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

public class EX5_072 : CEntity_Effect
{
    public override List<ICardEffect> CardEffects(EffectTiming timing, CardSource card)
    {
        List<ICardEffect> cardEffects = new List<ICardEffect>();

        if (timing == EffectTiming.None)
        {
            IgnoreColorConditionClass ignoreColorConditionClass = new IgnoreColorConditionClass();
            ignoreColorConditionClass.SetUpICardEffect("Ignore color requirements", CanUseCondition, card);
            ignoreColorConditionClass.SetUpIgnoreColorConditionClass(cardCondition: CardCondition);
            cardEffects.Add(ignoreColorConditionClass);

            bool PermanentCondition(Permanent permanent)
            {
                if (CardEffectCommons.IsPermanentExistsOnOwnerBattleAreaDigimon(permanent, card))
                {
                    if (permanent.TopCard.CardTraits.Contains("Deva"))
                    {
                        return true;
                    }

                    if (permanent.TopCard.CardTraits.Contains("Four Sovereigns"))
                    {
                        return true;
                    }

                    if (permanent.TopCard.CardTraits.Contains("FourSovereigns"))
                    {
                        return true;
                    }
                }

                return false;
            }

            bool CanUseCondition(Hashtable hashtable)
            {
                if (card.Owner.GetBattleAreaDigimons().Some(PermanentCondition))
                {
                    return true;
                }

                return false;
            }

            bool CardCondition(CardSource cardSource)
            {
                if (cardSource == card)
                {
                    return true;
                }

                return false;
            }
        }

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

            int count()
            {
                List<CardSource> filteredTrahCards = card.Owner.TrashCards.Filter(cardSource =>
                cardSource.CardTraits.Contains("Deva")
                || cardSource.CardTraits.Contains("Four Sovereigns")
                || cardSource.CardTraits.Contains("FourSovereigns"));

                bool end = false;

                while (true)
                {
                    if (filteredTrahCards.Count == 0)
                    {
                        end = true;
                    }

                    if (end)
                    {
                        break;
                    }

                    for (int i = 0; i < filteredTrahCards.Count; i++)
                    {
                        CardSource searchTargetCard = filteredTrahCards[i];

                        if (filteredTrahCards.Some(cardSource => cardSource != searchTargetCard && cardSource.HasSameCardName(searchTargetCard)))
                        {
                            filteredTrahCards.Remove(searchTargetCard);
                            break;
                        }

                        if (i == filteredTrahCards.Count - 1)
                        {
                            end = true;
                        }
                    }
                }

                return filteredTrahCards.Count;
            }

            bool CanUseCondition(Hashtable hashtable)
            {
                return true;
            }

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

                return Cost;
            }

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

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

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

            bool isUpDown()
            {
                return true;
            }
        }

        if (timing == EffectTiming.OptionSkill)
        {
            ActivateClass activateClass = new ActivateClass();
            activateClass.SetUpICardEffect(card.BaseENGCardNameFromEntity, CanUseCondition, card);
            activateClass.SetUpActivateClass(null, ActivateCoroutine, -1, false, EffectDiscription());
            cardEffects.Add(activateClass);

            string EffectDiscription()
            {
                return "[Main] You may play 1 Digimon card with [Fanglongmon] in its name from your hand without paying the play cost.";
            }

            bool CanSelectCardCondition(CardSource cardSource)
            {
                if (cardSource.IsDigimon)
                {
                    if (cardSource.ContainsCardName("Fanglongmon"))
                    {
                        if (CardEffectCommons.CanPlayAsNewPermanent(cardSource: cardSource, payCost: false, cardEffect: activateClass))
                        {
                            return true;
                        }
                    }
                }

                return false;
            }

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

            IEnumerator ActivateCoroutine(Hashtable _hashtable)
            {
                if (card.Owner.HandCards.Count(CanSelectCardCondition) >= 1)
                {
                    List<CardSource> selectedCards = new List<CardSource>();

                    int maxCount = 1;

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

                    selectHandEffect.SetUp(
                        selectPlayer: card.Owner,
                        canTargetCondition: CanSelectCardCondition,
                        canTargetCondition_ByPreSelecetedList: null,
                        canEndSelectCondition: null,
                        maxCount: maxCount,
                        canNoSelect: true,
                        canEndNotMax: false,
                        isShowOpponent: true,
                        selectCardCoroutine: SelectCardCoroutine,
                        afterSelectCardCoroutine: null,
                        mode: SelectHandEffect.Mode.Custom,
                        cardEffect: activateClass);

                    selectHandEffect.SetUpCustomMessage("Select 1 card to play.", "The opponent is selecting 1 card to play.");
                    selectHandEffect.SetUpCustomMessage_ShowCard("Played Card");

                    yield return StartCoroutine(selectHandEffect.Activate());

                    IEnumerator SelectCardCoroutine(CardSource cardSource)
                    {
                        selectedCards.Add(cardSource);

                        yield return null;
                    }

                    yield return ContinuousController.instance.StartCoroutine(CardEffectCommons.PlayPermanentCards(
                        cardSources: selectedCards,
                        activateClass: activateClass,
                        payCost: false,
                        isTapped: false,
                        root: SelectCardEffect.Root.Hand,
                        activateETB: true));
                }
            }
        }


        if (timing == EffectTiming.SecuritySkill)
        {
            ActivateClass activateClass = new ActivateClass();
            activateClass.SetUpICardEffect($"Return 1 card from trash to hand and add this card to hand", CanUseCondition, card);
            activateClass.SetUpActivateClass(null, ActivateCoroutine, -1, false, EffectDiscription());
            activateClass.SetIsSecurityEffect(true);
            cardEffects.Add(activateClass);

            string EffectDiscription()
            {
                return "[Security] Return 1 card with [Fanglongmon] in its name from your trash to the hand. Then, add this card to the hand.";
            }

            bool CanSelectCardCondition(CardSource cardSource)
            {
                return cardSource.ContainsCardName("Fanglongmon");
            }

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

            IEnumerator ActivateCoroutine(Hashtable _hashtable)
            {
                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());
                }

                yield return ContinuousController.instance.StartCoroutine(CardEffectCommons.AddThisCardToHand(card, activateClass));
            }
        }

        return cardEffects;
    }
}