package nova.monadic_sfx

import scalafx.application.JFXApp
import scalafx.application.JFXApp.PrimaryStage
import monix.eval.Task
import monix.execution.Scheduler
// import sttp.client.asynchttpclient.monix.AsyncHttpClientMonixBackend
// import sttp.client._
// import sttp.client.circe._
// import io.circe.generic.auto._
import scala.util.Failure
import scala.util.Success
import akka.{actor => classic}
import nova.monadic_sfx.executors._
import cats.effect.Resource
import nova.monadic_sfx.models._
import nova.monadic_sfx.ui.DefaultUI
import nova.monadic_sfx.http.Backend
import nova.monadic_sfx.modules.MainModule
import scalafx.stage.Stage
import scalafx.scene.layout.FlowPane
import nova.monadic_sfx.pages.LoginPage
import scala.concurrent.duration._
import sttp.client.asynchttpclient.monix.AsyncHttpClientMonixBackend
import scalafx.Includes._
import scala.concurrent.Await
import akka.actor.typed.scaladsl.adapter._
import scalafx.application.Platform
import io.odin.syntax._
// import io.odin._
import io.odin.monix._
import nova.monadic_sfx.pages.HomePage

object ScalaFXHelloWorld extends JFXApp with MainModule {

  val logger = consoleLogger().withAsyncUnsafe()

  lazy val schedulers: Schedulers = new Schedulers()

  implicit lazy val defaultScheduler: Scheduler = schedulers.fx

  lazy val backendTask = AsyncHttpClientMonixBackend()
  lazy val actorSystemTask = Task {
    classic.ActorSystem(
      name = "FXActorSystem"
    )
  }

  lazy val application = for {
    _ <- logger.info("Starting application..")
    backend <- backendTask
    actorSystem <- actorSystemTask
    // to spawn child actors
    // _ <- Task { actorSystem.spawn() }
    appStage <- Task { makePrimaryStage(backend, actorSystem) }
    // splash screen
    _ <- Task {
      // this stage refers to implicit jfx stage
      // makes this impure, but I can't think of a better way right now
      stage = appStage
    }
    // wait 2 seconds before showing home screen
    d <- deps
    fib1 <- d.send().start
    _ <- Task.sleep(2.seconds)
    _ <- Task {
      // appStage.maximized = true
      appStage.height = 800
      appStage.width = 800
      appStage
        .scene()
        .setRoot(
          LoginPage(appStage, backend, actorSystem)
        )
    }
    // _ <- fib1.join
  } yield ()
  application.timed.runToFuture
    .onComplete(res =>
      res match {
        case Failure(exception) => {
          println("Application start failed. Reason -")
          exception.printStackTrace()
        }
        case Success((duration, _)) =>
          println(
            s"Application started successfully in ${duration.toSeconds} seconds"
          )
      }
    )

  // Task
  //   .suspend {
  //     val program = Task {
  //       stage = new PrimaryStage {
  //         //    initStyle(StageStyle.Unified)
  //         title = "ScalaFX Hello World"
  //         scene = defaultUI.scene

  //       }
  //     }

  // val backendResource = AsyncHttpClientMonixBackend
  //   .resource()
  //   .use { implicit backend =>
  //     Task
  //       .suspend(
  //         (for {
  //           req <-
  //             basicRequest
  //               .get(uri"https://httpbin.org/get")
  //               .response(asJson[HttpBinResponse])
  //               .send()
  //         } yield println(req)) >>
  //           Task(println(Thread.currentThread().getName()))
  //       )
  //   // .delayExecution(1.second)
  //   }
  //   .executeOn(Scheduler.global)
  // val akkaResource = Resource
  //   .make(Task {
  //     classic.ActorSystem(
  //       name = "FXActorSystem"
  //     )
  //   })(sys => Task(println("Shutting down actor system")) >> Task(sys.terminate()))
  //   .use { implicit system =>
  //     // system.spa
  //     // system.typed
  //     // val javaFxActor = system.actorOf(
  //     //   Props[JavaFxActor]().withDispatcher("javafx-dispatcher"),
  //     //   "javaFxActor"
  //     // )
  //     // val swingActor = system.actorOf(
  //     //   Props[SwingActor]().withDispatcher("swing-dispatcher"),
  //     //   "swingActor"
  //     // )
  //     Task.unit
  //   }
  // .delayExecution(1.second)
  // backendResource.start >> akkaResource.start >>
  //   program.to[Task].asyncBoundary >>
  //   Task(println(Thread.currentThread().getName()))
  //     .executeOn(Scheduler.global)
  // Task.parZip3(
  //   program.to[Task].executeOn(defaultScheduler),
  //   // backendResource,
  //   // dummyRequester.send(),
  //   // akkaResource,
  //   Task(println(Thread.currentThread().getName()))
  //     .executeOn(schedulers.cpu)
  // )
  // }
  // .runToFuture
  // .onComplete(res =>
  //   res match {
  //     case Failure(exception) => {
  //       println("Application start failed. Reason -")
  //       exception.printStackTrace()
  //     }
  //     case Success(value) => println("Application started Successfully")
  //   }
  // )

  // new TaskApp {
  //   override protected def scheduler: Scheduler =
  //     JFXExecutionContexts.javaFxScheduler
  //   override def run(args: List[String]): Task[ExitCode] =
  //     Task.suspend {
  //       Task {
  //         AsyncHttpClientMonixBackend().flatMap(implicit backend => {
  //           val req = RequestPayload("").asJson
  //           basicRequest.get(uri"").body(req).send()
  //         })
  //       } >>
  //         program.to[Task].executeOn(JFXExecutionContexts.javaFxScheduler) >>
  //         Task(println(Thread.currentThread().getName()))
  //           .executeOn(Scheduler.global) >>
  //         // Task.unit.asyncBoundary >>
  //         Task.pure(ExitCode.Success)
  //     }
  // }
// }

// Task.sleep(3.seconds).flatMap { _ =>
//
//             (for {
//               req <-
//                 basicRequest
//                   .get(uri"https://httpbin.org/get")
//                   .response(asJson[HttpBinResponse])
//                   .send()
//             } yield println(req)) >> Task(
//               println(Thread.currentThread().getName())
//             ) >>
//               backend.close()
//           }
//
  def test(stage: Stage) = {
    stage.scene().setRoot(new FlowPane())
  }
  def makePrimaryStage(
      backend: AppTypes.HttpBackend,
      actorSystem: classic.ActorSystem
  ) = {
    new PrimaryStage {
      scene = new DefaultUI().scene
      onCloseRequest = () => {
        val f2 = actorSystem.terminate()
        val f1 = backend.close().runToFuture

        println("Closing backend")
        Await.result(f1, 3.seconds)
        println("Closing actor system")
        println(Thread.currentThread().getName())
        Await.result(f2, 3.seconds)
        println("Actor system closed")
        Platform.exit()
        System.exit(0)
      }
    }
  }
}