made krontab in settings optional

src/main/kotlin/App.kt

@@ -127,8 +127,8 @@ suspend fun main(args: Array<String>) {
             val settings = settings ?: repo.get(chatId)
             chatsChangingMutex.withLock {
                 chatsSendingJobs[chatId] ?.cancel()
-                settings ?.let {
-                    chatsSendingJobs[chatId] = settings.scheduler.asFlow().subscribeSafelyWithoutExceptions(scope) {
+                settings ?.scheduler ?.let {
+                    chatsSendingJobs[chatId] = it.asFlow().subscribeSafelyWithoutExceptions(scope) {
                         triggerSendForChat(chatId, settings)
                     }
                 }
@@ -174,9 +174,9 @@ suspend fun main(args: Array<String>) {
             }
         }
         onCommand("request", requireOnlyCommandInMessage = false) {
-            val args = it.content.textSources.drop(1).joinToString("") { it.source }.split(" ")
+            val args = it.content.textSources.drop(1).joinToString("") { it.source }.trim().takeIf { it.isNotBlank() } ?.split(" ")
 
-            val chatSettings = if (args.isEmpty()) {
+            val chatSettings = if (args.isNullOrEmpty()) {
                 repo.get(it.chat.id) ?: run {
                     if (it.chat is PrivateChat) {
                         reply(it, "Unable to find default config")

src/main/kotlin/ChatSettings.kt

@@ -14,14 +14,14 @@ import net.kodehawa.lib.imageboards.entities.BoardImage
 @Serializable
 data class ChatSettings(
     val query: String,
-    val krontabTemplate: KrontabTemplate,
+    val krontabTemplate: KrontabTemplate?,
     @Serializable(BoardSerializer::class)
     private val boardBase: DefaultBoards,
     val count: Int = 1,
     val gallery: Boolean = false
 ) {
     val scheduler by lazy {
-        krontabTemplate.toSchedule()
+        krontabTemplate ?.toSchedule()
     }
 
     val board: ImageBoard<*>

src/main/kotlin/EnableArgsParser.kt

@@ -15,7 +15,7 @@ class EnableArgsParser: CliktCommand(name = "enable") {
     val query by argument().multiple(required = true).help("Your query to booru. Use syntax \"-- -sometag\" to add excluding of some tag in query")
     val krontab by option("-k", "--krontab").transformValues(5) {
         it.joinToString(" ")
-    }.required().help("Krontab in format * * * * *. See https://bookstack.inmo.dev/books/krontab/page/string-format")
+    }.help("Krontab in format * * * * *. See https://bookstack.inmo.dev/books/krontab/page/string-format")
     val board by option("-b", "--board").convert {
         ChatSettings.BoardSerializer.types.getValue(it)
     }.required().help("Board type. Possible values: ${ChatSettings.BoardSerializer.types.keys.joinToString { it }}")