adding backend project

will try to do rest & websocket api with http4s

backend/src/main/scala/industries/sunshine/planningpoker/App.scala

@@ -0,0 +1,32 @@
+package industries.sunshine.planningpoker
+
+import cats.effect._
+import cats.syntax.all._
+import org.http4s._, org.http4s.dsl.io._, org.http4s.implicits._
+import com.comcast.ip4s._
+import org.http4s.HttpRoutes
+import org.http4s.dsl.io._
+import org.http4s.implicits._
+import org.http4s.ember.server._
+
+object App extends IOApp.Simple {
+
+  val service = HttpRoutes
+    .of[IO] { case _ =>
+      Ok("hello")
+    }
+    .orNotFound
+
+  override def run: IO[Unit] = {
+    val a = 1
+    IO.println(s"Hello, World! $a") >>
+      EmberServerBuilder
+        .default[IO]
+        .withHost(ipv4"0.0.0.0")
+        .withPort(port"8080")
+        .withHttpApp(service)
+        .build
+        .use(_ => IO.never)
+        .as(ExitCode.Success)
+  }
+}

build.sbt

@@ -1,10 +1,14 @@
 import org.scalajs.linker.interface.ModuleSplitStyle
 
-lazy val planningPokerGrargh = project
-  .in(file("."))
+lazy val commonSettings = Seq(
+  scalaVersion := "3.2.0"
+)
+
+lazy val frontend = project
+  .in(file("frontend"))
   .enablePlugins(ScalaJSPlugin) // Enable the Scala.js plugin in this project
   .settings(
-    scalaVersion := "3.2.0",
+    commonSettings,
 
     // Tell Scala.js that this is an application with a main method
     scalaJSUseMainModuleInitializer := true,
@@ -29,3 +33,27 @@ lazy val planningPokerGrargh = project
     libraryDependencies += "org.scala-js" %%% "scalajs-dom" % "2.4.0",
     libraryDependencies += "com.raquo" %%% "laminar" % "15.0.1"
   )
+  .dependsOn(common)
+
+lazy val backend = project
+  .in(file("backend"))
+  .settings(
+    commonSettings,
+    libraryDependencies ++= Seq(
+      "org.http4s" %% "http4s-ember-client" % http4sVersion,
+      "org.http4s" %% "http4s-ember-server" % http4sVersion,
+      "org.http4s" %% "http4s-dsl" % http4sVersion
+    ),
+    // available for 2.12, 2.13, 3.2
+    libraryDependencies += "co.fs2" %% "fs2-core" % "3.6.1",
+    libraryDependencies += "org.typelevel" %% "cats-core" % "2.9.0",
+    libraryDependencies += "org.typelevel" %% "cats-effect" % "3.4.9"
+  )
+  .dependsOn(common)
+
+val http4sVersion = "1.0.0-M39"
+lazy val common = project
+  .in(file("common"))
+  .settings(
+    commonSettings
+  )

common/src/main/scala/industries/sunshine/planningpoker/Models.scala

@@ -1,7 +1,8 @@
-package industries.sunshine.planningpoker
+package industries.sunshine.planningpoker.common
 
 import java.util.UUID
 
+object Models {
 /** view of the single planning poker round
   * @param players
   *   \- people who are currently playing
@@ -67,3 +68,5 @@ final case class ViewingRound(
 
 final class PlayerID
 final case class Player(name: String, id: PlayerID)
+
+}

frontend/src/main/scala/industries/sunshine/planningpoker/PlanningPokerUrgh.scala

@@ -3,6 +3,7 @@ package industries.sunshine.planningpoker
 import scala.scalajs.js
 import scala.scalajs.js.annotation.*
 import com.raquo.laminar.api.L.{*, given}
+import industries.sunshine.planningpoker.common.Models.*
 
 import org.scalajs.dom
 

frontend/src/main/scala/industries/sunshine/planningpoker/RoomView.scala

@@ -2,6 +2,7 @@ package industries.sunshine.planningpoker
 
 import scala.scalajs.js
 import com.raquo.laminar.api.L.{*, given}
+import industries.sunshine.planningpoker.common.Models.*
 
 /** Rendering of the Room state
   */

frontend/src/main/scala/industries/sunshine/planningpoker/TableView.scala

@@ -3,6 +3,7 @@ package industries.sunshine.planningpoker
 import scala.scalajs.js
 import com.raquo.laminar.api.L.{*, given}
 import scala.scalajs.js.Dynamic.{global => g}
+import industries.sunshine.planningpoker.common.Models.*
 
 object TableView {
   // new plan. map to players, split by playerId, map into specific card