// Core with minimal dependencies, enough to spawn your first bot.
libraryDependencies += "com.bot4s" %% "telegram-core" % "5.8.0"

// Extra goodies: Webhooks, support for games, bindings for actors.
libraryDependencies += "com.bot4s" %% "telegram-akka" % "5.8.0"

ivy"com.bot4s::telegram-core:5.8.0", // core
ivy"com.bot4s::telegram-akka:5.8.0"  // extra goodies

import cats.instances.future._
import cats.syntax.functor._
import com.bot4s.telegram.api.RequestHandler
import com.bot4s.telegram.api.declarative.Commands
import com.bot4s.telegram.clients.{FutureSttpClient, ScalajHttpClient}
import com.bot4s.telegram.future.{Polling, TelegramBot}
import slogging.{LogLevel, LoggerConfig, PrintLoggerFactory}

import scala.util.Try
import scala.concurrent.Future

/** Generates random values.
  */
class RandomBot(val token: String) extends TelegramBot
  with Polling
  with Commands[Future] {

  LoggerConfig.factory = PrintLoggerFactory()
  // set log level, e.g. to TRACE
  LoggerConfig.level = LogLevel.TRACE

  // Use sttp-based backend
  implicit val backend = SttpBackends.default
  override val client: RequestHandler[Future] = new FutureSttpClient(token)

  // Or just the scalaj-http backend
  // override val client: RequestHandler[Future] = new ScalajHttpClient(token)

  val rng = new scala.util.Random(System.currentTimeMillis())
  onCommand("coin" or "flip") { implicit msg =>
    reply(if (rng.nextBoolean()) "Head!" else "Tail!").void
  }
  onCommand('real | 'double | 'float) { implicit msg =>
    reply(rng.nextDouble().toString).void
  }
  onCommand("/dice" | "roll") { implicit msg =>
    reply("⚀⚁⚂⚃⚄⚅" (rng.nextInt(6)).toString).void
  }
  onCommand("random" or "rnd") { implicit msg =>
    withArgs {
      case Seq(Int(n)) if n > 0 =>
        reply(rng.nextInt(n).toString).void
      case _ => reply("Invalid argumentヽ(ಠ_ಠ)ノ").void
    }
  }
  onCommand('choose | 'pick | 'select) { implicit msg =>
    withArgs { args =>
      replyMd(if (args.isEmpty) "No arguments provided." else args(rng.nextInt(args.size))).void
    }
  }

  // Int(n) extractor
  object Int {
    def unapply(s: String): Option[Int] = Try(s.toInt).toOption
  }
}


// To run spawn the bot
val bot = new RandomBot("BOT_TOKEN")
val eol = bot.run()
println("Press [ENTER] to shutdown the bot, it may take a few seconds...")
scala.io.StdIn.readLine()
bot.shutdown() // initiate shutdown
// Wait for the bot end-of-life
Await.result(eol, Duration.Inf)

import java.net.URLEncoder

import cats.instances.future._
import cats.syntax.functor._
import com.bot4s.telegram.Implicits._
import com.bot4s.telegram.api.declarative._
import com.bot4s.telegram.api.ChatActions
import com.bot4s.telegram.future.Polling
import com.bot4s.telegram.methods._
import com.bot4s.telegram.models._

import scala.concurrent.Future

/** Text-to-speech bot (using Google TTS API)
  *
  * Google will rightfully block your IP in case of abuse.
  * Usage: /speak Hello World
  */
object TextToSpeechBot extends TelegramBot
  with Polling
  with Commands[Future]
  with InlineQueries[Future]
  with ChatActions[Future] {

  override val client: RequestHandler[Future] = new ScalajHttpClient("BOT_TOKEN")

  def ttsUrl(text: String): String =
    s"http://translate.google.com/translate_tts?client=tw-ob&tl=en-us&q=${URLEncoder.encode(text, "UTF-8")}"

  onCommand("speak" | "say" | "talk") { implicit msg =>
    withArgs { args =>
      val text = args.mkString(" ")
      for {
        r <- Future { scalaj.http.Http(ttsUrl(text)).asBytes }
        if r.isSuccess
        bytes = r.body
        _ <- uploadingAudio // hint the user
        voiceMp3 = InputFile("voice.mp3", bytes)
        _ <- request(SendVoice(msg.source, voiceMp3))
      } yield ()
    }
  }
}

val bot = TextToSpeechBot
val eol = bot.run()
println("Press [ENTER] to shutdown the bot, it may take a few seconds...")
scala.io.StdIn.readLine()
bot.shutdown() // initiate shutdown
// Wait for the bot end-of-life
Await.result(eol, Duration.Inf) // ScalaJs wont't let you do this

object LmgtfyBot extends AkkaTelegramBot
  with Webhook
  with Commands[Future] {

  val client = new AkkaHttpClient("BOT_TOKEN")
  override val port = 8443
  override val webhookUrl = "https://1d1ceb07.ngrok.io"

  onCommand("lmgtfy") { implicit msg =>
    withArgs { args =>
      reply(
        "http://lmgtfy.com/?q=" + URLEncoder.encode(args.mkString(" "), "UTF-8"),
        disableWebPagePreview = Some(true)
      )
    }
  }
}