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

// Veemon
namespace DCGO.CardEffects.BT22
{
    public class BT22_019 : CEntity_Effect
    {
        public override List<ICardEffect> CardEffects(EffectTiming timing, CardSource card)
        {
            List<ICardEffect> cardEffects = new List<ICardEffect>();

            #region Alternative Digivolution Condition

            if (timing == EffectTiming.None)
            {
                bool PermanentCondition(Permanent targetPermanent)
                {
                    return targetPermanent.TopCard.IsLevel2 && targetPermanent.TopCard.HasCSTraits;
                }

                cardEffects.Add(CardEffectFactory.AddSelfDigivolutionRequirementStaticEffect(
                    permanentCondition: PermanentCondition,
                    digivolutionCost: 0,
                    ignoreDigivolutionRequirement: false,
                    card: card,
                    condition: null)
                );
            }

            #endregion

            #region Your Turn

            if (timing == EffectTiming.BeforePayCost)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Digivolution Cost -1", CanUseCondition, card);
                activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, -1, false, EffectDiscription());
                activateClass.SetHashString("DigivoltuionCost-1_BT22_019");
                cardEffects.Add(activateClass);

                string EffectDiscription()
                {
                    return "[Your Turn] When this Digimon would digivolve into a Digimon card with [Veedramon] in its name, reduce the digivolution cost by 1.";
                }

                bool PermanentCondition(Permanent permanent)
                {
                    if (CardEffectCommons.IsPermanentExistsOnOwnerBattleAreaDigimon(permanent, card))
                    {
                        if (permanent == card.PermanentOfThisCard())
                        {
                            return true;
                        }
                    }

                    return false;
                }

                bool CardCondition(CardSource cardSource)
                {
                    return cardSource.IsDigimon && cardSource.ContainsCardName("Veedramon");
                }

                bool CanUseCondition(Hashtable hashtable)
                {
                    if (CardEffectCommons.IsExistOnBattleAreaDigimon(card))
                    {
                        if (CardEffectCommons.IsOwnerTurn(card))
                        {
                            if (CardEffectCommons.CanTriggerWhenPermanentWouldDigivolve(hashtable, PermanentCondition, CardCondition))
                            {
                                return true;
                            }
                        }
                    }

                    return false;
                }

                bool CanActivateCondition(Hashtable hashtable)
                {
                    return CardEffectCommons.IsExistOnBattleAreaDigimon(card);
                }

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

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

                    ChangeCostClass changeCostClass = new ChangeCostClass();
                    changeCostClass.SetUpICardEffect("Digivolution Cost -1", 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 -= 1;
                                }
                            }
                        }

                        return Cost;
                    }

                    bool PermanentsCondition(List<Permanent> targetPermanents)
                    {
                        if (targetPermanents != null)
                        {
                            if (targetPermanents.Count(PermanentCondition) >= 1)
                            {
                                return true;
                            }
                        }

                        return false;
                    }

                    bool PermanentCondition(Permanent targetPermanent)
                    {
                        if (targetPermanent.TopCard != null)
                        {
                            if (targetPermanent.TopCard.Owner == card.Owner)
                            {
                                if (targetPermanent.TopCard.Owner.GetBattleAreaPermanents().Contains(targetPermanent))
                                {
                                    return true;
                                }
                            }
                        }

                        return false;
                    }

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

                        return false;
                    }

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

                    bool isUpDown()
                    {
                        return true;
                    }
                }
            }

            #endregion

            #region ESS

            if (timing == EffectTiming.WhenRemoveField)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Suspend to prevent this Digimon from leaving", CanUseCondition, card);
                activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, 1, true, EffectDiscription());
                activateClass.SetHashString("Substitute_BT22_019");
                activateClass.SetIsInheritedEffect(true);
                cardEffects.Add(activateClass);

                string EffectDiscription()
                {
                    return "[All Turns] [Once Per Turn] When this Digimon with [Veedramon] in its name would leave the battle area by your opponent's effects, by suspending this Digimon, it doesn't leave.";
                }

                bool CanUseCondition(Hashtable hashtable)
                {
                    return CardEffectCommons.CanTriggerWhenRemoveField(hashtable, card) &&
                           CardEffectCommons.IsByEffect(hashtable, cardEffect => CardEffectCommons.IsOpponentEffect(cardEffect, card));
                }

                bool CanActivateCondition(Hashtable hashtable)
                {
                    return CardEffectCommons.IsExistOnBattleAreaDigimon(card) &&
                           CardEffectCommons.CanActivateSuspendCostEffect(card) &&
                           card.PermanentOfThisCard().TopCard.ContainsCardName("Veedramon");
                }

                IEnumerator ActivateCoroutine(Hashtable hashtable)
                {
                    Permanent thisCardPermanent = card.PermanentOfThisCard();

                    IEnumerator StopFieldRemoval()
                    {
                        thisCardPermanent.willBeRemoveField = false;
                        thisCardPermanent.HideDeleteEffect();
                        thisCardPermanent.HideHandBounceEffect();
                        thisCardPermanent.HideDeckBounceEffect();
                        thisCardPermanent.HideWillRemoveFieldEffect();

                        yield return null;
                    }

                    yield return ContinuousController.instance.StartCoroutine(new SuspendPermanentsClass(new List<Permanent> { thisCardPermanent }, hashtable).Tap());
                    yield return ContinuousController.instance.StartCoroutine(StopFieldRemoval());
                }
            }

            #endregion

            return cardEffects;
        }
    }
}