jove.notebook.services.Sessions.scala Maven / Gradle / Ivy

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package jove.notebook.services

import jove.helpers.Kernels
import jove.notebook._
import jove.notebook.components.Session
import jove.protocol.NbUUID
import org.http4s.dsl._
import org.http4s.argonaut._
import argonaut._, Argonaut._, Shapeless._
import scalaz._, Scalaz._

object Sessions {
  def apply(kernel: Kernels, session: Session): Plan = {
    case GET -> Root / "api" / "sessions" =>
      Ok(session.dummySessions.toList.map{
        case (id, session) =>
          Protocol.Session(
            id,
            Protocol.Session.Notebook(session.notebook.path),
            Protocol.Session.Kernel(session.kernel.id, session.kernel.name)
          )
      }.asJson)

    case req @ (POST -> Root / "api" / "sessions") =>
      req.decode[Json] { reqJson =>
        val c = reqJson.hcursor
        for {
          notebookPath <- c.--\("notebook").--\("path").as[String].result.leftMap(_ => "No notebook path specified")
          kernelId <- {
            (c.--\("kernel").--\("id").as[String].result orElse c.--\("kernel").--\("name").as[String].result).toOption.filter(kernel.kernel(_).nonEmpty)
              .orElse(kernel.kernelFor(notebookPath))
              .orElse(kernel.defaultKernel)
          } toRightDisjunction "No kernel or kernel not found"
        } yield {
          val id = NbUUID.randomUUID().toString
          val _session = Protocol.Session(id, Protocol.Session.Notebook(notebookPath), Protocol.Session.Kernel(kernelId, kernelId))

          session.addDummySession(id, _session)

          _session
        }
      }

    case GET -> Root / "api" / "sessions" / id =>
      for {
        _session <- session.dummySessions.get(id) toRightDisjunction s"Session $id not found"
      } yield
        Protocol.Session(
          id,
          Protocol.Session.Notebook(_session.notebook.path),
          Protocol.Session.Kernel(_session.kernel.id, _session.kernel.name)
        )

    case PATCH -> Root / "api" / "sessions" / id =>
      // means notebook renamed -> we don't care
      NoContent()

    case DELETE -> Root / "api" / "sessions" / id =>
      // FIXME Really stop the session somehow here
      session.deleteDummySession(id)
      NoContent()
  }
}