bot runs and can ping/pong

build.gradle.kts

@@ -2,6 +2,15 @@ import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
     kotlin("jvm") version "1.3.31"
+    application
+}
+sourceSets {
+    getByName("main").resources.srcDirs("src/main/resources")
+}
+
+sourceSets["main"].resources.srcDir("src/main/resources")
+application {
+    mainClassName = "moe.kageru.kagebot.MainKt"
 }
 
 group = "moe.kageru.kagebot"
@@ -12,10 +21,11 @@ repositories {
 }
 
 dependencies {
-    implementation(kotlin("stdlib-jdk11"))
-    compile("com.electronwill.night-config:toml:3.6.0")
+    implementation(kotlin("stdlib-jdk8"))
+    implementation("org.javacord:javacord:3.0.4")
+    compile("com.moandjiezana.toml:toml4j:0.7.2")
 }
 
 tasks.withType<KotlinCompile> {
-    kotlinOptions.jvmTarget = "1.11"
+    kotlinOptions.jvmTarget = "1.8"
 }

settings.gradle

@@ -1,2 +1 @@
-rootProject.name = 'kagebot'
-
+rootProject.name = 'moe.kageru.kagebot'

src/main/kotlin/moe/kageru/kagebot/Command.kt

@@ -0,0 +1,6 @@
+package moe.kageru.kagebot
+
+class Command(private val input: String, private val output: String) {
+    fun matches(msg: String) = msg.startsWith(this.input)
+    fun respond() = this.output
+}

src/main/kotlin/moe/kageru/kagebot/Config.kt

@@ -0,0 +1,29 @@
+package moe.kageru.kagebot
+
+import com.moandjiezana.toml.Toml
+import java.io.File
+
+class Config(val system: System, val commands: Commands) {
+    companion object {
+        val config: Config by lazy { read("config.toml") }
+        val secret = File("secret").readText().replace("\n", "")
+
+        private fun read(path: String): Config {
+            val rawConfig: Toml = Toml().read(run {
+                val file = File(path)
+                if (file.isFile) {
+                    return@run file
+                }
+                println("Config not found, falling back to defaults...")
+                File(this::class.java.classLoader.getResource(path)!!.toURI())
+            })
+            return rawConfig.to(Config::class.java)
+        }
+
+    }
+}
+
+data class System(val serverId: String, val admins: List<String>)
+
+// wrapper for toml deserialization
+data class Commands(val commands: List<Command>)

src/main/kotlin/moe/kageru/kagebot/Log.kt

@@ -0,0 +1,25 @@
+package moe.kageru.kagebot
+
+import java.time.ZoneId
+import java.time.format.DateTimeFormatter
+import java.util.logging.*
+
+object Log {
+    val log: Logger by lazy {
+        val log = Logger.getGlobal()
+        val fh = FileHandler("kagebot.log", true)
+        val formatter = LogFormatter()
+        fh.formatter = formatter
+        log.addHandler(fh)
+        return@lazy log
+    }
+}
+
+private class LogFormatter : Formatter() {
+    private val timeFormatter: DateTimeFormatter =
+        DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss").withZone(ZoneId.systemDefault())
+
+    override fun format(record: LogRecord): String {
+        return "[${record.level}] ${timeFormatter.format(record.instant)}: ${record.message}\n"
+    }
+}

src/main/kotlin/moe/kageru/kagebot/main.kt

@@ -0,0 +1,32 @@
+package moe.kageru.kagebot
+
+import moe.kageru.kagebot.Config.Companion.config
+import moe.kageru.kagebot.Log.log
+import org.javacord.api.DiscordApiBuilder
+import java.lang.System
+
+fun main() {
+    try {
+        createBot()
+    } catch (e: Exception) {
+        log.warning("An exception occurred in the main thread, exiting. ${e.stackTrace.joinToString("\n")}")
+        System.exit(1)
+    }
+}
+
+fun createBot() {
+    val api = DiscordApiBuilder().setToken(Config.secret).login().join()
+    println(config.system.admins)
+    Runtime.getRuntime().addShutdownHook(Thread {
+        log.info("Bot has been interrupted. Shutting down.")
+        api.disconnect()
+    })
+    log.info("kagebot Mk II running")
+    api.addMessageCreateListener { event ->
+        if (config.commands.commands[0].matches(event.messageContent)) {
+            event.channel.sendMessage(config.commands.commands[0].respond())
+            println("message was created")
+        }
+    }
+
+}

src/main/resources/config.toml

@@ -0,0 +1,13 @@
+[system]
+serverId = "356414885292277771"
+admins = [
+    "137780880344088576"
+]
+
+[commands]
+commands = [
+    {
+        input = "!ping",
+        output = "pong"
+    }
+]