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

//Gankoomon
namespace DCGO.CardEffects.BT23
{
    public class BT23_057 : CEntity_Effect
    {
        public override List<ICardEffect> CardEffects(EffectTiming timing, CardSource card)
        {
            List<ICardEffect> cardEffects = new List<ICardEffect>();

            #region Alternate Digivolve Condition
            if (timing == EffectTiming.None)
            {
                bool PermanentCondition(Permanent targetPermanent)
                {
                    return targetPermanent.TopCard.IsLevel5 &&
                           targetPermanent.TopCard.HasCSTraits;
                }

                cardEffects.Add(CardEffectFactory.AddSelfDigivolutionRequirementStaticEffect(
                    permanentCondition: PermanentCondition, digivolutionCost: 3, ignoreDigivolutionRequirement: false,
                    card: card, condition: null));
            }
            #endregion

            bool CanSelectReturnCardCondition(CardSource cardSource)
            {
                return cardSource.ContainsCardName("Huckmon") ||
                       cardSource.ContainsCardName("Sistermon") ||
                       cardSource.ContainsCardName("Jesmon");
            }

            #region Before Pay Cost - Condition Effect

            if (timing == EffectTiming.BeforePayCost)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Return 3 cards with [Huckmon], [Sistermon] or [Jesmon] in their names to get Play Cost -5", CanUseCondition, card);
                activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, -1, false, EffectDiscription());
                activateClass.SetHashString("PlayCost-5_BT12_057");
                cardEffects.Add(activateClass);

                string EffectDiscription()
                {
                    return "When this card would be played, by returning 3 cards with [Huckmon], [Sistermon] or [Jesmon] in their names from your trash to the top or bottom of the deck, reduce the play cost by 5.";
                }

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

                    return false;
                }

                bool CanNoSelect(CardSource cardSource)
                {
                    if (cardSource != null)
                    {
                        if (cardSource.PayingCost(SelectCardEffect.Root.Hand, null, checkAvailability: false) > cardSource.Owner.MaxMemoryCost)
                        {
                            return false;
                        }
                    }

                    return true;
                }

                bool CanUseCondition(Hashtable hashtable)
                {
                    return CardEffectCommons.CanTriggerWhenPermanentWouldPlay(hashtable, CardCondition);
                }

                bool CanActivateCondition(Hashtable hashtable)
                {
                    if (CardEffectCommons.IsExistOnHand(card))
                    {
                        if (CardEffectCommons.MatchConditionOwnersCardCountInTrash(card, CanSelectReturnCardCondition) >= 3)
                        {
                            return true;
                        }
                    }

                    return false;
                }

                IEnumerator ActivateCoroutine(Hashtable _hashtable)
                {
                    List<CardSource> selectedCards = new List<CardSource>();

                    if (CardEffectCommons.MatchConditionOwnersCardCountInTrash(card, CanSelectReturnCardCondition) >= 3)
                    {
                        bool noSelect = CanNoSelect(CardEffectCommons.GetCardFromHashtable(_hashtable));

                        int maxCount = 3;

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

                        selectCardEffect.SetUp(
                            canTargetCondition: CanSelectReturnCardCondition,
                            canTargetCondition_ByPreSelecetedList: null,
                            canEndSelectCondition: null,
                            canNoSelect: () => noSelect,
                            selectCardCoroutine: SelectCardCoroutine,
                            afterSelectCardCoroutine: null,
                            message: "Select cards to add to the top your deck\n(cards will be placed back to the top of the deck so that cards with lower numbers are on top).",
                            maxCount: maxCount,
                            canEndNotMax: false,
                            isShowOpponent: true,
                            mode: SelectCardEffect.Mode.Custom,
                            root: SelectCardEffect.Root.Trash,
                            customRootCardList: null,
                            canLookReverseCard: true,
                            selectPlayer: card.Owner,
                            cardEffect: activateClass);

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

                        IEnumerator SelectCardCoroutine(CardSource cardSource)
                        {
                            selectedCards.Add(cardSource);
                            yield return null;
                        }

                        if (selectedCards.Count == 3)
                        {
                            selectedCards.Reverse();
                            yield return ContinuousController.instance.StartCoroutine(CardObjectController.AddLibraryTopCards(selectedCards));
                        }
                    }

                    if (card.Owner.CanReduceCost(null, card))
                    {
                        ContinuousController.instance.PlaySE(GManager.instance.GetComponent<Effects>().BuffSE);
                    }

                    ChangeCostClass changeCostClass = new ChangeCostClass();
                    changeCostClass.SetUpICardEffect("Play Cost -1", CanUseCondition1, card);
                    changeCostClass.SetUpChangeCostClass(changeCostFunc: ChangeCost, cardSourceCondition: CardSourceCondition, rootCondition: RootCondition, isUpDown: isUpDown, isCheckAvailability: () => false, isChangePayingCost: () => true);
                    card.Owner.UntilCalculateFixedCostEffect.Add((_timing) => changeCostClass);

                    bool CanUseCondition1(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))
                                {
                                    int targetCost = 0;

                                    if (selectedCards.Count >= 3)
                                        targetCost += 5;

                                    Cost -= targetCost;
                                }
                            }
                        }

                        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)
                    {
                        return true;
                    }

                    bool isUpDown()
                    {
                        return true;
                    }

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

            #endregion

            #region Reduce Play Cost - Not Shown

            if (timing == EffectTiming.None)
            {
                ChangeCostClass changeCostClass = new ChangeCostClass();
                changeCostClass.SetUpICardEffect("Play Cost -5", CanUseCondition, card);
                changeCostClass.SetUpChangeCostClass(changeCostFunc: ChangeCost, cardSourceCondition: CardSourceCondition, rootCondition: RootCondition, isUpDown: isUpDown, isCheckAvailability: () => true, isChangePayingCost: () => true);
                changeCostClass.SetNotShowUI(true);
                cardEffects.Add(changeCostClass);

                bool CanUseCondition(Hashtable hashtable)
                {
                    if (card.Owner.HandCards.Contains(card))
                    {
                        ICardEffect activateClass = card.EffectList(EffectTiming.BeforePayCost).Find(cardEffect => cardEffect.EffectName == "Return 3 cards with [Huckmon], [Sistermon] or [Jesmon] in their names to get Play Cost -5");

                        if (activateClass != null)
                        {
                            if (CardEffectCommons.MatchConditionOwnersCardCountInTrash(card, CanSelectReturnCardCondition) >= 3)
                            {
                                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))
                            {
                                int trashCount = CardEffectCommons.MatchConditionOwnersCardCountInTrash(card, CanSelectReturnCardCondition);
                                int targetCount = 0;

                                if (trashCount >= 3)
                                    targetCount += 5;

                                Cost -= targetCount;
                            }
                        }
                    }

                    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)
                {
                    if (cardSource != null)
                    {
                        if (cardSource == card)
                        {
                            return true;
                        }
                    }

                    return false;
                }

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

                bool isUpDown()
                {
                    return true;
                }
            }

            #endregion

            #region OP/WD Shared

            string SharedEffectDiscription(string tag)
            {
                return $"[{tag}] You may play 1 [Hinukamuy] Token. (Digimon/White/6000 DP/<Alliance> <Reboot> <Blocker>) Then, delete 1 of your opponent's Digimon with a play cost of 6 or less. For each of your other Digimon, add 3 to this effect's play cost maximum.";
            }

            bool SharedCanActivateCondition(Hashtable hashtable)
            {
                if (CardEffectCommons.IsExistOnBattleAreaDigimon(card))
                {
                    if (card.Owner.fieldCardFrames.Count((frame) => frame.IsEmptyFrame() && frame.IsBattleAreaFrame()) >= 1)
                    {
                        return true;
                    }
                }

                return false;
            }

            bool SharedCanSelectPermanentCondition(Permanent permanent)
            {
                if (CardEffectCommons.IsPermanentExistsOnOpponentBattleAreaDigimon(permanent, card))
                {
                    int maxCost = 6;

                    maxCost += 3 * card.Owner.GetBattleAreaPermanents().Count(permanent => permanent.IsDigimon && permanent != card.PermanentOfThisCard());

                    if (permanent.TopCard.GetCostItself <= maxCost)
                    {
                        if (permanent.TopCard.HasPlayCost)
                        {
                            return true;
                        }
                    }
                }

                return false;
            }

            IEnumerator SharedActivateCoroutine(Hashtable hashtable, ActivateClass activateClass)
            {
                yield return ContinuousController.instance.StartCoroutine(CardEffectCommons.PlayHinukamuyToken(activateClass));

                if (CardEffectCommons.HasMatchConditionPermanent(SharedCanSelectPermanentCondition))
                {
                    SelectPermanentEffect selectPermanentEffect = GManager.instance.GetComponent<SelectPermanentEffect>();

                    selectPermanentEffect.SetUp(
                        selectPlayer: card.Owner,
                        canTargetCondition: SharedCanSelectPermanentCondition,
                        canTargetCondition_ByPreSelecetedList: null,
                        canEndSelectCondition: null,
                        maxCount: 1,
                        canNoSelect: false,
                        canEndNotMax: false,
                        selectPermanentCoroutine: null,
                        afterSelectPermanentCoroutine: null,
                        mode: SelectPermanentEffect.Mode.Destroy,
                        cardEffect: activateClass);

                    yield return ContinuousController.instance.StartCoroutine(selectPermanentEffect.Activate());
                }
            }
            #endregion

            #region On Play

            if (timing == EffectTiming.OnEnterFieldAnyone)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Play token", CanUseCondition, card);
                activateClass.SetUpActivateClass(SharedCanActivateCondition, (hashTable) => SharedActivateCoroutine(hashTable, activateClass), -1, true, SharedEffectDiscription("On Play"));
                cardEffects.Add(activateClass);

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

            #endregion

            #region When Digivolving

            if (timing == EffectTiming.OnEnterFieldAnyone)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Play token", CanUseCondition, card);
                activateClass.SetUpActivateClass(SharedCanActivateCondition, (hashTable) => SharedActivateCoroutine(hashTable, activateClass), -1, true, SharedEffectDiscription("When Digivolving"));
                cardEffects.Add(activateClass);

                bool CanUseCondition(Hashtable hashtable)
                {
                    return CardEffectCommons.IsExistOnBattleAreaDigimon(card) &&
                           CardEffectCommons.CanTriggerWhenDigivolving(hashtable, card);
                }
            }
            #endregion

            return cardEffects;
        }
    }
}