using System;
using System.Collections;
using System.Collections.Generic;

// Punkmon
namespace DCGO.CardEffects.EX11
{
    public class EX11_049 : CEntity_Effect
    {
        public override List<ICardEffect> CardEffects(EffectTiming timing, CardSource card)
        {
            List<ICardEffect> cardEffects = new List<ICardEffect>();

            #region Digivolution Condition

            if (timing == EffectTiming.None)
            {
                bool PermanentCondition(Permanent targetPermanent)
                {
                    return targetPermanent.TopCard.IsLevel3
                        && targetPermanent.TopCard.EqualsTraits("Evil");
                }

                cardEffects.Add(CardEffectFactory.AddSelfDigivolutionRequirementStaticEffect(
                    permanentCondition: PermanentCondition,
                    digivolutionCost: 2,
                    ignoreDigivolutionRequirement: false,
                    card: card,
                    condition: null));
            }

            #endregion

            #region Start of Your Main Phase

            if (timing == EffectTiming.OnAllyAttack)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Discard 2, then may digivolve into [Dark Dragon]/[Evil Dragon] for 2 less.", CanUseCondition, card);
                activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, -1, false, EffectDescription());
                cardEffects.Add(activateClass);

                string EffectDescription()
                {
                    return "[When Attacking] Trash 2 cards in your hand. Then, this Digimon may digivolve into a [Dark Dragon] or [Evil Dragon] trait Digimon card in the trash with the digivolution cost reduced by 2.";
                }

                bool CanUseCondition(Hashtable hashtable)
                {
                    return CardEffectCommons.IsExistOnBattleArea(card)
                        && CardEffectCommons.CanTriggerOnAttack(hashtable, card);
                }

                bool CanActivateCondition(Hashtable hashtable)
                {
                    return CardEffectCommons.IsExistOnBattleArea(card);
                }

                bool CanSelectCardCondition(CardSource cardSource)
                {
                    return cardSource.IsDigimon
                        && (cardSource.EqualsTraits("Dark Dragon")
                            || cardSource.EqualsTraits("Evil Dragon"));
                }

                IEnumerator ActivateCoroutine(Hashtable hashtable)
                {
                    int discardCount = Math.Min(2, card.Owner.HandCards.Count);

                    SelectHandEffect selectHandEffect = GManager.instance.GetComponent<SelectHandEffect>();

                    selectHandEffect.SetUp(
                        selectPlayer: card.Owner,
                        canTargetCondition: (cardSource) => true,
                        canTargetCondition_ByPreSelecetedList: null,
                        canEndSelectCondition: null,
                        maxCount: discardCount,
                        canNoSelect: false,
                        canEndNotMax: false,
                        isShowOpponent: true,
                        selectCardCoroutine: null,
                        afterSelectCardCoroutine: null,
                        mode: SelectHandEffect.Mode.Discard,
                        cardEffect: activateClass);

                    yield return ContinuousController.instance.StartCoroutine(selectHandEffect.Activate());
                    
                    yield return ContinuousController.instance.StartCoroutine(CardEffectCommons.DigivolveIntoHandOrTrashCard(
                        targetPermanent: card.PermanentOfThisCard(),
                        cardCondition: CanSelectCardCondition,
                        payCost: true,
                        reduceCostTuple: (reduceCost: 2, reduceCostCardCondition: null),
                        fixedCostTuple: null,
                        ignoreDigivolutionRequirementFixedCost: -1,
                        isHand: false,
                        activateClass: activateClass,
                        successProcess: null));
                }
            }

            #endregion

            #region Inherit

            if (timing == EffectTiming.None)
            {
                bool Condition()
                {
                    return CardEffectCommons.IsExistOnBattleAreaDigimon(card)
                        && CardEffectCommons.IsOwnerTurn(card);
                }

                cardEffects.Add(CardEffectFactory.ChangeSelfDPStaticEffect(
                    changeValue: 2000,
                    isInheritedEffect: true,
                    card: card,
                    condition: Condition));
            }

            #endregion

            return cardEffects;
        }
    }
}