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

// Whamon
namespace DCGO.CardEffects.BT23
{
    public class BT23_023 : 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.HasCSTraits
                        && targetPermanent.TopCard.HasLevel
                        && targetPermanent.TopCard.IsLevel4;
                }

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

            #endregion

            #region AT Shared

            IEnumerator SharedActivateCoroutine(Hashtable hashtable, ActivateClass activateClass, bool IsTopCard)
            {
                bool CanSelectCardCondition(CardSource cardSource)
                {
                    return cardSource.IsDigimon
                        && cardSource.HasLevel && cardSource.Level <= 4
                        && (cardSource.HasCSTraits || cardSource.HasCardColor(CardColor.Blue))
                        && CardEffectCommons.CanPlayAsNewPermanent(cardSource, false, activateClass);
                }

                Permanent thisPermament = null;
                if (IsTopCard) thisPermament = card.PermanentOfThisCard();
                else thisPermament = card.PermanentOfThisCard().TopCard.PermanentOfThisCard();

                if (thisPermament.StackCards.Exists(CanSelectCardCondition))
                {
                    CardSource selectedCard = null;

                    SelectCardEffect selectCardEffect = GManager.instance.GetComponent<SelectCardEffect>();
                    int maxCount = Math.Min(1, thisPermament.StackCards.Count(CanSelectCardCondition));

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

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

                    selectCardEffect.SetUpCustomMessage("Select 1 digivolution card to play.", "The opponent is selecting 1 digivolution card to play.");
                    selectCardEffect.SetUpCustomMessage_ShowCard("Selected Card");
                    yield return ContinuousController.instance.StartCoroutine(selectCardEffect.Activate());

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

            #region All Turns - OPT

            if (timing == EffectTiming.WhenRemoveField)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Play 1 level 4 or lower Blue or [CS] digimon from sources", CanUseCondition, card);
                activateClass.SetUpActivateClass(CanActivateCondition, hash => SharedActivateCoroutine(hash, activateClass, true), 1, true, EffectDiscription());
                activateClass.SetHashString("BT23-023_AT");
                cardEffects.Add(activateClass);

                string EffectDiscription()
                {
                    return "[All Turns] [Once Per Turn] When this Digimon would leave the battle area other than by your effects, you may play 1 level 4 or lower blue or [CS] trait Digimon card from its digivolution cards without paying the cost.";
                }

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

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

            #endregion

            #region ESS - All Turns - OPT

            if (timing == EffectTiming.WhenRemoveField)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Play 1 level 4 or lower Blue or [CS] digimon from sources", CanUseCondition, card);
                activateClass.SetUpActivateClass(CanActivateCondition, hash => SharedActivateCoroutine(hash, activateClass, false), 1, true, EffectDiscription());
                activateClass.SetIsInheritedEffect(true);
                activateClass.SetHashString("BT23-023_ESS_AT");
                cardEffects.Add(activateClass);

                string EffectDiscription()
                {
                    return "[All Turns] [Once Per Turn] When this Digimon would leave the battle area other than by your effects, you may play 1 level 4 or lower blue or [CS] trait Digimon card from its digivolution cards without paying the cost.";
                }

                bool CanUseCondition(Hashtable hashtable)
                {
                    return CardEffectCommons.IsExistOnField(card)
                        && CardEffectCommons.CanTriggerWhenPermanentRemoveField(hashtable, ThisPermamentCondition);
                }

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

                bool ThisPermamentCondition(Permanent permanent)
                {
                    return CardEffectCommons.IsPermanentExistsOnOwnerBattleAreaDigimon(permanent, card)
                        && permanent.StackCards.Contains(card);
                }
            }

            #endregion

            return cardEffects;
        }
    }
}