package app

import scalatags.Text.all._

import scala.util.Random

object MinimalApplication extends cask.MainRoutes{

  val bootstrap = "https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.css"

  var x = Random.between(0, 7)

  var y = Random.between(0, 7) 

  var z = Random.between(0, 7) 

  abstract class Answer

  case object No extends Answer

  case object Correct extends Answer

  case class Wrong(n: Int) extends Answer

  var ans : Answer = No

  var cnt = 1

  val heart = raw("❤️")

  val unicorn = raw("🦄")

  var nms = List("Christiane", "Sebastian")

  @cask.get("/")

  def hello() = 

      doctype("html")(

      html(

        head(link(rel := "stylesheet", href := bootstrap)), 

        body(

          div(cls := "container")( 

            //h1(s"Hello ${nms((cnt / 3) % 2)}!"), 

            h1(s"Hello Christiane"),  

            h1(s"$x + $y = ??"),  

	    ans match {

              case No => ""

              case Correct => i(color.green)("Correct!")

              case Wrong(n) => i(color.red)(s"$n is wrong!")

	    },

            form(action := "/", method := "post")(

	      frag(

		for (i <- 0 to 12) yield button(`type` := "submit", name := "name", value := i.toString)(i.toString)  

              )

            ),

            frag(

              for (i <- 0 until cnt) yield 

                if ((i + 1) % 10 != 0) heart else unicorn

            )

          )

        )

      )

  )

  @cask.postForm("/")

  def answer(name: String) = {

    if (x + y == name.toInt) {

      ans = Correct

      x = Random.between(0, 7)

      y = Random.between(0, 7)

      z = Random.between(0, 7)

      cnt = cnt + 1

    }

    else 

      ans = Wrong(name.toInt)

    hello()

  }

  initialize()

}