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

// Aegiomon
namespace DCGO.CardEffects.BT24
{
    public class BT24_034 : 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.EqualsCardName("Elecmon") ||
                        (targetPermanent.TopCard.IsLevel3 && targetPermanent.TopCard.HasTSTraits);
                }

                cardEffects.Add(CardEffectFactory.AddSelfDigivolutionRequirementStaticEffect(PermanentCondition, 2, false, card, null));
            }
            #endregion

            #region Barrier
            if (timing == EffectTiming.WhenPermanentWouldBeDeleted)
            {
                cardEffects.Add(CardEffectFactory.BarrierSelfEffect(isInheritedEffect: false, card: card, condition: null));
            }
            #endregion

            #region Shared WM / OP / WD

            string SharedEffectName() => "By adding top security to hand, Play [TS] tamer";

            string SharedEffectDescription(string tag) => $"[{tag}] By adding your top security card to the hand, you may play 1 [TS] trait Tamer card from your hand without paying the cost. This effect can't play cards with the same name as any of your Tamers.";

            bool SharedCanActivateCondition(Hashtable hashtable)
            {
                return CardEffectCommons.IsExistOnBattleAreaDigimon(card) &&
                    card.Owner.SecurityCards.Count() > 0;
            }

            bool ValidTamer(CardSource cardSource, ActivateClass activateClass)
            {
                var tamersOnField = card.Owner.GetFieldPermanents().Filter(x => x.IsTamer).Select(x => x.TopCard);
                
                var fieldNames = tamersOnField
                        .SelectMany(x => x.CardNames)
                        .Select(n => n.ToLowerInvariant())
                        .ToHashSet();

                var sourceNames = cardSource.CardNames
                    .Select(n => n.ToLowerInvariant());

                return cardSource.IsTamer &&
                    cardSource.HasTSTraits &&
                    !sourceNames.Any(n => fieldNames.Contains(n)) &&
                    CardEffectCommons.CanPlayAsNewPermanent(cardSource, false, activateClass);
            }

            IEnumerator SharedActivateCoroutine(Hashtable hashtable, ActivateClass activateClass)
            {
                CardSource topCard = card.Owner.SecurityCards[0];

                yield return ContinuousController.instance.StartCoroutine(CardObjectController.AddHandCards(new List<CardSource>() { topCard }, false, activateClass));
                yield return ContinuousController.instance.StartCoroutine(new IReduceSecurity(player: card.Owner, refSkillInfos: ref ContinuousController.instance.nullSkillInfos, activateClass).ReduceSecurity());

                if (card.Owner.HandCards.Contains(topCard) && card.Owner.HandCards.Count((cardSource) => ValidTamer(cardSource, activateClass)) >= 1)
                {
                    List<CardSource> selectedCards = new List<CardSource>();

                    int maxCount = 1;

                    SelectHandEffect selectHandEffect = GManager.instance.GetComponent<SelectHandEffect>();

                    selectHandEffect.SetUp(
                        selectPlayer: card.Owner,
                        canTargetCondition: (cardSource) => ValidTamer(cardSource, activateClass),
                        canTargetCondition_ByPreSelecetedList: null,
                        canEndSelectCondition: null,
                        maxCount: maxCount,
                        canNoSelect: true,
                        canEndNotMax: false,
                        isShowOpponent: true,
                        selectCardCoroutine: SelectCardCoroutine,
                        afterSelectCardCoroutine: null,
                        mode: SelectHandEffect.Mode.Custom,
                        cardEffect: activateClass);

                    selectHandEffect.SetUpCustomMessage("Select 1 card to play.", "The opponent is selecting 1 card to play.");
                    selectHandEffect.SetUpCustomMessage_ShowCard("Played Card");

                    yield return StartCoroutine(selectHandEffect.Activate());

                    IEnumerator SelectCardCoroutine(CardSource cardSource)
                    {
                        selectedCards.Add(cardSource);

                        yield return null;
                    }

                    yield return ContinuousController.instance.StartCoroutine(CardEffectCommons.PlayPermanentCards(
                        cardSources: selectedCards,
                        activateClass: activateClass,
                        payCost: false,
                        isTapped: false,
                        root: SelectCardEffect.Root.Hand,
                        activateETB: true));
                }
            }

            #endregion

            #region When Moving

            if (timing == EffectTiming.OnMove)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect(SharedEffectName(), CanUseCondition, card);
                activateClass.SetUpActivateClass(SharedCanActivateCondition, (hashTable) => SharedActivateCoroutine(hashTable, activateClass), -1, true, SharedEffectDescription("When Moving"));
                cardEffects.Add(activateClass);

                bool PermanentCondition(Permanent permanent)
                {
                    return permanent == card.PermanentOfThisCard();
                }

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

            #endregion

            #region On Play

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

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

            #endregion

            #region When Digivolving

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

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

            #endregion 

            #region ESS Barrier
            if (timing == EffectTiming.WhenPermanentWouldBeDeleted)
            {
                cardEffects.Add(CardEffectFactory.BarrierSelfEffect(isInheritedEffect: true, card: card, condition: null));
            }
            #endregion

            return cardEffects;
        }
    }
}