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

namespace DCGO.CardEffects.BT21
{
    //Snatchmon
    public class BT21_058 : CEntity_Effect
    {
        public override List<ICardEffect> CardEffects(EffectTiming timing, CardSource card)
        {
            List<ICardEffect> cardEffects = new List<ICardEffect>();

            #region OP/WD Shared

            string SharedEffectName = "Reveal 3, add 1 [Vemmon] in text, trash rest, place up to 2 [Vemmon] from trash under 1 Digimon.";

            string SharedEffectDescription(string tag) => $"[{tag}] Reveal the top 3 cards of your deck. Add 1 card with [Vemmon] in its text among them to the hand. Trash the rest. Then, you may place up to 2 [Vemmon] from your trash as 1 of your Digimon's bottom digivolution cards.";

            bool HasVemmonInText(CardSource cardSource)
            {
                return cardSource.HasText("Vemmon");
            }

            bool IsVemmon(CardSource cardSource)
            {
                return cardSource.EqualsCardName("Vemmon");
            }

            bool HasDigimonOnOwnerBattleArea(Permanent permanent)
            {
                return CardEffectCommons.IsPermanentExistsOnOwnerBattleAreaDigimon(permanent, card);
            }

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

            IEnumerator SharedActivateCoroutine(Hashtable hashtable, ActivateClass activateClass)
            {
                yield return ContinuousController.instance.StartCoroutine(CardEffectCommons.SimplifiedRevealDeckTopCardsAndSelect(
                    revealCount: 3,
                    simplifiedSelectCardConditions:
                    new SimplifiedSelectCardConditionClass[]
                    {
                        new SimplifiedSelectCardConditionClass(
                            canTargetCondition:HasVemmonInText,
                            message: "Select 1 card with [Vemmon] in text.",
                            mode: SelectCardEffect.Mode.AddHand,
                            maxCount: 1,
                            selectCardCoroutine: null),
                    },
                    remainingCardsPlace: RemainingCardsPlace.Trash,
                    activateClass: activateClass,
                    canNoSelect: false
                ));

                if (CardEffectCommons.HasMatchConditionOwnersCardInTrash(card, IsVemmon))
                {
                    List<CardSource> selectedCardsFromTrash = new List<CardSource>();

                    SelectCardEffect selectCardEffect = GManager.instance.GetComponent<SelectCardEffect>();
                    int maxCountFromTrash = Math.Min(2, CardEffectCommons.MatchConditionOwnersCardCountInTrash(card, IsVemmon));

                    selectCardEffect.SetUp(
                        canTargetCondition: IsVemmon,
                        canTargetCondition_ByPreSelecetedList: null,
                        canEndSelectCondition: null,
                        canNoSelect: () => true,
                        selectCardCoroutine: SelectCardCoroutine,
                        afterSelectCardCoroutine: null,
                        message: "Select up to 2 cards to place on bottom of digivolution cards.",
                        maxCount: maxCountFromTrash,
                        canEndNotMax: true,
                        isShowOpponent: true,
                        mode: SelectCardEffect.Mode.Custom,
                        root: SelectCardEffect.Root.Trash,
                        customRootCardList: null,
                        canLookReverseCard: true,
                        selectPlayer: card.Owner,
                        cardEffect: activateClass);

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

                    selectCardEffect.SetUpCustomMessage("Select up to 2 cards to place on bottom of digivolution cards.", "The opponent is selecting up to 2 cards to place on bottom of digivolution cards.");
                    selectCardEffect.SetUpCustomMessage_ShowCard("Digivolution Card");
                    yield return ContinuousController.instance.StartCoroutine(selectCardEffect.Activate());

                    Permanent selectedPermanent = null;

                    if (selectedCardsFromTrash.Count != 0)
                    {
                        if (card.Owner.GetBattleAreaDigimons().Count(HasDigimonOnOwnerBattleArea) > 1)
                        {
                            SelectPermanentEffect selectPermanentEffect = GManager.instance.GetComponent<SelectPermanentEffect>();

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

                            IEnumerator SelectPermanentCoroutine(Permanent permanent)
                            {
                                selectedPermanent = permanent;
                                yield return null;
                            }

                            selectPermanentEffect.SetUpCustomMessage("Select 1 Digimon that will get the digivolution card(s).", "The opponent is selecting 1 Digimon that will get the digivolution card(s).");
                            yield return ContinuousController.instance.StartCoroutine(selectPermanentEffect.Activate());
                        }

                        else selectedPermanent = card.Owner.GetBattleAreaDigimons().FirstOrDefault();
                        if (selectedPermanent != null) yield return ContinuousController.instance.StartCoroutine(
                            selectedPermanent.AddDigivolutionCardsBottom(selectedCardsFromTrash, activateClass));
                    }
                }
            }

            #endregion

            #region On Play

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

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

            #endregion

            #region When Digivolving

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

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

            #endregion

            #region All Turns Inherited
            if (timing == EffectTiming.OnDigivolutionCardReturnToDeckBottom)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Delete 1 opponent Digimon with play cost 4 or less", CanUseCondition, card);
                activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, 1, false, EffectDescription());
                activateClass.SetIsInheritedEffect(true);
                activateClass.SetHashString("Delete_BT21_058");
                cardEffects.Add(activateClass);

                string EffectDescription()
                {
                    return "[All Turns] [Once Per Turn] When any [Vemmon] are returned to the bottom of the deck from this Digimon's digivolution cards, delete 1 of your opponent's Digimon with a play cost of 4 or less.";
                }

                bool CanSelectPermanentCondition(Permanent permanent)
                {
                    if (CardEffectCommons.IsPermanentExistsOnOpponentBattleAreaDigimon(permanent, card))
                        return permanent.TopCard.HasPlayCost && permanent.TopCard.GetCostItself <= 4;

                    return false;
                }

                bool CanUseCondition(Hashtable hashtable)
                {
                    return CardEffectCommons.CanTriggerOnReturnToLibraryBottomDigivolutionCard(hashtable, cardSource => cardSource.EqualsCardName("Vemmon"), card);
                }

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

                IEnumerator ActivateCoroutine(Hashtable _hashtable)
                {
                    int maxCount = Math.Min(1, CardEffectCommons.MatchConditionPermanentCount(CanSelectPermanentCondition));

                    SelectPermanentEffect selectPermanentEffect = GManager.instance.GetComponent<SelectPermanentEffect>();

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

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

            return cardEffects;
        }
    }
}