Start implementing bot info command

src/main/java/wtf/beatrice/hidekobot/Configuration.java

@@ -1,9 +1,16 @@
 package wtf.beatrice.hidekobot;
 
+import net.dv8tion.jda.api.interactions.commands.Command;
 import org.jetbrains.annotations.Nullable;
 import wtf.beatrice.hidekobot.database.DatabaseManager;
 import wtf.beatrice.hidekobot.listeners.MessageLogger;
 
+import java.awt.*;
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.List;
+
 public class Configuration
 {
 
@@ -20,6 +27,16 @@ public class Configuration
     // note: discord sets interactions' expiry time to 15 minutes by default, so we can't go higher than that.
     private final static long expiryTimeSeconds = 60L;
 
+    // used to count eg. uptime
+    private static LocalDateTime startupTime;
+
+
+    private static final String botVersion = "0.1.1-slash"; // we should probably find a way to make this consistent with Maven
+    private static final String botName = "HidekoBot";
+    private static final Color botColor = Color.PINK;
+
+    private static final List<Command> registeredCommands = new ArrayList<>();
+
     private final static String defaultInviteLink =
             "https://discord.com/api/oauth2/authorize?client_id=%userid%&scope=bot+applications.commands&permissions=8";
 
@@ -134,4 +151,64 @@ public class Configuration
      */
     public static long getExpiryTimeSeconds() { return expiryTimeSeconds; }
 
+
+    public static String getBotName() { return botName; };
+
+    /**
+     * Get the bot's version.
+     *
+     * @return a String of the bot version.
+     */
+    public static String getBotVersion() { return botVersion; }
+
+    /**
+     * Get the bot's global color.
+     *
+     * @return the Color object.
+     */
+    public static Color getBotColor() { return botColor; }
+
+    /**
+     * Set the list of registered commands. They will be sorted alphabetically.
+     *
+     * @param commands a list of registered commands.
+     */
+    public static void setRegisteredCommands(List<Command> commands)
+    {
+
+        // sort alphabetically by field getName()
+        List<Command> tempList = commands
+                .stream()
+                .sorted(Comparator.comparing(Command::getName))
+                .toList();
+
+        registeredCommands.addAll(tempList);
+    }
+
+    /**
+     * Get a list of all bot registered commands, sorted alphabetically.
+     *
+     * @return a copy of the List.
+     */
+    public static List<Command> getRegisteredCommands()
+    {
+        return new ArrayList<>(registeredCommands);
+    }
+
+    /**
+     * Set the bot's startup time. Generally only used at boot time.
+     *
+     * @param time a LocalDateTime of the startup moment.
+     */
+    public static void setStartupTime(LocalDateTime time)
+    { startupTime = time; }
+
+
+    /**
+     * Get the time of when the bot was started up.
+     *
+     * @return a LocalDateTime object of the startup instant.
+     */
+    public static LocalDateTime getStartupTime() { return startupTime; }
+
 }

src/main/java/wtf/beatrice/hidekobot/HidekoBot.java

@@ -16,6 +16,7 @@ import wtf.beatrice.hidekobot.utils.Logger;
 import wtf.beatrice.hidekobot.utils.SlashCommandsUtil;
 
 import java.io.File;
+import java.time.LocalDateTime;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -26,7 +27,6 @@ import java.util.concurrent.TimeUnit;
 public class HidekoBot
 {
     private static String botToken;
-    private static final String version = "0.1.1-slash"; // we should probably find a way to make this consistent with Maven
 
     private static JDA jda;
 
@@ -120,13 +120,16 @@ public class HidekoBot
         int periodicDelay = 5;
         scheduler.scheduleAtFixedRate(task, initDelay, periodicDelay, TimeUnit.SECONDS);
 
-
-        // print the bot logo.
-        logger.log("\n\n" + logger.getLogo() + "\nv" + version + " - bot is ready!\n", 2);
-
         // register shutdown interrupt signal listener for proper shutdown.
         Signal.handle(new Signal("INT"), signal -> shutdown());
 
+        // set startup time.
+        Configuration.setStartupTime(LocalDateTime.now());
+
+        // print the bot logo.
+        logger.log("\n\n" + logger.getLogo() + "\nv" + Configuration.getBotVersion() + " - bot is ready!\n", 2);
+
+
         // log the invite-link to console so noob users can just click on it.
         logger.log("Bot User ID: " + botUserId, 3);
         logger.log("Invite Link: " + Configuration.getInviteUrl(), 4);

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

@@ -7,13 +7,12 @@ import net.dv8tion.jda.api.interactions.commands.OptionMapping;
 import org.jetbrains.annotations.NotNull;
 import wtf.beatrice.hidekobot.Configuration;
 
-import java.awt.*;
-
 public class AvatarCommand
 {
 
     public void runSlashCommand(@NotNull SlashCommandInteractionEvent event)
     {
+        // defer reply because this might take a moment
         event.deferReply().queue();
 
         User user;
@@ -55,7 +54,7 @@ public class AvatarCommand
 
         // embed processing
         {
-            embedBuilder.setColor(Color.PINK);
+            embedBuilder.setColor(Configuration.getBotColor());
             embedBuilder.setTitle("Profile picture");
 
             embedBuilder.addField("User", "<@" + user.getId() + ">", false);

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

@@ -0,0 +1,85 @@
+package wtf.beatrice.hidekobot.commands.slash;
+
+import net.dv8tion.jda.api.EmbedBuilder;
+import net.dv8tion.jda.api.events.interaction.command.SlashCommandInteractionEvent;
+import net.dv8tion.jda.api.interactions.commands.Command;
+import org.jetbrains.annotations.NotNull;
+import wtf.beatrice.hidekobot.Configuration;
+import wtf.beatrice.hidekobot.HidekoBot;
+
+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
+{
+
+    public void runSlashCommand(@NotNull SlashCommandInteractionEvent event)
+    {
+        // defer reply because this might take a moment
+        event.deferReply().queue();
+
+        List<Command> registeredCommands = Configuration.getRegisteredCommands();
+
+        EmbedBuilder embedBuilder = new EmbedBuilder();
+
+        // embed processing
+        {
+            embedBuilder.setColor(Configuration.getBotColor());
+            embedBuilder.setTitle(Configuration.getBotName());
+
+            // thumbnail
+            String botAvatarUrl = HidekoBot.getAPI().getSelfUser().getAvatarUrl();
+            if(botAvatarUrl != null) embedBuilder.setThumbnail(botAvatarUrl);
+
+            // commands list field
+            StringBuilder commandsListBuilder = new StringBuilder();
+            commandsListBuilder.append(registeredCommands.size()).append( " total - ");
+            for(int i = 0; i < registeredCommands.size(); i++)
+            {
+                Command cmd = registeredCommands.get(i);
+                commandsListBuilder.append("`" + cmd.getName() + "`");
+
+                if(i + 1 != registeredCommands.size()) // don't add comma in last iteration
+                {
+                    commandsListBuilder.append(", ");
+                }
+
+            }
+            embedBuilder.addField("Commands", commandsListBuilder.toString(), false);
+
+            // version field
+            embedBuilder.addField("Version", "v" + Configuration.getBotVersion(), true);
+
+            // jvm version field
+            String jvmVersion = ManagementFactory.getRuntimeMXBean().getVmVersion();
+            embedBuilder.addField("JVM Version", "v" + jvmVersion, true);
+
+            // used ram field
+            long usedRamBytes = (Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory());
+            double usedRamMB = usedRamBytes / 1024.0 / 1024.0; // bytes -> kB -> MB
+            DecimalFormat ramMBFormatter = new DecimalFormat("#.##");
+            embedBuilder.addField("RAM Usage", ramMBFormatter.format(usedRamMB) + " MB", true);
+
+            // author field
+            String authorMention = "<@" + Configuration.getBotOwnerId() + ">";
+            embedBuilder.addField("Author", authorMention, true);
+
+            // uptime field
+            LocalDateTime now = LocalDateTime.now();
+            long uptimeSeconds = ChronoUnit.SECONDS.between(Configuration.getStartupTime(), now);
+            Duration uptime = Duration.ofSeconds(uptimeSeconds);
+            uptime.toDaysPart() // todo
+            embedBuilder.addField("Uptime", "seconds: " + uptime, true);
+
+
+        }
+
+        event.getHook().editOriginalEmbeds(embedBuilder.build()).queue();
+
+
+    }
+}

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

@@ -13,6 +13,7 @@ public class SlashCommandListener extends ListenerAdapter
     {
         switch (event.getName().toLowerCase()) {
             case "avatar" -> new AvatarCommand().runSlashCommand(event);
+            case "botinfo" -> new BotInfoCommand().runSlashCommand(event);
             case "clear" -> new ClearChatCommand().runSlashCommand(event);
             case "coinflip" -> new CoinFlipCommand().runSlashCommand(event);
             case "die" -> new DieCommand().runSlashCommand(event);

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

@@ -7,6 +7,7 @@ import net.dv8tion.jda.api.interactions.commands.DefaultMemberPermissions;
 import net.dv8tion.jda.api.interactions.commands.OptionType;
 import net.dv8tion.jda.api.interactions.commands.build.CommandData;
 import net.dv8tion.jda.api.interactions.commands.build.Commands;
+import wtf.beatrice.hidekobot.Configuration;
 import wtf.beatrice.hidekobot.HidekoBot;
 import wtf.beatrice.hidekobot.listeners.MessageListener;
 
@@ -23,7 +24,8 @@ public class SlashCommandsUtil
         add(Commands.slash("avatar", "Get someone's profile picture.")
                 .addOption(OptionType.USER, "user", "User you want to grab the avatar of.")
                 .addOption(OptionType.INTEGER, "size", "The size of the returned image.", false, true));
-        add(Commands.slash("die", "Stop the bot's process")
+        add(Commands.slash("botinfo", "Get info about the bot."));
+        add(Commands.slash("die", "Stop the bot's process.")
                 .setDefaultPermissions(DefaultMemberPermissions.DISABLED));
         add(Commands.slash("clear", "Clear the current channel's chat.")
                 .addOption(OptionType.INTEGER, "amount", "The amount of messages to delete.")
@@ -118,76 +120,7 @@ public class SlashCommandsUtil
             logger.log("Commands updated. New total: " + allCommands.size() + ".");
         }
 
-
-
-        /*
-        List<CommandData> toAdd = new ArrayList<>();
-        List<Command> toDelete = new ArrayList<>();
-
-        List<Command> registeredCommands = jdaInstance.retrieveCommands().complete();
-
-        // for each command that we have already registered...
-        for(Command currRegCmd : registeredCommands)
-        {
-            // queue it for removal.
-            boolean toRemove = true;
-
-            // iterate through all "recognized" commands
-            for(CommandData cmdData : allCommands)
-            {
-                // if we find the same command...
-                if(cmdData.getName().equals(currRegCmd.getName()))
-                {
-                    // then don't remove it
-                    toRemove = false;
-                    // and quit the loop since we found it.
-                    break;
-                }
-            }
-
-            // if no match was found, queue this command for removal.
-            if(toRemove) toDelete.add(currRegCmd);
-
-        }
-
-        // for each "recognized" valid command
-        for(CommandData currCmdData : allCommands)
-        {
-            // queue it for registration.
-            boolean toRegister = true;
-
-            // iterate through all already registered commands.
-            for(Command cmd : registeredCommands)
-            {
-                // if this command was already registered...
-                if(cmd.getName().equals(currCmdData.getName()))
-                {
-                    // flag that we don't need to register it
-                    toRegister = false;
-                    // and quit the loop since we found a match.
-                    break;
-                }
-            }
-
-            // if no match was found, queue this command for registration.
-            if(toRegister) toAdd.add(currCmdData);
-        }
-
-        logger.log("Found " + registeredCommands.size() + " commands.");
-
-        // remove all commands queued for removal.
-        for(Command cmd : toDelete)
-        {
-            jdaInstance.deleteCommandById(cmd.getId()).queue();
-        }
-
-        logger.log("Deleted " + toDelete.size() + " commands.");
-
-        // register all new commands.
-        jdaInstance.updateCommands().addCommands(toAdd).queue();
-        logger.log("Registered " + toAdd.size() + " new commands.");
-
-
-         */
+        // cache the registered commands.
+        Configuration.setRegisteredCommands(jdaInstance.retrieveCommands().complete());
     }
 }