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

//Raging Serpentine
namespace DCGO.CardEffects.BT21
{
    public class BT21_093 : CEntity_Effect
    {
        public override List<ICardEffect> CardEffects(EffectTiming timing, CardSource card)
        {
            List<ICardEffect> cardEffects = new List<ICardEffect>();

            #region Reduce Play Cost

            if (timing == EffectTiming.BeforePayCost)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Reduce Play Cost -4", CanUseCondition, card);
                activateClass.SetUpActivateClass(null, ActivateCoroutine, -1, false, EffectDiscription());
                activateClass.SetHashString("PlayCost-4_BT21_093");
                cardEffects.Add(activateClass);

                string EffectDiscription()
                {
                    return "When this card would be used, if your opponent has 3 or fewer security cards, reduce the use cost by ";
                }

                bool CanUseCondition(Hashtable hashtable)
                {
                    if (CardEffectCommons.CanTriggerWhenPermanentWouldPlay(hashtable, cardSource => cardSource == card))
                        return (card.Owner.Enemy.SecurityCards.Count <= 3);

                    return false;
                }

                IEnumerator ActivateCoroutine(Hashtable _hashtable)
                {
                    if (card.Owner.Enemy.SecurityCards.Count <= 3)
                    {
                        if (card.Owner.CanReduceCost(null, card))
                        {
                            ContinuousController.instance.PlaySE(GManager.instance.GetComponent<Effects>().BuffSE);
                        }

                        ChangeCostClass changeCostClass = new ChangeCostClass();
                        changeCostClass.SetUpICardEffect("Play Cost -4", CanUseCondition1, 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 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))
                                    {
                                        Cost -= 4;
                                    }
                                }
                            }

                            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;
                        }

                        yield return null;
                    }
                }
            }

            if (timing == EffectTiming.None)
            {
                ChangeCostClass changeCostClass = new ChangeCostClass();
                changeCostClass.SetUpICardEffect("Play Cost -4", 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 (CardEffectCommons.IsExistOnHand(card))
                    {
                        if (card.Owner.Enemy.SecurityCards.Count <= 3)
                        {
                            return true;
                        }
                    }

                    return false;
                }

                int ChangeCost(CardSource cardSource, int Cost, SelectCardEffect.Root root, List<Permanent> targetPermanents)
                {
                    if (CardSourceCondition(cardSource))
                    {
                        if (RootCondition(root))
                        {
                            Cost -= 4;
                        }
                    }

                    return Cost;
                }

                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 Shared Main/Security Effect

            bool SelectPermanentCondition(Permanent permanent)
            {
                if (CardEffectCommons.IsPermanentExistsOnOpponentBattleAreaDigimon(permanent, card))
                {
                    if (CardEffectCommons.IsMaxDP(permanent, card.Owner.Enemy, null))
                    {
                        return true;
                    }
                }
                return false;
            }

            IEnumerator SharedActivateCoroutine(Hashtable hashtable, ActivateClass activateClass)
            {
                if (CardEffectCommons.HasMatchConditionPermanent(SelectPermanentCondition))
                {
                    int maxCount = Math.Min(1, CardEffectCommons.MatchConditionPermanentCount(SelectPermanentCondition));
                    SelectPermanentEffect selectPermanentEffect = GManager.instance.GetComponent<SelectPermanentEffect>();

                    selectPermanentEffect.SetUp(
                        selectPlayer: card.Owner,
                        canTargetCondition: SelectPermanentCondition,
                        canTargetCondition_ByPreSelecetedList: null,
                        canEndSelectCondition: null,
                        maxCount: maxCount,
                        canNoSelect: false,
                        canEndNotMax: false,
                        selectPermanentCoroutine: null,
                        afterSelectPermanentCoroutine: null,
                        mode: SelectPermanentEffect.Mode.Destroy,
                        cardEffect: activateClass);
                    selectPermanentEffect.SetUpCustomMessage("Select 1 Digimon to delete", "The opponent is selecting 1 Digimon to delete");
                    yield return ContinuousController.instance.StartCoroutine(selectPermanentEffect.Activate());
                }
            }

            #endregion

            #region Main

            if (timing == EffectTiming.OptionSkill)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Delete 1 of your opponent's Digimon with the highest DP", CanUseCondition, card);
                activateClass.SetUpActivateClass(null, ActivateCoroutine, -1, false, EffectDiscription());
                cardEffects.Add(activateClass);

                string EffectDiscription()
                {
                    return "[Main] Delete 1 of your opponent's highest DP Digimon. Then, place this card in the battle area.";
                }

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

                IEnumerator ActivateCoroutine(Hashtable hashtable)
                {
                    yield return SharedActivateCoroutine(hashtable, activateClass);
                    yield return ContinuousController.instance.StartCoroutine(CardEffectCommons.PlaceDelayOptionCards(card: card, cardEffect: activateClass));
                }
            }

            #endregion

            #region All Turns - Delay

            if (timing == EffectTiming.OnLoseSecurity)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("1 of your [Reptile]/[Dragonkin] trait Digimon may digivolve", CanUseCondition, card);
                activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, -1, true, EffectDiscription());
                cardEffects.Add(activateClass);

                string EffectDiscription()
                {
                    return "[All Turns] When your opponent's security stack is removed from, <Delay> (After this card is placed, by trashing it the next turn or later, activate the effect below).\r\n・1 of your [Reptile]/[Dragonkin] trait Digimon may digivolve into a [Reptile]/[Dragonkin] trait Digimon card in the hand without paying the cost.\r\n";
                }

                bool CanUseCondition(Hashtable hashtable)
                {
                    if (CardEffectCommons.CanTriggerWhenLoseSecurity(hashtable, player => player == card.Owner.Enemy))
                    {
                        if (CardEffectCommons.CanDeclareOptionDelayEffect(card))
                        {
                            return true;
                        }
                    }
                    return false;
                }

                bool CanActivateCondition(Hashtable hashtable)
                {
                    if (CardEffectCommons.IsExistOnBattleArea(card))
                    {
                        if (CardEffectCommons.HasMatchConditionOwnersPermanent(card, CanSelectPermanent))
                        {
                            return true;
                        }
                    }
                    return false;
                }

                bool CanSelectPermanent(Permanent permanent)
                {
                    if (CardEffectCommons.IsPermanentExistsOnOwnerBattleAreaDigimon(permanent, card))
                    {
                        if (permanent.TopCard.EqualsTraits("Reptile") || permanent.TopCard.EqualsTraits("Dragonkin"))
                        {
                            foreach (CardSource cardSource in card.Owner.HandCards)
                            {
                                if (CanSelectCardCondition(cardSource))
                                {
                                    if (cardSource.CanPlayCardTargetFrame(permanent.PermanentFrame, true, activateClass))
                                    {
                                        return true;
                                    }
                                }
                            }
                        }
                    }
                    return false;
                }

                bool CanSelectCardCondition(CardSource cardSource)
                {
                    return cardSource.EqualsTraits("Reptile") || cardSource.EqualsTraits("Dragonkin");
                }

                IEnumerator ActivateCoroutine(Hashtable hashtable)
                {
                    bool delaySuccessful = false;

                    yield return ContinuousController.instance.StartCoroutine(CardEffectCommons.DeletePeremanentAndProcessAccordingToResult(targetPermanents: new List<Permanent>() { card.PermanentOfThisCard() }, activateClass: activateClass, successProcess: permanents => SuccessProcess(), failureProcess: null));

                    IEnumerator SuccessProcess()
                    {
                        delaySuccessful = true;
                        yield return null;
                    }

                    if (delaySuccessful)
                    {
                        if (CardEffectCommons.HasMatchConditionOwnersPermanent(card, CanSelectPermanent))
                        {
                            Permanent selectedDigimon = null;
                            int maxCount = Math.Min(1, CardEffectCommons.MatchConditionOwnersPermanentCount(card, CanSelectPermanent));
                            SelectPermanentEffect selectPermanentEffect = GManager.instance.GetComponent<SelectPermanentEffect>();
                            selectPermanentEffect.SetUp(
                                selectPlayer: card.Owner,
                                canTargetCondition: CanSelectPermanent,
                                canTargetCondition_ByPreSelecetedList: null,
                                canEndSelectCondition: null,
                                maxCount: maxCount,
                                canNoSelect: true,
                                canEndNotMax: false,
                                selectPermanentCoroutine: SelectPermanentCoroutine,
                                afterSelectPermanentCoroutine: null,
                                mode: SelectPermanentEffect.Mode.Custom,
                                cardEffect: activateClass);
                            selectPermanentEffect.SetUpCustomMessage("Select 1 Digimon to digivolve", "The opponent is selecting 1 Digimon to digivolve");

                            yield return ContinuousController.instance.StartCoroutine(selectPermanentEffect.Activate());
                            IEnumerator SelectPermanentCoroutine(Permanent permanent)
                            {
                                selectedDigimon = permanent;
                                yield return null;
                            }

                            if (selectedDigimon != null)
                            {
                                yield return ContinuousController.instance.StartCoroutine(CardEffectCommons.DigivolveIntoHandOrTrashCard(
                                    targetPermanent: selectedDigimon,
                                    cardCondition: CanSelectCardCondition,
                                    payCost: false,
                                    reduceCostTuple: null,
                                    fixedCostTuple: null,
                                    ignoreDigivolutionRequirementFixedCost: -1,
                                    isHand: true,
                                    activateClass: activateClass,
                                    successProcess: null));
                            }
                        }
                    }                    
                }
            }

            #endregion

            #region Security

            if (timing == EffectTiming.SecuritySkill)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Delete 1 of your opponent's Digimon with the highest DP", CanUseCondition, card);
                activateClass.SetUpActivateClass(null, hashtable => SharedActivateCoroutine(hashtable, activateClass), -1, false, EffectDiscription());
                activateClass.SetIsSecurityEffect(true);
                cardEffects.Add(activateClass);

                string EffectDiscription()
                {
                    return "[Security] Delete 1 of your opponent's Digimon with the highest DP.";
                }

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

            #endregion

            return cardEffects;
        }
    }
}