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

// Digitamamon
namespace DCGO.CardEffects.EX9
{
    public class EX9_063 : CEntity_Effect
    {
        public override List<ICardEffect> CardEffects(EffectTiming timing, CardSource card)
        {
            List<ICardEffect> cardEffects = new List<ICardEffect>();

            #region Nanimon Alternate Digivolution Requirement

            if (timing == EffectTiming.None)
            {
                static bool PermanentCondition(Permanent targetPermanent)
                {
                    return targetPermanent.TopCard.EqualsCardName("Nanimon");
                }
                cardEffects.Add(CardEffectFactory.AddSelfDigivolutionRequirementStaticEffect(permanentCondition: PermanentCondition, digivolutionCost: 3, ignoreDigivolutionRequirement: false, card: card, condition: null));
            }

            #endregion

            #region DM Alternate Digivolution Requirement

            if (timing == EffectTiming.None)
            {
                static bool PermanentCondition(Permanent targetPermanent)
                {
                    return targetPermanent.TopCard.IsLevel4 &&
                        targetPermanent.TopCard.EqualsTraits("DM");
                }

                cardEffects.Add(CardEffectFactory.AddSelfDigivolutionRequirementStaticEffect(permanentCondition: PermanentCondition, digivolutionCost: 4, ignoreDigivolutionRequirement: false, card: card, condition: null));
            }

            #endregion

            #region Ver4 Digivolution Cost Reduction

            if (timing == EffectTiming.BeforePayCost)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Reduce the digivolution cost by 1 for each face-down source", CanUseCondition, card);
                activateClass.SetUpActivateClass(null, ActivateCoroutine, -1, false, EffectDiscription());
                cardEffects.Add(activateClass);

                string EffectDiscription()
                    => "When any of your [Ver.4] trait Digimon would digivolve into this card, for each of their face-down digivolution cards, reduce the digivolution cost by 1.";

                bool PermanentEvoCondition(Permanent permanent)
                {
                    if (CardEffectCommons.IsPermanentExistsOnOwnerBattleAreaDigimon(permanent, card))
                    {
                        if (permanent.TopCard.EqualsTraits("Ver.4"))
                        {
                            return card.CanPlayCardTargetFrame(permanent.PermanentFrame, true, activateClass);
                        }
                    }
                    return false;
                }

                bool CardCondition(CardSource source)
                {
                    return (source == card);
                }

                bool CanUseCondition(Hashtable hashtable)
                {
                    if (CardEffectCommons.HasMatchConditionOwnersPermanent(card, PermanentEvoCondition))
                    {
                        if (CardEffectCommons.CanTriggerWhenPermanentWouldDigivolve(hashtable, PermanentEvoCondition, CardCondition))
                        {
                            return true;
                        }
                    }

                    return false;
                }

                IEnumerator ActivateCoroutine(Hashtable _hashtable)
                {
                    Hashtable hashtable = new Hashtable();
                    hashtable.Add("CardEffect", activateClass);

                    Permanent targetPermanent = CardEffectCommons.GetPermanentsFromHashtable(_hashtable)[0];

                    ContinuousController.instance.PlaySE(GManager.instance.GetComponent<Effects>().BuffSE);

                    ChangeCostClass changeCostClass = new ChangeCostClass();
                    changeCostClass.SetUpICardEffect($"Digivolution Cost -{ReduceCost()}", CanUseCondition, card);
                    changeCostClass.SetUpChangeCostClass(changeCostFunc: ChangeCost, cardSourceCondition: CardSourceCondition, rootCondition: RootCondition, isUpDown: isUpDown, isCheckAvailability: () => false, isChangePayingCost: () => true);
                    card.Owner.UntilCalculateFixedCostEffect.Add((_timing) => changeCostClass);

                    yield return ContinuousController.instance.StartCoroutine(CardEffectCommons.ShowReducedCost(_hashtable));

                    bool CanUseCondition(Hashtable hashtable)
                    {
                        return true;
                    }

                    int ReduceCost()
                    {
                        return targetPermanent.DigivolutionCards.Filter(x => x.IsFlipped).Count;
                    }

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

                        return Cost;
                    }

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

                        return false;
                    }

                    bool PermanentCondition(Permanent targetPermanent)
                    {
                        if (targetPermanent.TopCard != null)
                        {
                            return PermanentEvoCondition(targetPermanent);
                        }

                        return false;
                    }

                    bool CardSourceCondition(CardSource cardSource)
                    {
                        if (cardSource != null)
                        {
                            return CardCondition(cardSource);
                        }

                        return false;
                    }

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

                    bool isUpDown()
                    {
                        return true;
                    }
                }
            }

            #endregion

            #region Scapegoat

            if (timing == EffectTiming.WhenPermanentWouldBeDeleted)
            {
                cardEffects.Add(CardEffectFactory.ScapegoatSelfEffect(isInheritedEffect: false, card: card, condition: null, effectName: "<Scapegoat>", effectDiscription: null));
            }

            #endregion

            #region When Digivolving

            if (timing == EffectTiming.OnEnterFieldAnyone)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Trash bottom face down source card, play a digimon from trash", CanUseCondition, card);
                activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, 1, true, EffectDiscription());
                activateClass.SetHashString("EX9_063_PlayFromTrash");
                cardEffects.Add(activateClass);

                string EffectDiscription()
                {
                    return "[When Digivolving] [Once Per Turn] By trashing this Digimon's bottom face-down digivolution card, you may play 1 play cost 4 or lower [DM] trait Digimon card from your trash without paying the cost.";
                }

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

                bool CanActivateCondition(Hashtable hashtable)
                {
                    return CardEffectCommons.IsExistOnBattleAreaDigimon(card)
                        && card.PermanentOfThisCard().DigivolutionCards.Exists(x => x.IsFlipped);
                }

                bool CanSelectCardCondition(CardSource cardSource)
                {
                    return cardSource.IsDigimon && cardSource.EqualsTraits("DM") && cardSource.GetCostItself <= 4;
                }

                IEnumerator ActivateCoroutine(Hashtable hashtable)
                {
                    bool CanSelectBottomCardCondition(CardSource cardSource)
                    {
                        return cardSource.IsFlipped;
                    }

                    int cardEvoSources = card.PermanentOfThisCard().DigivolutionCards.Count;

                    yield return ContinuousController.instance.StartCoroutine(CardEffectCommons.TrashDigivolutionCardsFromTopOrBottom(
                        targetPermanent: card.PermanentOfThisCard(),
                        trashCount: 1,
                        isFromTop: false,
                        activateClass: activateClass,
                        cardCondition: CanSelectBottomCardCondition
                    ));

                    if (card.PermanentOfThisCard().DigivolutionCards.Count < cardEvoSources)
                    {
                        if (CardEffectCommons.HasMatchConditionOwnersCardInTrash(card, CanSelectCardCondition))
                        {
                            CardSource selectedCard = null;
                            int maxCount = Math.Min(1, CardEffectCommons.MatchConditionOwnersCardCountInTrash(card, CanSelectCardCondition));
                            SelectCardEffect selectCardEffect = GManager.instance.GetComponent<SelectCardEffect>();

                            selectCardEffect.SetUp(
                                        canTargetCondition: CanSelectCardCondition,
                                        canTargetCondition_ByPreSelecetedList: null,
                                        canEndSelectCondition: null,
                                        canNoSelect: () => true,
                                        selectCardCoroutine: SelectCardCoroutine,
                                        afterSelectCardCoroutine: null,
                                        message: "Select 1 [DM] digimon to play",
                                        maxCount: maxCount,
                                        canEndNotMax: true,
                                        isShowOpponent: true,
                                        mode: SelectCardEffect.Mode.Custom,
                                        root: SelectCardEffect.Root.Trash,
                                        customRootCardList: null,
                                        canLookReverseCard: true,
                                        selectPlayer: card.Owner,
                                        cardEffect: activateClass);

                            selectCardEffect.SetUpCustomMessage("Select 1 [DM] digimon to play", "The opponent is selecting 1 digimon to play.");
                            yield return StartCoroutine(selectCardEffect.Activate());

                            IEnumerator SelectCardCoroutine(CardSource cardSource)
                            {
                                selectedCard = cardSource;
                                yield return null;
                            }

                            if (selectedCard != null) yield return ContinuousController.instance.StartCoroutine(CardEffectCommons.PlayPermanentCards(cardSources: new List<CardSource> { selectedCard }, activateClass: activateClass, payCost: false, isTapped: false, root: SelectCardEffect.Root.Trash, activateETB: true));
                        }
                    }
                    
                }
            }

            #endregion

            #region When Attacking

            if (timing == EffectTiming.OnAllyAttack)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Trash bottom face down source card, play a digimon from trash", CanUseCondition, card);
                activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, 1, true, EffectDiscription());
                activateClass.SetHashString("EX9_063_PlayFromTrash");
                cardEffects.Add(activateClass);

                string EffectDiscription()
                {
                    return "[When Attacking] [Once Per Turn] By trashing this Digimon's bottom face-down digivolution card, you may play 1 play cost 4 or lower [DM] trait Digimon card from your trash without paying the cost.";
                }

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

                bool CanActivateCondition(Hashtable hashtable)
                {
                    return CardEffectCommons.IsExistOnBattleAreaDigimon(card)
                        && card.PermanentOfThisCard().DigivolutionCards.Exists(x => x.IsFlipped);
                }

                bool CanSelectCardCondition(CardSource cardSource)
                {
                    return cardSource.IsDigimon && cardSource.EqualsTraits("DM") && cardSource.GetCostItself <= 4;
                }

                IEnumerator ActivateCoroutine(Hashtable hashtable)
                {
                    yield return ContinuousController.instance.StartCoroutine(CardEffectCommons.TrashDigivolutionCardsFromTopOrBottom(targetPermanent: card.PermanentOfThisCard(), trashCount: 1, isFromTop: false, activateClass: activateClass));

                    if (CardEffectCommons.HasMatchConditionOwnersCardInTrash(card, CanSelectCardCondition))
                    {
                        CardSource selectedCard = null;
                        int maxCount = Math.Min(1, CardEffectCommons.MatchConditionOwnersCardCountInTrash(card, CanSelectCardCondition));
                        SelectCardEffect selectCardEffect = GManager.instance.GetComponent<SelectCardEffect>();

                        selectCardEffect.SetUp(
                                    canTargetCondition: CanSelectCardCondition,
                                    canTargetCondition_ByPreSelecetedList: null,
                                    canEndSelectCondition: null,
                                    canNoSelect: () => true,
                                    selectCardCoroutine: SelectCardCoroutine,
                                    afterSelectCardCoroutine: null,
                                    message: "Select 1 [DM] digimon to play",
                                    maxCount: maxCount,
                                    canEndNotMax: true,
                                    isShowOpponent: true,
                                    mode: SelectCardEffect.Mode.Custom,
                                    root: SelectCardEffect.Root.Trash,
                                    customRootCardList: null,
                                    canLookReverseCard: true,
                                    selectPlayer: card.Owner,
                                    cardEffect: activateClass);

                        selectCardEffect.SetUpCustomMessage("Select 1 [DM] digimon to play", "The opponent is selecting 1 digimon to play.");
                        yield return StartCoroutine(selectCardEffect.Activate());

                        IEnumerator SelectCardCoroutine(CardSource cardSource)
                        {
                            selectedCard = cardSource;
                            yield return null;
                        }

                        if (selectedCard != null) yield return ContinuousController.instance.StartCoroutine(CardEffectCommons.PlayPermanentCards(cardSources: new List<CardSource> { selectedCard }, activateClass: activateClass, payCost: false, isTapped: false, root: SelectCardEffect.Root.Trash, activateETB: true));
                    }
                }
            }

            #endregion

            #region ESS

            if (timing == EffectTiming.OnAllyAttack)
            {
                bool Condition()
                {
                    return CardEffectCommons.IsExistOnBattleArea(card);
                }

                cardEffects.Add(CardEffectFactory.AllianceSelfEffect(isInheritedEffect: true, card: card, condition: Condition));
            }

            #endregion

            return cardEffects;
        }
    }
}