add JDA activation codes with graalvm native image configures

src/main/kotlin/space/mori/chzzk_bot/Main.kt

@@ -1,5 +1,15 @@
 package space.mori.chzzk_bot
 
+import io.github.cdimascio.dotenv.dotenv
+import org.slf4j.Logger
+import org.slf4j.LoggerFactory
+import space.mori.chzzk_bot.discord.Discord
+
+val dotenv = dotenv()
+val logger: Logger = LoggerFactory.getLogger("main")
+
 fun main(args: Array<String>) {
-    println(args.joinToString("/"))
+    val discord = Discord()
+
+    discord.enable()
 }

src/main/kotlin/space/mori/chzzk_bot/discord/Discord.kt

@@ -0,0 +1,48 @@
+package space.mori.chzzk_bot.discord
+
+import net.dv8tion.jda.api.JDA
+import net.dv8tion.jda.api.JDABuilder
+import net.dv8tion.jda.api.entities.Activity
+import net.dv8tion.jda.api.entities.Guild
+import net.dv8tion.jda.api.interactions.commands.build.Commands
+import space.mori.chzzk_bot.dotenv
+import space.mori.chzzk_bot.logger
+import kotlin.concurrent.thread
+
+class Discord {
+    lateinit var bot: JDA
+    var guild: Guild? = null
+
+    internal fun enable() {
+        try {
+            val thread = thread {
+                bot = JDABuilder.createDefault(dotenv["DISCORD_TOKEN"])
+                    .setActivity(Activity.playing("치지직 보는중"))
+                    .build().awaitReady()
+
+                guild = bot.getGuildById(dotenv["GUILD_ID"])
+
+                bot.updateCommands().addCommands(
+                    Commands.slash("ping", "Pong!")
+                ).queue()
+
+                if (guild == null) {
+                    logger.info("No guild found!")
+                    this.disable()
+                }
+            }
+        } catch(e: Exception) {
+            logger.info("Could not enable Discord!")
+            logger.debug(e.stackTraceToString())
+        }
+    }
+
+    internal fun disable() {
+        try {
+            bot.shutdown()
+        } catch(e: Exception) {
+            logger.info("Error while shutting down Discord!")
+            logger.debug(e.stackTraceToString())
+        }
+    }
+}