCommand(SlashCommandEvent slashCommandEvent) throws IOException {
+        OptionMapping optionalUser = slashCommandEvent.getOption("member");
+        User user = optionalUser == null ? slashCommandEvent.getUser() : optionalUser.getAsUser();
 
+        BufferedImage inputImage = ImageIO.read(new URL(user.getEffectiveAvatarUrl()));
+        BufferedImage grayscaleImage = imageService.toGrayscaleImage(inputImage);
+
+        InputStream byteArrayInputStream = new ByteArrayInputStream(imageService.toByteArray(grayscaleImage, "png"));
+        slashCommandEvent.reply("**" + user.getName() + "'s Avatar\nFilter Applied -> Grayscale**").addFile(byteArrayInputStream, "grayscale.png").queue();
     }
 
     @Executable
@@ -53,9 +92,6 @@ public class Avatar {
             }
     )
     public void defaultCommand(SlashCommandEvent slashCommandEvent) {
-        slashCommandEvent.deferReply(false).queue();
-        InteractionHook hook = slashCommandEvent.getHook();
-
         OptionMapping optionalUser = slashCommandEvent.getOption("member");
         User user = optionalUser == null ? slashCommandEvent.getUser() : optionalUser.getAsUser();
 
@@ -64,6 +100,6 @@ public class Avatar {
                 .setImage(user.getEffectiveAvatarUrl() + "?size=4096")
                 .build();
 
-        hook.sendMessageEmbeds(avatarEmbed).queue();
+        slashCommandEvent.replyEmbeds(avatarEmbed).queue();
     }
 }