adding backend project

will try to do rest & websocket api with http4s

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

@@ -0,0 +1,72 @@
+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
+  * @param allowedCards
+  *   \- the cards values that can be used by players
+  * @param round
+  *   \- state of the selected cards of the players
+  * @param canCloseRound
+  *   \- whether current player has access to button to finish the round
+  */
+final case class RoomStateView(
+    players: List[Player],
+    me: PlayerID,
+    allowedCards: List[String],
+    round: RoundState,
+    canCloseRound: Boolean = false
+) {
+  def playersCount: Int = players.size
+}
+
+object RoomStateView {
+  val me = Player("wormy", PlayerID())
+  val testRoom = {
+    val pony = Player("pony", PlayerID())
+    RoomStateView(
+      players = List(me, Player("birdy", PlayerID()), pony),
+      me = me.id,
+      allowedCards = List("xs", "s", "m", "l", "xl"),
+      round = VotingRound(myCard = Some("s"), alreadyVoted = List(me, pony)),
+      canCloseRound = true
+    )
+  }
+  val testOpenedRoom = {
+    val pony = Player("pony", PlayerID())
+    val birdy = Player("birdy", PlayerID())
+    val horsey = Player("horsey", PlayerID())
+    RoomStateView(
+      players = List(me, birdy, pony, horsey),
+      me = me.id,
+      allowedCards = List("xs", "s", "m", "l", "xl"),
+      round = ViewingRound(Map( me.id -> "xs", pony.id -> "l", birdy.id -> "s", horsey.id -> "m" )),
+      canCloseRound = true
+    )
+  }
+
+}
+
+trait RoundState
+
+/** view state for round before votes are open player can know their vote and
+  * who of the other players have voted
+  */
+final case class VotingRound(
+    myCard: Option[String],
+    alreadyVoted: List[Player]
+) extends RoundState
+
+/** view state for round after opening the votes
+  */
+final case class ViewingRound(
+    votes: Map[PlayerID, String]
+) extends RoundState
+
+final class PlayerID
+final case class Player(name: String, id: PlayerID)
+
+}