add JDA activation codes with graalvm native image configures

.gitignore

@@ -241,4 +241,6 @@ gradle-app.setting
 # Java heap dump
 *.hprof
 
+.env
+
 # End of https://www.toptal.com/developers/gitignore/api/macos,windows,linux,kotlin,gradle,intellij

.idea/modules/chzzk_bot.main.iml

@@ -3,6 +3,7 @@
   <component name="AdditionalModuleElements">
     <content url="file://$MODULE_DIR$/../../src/main" dumb="true">
       <sourceFolder url="file://$MODULE_DIR$/../../src/main/kotlin" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/../../src/main/resources" type="java-resource" />
     </content>
   </component>
 </module>

build.gradle.kts

@@ -14,11 +14,23 @@ java {
     sourceCompatibility = JavaVersion.VERSION_21
 }
 
+kotlin {
+    jvmToolchain(21)
+}
+
 application {
     mainClass.set("${"${project.group}.${project.name}".lowercase()}.MainKt")
 }
 
 graalvmNative {
+    agent {
+        trackReflectionMetadata.set(true)
+
+        metadataCopy {
+            outputDirectories.add("src/main/resources/META-INF/native-image")
+            mergeWithExisting.set(true)
+        }
+    }
     binaries {
         binaries.all {
             resources.autodetect()
@@ -28,6 +40,9 @@ graalvmNative {
             sharedLibrary.set(false)
         }
     }
+    metadataRepository {
+        enabled.set(true)
+    }
 }
 
 repositories {
@@ -41,6 +56,9 @@ dependencies {
     }
     // https://mvnrepository.com/artifact/io.github.R2turnTrue/chzzk4j
     implementation("io.github.R2turnTrue:chzzk4j:0.0.7")
+    implementation("ch.qos.logback:logback-classic:1.4.14")
+
+    implementation("io.github.cdimascio:dotenv-kotlin:6.4.1")
 
     kotlin("stdlib-jdk8")
 }

inc.env

@@ -0,0 +1,2 @@
+DISCORD_TOKEN=
+GUILD_ID

reflect-config.json

@@ -0,0 +1,6 @@
+[
+  {
+    "name": "net.dv8tion.jda.api.entities.Guild[]",
+    "unsafeAllocated": true
+  }
+]

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())
+        }
+    }
+}