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

namespace DCGO.CardEffects.BT19
{
    public class BT19_097 : CEntity_Effect
    {
        public override List<ICardEffect> CardEffects(EffectTiming timing, CardSource card)
        {
            List<ICardEffect> cardEffects = new List<ICardEffect>();

            #region Trashed Condition
            if (timing == EffectTiming.OnDiscardLibrary)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Place this card in the battle Area", CanUseCondition, card);
                activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, -1, true, EffectDiscription());
                cardEffects.Add(activateClass);

                string EffectDiscription()
                {
                    return "When this card is trashed from your deck, you may place it in the battle area.";
                }

                bool CanUseCondition(Hashtable hashtable)
                {
                    return CardEffectCommons.CanTriggerWhenSelfDiscardLibrary(hashtable, card);
                }

                bool CanActivateCondition(Hashtable hashtable)
                {
                    if (CardEffectCommons.IsExistOnTrash(card))
                    {
                        if (CardEffectCommons.CanPlayAsNewPermanent(cardSource: card, payCost: false, cardEffect: activateClass, root: SelectCardEffect.Root.Trash, isPlayOption: true))
                        {
                            return true;
                        }
                    }

                    return false;
                }

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

            #region Main Effect
            if (timing == EffectTiming.OptionSkill)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Trash 2 cards of your deck and place this card in the battle area.", CanUseCondition, card);
                activateClass.SetUpActivateClass(null, ActivateCoroutine, -1, false, EffectDescription());
                cardEffects.Add(activateClass);

                string EffectDescription()
                {
                    return "[Main] Trash the top 2 cards of your deck. Then, place this card in the battle area.";
                }

                bool CanUseCondition(Hashtable hashtable)
                {
                    return CardEffectCommons.CanTriggerOptionMainEffect(hashtable, card);
                }

                IEnumerator ActivateCoroutine(Hashtable hashtable)
                {
                    if (card.Owner.LibraryCards.Count >= 1)
                    {
                        yield return ContinuousController.instance.StartCoroutine(new IAddTrashCardsFromLibraryTop(2, card.Owner, activateClass).AddTrashCardsFromLibraryTop());
                    }

                    yield return ContinuousController.instance.StartCoroutine(CardEffectCommons.PlaceDelayOptionCards(card: card, cardEffect: activateClass));
                }
            }
            #endregion

            #region Main Delay
            if (timing == EffectTiming.OnStartTurn)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Play an [Impmon] from trash.", CanUseCondition, card);
                activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, -1, true, EffectDiscription());
                cardEffects.Add(activateClass);

                string EffectDiscription()
                {
                    return "[Start of your Turn] If you don't have a Digimon, <Delay>.\r\n• You may play 1 [Impmon] from your trash without paying the cost.";
                }

                bool CanSelectCardCondition(CardSource cardSource)
                {
                    if (cardSource != null)
                    {
                        if (cardSource.Owner == card.Owner)
                        {
                            if (CardEffectCommons.CanPlayAsNewPermanent(cardSource: cardSource, payCost: false, cardEffect: activateClass))
                            {
                                if (cardSource.IsDigimon && cardSource.EqualsCardName("Impmon"))
                                {
                                    return true;
                                }
                            }
                        }
                    }

                    return false;
                }

                bool CanUseCondition(Hashtable hashtable)
                {
                    return CardEffectCommons.IsOwnerTurn(card) &&
                           CardEffectCommons.IsExistOnBattleArea(card) &&
                           CardEffectCommons.CanDeclareOptionDelayEffect(card);
                }

                bool CanActivateCondition(Hashtable hashtable)
                {
                    return card.Owner.GetBattleAreaDigimons().Count == 0;
                }

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

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

                    IEnumerator SuccessProcess()
                    {
                        deleted = true;

                        yield return null;
                    }

                    if (deleted)
                    {                      
                        if (CardEffectCommons.HasMatchConditionOwnersCardInTrash(card, (cardSource) => CanSelectCardCondition(cardSource)))
                        {
                            int maxCount = Math.Min(1, card.Owner.TrashCards.Count((cardSource) => CanSelectCardCondition(cardSource)));

                            List<CardSource> selectedCards = new List<CardSource>();

                            SelectCardEffect selectCardEffect = GManager.instance.GetComponent<SelectCardEffect>();

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

                            selectCardEffect.SetUpCustomMessage("Select 1 [Impmon] to play.", "The opponent is selecting 1 card to play.");
                            selectCardEffect.SetUpCustomMessage_ShowCard("Played Card");

                            yield return StartCoroutine(selectCardEffect.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.Trash, activateETB: true));
                        }                      
                    }
                }
            }
            #endregion

            #region Security
            if (timing == EffectTiming.SecuritySkill)
            {
                cardEffects.Add(CardEffectFactory.PlaceSelfDelayOptionSecurityEffect(card));
            }
            #endregion

            return cardEffects;
        }
    }
}