import java.util.*

abstract class AggressiveCard: Card {
    override fun startSkill() {
        println(activeString)
        owner.enemy.effectBuffer = this.effects
        owner.enemy.attackingCard = this
        owner.enemy.effectBuffer.forEach { it.apply() }
    }

    override fun toString(): String {
        return "${this.id}. ${this.name}"
    }
}

abstract class DefensiveCard: Card {
    class NotInPassiveContextException: Exception()
    override fun startSkill() {
        if(owner.effectBuffer.isEmpty()) {
            throw NotInPassiveContextException()
        }
        println("attacking: ${owner.attackingCard}")
        println("${owner.enemy.attackingCard}")
        println(activeString)
        this.effects.forEach { it.apply() }
    }

    override fun toString(): String {
        return "${this.id}. ${this.name}"
    }
}

abstract class GeneralCard: Card {
    override fun startSkill() {
        println(activeString)
        this.effects.forEach { it.apply() }
    }

    override fun toString(): String {
        return "${this.id}. ${this.name}"
    }
}

class AttackCard(override val owner: Character): AggressiveCard() {
    override val name = "攻擊"
    override val id = 1
    override val effects: Array<Effect> = arrayOf(Damage(owner.enemy, decreaseLife = 2))
    override val activeString = "$owner 攻擊 ${owner.enemy}"

}
class DefendCard(override val owner: Character): DefensiveCard() {
    override val name = "防禦"
    override val id = 2
    override val effects: Array<Effect> = arrayOf(Defense(owner))
    override val activeString = "$owner 防禦成功"
}
class HealCard(override val owner: Character): GeneralCard() {
    override val name = "治癒"
    override val id = 3
    override val effects: Array<Effect> = arrayOf(Heal(owner, increaseLife = 2))
    override val activeString = "$owner 回復2點生命"
}
class SupplyCard(override val owner: Character): GeneralCard() {
    override val name = "補給"
    override val id = 4
    override val effects: Array<Effect> = arrayOf(DrawFromDeck(owner, numberOfCards = 2))
    override val activeString = "$owner 增加2張手牌"
}
class RobbingCard(override val owner: Character): AggressiveCard() {
    override val name = "強奪"
    override val id = 5
    override val effects: Array<Effect> = arrayOf(ChooseFromCharacterHand(owner, owner.enemy))
    override val activeString = "$owner 正在對 ${owner.enemy} 行搶"
}
class SurpriceCard(override val owner: Character): AggressiveCard() {
    override val name = "奇襲"
    override val id = 6
    override val effects: Array<Effect> = arrayOf(Damage(owner.enemy, decreaseLife = 2),
                                                  LoseCard(owner.enemy))
    override val activeString = "$owner 發動奇襲"
}
class AwareCard(override val owner: Character): DefensiveCard() {
    override val name = "洞悉"
    override val id = 7
    override val effects: Array<Effect> = arrayOf(DrawFromDeck(owner, numberOfCards = 2), Defense(owner))
    override val activeString = "$owner 洞悉了 ${owner.enemy} 的攻擊，並抽取2張手牌"
}
class PlanCard(override val owner: Character): GeneralCard() {
    override val name = "妙策"
    override val id = 8
    override val effects: Array<Effect> = arrayOf(ChooseFromDeck(owner))
    override val activeString = "$owner 有個妙策"
}
class SweepCard(override val owner: Character): AggressiveCard() {
    override val name = "掃射"
    override val id = 9
    private val damage = Random().nextInt(6)
    override val effects: Array<Effect>
        get() = arrayOf(Damage(owner.enemy, decreaseLife = damage))
    override val activeString = "$owner 對 ${owner.enemy} 進行掃射，威力是 $damage"
}
class BlessCard(override val owner: Character): GeneralCard() {
    override val name = "加護"
    override val id = 10
    override val effects: Array<Effect> = arrayOf(Heal(owner, increaseLife = 3), SolvePoison(owner))
    override val activeString = "$owner 獲得加護，身上的毒素一掃而空，並回復3點生命"
}
class PoisonCard(override val owner: Character): GeneralCard() {
    override val name = "劇毒"
    override val id = 11
    override val effects: Array<Effect> = arrayOf(Poison(owner.enemy))
    override val activeString = "$owner 在食物下毒，${owner.enemy} 中毒了"
}
class ChaosCard(override val owner: Character): AggressiveCard() {
    override val name = "狂亂"
    override val id = 12
    override val effects: Array<Effect> = arrayOf(Heal(owner, increaseLife = 3),
                                                  Damage(owner.enemy, decreaseLife = 3))
    override val activeString = "$owner 進入狂亂模式，回復三點生命，並對 ${owner.enemy} 造成三點傷害"
}
class ReverseCard(override val owner: Character): DefensiveCard() {
    override val name = "反制"
    override val id = 13
    override val effects: Array<Effect> = arrayOf(Reverse(owner), Defense(owner))
    override val activeString = "$owner 反制了 ${owner.enemy} 的攻擊，反彈了其效果"
}