Implement basic say command

src/main/java/wtf/beatrice/hidekobot/commands/slash/BotInfoCommand.java

@@ -6,13 +6,10 @@ import net.dv8tion.jda.api.interactions.commands.Command;
 import org.jetbrains.annotations.NotNull;
 import wtf.beatrice.hidekobot.Configuration;
 import wtf.beatrice.hidekobot.HidekoBot;
-import wtf.beatrice.hidekobot.utils.TimeUtil;
+import wtf.beatrice.hidekobot.utils.FormatUtil;
 
 import java.lang.management.ManagementFactory;
 import java.text.DecimalFormat;
-import java.time.Duration;
-import java.time.LocalDateTime;
-import java.time.temporal.ChronoUnit;
 import java.util.List;
 
 public class BotInfoCommand
@@ -75,12 +72,12 @@ public class BotInfoCommand
             embedBuilder.addField("Author", authorMention, true);
 
             // uptime field
-            embedBuilder.addField("Uptime", TimeUtil.getNiceUptime(), true);
+            embedBuilder.addField("Uptime", FormatUtil.getNiceUptime(), true);
 
             // issue tracker field
             embedBuilder.addField("Support",
                     "[Issue tracker](https://git.beatrice.wtf/mind-overflow/HidekoBot/issues)",
-                    true);
+                    true); //todo: we should probably make this a final field in the config class
         }
 
         event.getHook().editOriginalEmbeds(embedBuilder.build()).queue();

src/main/java/wtf/beatrice/hidekobot/commands/slash/ClearChatCommand.java

@@ -38,8 +38,8 @@ public class ClearChatCommand
         /* get the amount from the command args.
          NULL should not be possible because we specified them as mandatory,
          but apparently the mobile app doesn't care and still sends the command if you omit the args. */
-            OptionMapping amountMapping = event.getOption("amount");
+            OptionMapping amountOption = event.getOption("amount");
-            int toDeleteAmount = amountMapping == null ? 1 : amountMapping.getAsInt();
+            int toDeleteAmount = amountOption == null ? 1 : amountOption.getAsInt();
 
             if(toDeleteAmount <= 0)
             {

src/main/java/wtf/beatrice/hidekobot/commands/slash/SayCommand.java

@@ -0,0 +1,36 @@
+package wtf.beatrice.hidekobot.commands.slash;
+
+import net.dv8tion.jda.api.entities.channel.middleman.MessageChannel;
+import net.dv8tion.jda.api.events.interaction.command.SlashCommandInteractionEvent;
+import net.dv8tion.jda.api.interactions.commands.OptionMapping;
+import org.jetbrains.annotations.NotNull;
+
+public class SayCommand
+{
+
+    public void runSlashCommand(@NotNull SlashCommandInteractionEvent event)
+    {
+        MessageChannel channel = event.getChannel();
+
+        // get the text to send
+        OptionMapping textOption = event.getOption("text");
+        String messageContent = "";
+        if(textOption != null)
+        {
+             messageContent = textOption.getAsString();
+        }
+
+        if(textOption == null || messageContent.isEmpty())
+        {
+            event.reply("Hey, you have to tell me what to say!")
+                    .setEphemeral(true)
+                    .queue();
+            return;
+        }
+
+        channel.sendMessage(messageContent).queue();
+        event.reply("Message sent!")
+                .setEphemeral(true)
+                .queue();
+    }
+}

src/main/java/wtf/beatrice/hidekobot/listeners/SlashCommandListener.java

@@ -20,6 +20,7 @@ public class SlashCommandListener extends ListenerAdapter
             case "help" -> new HelpCommand().runSlashCommand(event);
             case "invite" -> new InviteCommand().runSlashCommand(event);
             case "ping" -> new PingCommand().runSlashCommand(event);
+            case "say" -> new SayCommand().runSlashCommand(event);
         }
     }
 }

src/main/java/wtf/beatrice/hidekobot/utils/FormatUtil.java

@@ -6,12 +6,12 @@ import java.time.Duration;
 import java.time.LocalDateTime;
 import java.time.temporal.ChronoUnit;
 
-public class TimeUtil
+public class FormatUtil
 {
 
     /**
      * Generate a nicely formatted uptime String that omits unnecessary data
-     * (eg. 0 days, 0 hours, 4 minutes, 32 seconds -> 4m 32s)
+     * (e.g. 0 days, 0 hours, 4 minutes, 32 seconds -> 4m 32s)
      *
      * @return the formatter String
      */

src/main/java/wtf/beatrice/hidekobot/utils/SlashCommandUtil.java

@@ -34,6 +34,9 @@ public class SlashCommandUtil
         add(Commands.slash("help", "Get general help on the bot."));
         add(Commands.slash("invite", "Get an invite link for the bot."));
         add(Commands.slash("ping", "Test if the bot is responsive."));
+        add(Commands.slash("say", "Make the bot say something.")
+                .addOption(OptionType.STRING, "text", "The message to send.", true, false)
+                .setDefaultPermissions(DefaultMemberPermissions.enabledFor(Permission.MESSAGE_MANAGE)));
     }};
 
     public static void updateSlashCommands(boolean force)