package com.unogame.model

data class GameState(
    val players: List<Player> = emptyList(),
    val currentPlayerIndex: Int = 0,
    val direction: Int = 1,
    val discardPile: List<Card> = emptyList(),
    val drawPileCount: Int = 76,
    val currentWildColor: CardColor? = null,
    val isGameOver: Boolean = false,
    val winner: Player? = null,
    val pendingDrawCount: Int = 0,
    val flipped: Boolean = false,
    val turnNumber: Int = 0,
    val message: String = ""
) {
    val currentPlayer: Player
        get() = if (players.isEmpty())
            Player("", "")
        else players[currentPlayerIndex]

    val topCard: Card?
        get() = discardPile.lastOrNull()

    fun nextPlayerIndex(): Int {
        if (players.isEmpty()) return 0
        var next = currentPlayerIndex + direction
        if (next < 0) next = players.size - 1
        if (next >= players.size) next = 0
        return next
    }
}