Dockerized telegram bot

2019-05-18 01:37:37 +02:00
parent 9d30525c8a
commit afe113c2db
17 changed files with 97 additions and 75 deletions
--- a/src/main/resources/application.conf
+++ b/src/main/resources/application.conf
@@ -0,0 +1,18 @@
+akka {
+  loglevel = "INFO"
+
+  extensions = [akka.persistence.Persistence]
+
+  persistence {
+    journal {
+      plugin = "akka.persistence.journal.leveldb"
+      auto-start-journals = ["akka.persistence.journal.leveldb"]
+      leveldb.dir = "journal-check-delivery"
+    }
+
+    snapshot-store {
+      plugin = "akka.persistence.snapshot-store.local"
+      auto-start-snapshot-stores = ["akka.persistence.snapshot-store.local"]
+    }
+  }
+}
--- a/src/main/resources/logback.xml
+++ b/src/main/resources/logback.xml
@@ -0,0 +1,11 @@
+<configuration debug="true" scan="true" >
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%date [%level] %logger: %message%n%xException</pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT"/>
+    </root>
+</configuration>
--- a/src/main/resources/telegram-bot.p12
+++ b/src/main/resources/telegram-bot.p12
--- a/src/main/resources/telegram-bot.pem
+++ b/src/main/resources/telegram-bot.pem
@@ -0,0 +1,21 @@
+-----BEGIN CERTIFICATE-----
+MIIDcTCCAlmgAwIBAgIJAKLMfxW4KRHuMA0GCSqGSIb3DQEBCwUAME8xCzAJBgNV
+BAYTAkNaMQ8wDQYDVQQHDAZQcmFndWUxGjAYBgNVBAoMEVBhdmVsIEthY2hhbG91
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+CgwRUGF2ZWwgS2FjaGFsb3Vza2kxEzARBgNVBAMMCnhlcHBha2EuZXUwggEiMA0G
+CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDWwewslKtWJ7yeYrxDuoh5PS7y5/C/
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+OXFj0c0jNdM1nJMRGr0EvfeMuTAMBgNVHRMEBTADAQH/MA0GCSqGSIb3DQEBCwUA
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+AL1cEctnSDyT5z2el75nTdAgTFcBZQLsVk9/4ZwBRnfunFqfU5e5X9X9z//yt4Gy
+Zq9BrMddQE+qwnOclcTDCc0GnyqKbaPiyYFcaXKhdrsflvoJI9tyLwPgjfXADLDF
+JtjC0gGdbgefDweBUMTF0cpZED9q/J2fKXHurub+3QySvUOvphVFP4dBz2WhdoTe
+v3lkEVp3I/IUv9qegO0B0o6X+Nnml4/b7HV1PArNceWOA6f57fSL2m6eN6xs4ULJ
+kfUMloAr25yvmN/tPwm+8Op5ovot
+-----END CERTIFICATE-----
--- a/src/main/scala/eu/xeppaka/bot/BotUri.scala
+++ b/src/main/scala/eu/xeppaka/bot/BotUri.scala
@@ -0,0 +1,15 @@
+package eu.xeppaka.bot
+
+import akka.http.scaladsl.model.Uri
+
+case class BotUri(botId: String) {
+  private val baseUri = Uri(s"https://api.telegram.org/bot$botId")
+
+  val botUri: Uri = baseUri
+  val getMe: Uri = baseUri.withPath(baseUri.path / "getMe")
+  val setWebhook: Uri = baseUri.withPath(baseUri.path / "setWebhook")
+  val deleteWebhook: Uri = baseUri.withPath(baseUri.path / "deleteWebhook")
+  val getWebhookInfo: Uri = baseUri.withPath(baseUri.path / "getWebhookInfo")
+  val sendMessage: Uri = baseUri.withPath(baseUri.path / "sendMessage")
+  val editMessageReplyMarkup: Uri = baseUri.withPath(baseUri.path / "editMessageReplyMarkup")
+}
--- a/src/main/scala/eu/xeppaka/bot/CheckDeliveryDialog.scala
+++ b/src/main/scala/eu/xeppaka/bot/CheckDeliveryDialog.scala
@@ -0,0 +1,298 @@
+package eu.xeppaka.bot
+
+import akka.actor.typed.scaladsl.adapter._
+import akka.actor.typed.scaladsl.{Behaviors, StashBuffer}
+import akka.actor.typed.{ActorRef, Behavior, DispatcherSelector, SupervisorStrategy}
+import akka.http.scaladsl.Http
+import akka.http.scaladsl.model._
+import akka.stream.ActorMaterializer
+import akka.stream.scaladsl.{Sink, Source}
+import akka.util.{ByteString, Timeout}
+import eu.xeppaka.bot.TelegramEntities._
+import eu.xeppaka.bot.TelegramEntitiesDerivations._
+import io.circe.Printer
+
+import scala.concurrent.ExecutionContext
+import scala.concurrent.duration._
+import scala.util.{Failure, Success}
+
+object CheckDeliveryDialog {
+  sealed trait Command
+  sealed trait CommandResult
+  sealed trait DialogCommand extends Command
+
+  case class ProcessMessage(msg: Message, replyTo: ActorRef[CommandResult]) extends Command
+  case object ProcessMessageSuccess extends CommandResult
+  case class ProcessMessageFailure(exception: Throwable) extends CommandResult
+
+  case object AddParcel extends DialogCommand
+  case object RemoveParcel extends DialogCommand
+  case object ListParcels extends DialogCommand
+  case object Help extends DialogCommand
+
+  object DialogCommand {
+    def parse(text: String): DialogCommand = text match {
+      case "/add" => AddParcel
+      case "/remove" => RemoveParcel
+      case "/list" => ListParcels
+      case "/help" => Help
+      case "/start" => Help
+      case _ => Help
+    }
+  }
+
+  // json printer
+  private val printer = Printer.noSpaces.copy(dropNullValues = true)
+  // internal messages
+  private case class DeliveryStateChanged(state: String) extends Command
+  private val helpMessage =
+    """
+      |Supported commands:
+      |/add - add parcel to a list of watched parcels
+      |/list - list watched parcels
+      |/remove - remove parcel from a watching list
+    """.stripMargin
+  private val commandsKeyboard = Some(ReplyKeyboardMarkup(
+    Seq(Seq(KeyboardButton("/add"), KeyboardButton("/list"), KeyboardButton("/remove"))),
+    resize_keyboard = Some(true),
+    one_time_keyboard = Some(true)
+  ))
+
+  def behavior(chatId: Long, botUri: BotUri): Behavior[Command] = Behaviors.setup[Command] { ctx =>
+    implicit val materializer: ActorMaterializer = ActorMaterializer()(ctx.system.toUntyped)
+    implicit val executionContext: ExecutionContext = ctx.system.dispatchers.lookup(DispatcherSelector.default())
+    val http = Http()(ctx.system.toUntyped)
+    val stashBuffer = StashBuffer[Command](100)
+    val deliveryStateAdapter: ActorRef[CzechPostDeliveryCheck.DeliveryStateChanged] = ctx.messageAdapter(stateChanged => DeliveryStateChanged(stateChanged.state))
+    val czechPostDeliveryCheck = ctx.spawnAnonymous(Behaviors.supervise(CzechPostDeliveryCheck.behavior(chatId.toString, deliveryStateAdapter)).onFailure(SupervisorStrategy.restart))
+
+    def initial: Behavior[Command] = sendMessage(SendMessage(chatId, "Waiting for a command...", reply_markup = commandsKeyboard), waitCommand, initial)
+
+    def waitCommand: Behavior[Command] = Behaviors.receiveMessage {
+      case ProcessMessage(msg, replyTo) =>
+        val command = msg.text.map(text => DialogCommand.parse(text))
+        replyTo ! ProcessMessageSuccess
+
+        if (command.isDefined) {
+          ctx.self ! command.get
+          Behaviors.same
+        } else {
+          val message = SendMessage(chatId, "This command is unsupported.")
+          sendMessage(message, initial, initial)
+        }
+      case AddParcel =>
+        val message = SendMessage(chatId, "Please enter a parcel ID.")
+        sendMessage(message, waitParcelId(parcelId => addParcel(parcelId)), initial)
+      case RemoveParcel =>
+        removeParcel(initial, initial)
+      case ListParcels =>
+        listParcels
+      case Help =>
+        val message = SendMessage(chatId, helpMessage)
+        sendMessage(message, initial, initial)
+      case DeliveryStateChanged(state) =>
+        val message = SendMessage(chatId, state, Some("Markdown"))
+        sendMessage(message, initial, initial)
+      case _ =>
+        Behaviors.unhandled
+    }
+
+    def addParcel(parcelId: String): Behavior[Command] = Behaviors.setup { ctx =>
+      case object AddParcelSuccess extends Command
+      case class AddParcelFailure(exception: Throwable) extends Command
+      implicit val timeout: Timeout = 5.seconds
+
+      ctx.ask[CzechPostDeliveryCheck.Command, CzechPostDeliveryCheck.CommandResult](czechPostDeliveryCheck)(ref => CzechPostDeliveryCheck.AddParcel(parcelId, ref)) {
+        case Success(CzechPostDeliveryCheck.CommandResultSuccess) => AddParcelSuccess
+        case Success(CzechPostDeliveryCheck.CommandResultFailure(exception)) => AddParcelFailure(exception)
+        case Failure(exception) => AddParcelFailure(exception)
+      }
+
+      Behaviors.receiveMessage {
+        case AddParcelSuccess =>
+          val message = SendMessage(chatId, s"Parcel $parcelId was added to the watch list.")
+          sendMessage(message, initial, initial)
+        case AddParcelFailure(exception) =>
+          exception match {
+            case CzechPostDeliveryCheck.DuplicateParcelId(_) =>
+              val message = SendMessage(chatId, s"Parcel $parcelId is in the watch list already.")
+              sendMessage(message, initial, initial)
+            case _ =>
+              ctx.log.error(exception, "action=add_parcel result=failure")
+              val message = SendMessage(chatId, s"Adding parcel failed. Please try again.")
+              sendMessage(message, initial, initial)
+          }
+        case otherMessage =>
+          stashBuffer.stash(otherMessage)
+          Behaviors.same
+      }
+    }
+
+    def listParcels: Behavior[Command] = Behaviors.setup { ctx =>
+      case class ListParcelsSuccess(parcelsList: Set[String]) extends Command
+      case class ListParcelsFailure(exception: Throwable) extends Command
+      implicit val timeout: Timeout = 5.seconds
+
+      ctx.ask[CzechPostDeliveryCheck.Command, CzechPostDeliveryCheck.ListParcelsResult](czechPostDeliveryCheck)(ref => CzechPostDeliveryCheck.ListParcels(ref)) {
+        case Success(CzechPostDeliveryCheck.ListParcelsResult(parcelsList)) => ListParcelsSuccess(parcelsList)
+        case Failure(exception) => ListParcelsFailure(exception)
+      }
+
+      Behaviors.receiveMessage {
+        case ListParcelsSuccess(parcelsList) =>
+          val messageText = "*List of your watched parcels:*\n" + (if (parcelsList.nonEmpty) parcelsList.toSeq.sorted.mkString("\n") else "(empty)")
+          val message = SendMessage(chatId, messageText, Some("Markdown"))
+          sendMessage(message, initial, initial)
+        case ListParcelsFailure(exception) =>
+          ctx.log.error(exception, "action=list_parcels result=failure chat_id={}", chatId)
+          val message = SendMessage(chatId, "Failed to get a list of your watched parcels. Please try again later.")
+          sendMessage(message, initial, initial)
+        case otherMessage =>
+          stashBuffer.stash(otherMessage)
+          Behaviors.same
+      }
+    }
+
+    def removeParcel(onSuccess: => Behavior[Command], onFailure: => Behavior[Command]): Behavior[Command] =
+      Behaviors.setup { ctx =>
+        case class ListParcelsSuccess(parcelsList: Set[String]) extends Command
+        case class ListParcelsFailure(exception: Throwable) extends Command
+        implicit val timeout: Timeout = 5.seconds
+
+        ctx.ask[CzechPostDeliveryCheck.Command, CzechPostDeliveryCheck.ListParcelsResult](czechPostDeliveryCheck)(ref => CzechPostDeliveryCheck.ListParcels(ref)) {
+          case Success(CzechPostDeliveryCheck.ListParcelsResult(parcelsList)) => ListParcelsSuccess(parcelsList)
+          case Failure(exception) => ListParcelsFailure(exception)
+        }
+
+        Behaviors.receiveMessage {
+          case ListParcelsSuccess(parcelsList) =>
+            if (parcelsList.nonEmpty) {
+              val keyboardButtons = parcelsList.toSeq.sorted.grouped(3).map(_.map(id => KeyboardButton(id))).toSeq
+              val markup = ReplyKeyboardMarkup(keyboard = keyboardButtons, resize_keyboard = Some(true), one_time_keyboard = Some(true))
+              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.")
+              sendMessage(message, onSuccess, onFailure)
+            }
+          case ListParcelsFailure(exception) =>
+            ctx.log.error(exception, "action=list_parcels result=failure chat_id={}", chatId)
+            val message = SendMessage(chatId, "Failed to get a list of your watched parcels. Please try again later.")
+            sendMessage(message, initial, initial)
+          case otherMessage =>
+            stashBuffer.stash(otherMessage)
+            Behaviors.same
+        }
+      }
+
+    def removeParcelId(parcelId: String): Behavior[Command] = Behaviors.setup { ctx =>
+      case object RemoveParcelSuccess extends Command
+      case class RemoveParcelFailure(exception: Throwable) extends Command
+      implicit val timeout: Timeout = 5.seconds
+
+      ctx.ask[CzechPostDeliveryCheck.Command, CzechPostDeliveryCheck.CommandResult](czechPostDeliveryCheck)(ref => CzechPostDeliveryCheck.RemoveParcel(parcelId, ref)) {
+        case Success(CzechPostDeliveryCheck.CommandResultSuccess) => RemoveParcelSuccess
+        case Success(CzechPostDeliveryCheck.CommandResultFailure(exception)) => RemoveParcelFailure(exception)
+        case Failure(exception) => RemoveParcelFailure(exception)
+      }
+
+      Behaviors.receiveMessage {
+        case RemoveParcelSuccess =>
+          val message = SendMessage(chatId, s"Parcel $parcelId was removed from the watch list.")
+          sendMessage(message, initial, initial)
+        case RemoveParcelFailure(exception) =>
+          exception match {
+            case CzechPostDeliveryCheck.ParcelIdNotFound(_) =>
+              val message = SendMessage(chatId, s"Parcel $parcelId is not found in the list of the watched parcels.")
+              sendMessage(message, initial, initial)
+            case _ =>
+              ctx.log.error(exception, "action=add_parcel result=failure")
+              val message = SendMessage(chatId, s"Remove of the parcel failed. Please try again.")
+              sendMessage(message, initial, initial)
+          }
+        case otherMessage =>
+          stashBuffer.stash(otherMessage)
+          Behaviors.same
+      }
+    }
+
+    //    def selectPostType(onFinish: PostType => Behavior[Command]): Behavior[Command] = Behaviors.receiveMessage {
+    //
+    //      case ProcessMessage(msg, replyTo) =>
+    //        val button1 = KeyboardButton("button1")
+    //        val button2 = KeyboardButton("button2")
+    //        val keyboard = ReplyKeyboardMarkup(Seq(Seq(button1, button2)))
+    //        val message = SendMessage(chatId, "Please enter parcel ID.", reply_markup = Some(keyboard))
+    //        sendMessage(message, waitParcelId(parcelId => addParcel(parcelId)), initial)
+    //    }
+
+    def waitParcelId(onFinish: String => Behavior[Command]): Behavior[Command] = Behaviors.receiveMessage {
+      case ProcessMessage(msg, replyTo) =>
+        if (msg.text.isDefined) {
+          val parcelId = msg.text.get
+          replyTo ! ProcessMessageSuccess
+          onFinish(parcelId)
+        } else {
+          replyTo ! ProcessMessageSuccess
+          waitParcelId(onFinish)
+        }
+      case otherMsg =>
+        stashBuffer.stash(otherMsg)
+        Behaviors.same
+    }
+
+    def sendMessage(message: SendMessage, onSuccess: => Behavior[Command], onFailure: => Behavior[Command], attempt: Int = 0): Behavior[Command] = Behaviors.setup[Command] { ctx =>
+      import io.circe.generic.auto._
+      import io.circe.syntax._
+
+      case object SendMessageSuccess extends Command
+      case class SendMessageFailure(exception: Throwable) extends Command
+
+      val json = printer.pretty(message.asJson)
+      val request = HttpRequest(HttpMethods.POST, uri = botUri.sendMessage, entity = HttpEntity.Strict(ContentTypes.`application/json`, ByteString(json)))
+
+      ctx.log.debug("action=send_message status=started chat_id={} message={}", chatId, json)
+
+      Source
+        .single(request)
+        .initialDelay(2.seconds * attempt)
+        .mapAsync(1) { request =>
+          http
+            .singleRequest(request)
+            .transform {
+              case Success(response) =>
+                if (response.status.isSuccess()) {
+                  Success(SendMessageSuccess)
+                } else {
+                  Success(SendMessageFailure(new RuntimeException(s"Error while sending message. HTTP status: ${response.status}.")))
+                }
+              case Failure(exception) =>
+                ctx.log.error(exception, "action=send_message status=finished result=failure chat_id={}", chatId)
+                Success(SendMessageFailure(exception))
+            }
+        }
+        .to(Sink.foreach(ctx.self ! _))
+        .run()
+
+      Behaviors.receiveMessage {
+        case SendMessageSuccess =>
+          ctx.log.debug("action=send_message status=finished result=success chat_id={}", chatId)
+          stashBuffer.unstashAll(ctx, onSuccess)
+        case SendMessageFailure(exception) =>
+          ctx.log.error(exception, "action=send_message status=finished result=failure chat_id={} attempt={}", chatId, attempt)
+
+          if (attempt >= 5) {
+            ctx.log.error(exception, "action=send_message result=failure message=attempts threshold exceeded")
+            stashBuffer.unstashAll(ctx, onFailure)
+          } else {
+            sendMessage(message, onSuccess, onFailure, attempt + 1)
+          }
+        case otherMsg =>
+          stashBuffer.stash(otherMsg)
+          Behaviors.same
+      }
+    }
+
+    initial
+  }
+}
--- a/src/main/scala/eu/xeppaka/bot/CzechPostDeliveryCheck.scala
+++ b/src/main/scala/eu/xeppaka/bot/CzechPostDeliveryCheck.scala
@@ -0,0 +1,250 @@
+package eu.xeppaka.bot
+
+import java.security.cert.X509Certificate
+import java.text.SimpleDateFormat
+
+import akka.actor.ActorSystem
+import akka.actor.typed.scaladsl.adapter._
+import akka.actor.typed.scaladsl.{Behaviors, TimerScheduler}
+import akka.actor.typed.{ActorRef, Behavior, DispatcherSelector}
+import akka.http.scaladsl.UseHttp2.Negotiated
+import akka.http.scaladsl.model._
+import akka.http.scaladsl.model.headers.{Accept, `User-Agent`}
+import akka.http.scaladsl.settings.{ClientConnectionSettings, ConnectionPoolSettings}
+import akka.http.scaladsl.unmarshalling.Unmarshal
+import akka.http.scaladsl.{Http, HttpsConnectionContext}
+import akka.persistence.typed.PersistenceId
+import akka.persistence.typed.scaladsl.EventSourcedBehavior.{CommandHandler, EventHandler}
+import akka.persistence.typed.scaladsl.{Effect, EventSourcedBehavior}
+import akka.stream.ActorMaterializer
+import com.typesafe.sslconfig.akka.AkkaSSLConfig
+import de.heikoseeberger.akkahttpcirce.FailFastCirceSupport._
+import io.circe.generic.auto._
+import javax.net.ssl.{KeyManager, SSLContext, X509TrustManager}
+
+import scala.collection.immutable
+import scala.concurrent.ExecutionContextExecutor
+import scala.concurrent.duration._
+import scala.util.{Failure, Success}
+
+object Entities {
+
+  case class Attributes(
+    parcelType: String,
+    weight: Double,
+    currency: String,
+  )
+
+  case class State(
+    id: String,
+    date: String,
+    text: String,
+    postcode: Option[String],
+    postoffice: Option[String],
+    idIcon: Option[Int],
+    publicAccess: Int,
+    latitude: Option[Double],
+    longitude: Option[Double],
+    timeDeliveryAttempt: Option[String]
+  )
+
+  case class States(state: Seq[State])
+
+  case class ParcelHistory(id: String, attributes: Attributes, states: States)
+}
+
+object CzechPostDeliveryCheck {
+  private val czechPostDateFormat = new SimpleDateFormat("yyyy-MM-dd")
+  private val printDateFormat = new SimpleDateFormat("dd-MM-yyyy")
+
+  sealed trait Command
+  sealed trait CommandResult
+  sealed trait Event
+  case class ParcelState(attributes: Option[Entities.Attributes] = None, states: Set[Entities.State] = Set.empty) {
+    def prettyPrint(parcelId: String): String = {
+      val statesString = states
+        .toSeq
+        .sortBy(state => czechPostDateFormat.parse(state.date))
+        .map(state => s"${printDateFormat.format(czechPostDateFormat.parse(state.date))} - ${state.text}\n===========================\n")
+        .mkString
+
+      s"""|*New state(s) of the parcel $parcelId:*
+          |===========================
+          |$statesString""".stripMargin
+    }
+  }
+  case class State(parcelStates: Map[String, ParcelState] = Map.empty)
+
+  case class AddParcel(parcelId: String, replyTo: ActorRef[CommandResult]) extends Command
+  case class RemoveParcel(parcelId: String, replyTo: ActorRef[CommandResult]) extends Command
+  case class ListParcels(replyTo: ActorRef[ListParcelsResult]) extends Command
+  case class ListParcelsResult(parcelsList: Set[String])
+
+  case object CommandResultSuccess extends CommandResult
+  case class CommandResultFailure(exception: Throwable) extends CommandResult
+
+  case class ParcelIdNotFound(parcelId: String) extends Exception
+  case class DuplicateParcelId(parcelId: String) extends Exception
+
+  // internal commands
+  private case object CheckParcels extends Command
+  private case class ParcelHistoryRetrieved(parcelHistory: Entities.ParcelHistory) extends Command
+  case class DeliveryStateChanged(state: String)
+
+  case class ParcelAdded(parcelId: String) extends Event
+  case class ParcelRemoved(parcelId: String) extends Event
+  case class ParcelHistoryStateAdded(parcelId: String, state: Entities.State) extends Event
+  case class ParcelAttributesChanged(parcelId: String, attributes: Entities.Attributes) extends Event
+
+  private val trustfulSslContext: SSLContext = {
+    object NoCheckX509TrustManager extends X509TrustManager {
+      override def checkClientTrusted(chain: Array[X509Certificate], authType: String): Unit = ()
+      override def checkServerTrusted(chain: Array[X509Certificate], authType: String): Unit = ()
+      override def getAcceptedIssuers: Array[X509Certificate] = Array[X509Certificate]()
+    }
+
+    val context = SSLContext.getInstance("TLS")
+    context.init(Array[KeyManager](), Array(NoCheckX509TrustManager), null)
+    context
+  }
+
+  def behavior(chatId: String, stateReporter: ActorRef[DeliveryStateChanged]): Behavior[Command] = Behaviors.setup[Command] { ctx =>
+    Behaviors.withTimers(scheduler => checkParcel(chatId, stateReporter, scheduler))
+  }
+
+  private def checkParcel(chatId: String, stateReporter: ActorRef[DeliveryStateChanged], scheduler: TimerScheduler[Command]): Behavior[Command] = Behaviors.setup { ctx =>
+    implicit val actorSystem: ActorSystem = ctx.system.toUntyped
+    implicit val executionContext: ExecutionContextExecutor = ctx.system.dispatchers.lookup(DispatcherSelector.default())
+    implicit val materializer: ActorMaterializer = ActorMaterializer()
+    val http = Http()
+    val badSslConfig = AkkaSSLConfig().mapSettings(s => s.withLoose(s.loose
+      .withAcceptAnyCertificate(true)
+      .withDisableHostnameVerification(true)))
+    val originalCtx = http.createClientHttpsContext(badSslConfig)
+    val sslContext = new HttpsConnectionContext(
+      trustfulSslContext,
+      originalCtx.sslConfig,
+      originalCtx.enabledCipherSuites,
+      originalCtx.enabledProtocols,
+      originalCtx.clientAuth,
+      originalCtx.sslParameters,
+      Negotiated
+    )
+    val clientConnectionSettings = ClientConnectionSettings(actorSystem).withUserAgentHeader(Some(`User-Agent`("Mozilla/5.0 (X11; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0")))
+    val connectionSettings = ConnectionPoolSettings(actorSystem).withConnectionSettings(clientConnectionSettings)
+
+    scheduler.startPeriodicTimer("check-delivery-state", CheckParcels, 5.minutes)
+
+    val commandHandler: CommandHandler[Command, Event, State] = (state, cmd) => {
+      cmd match {
+        case AddParcel(parcelId, replyTo) =>
+          val parcelIdUpper = parcelId.toUpperCase
+          if (state.parcelStates.keySet.contains(parcelIdUpper)) {
+            Effect
+              .none
+              .thenRun(_ => replyTo ! CommandResultFailure(DuplicateParcelId(parcelIdUpper)))
+          } else {
+            Effect
+              .persist(ParcelAdded(parcelIdUpper))
+              .thenRun(_ => {
+                replyTo ! CommandResultSuccess
+                ctx.self ! CheckParcels
+              })
+          }
+        case RemoveParcel(parcelId, replyTo) =>
+          val parcelIdUpper = parcelId.toUpperCase
+          if (state.parcelStates.contains(parcelIdUpper)) {
+            Effect
+              .persist(ParcelRemoved(parcelIdUpper))
+              .thenRun(_ => replyTo ! CommandResultSuccess)
+          } else {
+            Effect
+              .none
+              .thenRun(_ => replyTo ! CommandResultFailure(ParcelIdNotFound(parcelIdUpper)))
+          }
+
+        case ListParcels(replyTo) =>
+          Effect.none
+            .thenRun { state =>
+              val parcelsList = state.parcelStates.keySet
+              replyTo ! ListParcelsResult(parcelsList)
+            }
+
+        case CheckParcels =>
+          Effect
+            .none
+            .thenRun { _ =>
+              ctx.log.info("action=check_parcel_state chat_id={}", chatId)
+              val parcelIds = state.parcelStates.keys.grouped(10).map(ids => ids.foldLeft("")((acc, id) => if (acc.isEmpty) id else s"$acc;$id"))
+
+              for (ids <- parcelIds) {
+                val checkUri = Uri(s"https://b2c.cpost.cz/services/ParcelHistory/getDataAsJson?idParcel=$ids&language=cz")
+                val request = HttpRequest(uri = checkUri, headers = immutable.Seq(Accept(MediaTypes.`application/json`)))
+
+                ctx.log.info("action=check_parcel_state chat_id={} check_uri={}", chatId, checkUri)
+
+                http
+                  .singleRequest(request, connectionContext = sslContext, settings = connectionSettings)
+                  .transform {
+                    case Success(response) => if (response.status.isSuccess()) Success(response) else Failure(new Exception(s"Check parcel returned HTTP status: ${response.status.value}."))
+                    case response: Failure[HttpResponse] => response
+                  }
+                  .flatMap(response => Unmarshal(response).to[Array[Entities.ParcelHistory]])
+                  .andThen {
+                    case Success(parcelHistories) =>
+                      parcelHistories.foreach(parcelHistory => ctx.self ! ParcelHistoryRetrieved(parcelHistory))
+                    case Failure(exception) =>
+                      ctx.log.error(exception, "Error checking parcel history.")
+                  }
+                  .andThen {
+                    case Success(_) => ctx.log.info("action=check_parcel_state result=success chat_id={} check_uri={}", chatId, checkUri)
+                    case Failure(exception) => ctx.log.error(exception, "action=check_parcel_state result=failure chat_id={} check_uri={}", chatId, checkUri)
+                  }
+              }
+            }
+        case ParcelHistoryRetrieved(parcelHistory) =>
+          val parcelId = parcelHistory.id
+          val parcelState = state.parcelStates(parcelId)
+          val attributesChangedEvent = (if (parcelState.attributes.isEmpty)
+                                          Some(parcelHistory.attributes)
+                                        else
+                                          parcelState.attributes
+                                            .flatMap(oldAttributes => if (oldAttributes != parcelHistory.attributes) Some(parcelHistory.attributes) else None))
+            .map(attributes => ParcelAttributesChanged(parcelId, attributes)).to[collection.immutable.Seq]
+
+          val newStates = parcelHistory.states.state.toSet -- parcelState.states
+          val stateEvents: Seq[Event] = newStates.map(state => ParcelHistoryStateAdded(parcelId, state)).to[collection.immutable.Seq]
+
+          Effect
+            .persist(attributesChangedEvent ++ stateEvents)
+            .thenRun(_ => {
+              if (newStates.nonEmpty) {
+                stateReporter ! DeliveryStateChanged(ParcelState(None, newStates).prettyPrint(parcelId))
+              }
+            })
+      }
+    }
+
+    val eventHandler: EventHandler[State, Event] = (state, evt) => {
+      evt match {
+        case ParcelAdded(parcelId) => state.copy(parcelStates = state.parcelStates + (parcelId -> ParcelState()))
+        case ParcelRemoved(parcelId) => state.copy(parcelStates = state.parcelStates - parcelId)
+        case ParcelHistoryStateAdded(parcelId, newState) =>
+          val parcelState = state.parcelStates(parcelId)
+          val newParcelState = parcelState.copy(states = parcelState.states + newState)
+          state.copy(parcelStates = state.parcelStates.updated(parcelId, newParcelState))
+        case ParcelAttributesChanged(parcelId, newAttributes) =>
+          val parcelState = state.parcelStates(parcelId)
+          val newParcelState = parcelState.copy(attributes = Some(newAttributes))
+          state.copy(parcelStates = state.parcelStates.updated(parcelId, newParcelState))
+      }
+    }
+
+    EventSourcedBehavior[Command, Event, State](
+      persistenceId = PersistenceId(s"$chatId-czechpost"),
+      emptyState = State(),
+      commandHandler = commandHandler,
+      eventHandler = eventHandler
+    )
+  }
+}
--- a/src/main/scala/eu/xeppaka/bot/DialogManager.scala
+++ b/src/main/scala/eu/xeppaka/bot/DialogManager.scala
@@ -0,0 +1,100 @@
+package eu.xeppaka.bot
+
+import akka.actor.typed.scaladsl.Behaviors
+import akka.actor.typed.{ActorRef, Behavior, SupervisorStrategy}
+import akka.persistence.typed.PersistenceId
+import akka.persistence.typed.scaladsl.EventSourcedBehavior.{CommandHandler, EventHandler}
+import akka.persistence.typed.scaladsl.{Effect, EffectBuilder, EventSourcedBehavior}
+import akka.util.Timeout
+import eu.xeppaka.bot.CheckDeliveryDialog.{ProcessMessageFailure, ProcessMessageSuccess}
+import eu.xeppaka.bot.TelegramEntities.Update
+
+import scala.concurrent.duration._
+import scala.util.{Failure, Success}
+
+object DialogManager {
+  sealed trait Command
+  sealed trait CommandResult
+
+  case class ProcessUpdate(update: Update, replyTo: ActorRef[CommandResult]) extends Command
+  case object ProcessUpdateSuccess extends CommandResult
+  case class ProcessUpdateFailure(exception: Throwable) extends CommandResult
+
+  // internal messages
+  private case class DialogResponseSuccess(dialogId: Long, replyTo: ActorRef[CommandResult]) extends Command
+  private case class DialogResponseFailure(dialogId: Long, exception: Throwable, replyTo: ActorRef[CommandResult]) extends Command
+
+  sealed trait Event
+  private case class DialogAdded(chatId: Long) extends Event
+
+  case class State(dialogs: Map[Long, ActorRef[CheckDeliveryDialog.Command]] = Map.empty)
+
+  def behavior(botUri: BotUri): Behavior[Command] = Behaviors.setup[Command] { ctx =>
+    val commandHandler: CommandHandler[Command, Event, State] = (state, cmd) => {
+      cmd match {
+        case ProcessUpdate(update, replyTo) =>
+          if (update.message.isDefined) {
+            val chatId = update.message.get.chat.id
+
+            val effect: EffectBuilder[Event, State] = if (state.dialogs.contains(chatId)) {
+              Effect.none
+            } else {
+              Effect.persist(DialogAdded(chatId))
+            }
+
+            effect
+              .thenRun(_ => ctx.log.debug("action=process_update chat_id={} message={}", chatId, update.message.get))
+              .thenRun { state =>
+                val msg = update.message.get
+                val dialogActor = state.dialogs(chatId)
+
+                ctx.log.info("action=ask_dialog id={}", chatId)
+
+                implicit val timeout: Timeout = 20.seconds
+                ctx.ask(dialogActor)((CheckDeliveryDialog.ProcessMessage.apply _).curried(msg)) {
+                  case Success(ProcessMessageSuccess) => DialogResponseSuccess(chatId, replyTo)
+                  case Success(ProcessMessageFailure(exception)) => DialogResponseFailure(chatId, exception, replyTo)
+                  case Failure(exception) => DialogResponseFailure(chatId, exception, replyTo)
+                }
+            }
+          } else {
+            Effect
+              .none
+              .thenRun { _ =>
+                ctx.log.debug("action=process_update result=success message=update message is empty")
+              }
+          }
+
+        case DialogResponseSuccess(dialogId, replyTo) =>
+          Effect
+            .none
+            .thenRun { _ =>
+              ctx.log.info("action=ask_dialog id={} result=success", dialogId)
+              replyTo ! ProcessUpdateSuccess
+            }
+        case DialogResponseFailure(dialogId, exception, replyTo) =>
+          Effect
+              .none
+              .thenRun { _ =>
+                ctx.log.error(exception, "action=ask_dialog id={} result=failure", dialogId)
+                replyTo ! ProcessUpdateFailure(exception)
+              }
+      }
+    }
+
+    val eventHandler: EventHandler[State, Event] = (state, evt) => {
+      evt match {
+        case DialogAdded(chatId) =>
+          val dialogActor = ctx.spawn(Behaviors.supervise(CheckDeliveryDialog.behavior(chatId, botUri)).onFailure(SupervisorStrategy.restart), s"delivery-check-$chatId")
+          state.copy(dialogs = state.dialogs.updated(chatId, dialogActor))
+      }
+    }
+
+    EventSourcedBehavior(
+      persistenceId = PersistenceId("dialog-manager"),
+      emptyState = State(),
+      commandHandler = commandHandler,
+      eventHandler = eventHandler
+    )
+  }
+}
--- a/src/main/scala/eu/xeppaka/bot/Main.scala
+++ b/src/main/scala/eu/xeppaka/bot/Main.scala
@@ -0,0 +1,44 @@
+package eu.xeppaka.bot
+
+import java.nio.file.Paths
+
+import akka.actor.Scheduler
+import akka.actor.typed.scaladsl.AskPattern._
+import akka.actor.typed.scaladsl.Behaviors
+import akka.actor.typed.scaladsl.adapter._
+import akka.actor.typed.{ActorSystem, DispatcherSelector, SupervisorStrategy}
+import akka.http.scaladsl.Http
+import akka.util.Timeout
+import akka.{Done, actor}
+
+import scala.concurrent.duration._
+import scala.concurrent.{Await, ExecutionContextExecutor, Future}
+import scala.io.StdIn
+
+object Main {
+  def main(args: Array[String]): Unit = {
+    val botId = System.getProperty("botId", "570855144:AAEv7b817cuq2JJI9f2kG5B9G3zW1x-btz4")
+    val localPort = 8443
+    val hookDomain = System.getProperty("hookDomain", "xeppaka.eu")
+    val hookPort = System.getProperty("hookPort", "8443").toInt
+    val useHttpsServer = System.getProperty("useHttpsServer", "true").toBoolean
+
+    val botBehavior = Behaviors.supervise(TelegramBot.behavior(botId, "0.0.0.0", localPort, hookDomain, hookPort, useHttpsServer)).onFailure(SupervisorStrategy.restart)
+    val telegramBot = ActorSystem(botBehavior, "telegram-bot-delivery")
+//    implicit val actorSystem: actor.ActorSystem = telegramBot.toUntyped
+//    implicit val executionContext: ExecutionContextExecutor = telegramBot.dispatchers.lookup(DispatcherSelector.default())
+//    implicit val scheduler: Scheduler = telegramBot.scheduler
+//    implicit val timeout: Timeout = 10.seconds
+
+//    println("Press enter to finish bot...")
+//    StdIn.readLine()
+//
+//    val stopFuture: Future[Done] = telegramBot ? (ref => TelegramBot.Stop(ref))
+//
+//    val terminateFuture = stopFuture
+//      .andThen { case _ => Http().shutdownAllConnectionPools() }
+//      .andThen { case _ => telegramBot.terminate() }
+//
+//    Await.ready(terminateFuture, 20.seconds)
+  }
+}
--- a/src/main/scala/eu/xeppaka/bot/PostType.scala
+++ b/src/main/scala/eu/xeppaka/bot/PostType.scala
@@ -0,0 +1,8 @@
+package eu.xeppaka.bot
+
+sealed trait PostType
+
+object PostTypes {
+  case object CzechPost extends PostType
+  case object PplPost extends PostType
+}
--- a/src/main/scala/eu/xeppaka/bot/TelegramBot.scala
+++ b/src/main/scala/eu/xeppaka/bot/TelegramBot.scala
@@ -0,0 +1,251 @@
+package eu.xeppaka.bot
+
+import java.io.InputStream
+import java.nio.file.Path
+import java.security.{KeyStore, SecureRandom}
+import java.util.UUID
+
+import akka.Done
+import akka.actor.{ActorSystem, Scheduler}
+import akka.actor.typed.scaladsl.adapter._
+import akka.actor.typed.scaladsl.{Behaviors, StashBuffer}
+import akka.actor.typed.{ActorRef, Behavior, DispatcherSelector, SupervisorStrategy}
+import akka.http.scaladsl.marshalling.Marshal
+import akka.http.scaladsl.model._
+import akka.http.scaladsl.server.Directives.{as, complete, entity, extractLog, onComplete, path, post}
+import akka.http.scaladsl.server.Route
+import akka.http.scaladsl.{ConnectionContext, Http, HttpExt, HttpsConnectionContext}
+import akka.stream.ActorMaterializer
+import akka.util.{ByteString, Timeout}
+import eu.xeppaka.bot.TelegramEntities._
+import javax.net.ssl.{KeyManagerFactory, SSLContext, TrustManagerFactory}
+
+import scala.collection.immutable
+import scala.concurrent.{ExecutionContextExecutor, Future}
+import scala.concurrent.duration._
+import scala.io.Source
+import scala.util.{Failure, Success}
+
+object TelegramBot {
+  sealed trait Command
+  sealed trait CommandResult
+  sealed trait StopResult extends CommandResult
+
+  case class Stop(replyTo: ActorRef[Done]) extends Command
+  case object GetBotInfo
+  case object GetWebhookInfo
+
+  def behavior(botId: String, interface: String, localPort: Int, hookDomain: String, hookPort: Int, useHttpsServer: Boolean = true): Behavior[Command] = Behaviors.setup[Command] { ctx =>
+    ctx.log.info("action=start_bot")
+
+    implicit val untypedSystem: ActorSystem = ctx.system.toUntyped
+    implicit val actorMaterializer: ActorMaterializer = ActorMaterializer()
+    implicit val executionContextExecutor: ExecutionContextExecutor = ctx.system.dispatchers.lookup(DispatcherSelector.default())
+
+    val botUri = BotUri(botId)
+    val http: HttpExt = Http()
+    val hookId = UUID.randomUUID().toString
+    val webhookUri = Uri(s"https://$hookDomain:$hookPort/$hookId")
+    val httpsContext = if (useHttpsServer) Some(createHttpsConnectionContext) else None
+    val stashBuffer = StashBuffer[Command](10)
+    val dialogManager = ctx.spawnAnonymous(Behaviors.supervise(DialogManager.behavior(botUri)).onFailure(SupervisorStrategy.restart))
+    val routes = botRoutes(hookId, dialogManager)(untypedSystem.scheduler)
+
+    def bindingServer: Behavior[Command] = Behaviors.setup[Command] { ctx =>
+      case class BindingSuccess(binding: Http.ServerBinding) extends Command
+      case class BindingFailure(exception: Throwable) extends Command
+
+      ctx.log.info("action=bind_server interface={} port={}", interface, localPort)
+
+      http
+        .bindAndHandle(routes, interface, localPort, httpsContext.getOrElse(http.defaultServerHttpContext))
+        .onComplete {
+          case Success(binding) => ctx.self ! BindingSuccess(binding)
+          case Failure(exception) => ctx.self ! BindingFailure(exception)
+        }
+
+      Behaviors.receiveMessage[Command] {
+        case BindingSuccess(binding) =>
+          ctx.log.info("action=bind_server result=success")
+          settingWebhook(binding)
+        case BindingFailure(exception) =>
+          ctx.log.error("action=bind_server result=failure", exception)
+          ctx.log.error("action=start_bot result=failure")
+          Behaviors.stopped
+        case otherCommand: Command =>
+          stashBuffer.stash(otherCommand)
+          Behaviors.same
+      }
+    }
+
+    def unbindingServer(binding: Http.ServerBinding, replyTo: Option[ActorRef[Done]]): Behavior[Command] = Behaviors.setup[Command] { ctx =>
+      case object UnbindingSuccess extends Command
+      case class UnbindingFailure(exception: Throwable) extends Command
+
+      ctx.log.info("action=unbind_server interface={} port={}", interface, localPort)
+
+      binding
+        .unbind()
+        .onComplete {
+          case Success(Done) => ctx.self ! UnbindingSuccess
+          case Failure(exception) => ctx.self ! UnbindingFailure(exception)
+        }
+
+      Behaviors.receiveMessage[Command] {
+        case UnbindingSuccess =>
+          ctx.log.info("action=unbind_server result=success")
+          replyTo.foreach(_ ! Done)
+          Behaviors.stopped
+        case UnbindingFailure(exception) =>
+          ctx.log.error("action=unbind_server result=failure", exception)
+          replyTo.foreach(_ ! Done)
+          Behaviors.stopped
+        case _ => Behaviors.unhandled
+      }
+    }
+
+    def settingWebhook(binding: Http.ServerBinding): Behavior[Command] = Behaviors.setup[Command] { ctx =>
+      case object SetWebhookSuccess extends Command
+      case class SetWebhookFailure(exception: Throwable) extends Command
+
+      ctx.log.info("action=set_webhook url={} webhook={}", botUri.setWebhook, webhookUri)
+
+      implicit val executionContextExecutor: ExecutionContextExecutor = ctx.system.dispatchers.lookup(DispatcherSelector.default())
+
+      val urlEntity = HttpEntity.Strict(ContentTypes.`text/plain(UTF-8)`, ByteString(webhookUri.toString()))
+      val urlPart = Some(Multipart.FormData.BodyPart.Strict("url", urlEntity))
+
+      val certificatePart = if (useHttpsServer) {
+        val certificate = ByteString(Source.fromResource("telegram-bot.pem").mkString)
+        val certificateEntity = HttpEntity.Strict(ContentTypes.`application/octet-stream`, certificate)
+
+        Some(Multipart.FormData.BodyPart.Strict("certificate", certificateEntity, Map("filename" -> "cert.pem")))
+      } else {
+        None
+      }
+
+      val formParts = immutable.Seq(urlPart, certificatePart).flatten
+      val formData = Multipart.FormData.Strict(formParts)
+
+      Marshal(formData)
+        .to[RequestEntity]
+        .flatMap(requestEntity => http.singleRequest(HttpRequest(uri = botUri.setWebhook, method = HttpMethods.POST, entity = requestEntity)))
+        .onComplete {
+          case Success(response) =>
+            if (response.status.isSuccess())
+              ctx.self ! SetWebhookSuccess
+            else
+              ctx.self ! SetWebhookFailure(new RuntimeException(s"Set webhook HTTP response status: ${response.status.value}."))
+          case Failure(exception) =>
+            ctx.self ! SetWebhookFailure(exception)
+        }
+
+      Behaviors.receiveMessage {
+        case SetWebhookSuccess =>
+          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)
+        case otherCommand: Command =>
+          stashBuffer.stash(otherCommand)
+          Behaviors.same
+      }
+    }
+
+    def deletingWebhook(binding: Http.ServerBinding, replyTo: ActorRef[Done]): Behavior[Command] = Behaviors.setup[Command] { ctx =>
+      case object DeleteWebhookSuccess extends Command
+      case class DeleteWebhookFailure(exception: Throwable) extends Command
+
+      ctx.log.info("action=delete_webhook url={} webhook={}", botUri.deleteWebhook, webhookUri)
+
+      implicit val executionContextExecutor: ExecutionContextExecutor = ctx.system.dispatchers.lookup(DispatcherSelector.default())
+
+      http
+        .singleRequest(HttpRequest(uri = botUri.deleteWebhook, method = HttpMethods.POST))
+        .onComplete {
+          case Success(response) =>
+            if (response.status.isSuccess())
+              ctx.self ! DeleteWebhookSuccess
+            else
+              ctx.self ! DeleteWebhookFailure(new RuntimeException(s"Delete webhook HTTP response status: ${response.status.value}"))
+          case Failure(exception) =>
+            ctx.self ! DeleteWebhookFailure(exception)
+        }
+
+      Behaviors.receiveMessage {
+        case DeleteWebhookSuccess =>
+          ctx.log.info("action=delete_webhook result=success")
+          unbindingServer(binding, Some(replyTo))
+        case DeleteWebhookFailure(exception) =>
+          ctx.log.error("action=delete_webhook result=failure", exception)
+          unbindingServer(binding, Some(replyTo))
+        case _ => Behaviors.unhandled
+      }
+    }
+
+    def started(binding: Http.ServerBinding): Behavior[Command] = Behaviors.setup[Command] { ctx =>
+      ctx.log.info("action=start_bot result=success")
+
+      Behaviors.receiveMessage[Command] {
+        case stopCommand@Stop(replyTo) =>
+          ctx.log.info("action=stop_bot")
+          deletingWebhook(binding, replyTo)
+        case _ =>
+          Behaviors.unhandled
+      }
+    }
+
+    bindingServer
+  }
+
+  private def botRoutes(hookId: String, updatesProcessor: ActorRef[DialogManager.ProcessUpdate])(implicit scheduler: Scheduler): Route = {
+    import akka.actor.typed.scaladsl.AskPattern._
+    import de.heikoseeberger.akkahttpcirce.FailFastCirceSupport._
+    import io.circe.generic.auto._
+
+    implicit val timeout: Timeout = 30.seconds
+
+    path(hookId) {
+      post {
+        extractLog { log =>
+          entity(as[Update]) { update =>
+            onComplete(updatesProcessor.?[DialogManager.CommandResult](ref => DialogManager.ProcessUpdate(update, ref))) {
+              case Success(processResult) => processResult match {
+                case DialogManager.ProcessUpdateSuccess => complete(HttpResponse(status = StatusCodes.OK))
+                case DialogManager.ProcessUpdateFailure(exception) =>
+                  log.error(exception, "action=process_update result=failure message={}", update)
+                  complete(HttpResponse(status = StatusCodes.InternalServerError))
+              }
+              case Failure(exception) =>
+                log.error(exception, "action=process_update result=failure message={}", update)
+                complete(HttpResponse(status = StatusCodes.InternalServerError))
+            }
+          }
+        }
+      }
+    }
+  }
+
+  private def createHttpsConnectionContext: HttpsConnectionContext = {
+    val password: Array[Char] = "".toCharArray // do not store passwords in code, read them from somewhere safe!
+
+    val ks: KeyStore = KeyStore.getInstance("PKCS12")
+    val keystore: InputStream = getClass.getResourceAsStream("/telegram-bot.p12")
+
+    require(keystore != null, "Keystore required!")
+    ks.load(keystore, password)
+
+    val keyManagerFactory: KeyManagerFactory = KeyManagerFactory.getInstance("SunX509")
+    keyManagerFactory.init(ks, password)
+
+    val tmf: TrustManagerFactory = TrustManagerFactory.getInstance("SunX509")
+    tmf.init(ks)
+
+    val sslContext: SSLContext = SSLContext.getInstance("TLS")
+    sslContext.init(keyManagerFactory.getKeyManagers, tmf.getTrustManagers, new SecureRandom)
+
+    ConnectionContext.https(sslContext)
+  }
+}
--- a/src/main/scala/eu/xeppaka/bot/TelegramEntities.scala
+++ b/src/main/scala/eu/xeppaka/bot/TelegramEntities.scala
@@ -0,0 +1,313 @@
+package eu.xeppaka.bot
+
+object TelegramEntities {
+
+  case class Response[T](ok: Boolean,
+    description: Option[String] = None,
+    error_code: Option[Int] = None,
+    result: T
+  )
+
+  case class GetMe(id: Int, is_bot: Boolean, first_name: String, username: String)
+
+  case class KeyboardButton(text: String,
+    request_contact: Option[Boolean] = None,
+    request_location: Option[Boolean] = None
+  )
+
+  case class InlineKeyboardButton(text: String,
+    url: Option[String] = None,
+    callback_data: Option[String] = None,
+    switch_inline_query: Option[String] = None,
+    switch_inline_query_current_chat: Option[String] = None,
+    callback_game: Option[String] = None,
+    pay: Option[Boolean] = None
+  )
+
+  sealed trait ReplyMarkup
+
+  case class ReplyKeyboardRemove(remove_keyboard: Boolean = true, selective: Option[Boolean] = None) extends ReplyMarkup
+
+  case class ReplyKeyboardMarkup(keyboard: Seq[Seq[KeyboardButton]],
+    resize_keyboard: Option[Boolean] = None,
+    one_time_keyboard: Option[Boolean] = None,
+    selective: Option[Boolean] = None
+  ) extends ReplyMarkup
+
+  case class InlineKeyboardMarkup(inline_keyboard: Seq[Seq[InlineKeyboardButton]])
+    extends ReplyMarkup
+
+  case class ForceReply(force_reply: Boolean = true, selective: Option[Boolean] = None) extends ReplyMarkup
+
+  case class InlineQuery(id: String,
+    from: User,
+    location: Location,
+    query: String,
+    offset: String
+  )
+
+  case class Location(longitude: Float,
+    latitude: Float
+  )
+
+  case class Update(update_id: Int,
+    message: Option[Message] = None,
+    edited_message: Option[Message] = None,
+    channel_post: Option[Message] = None,
+    edited_channel_post: Option[Message] = None,
+    inline_query: Option[InlineQuery] = None,
+    chosen_inline_result: Option[ChosenInlineResult] = None,
+    callback_query: Option[CallbackQuery] = None,
+    shipping_query: Option[ShippingQuery] = None,
+    pre_checkout_query: Option[PreCheckoutQuery] = None
+  )
+
+  case class ChosenInlineResult(result_id: String,
+    from: User,
+    location: Option[Location] = None,
+    inline_message_id: Option[String] = None,
+    query: String
+  )
+
+  case class CallbackQuery(id: String,
+    from: User,
+    message: Option[Message] = None,
+    inline_message_id: Option[String] = None,
+    chat_instance: String,
+    data: Option[String] = None,
+    game_short_name: Option[String] = None
+  )
+
+  case class ShippingQuery(id: String,
+    from: User,
+    invoice_payload: String,
+    shipping_address: ShippingAddress
+  )
+
+  case class ShippingAddress(country_code: String,
+    state: String,
+    city: String,
+    street_line1: String,
+    street_line2: String,
+    post_code: String
+  )
+
+  case class PreCheckoutQuery(id: String,
+    from: User,
+    currency: String,
+    total_amount: Int,
+    invoice_payload: String,
+    shipping_option_id: Option[String] = None,
+    order_info: Option[OrderInfo] = None
+  )
+
+  case class OrderInfo(name: Option[String] = None,
+    phone_number: Option[String] = None,
+    email: Option[String] = None,
+    shipping_address: Option[ShippingAddress] = None
+  )
+
+  case class User(id: Int,
+    is_bot: Boolean,
+    first_name: String,
+    last_name: Option[String] = None,
+    username: Option[String] = None,
+    language_code: Option[String] = None
+  )
+
+  case class EditMessageReplyMarkup(chat_id: Option[Long],
+    message_id: Option[Int],
+    inline_message_id: Option[String],
+    reply_markup: Option[InlineKeyboardMarkup]
+  )
+
+  case class SendMessage(chat_id: Long,
+    text: String,
+    parse_mode: Option[String] = None,
+    disable_web_page_preview: Option[Boolean] = None,
+    disable_notification: Option[Boolean] = None,
+    reply_to_message_id: Option[Int] = None,
+    reply_markup: Option[ReplyMarkup] = None
+  )
+
+  case class Message(message_id: Int,
+    from: Option[User] = None,
+    date: Int,
+    chat: Chat,
+    forward_from: Option[User] = None,
+    forward_from_chat: Option[User] = None,
+    forward_from_message_id: Option[Int] = None,
+    forward_signature: Option[String] = None,
+    forward_date: Option[Int] = None,
+    reply_to_message: Option[Message] = None,
+    edit_date: Option[Int] = None,
+    media_group_id: Option[String] = None,
+    author_signature: Option[String] = None,
+    text: Option[String] = None,
+    entities: Option[Seq[MessageEntity]] = None,
+    caption_entities: Option[Seq[MessageEntity]] = None,
+    audio: Option[Audio] = None,
+    document: Option[Document] = None,
+    game: Option[Game] = None,
+    photo: Option[Seq[PhotoSize]] = None,
+    sticker: Option[Sticker] = None,
+    video: Option[Video] = None,
+    voice: Option[Voice] = None,
+    video_note: Option[VideoNote] = None,
+    caption: Option[String] = None,
+    contact: Option[Contact] = None,
+    location: Option[Location] = None,
+    venue: Option[Venue] = None,
+    new_chat_members: Option[Seq[User]] = None,
+    left_chat_member: Option[Seq[User]] = None,
+    new_chat_title: Option[String] = None,
+    new_chat_photo: Option[Seq[PhotoSize]] = None,
+    delete_chat_photo: Option[Boolean] = None,
+    group_chat_created: Option[Boolean] = None,
+    supergroup_chat_created: Option[Boolean] = None,
+    channel_chat_created: Option[Boolean] = None,
+    migrate_to_chat_id: Option[Int] = None,
+    migrate_from_chat_id: Option[Int] = None,
+    pinned_message: Option[Message] = None,
+    invoice: Option[Invoice] = None,
+    successful_payment: Option[SuccessfulPayment] = None,
+    connected_website: Option[String] = None
+  )
+
+  case class MessageEntity(`type`: String,
+    offset: Int,
+    length: Int,
+    url: Option[String] = None,
+    user: Option[User] = None
+  )
+
+  case class Contact(phone_number: String,
+    first_name: String,
+    last_name: Option[String] = None,
+    user_id: Option[Int] = None
+  )
+
+  case class Sticker(file_id: String,
+    width: Int,
+    height: Int,
+    thumb: Option[PhotoSize] = None,
+    emoji: Option[String] = None,
+    set_name: Option[String] = None,
+    mask_position: Option[String] = None,
+    file_size: Option[Int] = None
+  )
+
+  case class Video(file_id: String,
+    width: Int,
+    height: Int,
+    duration: Int,
+    thumb: Option[PhotoSize] = None,
+    mime_type: Option[String] = None,
+    file_size: Option[Int] = None
+  )
+
+  case class Audio(file_id: String,
+    duration: Int,
+    performer: Option[String] = None,
+    title: Option[String] = None,
+    mime_type: Option[String] = None,
+    file_size: Option[Int] = None
+  )
+
+  case class Document(file_id: String,
+    thumb: Option[PhotoSize] = None,
+    file_name: Option[String] = None,
+    mime_type: Option[String] = None,
+    file_size: Option[Int] = None
+  )
+
+  case class PhotoSize(file_id: String,
+    width: Int,
+    height: Int,
+    file_size: Option[Int] = None
+  )
+
+  case class Voice(file_id: String,
+    duration: Int,
+    mime_type: Option[String] = None,
+    file_size: Option[Int] = None
+  )
+
+  case class VideoNote(file_id: String,
+    length: Int,
+    duration: Int,
+    thumb: Option[PhotoSize] = None,
+    file_size: Option[Int] = None
+  )
+
+  case class ChatPhoto(small_file_id: String, big_file_id: String)
+
+  case class Chat(id: Long,
+    `type`: String,
+    title: Option[String] = None,
+    username: Option[String] = None,
+    first_name: Option[String] = None,
+    last_name: Option[String] = None,
+    all_members_are_administrators: Option[Boolean] = None,
+    photo: Option[ChatPhoto] = None,
+    description: Option[String] = None,
+    invite_link: Option[String] = None,
+    pinned_message: Option[Message] = None,
+    sticker_set_name: Option[String] = None,
+    can_set_sticker_set: Option[Boolean] = None
+  )
+
+  case class Game(title: String,
+    description: String,
+    photo: Seq[PhotoSize],
+    text: Option[String] = None,
+    text_entities: Option[Seq[MessageEntity]] = None,
+    animation: Option[Animation] = None
+  )
+
+  case class Animation(file_id: String,
+    thumb: Option[PhotoSize] = None,
+    file_name: Option[String] = None,
+    mime_type: Option[String] = None,
+    file_size: Option[Int] = None
+  )
+
+  case class InputFile()
+
+  case class Venue(location: Location,
+    title: String,
+    address: String,
+    foursquare_id: Option[String] = None
+  )
+
+  case class Invoice(title: String,
+    description: String,
+    start_parameter: String,
+    currency: String,
+    total_amount: Int
+  )
+
+  case class SuccessfulPayment(currency: String,
+    total_amount: Int,
+    invoice_payload: String,
+    shipping_option_id: Option[String] = None,
+    order_info: Option[OrderInfo] = None,
+    telegram_payment_charge_id: String,
+    provider_payment_charge_id: String
+  )
+
+  case class Webhook(url: String,
+    certificate: Option[InputFile] = None,
+    max_connections: Option[Int] = None,
+    allowed_updates: Option[Seq[String]] = None
+  )
+
+  case class WebhookInfo(url: String,
+    has_custom_certificate: Boolean,
+    pending_update_count: Int,
+    last_error_date: Option[Int] = None,
+    last_error_message: Option[String] = None,
+    max_connections: Option[Int] = None,
+    allowed_updates: Option[Seq[String]] = None
+  )
+}
--- a/src/main/scala/eu/xeppaka/bot/TelegramEntitiesDerivations.scala
+++ b/src/main/scala/eu/xeppaka/bot/TelegramEntitiesDerivations.scala
@@ -0,0 +1,24 @@
+package eu.xeppaka.bot
+
+import cats.syntax.functor._
+import eu.xeppaka.bot.TelegramEntities._
+import io.circe.{Decoder, Encoder}
+import io.circe.generic.auto._
+import io.circe.syntax._
+
+object TelegramEntitiesDerivations {
+  implicit val encodeReplyMarkup: Encoder[ReplyMarkup] = Encoder.instance {
+    case replyKeyboardMarkup: ReplyKeyboardMarkup => replyKeyboardMarkup.asJson
+    case replyKeyboardRemove: ReplyKeyboardRemove => replyKeyboardRemove.asJson
+    case inlineKeyboardMarkup: InlineKeyboardMarkup => inlineKeyboardMarkup.asJson
+    case forceReply: ForceReply => forceReply.asJson
+  }
+
+  implicit val decodeReplyMarkup: Decoder[ReplyMarkup] =
+    List[Decoder[ReplyMarkup]](
+      Decoder[ReplyKeyboardMarkup].widen,
+      Decoder[ReplyKeyboardRemove].widen,
+      Decoder[InlineKeyboardMarkup].widen,
+      Decoder[ForceReply].widen
+    ).reduceLeft(_ or _)
+}