add AddCommand.kt

src/main/kotlin/space/mori/chzzk_bot/chzzk/ChzzkHandler.kt

@@ -29,9 +29,17 @@ object ChzzkHandler {
             handler.disable()
         }
     }
+
+    internal fun reloadCommand(chzzkChannel: ChzzkChannel) {
+        val handler = handlers.firstOrNull { it.channel == chzzkChannel }
+        if (handler != null)
+            handler.reloadCommand()
+        else
+            throw RuntimeException("${chzzkChannel.channelName} doesn't have handler")
+    }
 }
 
-class UserHandler(private val channel: ChzzkChannel, private val logger: Logger) {
+class UserHandler(val channel: ChzzkChannel, private val logger: Logger) {
     private lateinit var messageHandler: MessageHandler
 
     private var listener: ChzzkChat = chzzk.chat(channel.channelId)
@@ -66,4 +74,8 @@ class UserHandler(private val channel: ChzzkChannel, private val logger: Logger)
     internal fun disable() {
         listener.closeBlocking()
     }
+
+    internal fun reloadCommand() {
+        messageHandler.reloadCommand()
+    }
 }

src/main/kotlin/space/mori/chzzk_bot/chzzk/MessageHandler.kt

@@ -6,6 +6,7 @@ import space.mori.chzzk_bot.services.UserService
 import xyz.r2turntrue.chzzk4j.chat.ChatMessage
 import xyz.r2turntrue.chzzk4j.chat.ChzzkChat
 import xyz.r2turntrue.chzzk4j.types.channel.ChzzkChannel
+
 class MessageHandler(
     private val channel: ChzzkChannel,
     private val logger: Logger,
@@ -14,6 +15,10 @@ class MessageHandler(
     private val commands = mutableMapOf<String, () -> Unit>()
 
     init {
+        reloadCommand()
+    }
+
+    internal fun reloadCommand() {
         val user = UserService.getUser(channel.channelId)
             ?: throw RuntimeException("User not found. it's bug? ${channel.channelName} - ${channel.channelId}")
         val commands = CommandService.getCommands(user)