using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Linq;
using Photon;
using System;
using Photon.Pun;

public class BT6_112 : CEntity_Effect
{
    public override List<ICardEffect> CardEffects(EffectTiming timing, CardSource card)
    {
        List<ICardEffect> cardEffects = new List<ICardEffect>();

        if (timing == EffectTiming.None)
        {
            int count()
            {
                return card.Owner.TrashCards.Count(cardSource =>
                (cardSource.IsDigimon && (cardSource.CardTraits.Contains("Three Musketeers") || cardSource.CardTraits.Contains("ThreeMusketeers")))
                || (cardSource.IsOption && cardSource.GetCostItself == 7 && cardSource.HasUseCost));
            }

            ChangeCostClass changeCostClass = new ChangeCostClass();
            changeCostClass.SetUpICardEffect($"Reduce Play Cost", CanUseCondition, card);
            changeCostClass.SetUpChangeCostClass(changeCostFunc: ChangeCost, cardSourceCondition: CardSourceCondition, rootCondition: RootCondition, isUpDown: isUpDown, isCheckAvailability: () => false, isChangePayingCost: () => true);

            cardEffects.Add(changeCostClass);

            bool CanUseCondition(Hashtable hashtable)
            {
                if (card.Owner.HandCards.Contains(card))
                {
                    changeCostClass.SetEffectName($"Play Cost -{count()}");

                    return true;
                }

                return false;
            }

            int ChangeCost(CardSource cardSource, int Cost, SelectCardEffect.Root root, List<Permanent> targetPermanents)
            {
                if (CardSourceCondition(cardSource))
                {
                    if (RootCondition(root))
                    {
                        if (PermanentsCondition(targetPermanents))
                        {
                            Cost -= count();
                        }
                    }
                }

                return Cost;
            }

            bool PermanentsCondition(List<Permanent> targetPermanents)
            {
                if (targetPermanents == null)
                {
                    return true;
                }

                else
                {
                    if (targetPermanents.Count((targetPermanent) => targetPermanent != null) == 0)
                    {
                        return true;
                    }
                }

                return false;
            }

            bool CardSourceCondition(CardSource cardSource)
            {
                return cardSource == card;
            }

            bool RootCondition(SelectCardEffect.Root root)
            {
                return root == SelectCardEffect.Root.Hand;
            }

            bool isUpDown()
            {
                return true;
            }
        }

        if (timing == EffectTiming.OnEnterFieldAnyone)
        {
            ActivateClass activateClass = new ActivateClass();
            activateClass.SetUpICardEffect("Return 1 Option from trash to hand and play 1 Option from hand", CanUseCondition, card);
            activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, -1, false, EffectDiscription());
            cardEffects.Add(activateClass);

            string EffectDiscription()
            {
                return "[On Play] Return 1 Option card with a memory cost of 7 from your trash to your hand. Then, use 1 Option card with a memory cost of 7 in your hand without paying its memory cost.";
            }

            bool CanSelectCardCondition(CardSource cardSource)
            {
                if (cardSource.IsOption)
                {
                    if (cardSource.GetCostItself == 7)
                    {
                        if (cardSource.HasUseCost)
                        {
                            return true;
                        }
                    }
                }
                return false;
            }

            bool CanSelectCardCondition1(CardSource cardSource)
            {
                if (cardSource.IsOption)
                {
                    if (cardSource.GetCostItself == 7)
                    {
                        if (cardSource.HasUseCost)
                        {
                            if (!cardSource.CanNotPlayThisOption)
                            {
                                return true;
                            }
                        }
                    }
                }

                return false;
            }

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

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

                return false;
            }

            IEnumerator ActivateCoroutine(Hashtable _hashtable)
            {
                if (CardEffectCommons.HasMatchConditionOwnersCardInTrash(card, CanSelectCardCondition))
                {
                    int maxCount = Math.Min(1, card.Owner.TrashCards.Count(CanSelectCardCondition));

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

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

                    yield return ContinuousController.instance.StartCoroutine(selectCardEffect.Activate());
                }

                if (card.Owner.HandCards.Count(CanSelectCardCondition1) >= 1)
                {
                    List<CardSource> selectedCards = new List<CardSource>();

                    int maxCount = 1;

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

                    selectHandEffect.SetUp(
                        selectPlayer: card.Owner,
                        canTargetCondition: CanSelectCardCondition1,
                        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 option card to use.",
                        "The opponent is selecting 1 option card to use.");
                    selectHandEffect.SetUpCustomMessage_ShowCard("Used Card");

                    yield return StartCoroutine(selectHandEffect.Activate());

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

                        yield return null;
                    }

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

        return cardEffects;
    }
}