Better command abstraction

lib/command.go

@@ -0,0 +1,43 @@
+package lib
+
+import (
+	"time"
+
+	"github.com/bwmarrin/discordgo"
+)
+
+type CommandFunc func(s *discordgo.Session, i *discordgo.InteractionCreate) (string, error)
+
+func HandleCommand(commandName string, cooldownDuration time.Duration, handler CommandFunc) func(s *discordgo.Session, i *discordgo.InteractionCreate) {
+	return func(s *discordgo.Session, i *discordgo.InteractionCreate) {
+		if !CheckAndApplyCooldown(s, i, commandName, cooldownDuration) {
+			return
+		}
+
+		// Acknowledge the interaction immediately
+		err := s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
+			Type: discordgo.InteractionResponseDeferredChannelMessageWithSource,
+		})
+		if err != nil {
+			ThrowWithError(commandName, "Error deferring response: "+err.Error())
+			return
+		}
+
+		// Execute the command handler
+		response, err := handler(s, i)
+
+		if err != nil {
+			RespondWithError(s, i, "Error processing command: "+err.Error())
+			return
+		}
+
+		// Send the follow-up message with the response
+		_, err = s.FollowupMessageCreate(i.Interaction, true, &discordgo.WebhookParams{
+			Content: response,
+		})
+
+		if err != nil {
+			ThrowWithError(commandName, "Error sending follow-up message: "+err.Error())
+		}
+	}
+}