feat: added CleanUpExtension

src/main/kotlin/net/moonleay/rssbot/extensions/CleanUpExtension.kt

@@ -0,0 +1,39 @@
+package net.moonleay.rssbot.extensions
+
+import com.kotlindiscord.kord.extensions.extensions.Extension
+import com.kotlindiscord.kord.extensions.extensions.ephemeralSlashCommand
+import com.kotlindiscord.kord.extensions.types.respond
+import kotlinx.coroutines.flow.filter
+import net.moonleay.rssbot.Bot
+import net.moonleay.rssbot.data.database.repository.SubscriptionRepository
+import net.moonleay.rssbot.util.EmbedColor
+import net.moonleay.rssbot.util.MessageUtil
+
+class CleanUpExtension  : Extension() {
+
+    override val name = "cleanup"
+    override val allowApplicationCommandInDMs: Boolean
+        get() = false
+
+
+    override suspend fun setup() {
+        ephemeralSlashCommand() {
+            name = "cleanup"
+            description = "Clean all messages from this bot in this channel"
+            this.action {
+                val user = this.user.asUser()
+                this.channel.messages.filter { it.author?.id == Bot.bot.kordRef.selfId }.collect { it.delete() }
+                this.respond {
+                    this.embeds.add(
+                        MessageUtil.getEmbed(
+                            EmbedColor.INFO,
+                            "Cleaned up",
+                            "Cleaned up all messages from this bot in this channel",
+                            user.username
+                        )
+                    )
+                }
+            }
+        }
+    }
+}