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

namespace DCGO.CardEffects.BT19
{
    public class BT19_071 : CEntity_Effect
    {
        public override List<ICardEffect> CardEffects(EffectTiming timing, CardSource card)
        {
            List<ICardEffect> cardEffects = new List<ICardEffect>();

            #region On Play
            if (timing == EffectTiming.OnEnterFieldAnyone)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Trash 2 cards from deck top and gain Blocker", CanUseCondition, card);
                activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, -1, false, EffectDiscription());
                cardEffects.Add(activateClass);

                string EffectDiscription()
                {
                    return "[On Play] Trash the top 2 cards of your deck. Then, this Digimon gains <Blocker> until the end of your opponent's turn.";
                }

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

                bool CanActivateCondition(Hashtable hashtable)
                {
                    return CardEffectCommons.IsExistOnBattleAreaDigimon(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.GainBlocker(
                        targetPermanent: card.PermanentOfThisCard(), effectDuration: EffectDuration.UntilOpponentTurnEnd,
                        activateClass: activateClass));
                }
            }
            #endregion

            #region When Digivolving
            if (timing == EffectTiming.OnEnterFieldAnyone)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Trash 2 cards from deck top and gain Blocker", CanUseCondition, card);
                activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, -1, false, EffectDiscription());
                cardEffects.Add(activateClass);

                string EffectDiscription()
                {
                    return "[When Digivolving] Trash the top 2 cards of your deck. Then, this Digimon gains <Blocker> until the end of your opponent's turn.";
                }

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

                    return false;
                }

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

                    return false;
                }

                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.GainBlocker(
                        targetPermanent: card.PermanentOfThisCard(), effectDuration: EffectDuration.UntilOpponentTurnEnd,
                        activateClass: activateClass));
                }
            }
            #endregion

            #region All Turns
            if (timing == EffectTiming.OnDiscardLibrary)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Delete 1 of your opponent's level 5 or lower Digimon", CanUseCondition, card);
                activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, 1, false, EffectDiscription());
                activateClass.SetHashString("DeleteDigimon_BT19_071");
                cardEffects.Add(activateClass);

                string EffectDiscription()
                {
                    return "[All Turns][Once Per Turn] When effects trashes cards from your deck, delete 1 of your opponent's level 5 or lower Digimon.";
                }

                bool CanUseCondition(Hashtable hashtable)
                {
                    if (CardEffectCommons.IsExistOnBattleAreaDigimon(card))
                    {
                        if (CardEffectCommons.CanTriggerWhenDiscardLibrary(hashtable, cardSource => cardSource.Owner == card.Owner))
                        {
                            return true;
                        }                    
                    }

                    return false;
                }

                bool CanSelectPermanentCondition(Permanent permanent)
                {
                    if (CardEffectCommons.IsPermanentExistsOnOpponentBattleAreaDigimon(permanent, card))
                    {
                        if (permanent.TopCard.HasLevel && permanent.Level <= 5)
                        {
                            return true;
                        }
                    }

                    return false;
                }

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

                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;
        }
    }
}