package eventDemo.business.entity

import kotlinx.serialization.Serializable

@Serializable
@JvmInline
value class PlayersHands(
  private val map: Map<Player.PlayerId, List<Card>> = emptyMap(),
) : Map<Player.PlayerId, List<Card>> by map {
  constructor(players: Set<Player>) :
    this(players.map { it.id }.associateWith { emptyList<Card>() }.toPlayersHands())

  fun getHand(player: Player): List<Card>? =
    this[player.id]

  fun removeCard(
    player: Player,
    card: Card,
  ): PlayersHands =
    mapValues { (playerId, cards) ->
      if (playerId == player.id) {
        if (!cards.contains(card)) error("The hand no contain the card")
        cards - card
      } else {
        cards
      }
    }.toPlayersHands()

  fun addCard(
    player: Player,
    newCard: Card,
  ): PlayersHands =
    addCards(player, listOf(newCard))

  fun addCards(
    player: Player,
    newCards: List<Card>,
  ): PlayersHands =
    mapValues { (p, cards) ->
      if (p == player.id) {
        if (cards.intersect(newCards).isNotEmpty()) error("The hand already contain the card")
        cards + newCards
      } else {
        cards
      }
    }.toPlayersHands()
}

fun Map<Player.PlayerId, List<Card>>.toPlayersHands(): PlayersHands =
  PlayersHands(this)