YAEP/composeApp/src/commonMain/kotlin/domain/Game.kt

package domain

import kotlin.reflect.KClass

class Game(
    val grid: Grid,
    val rules: List<GameRule>
) {
    val horizontalRules = rules.filterIsInstance<HorizontalRule>()
    val verticalRules = rules.filterIsInstance<VerticalRule>()
    
    fun areCategoriesValid(): Boolean {
        val usedCategories = mutableSetOf<KClass<out ItemClass>>()
        for (row in grid.rows) {
            val category = row.first().options.first()::class
            if (usedCategories.contains(category)) {
                return false
            }
            usedCategories.add(category)
        }
        return true
    }

    fun areRulesViolated(): Boolean = rules
        .map { it.isRuleViolated(grid) }
        .reduce { a, b -> a || b }
}