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

namespace DCGO.CardEffects.EX2
{
    public class EX2_041 : CEntity_Effect
    {
        public override List<ICardEffect> CardEffects(EffectTiming timing, CardSource card)
        {
            List<ICardEffect> cardEffects = new List<ICardEffect>();

            if (timing == EffectTiming.None)
            {
                ChangeCostClass changeCostClass = new ChangeCostClass();
                changeCostClass.SetUpICardEffect($"Play Cost -2", CanUseCondition, card);
                changeCostClass.SetUpChangeCostClass(changeCostFunc: ChangeCost, cardSourceCondition: CardSourceCondition, rootCondition: RootCondition, isUpDown: isUpDown, isCheckAvailability: () => false, isChangePayingCost: () => true);

                cardEffects.Add(changeCostClass);

                bool CanUseCondition(Hashtable hashtable)
                {
                    if (card.Owner.HandCards.Contains(card))
                    {
                        if (CardEffectCommons.HasMatchConditionOwnersPermanent(card, (permanent) => permanent.TopCard.CardNames.Contains("Alice McCoy")))
                        {
                            return true;
                        }

                        if (CardEffectCommons.HasMatchConditionOwnersPermanent(card, (permanent) => permanent.TopCard.CardNames.Contains("AliceMcCoy")))
                        {
                            return true;
                        }
                    }

                    return false;
                }



                int ChangeCost(CardSource cardSource, int Cost, SelectCardEffect.Root root, List<Permanent> targetPermanents)
                {
                    if (CardSourceCondition(cardSource))
                    {
                        if (RootCondition(root))
                        {
                            if (PermanentsCondition(targetPermanents))
                            {
                                Cost -= 2;
                            }
                        }
                    }

                    return Cost;
                }

                bool PermanentsCondition(List<Permanent> targetPermanents)
                {
                    if (targetPermanents == null)
                    {
                        return true;
                    }

                    else
                    {
                        if (targetPermanents.Count((targetPermanent) => targetPermanent != null) == 0)
                        {
                            return true;
                        }
                    }

                    return false;
                }

                bool CardSourceCondition(CardSource cardSource)
                {
                    return cardSource == card;
                }

                bool RootCondition(SelectCardEffect.Root root)
                {
                    if (root == SelectCardEffect.Root.Hand)
                    {
                        return true;
                    }

                    return false;
                }

                bool isUpDown()
                {
                    return true;
                }
            }

            if (timing == EffectTiming.OnDestroyedAnyone)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Trash 3 cards from deck top and return 1 card from trash to hand", CanUseCondition, card);
                activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, -1, false, EffectDiscription());
                cardEffects.Add(activateClass);

                string EffectDiscription()
                {
                    return "[On Deletion] Trash the top 3 cards of your deck. Then, return 1 purple Digimon card or 1 purple Tamer card from your trash to your hand.";
                }

                bool CanSelectCardCondition(CardSource cardSource)
                {
                    if (cardSource != null)
                    {
                        if (cardSource.Owner == card.Owner)
                        {
                            if (cardSource.HasCardColor(CardColor.Purple))
                            {
                                if (cardSource.IsDigimon)
                                {
                                    return true;
                                }

                                if (cardSource.IsTamer)
                                {
                                    return true;
                                }
                            }
                        }
                    }

                    return false;
                }

                bool CanUseCondition(Hashtable hashtable)
                {
                    return CardEffectCommons.CanTriggerOnDeletion(hashtable, card, activateClass);
                }

                bool CanActivateCondition(Hashtable hashtable)
                {
                    if (CardEffectCommons.IsExistOnTrash(card))
                    {
                        return true;
                    }

                    return false;
                }

                IEnumerator ActivateCoroutine(Hashtable _hashtable)
                {
                    yield return ContinuousController.instance.StartCoroutine(new IAddTrashCardsFromLibraryTop(3, card.Owner, activateClass).AddTrashCardsFromLibraryTop());

                    if (CardEffectCommons.HasMatchConditionOwnersCardInTrash(card, CanSelectCardCondition))
                    {
                        int maxCount = Math.Min(1, card.Owner.TrashCards.Count(CanSelectCardCondition));

                        SelectCardEffect selectCardEffect = GManager.instance.GetComponent<SelectCardEffect>();

                        selectCardEffect.SetUp(
                            canTargetCondition: CanSelectCardCondition,
                            canTargetCondition_ByPreSelecetedList: null,
                            canEndSelectCondition: null,
                            canNoSelect: () => false,
                            selectCardCoroutine: null,
                            afterSelectCardCoroutine: null,
                            message: "Select 1 card to add to your hand.",
                            maxCount: maxCount,
                            canEndNotMax: false,
                            isShowOpponent: true,
                            mode: SelectCardEffect.Mode.AddHand,
                            root: SelectCardEffect.Root.Trash,
                            customRootCardList: null,
                            canLookReverseCard: true,
                            selectPlayer: card.Owner,
                            cardEffect: activateClass);

                        yield return ContinuousController.instance.StartCoroutine(selectCardEffect.Activate());
                    }
                }
            }

            return cardEffects;
        }
    }
}