fix: BAC-29 Implement Mappers for Common Classes (#101)

Reviewed-on: #101
Co-authored-by: Janis <janis.e.20@gmx.de>
Co-committed-by: Janis <janis.e.20@gmx.de>

knockoutwhistweb/app/dto/RoundDTO.scala

@@ -0,0 +1,22 @@
+package dto
+
+import de.knockoutwhist.cards.Card
+import de.knockoutwhist.cards.CardValue.Ace
+import play.api.libs.json.{Json, OFormat}
+
+case class RoundDTO(trumpSuit: CardDTO, firstRound: Boolean, tricklist: List[TrickDTO], winner: Option[PlayerDTO])
+
+object RoundDTO {
+
+  implicit val roundFormat: OFormat[RoundDTO] = Json.format[RoundDTO]
+
+  def apply(round: de.knockoutwhist.rounds.Round): RoundDTO = {
+    RoundDTO(
+      trumpSuit = CardDTO(Card(Ace, round.trumpSuit)),
+      firstRound = round.firstRound,
+      tricklist = round.tricklist.map(trick => TrickDTO(trick)),
+      winner = round.winner.map(player => PlayerDTO(player))
+    )
+  }
+
+}