Set initial dialog status as waiting for command

src/main/scala/eu/xeppaka/bot/CheckDeliveryDialog.scala

@@ -171,7 +171,7 @@ object CheckDeliveryDialog {
               val message = SendMessage(chatId, "Please enter a parcel id to remove.", reply_markup = Some(markup))
               sendMessage(message, waitParcelId(parcelId => removeParcelId(parcelId)), onFailure)
             } else {
-              val message = SendMessage(chatId, "You don't have watched parcels. There is nothing to remove.")
+              val message = SendMessage(chatId, "You don't have watched parcels. There is nothing to remove.", reply_markup = commandsKeyboard)
               sendMessage(message, onSuccess, onFailure)
             }
           case ListParcelsFailure(exception) =>
@@ -240,7 +240,7 @@ object CheckDeliveryDialog {
         Behaviors.same
     }
 
-    def sendMessage(message: SendMessage, onSuccess: => Behavior[Command], onFailure: => Behavior[Command], attempt: Int = 0): Behavior[Command] = Behaviors.setup[Command] { ctx =>
+    def sendMessage(message: SendMessage, onSuccess: => Behavior[Command], onFailure: => Behavior[Command], attempt: Int = 1): Behavior[Command] = Behaviors.setup[Command] { ctx =>
       import io.circe.generic.auto._
       import io.circe.syntax._
 
@@ -254,7 +254,7 @@ object CheckDeliveryDialog {
 
       Source
         .single(request)
-        .initialDelay(2.seconds * attempt)
+        .initialDelay(2.seconds * (attempt - 1))
         .mapAsync(1) { request =>
           http
             .singleRequest(request)
@@ -280,7 +280,7 @@ object CheckDeliveryDialog {
         case SendMessageFailure(exception) =>
           ctx.log.error(exception, "action=send_message status=finished result=failure chat_id={} attempt={}", chatId, attempt)
 
-          if (attempt >= 5) {
+          if (attempt > 5) {
             ctx.log.error(exception, "action=send_message result=failure message=attempts threshold exceeded")
             stashBuffer.unstashAll(ctx, onFailure)
           } else {

src/main/scala/eu/xeppaka/bot/TelegramBot.scala

@@ -104,7 +104,7 @@ object TelegramBot {
       }
     }
 
-    def settingWebhook(binding: Http.ServerBinding): Behavior[Command] = Behaviors.setup[Command] { ctx =>
+    def settingWebhook(binding: Http.ServerBinding, attempt: Int = 1): Behavior[Command] = Behaviors.setup[Command] { ctx =>
       case object SetWebhookSuccess extends Command
       case class SetWebhookFailure(exception: Throwable) extends Command
 
@@ -145,9 +145,13 @@ object TelegramBot {
           ctx.log.info("action=set_webhook result=success")
           stashBuffer.unstashAll(ctx, started(binding))
         case SetWebhookFailure(exception) =>
-          ctx.log.error("action=set_webhook result=failure", exception)
-          ctx.log.error("action=start_bot result=failure")
-          unbindingServer(binding, None)
+          if (attempt > 20) {
+            ctx.log.error(exception, "action=set_webhook result=failure attempt={}", attempt)
+            ctx.log.error("action=start_bot result=failure")
+            unbindingServer(binding, None)
+          } else {
+            settingWebhook(binding, attempt = attempt + 1)
+          }
         case otherCommand: Command =>
           stashBuffer.stash(otherCommand)
           Behaviors.same