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

public class BT9_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 3 * card.Owner.Enemy.GetBattleAreaPermanents().Count((permanent) => permanent.IsDigimon || permanent.IsTamer);
            }

            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);
            changeCostClass.SetNotShowUI(true);
            cardEffects.Add(changeCostClass);

            bool CanUseCondition(Hashtable hashtable)
            {
                return true;
            }

            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 true;
            }

            bool isUpDown()
            {
                return true;
            }
        }

        if (timing == EffectTiming.OnEnterFieldAnyone)
        {
            ActivateClass activateClass = new ActivateClass();
            activateClass.SetUpICardEffect("De-Digivolve 1 and delete opponent's all level 4 or lower Digimon", CanUseCondition, card);
            activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, -1, false, EffectDiscription());
            cardEffects.Add(activateClass);

            string EffectDiscription()
            {
                return "[On Play] <De-Digivolve 1> all of your opponent's Digimon. Then, delete all of your opponent's level 4 or lower Digimon.";
            }

            bool PermanentCondition(Permanent permanent)
            {
                if (CardEffectCommons.IsPermanentExistsOnOpponentBattleAreaDigimon(permanent, card))
                {
                    if (permanent.Level <= 4)
                    {
                        if (permanent.TopCard.HasLevel)
                        {
                            return true;
                        }
                    }
                }

                return false;
            }

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

            bool CanActivateCondition(Hashtable hashtable)
            {
                if (CardEffectCommons.IsExistOnBattleArea(card))
                {
                    if (card.Owner.Enemy.GetBattleAreaDigimons().Count() >= 1)
                    {
                        return true;
                    }
                }

                return false;
            }

            IEnumerator ActivateCoroutine(Hashtable _hashtable)
            {
                foreach (Permanent permanent in card.Owner.Enemy.GetBattleAreaDigimons().Clone())
                {
                    yield return ContinuousController.instance.StartCoroutine(new IDegeneration(permanent, 1, activateClass).Degeneration());
                }

                List<Permanent> destroyTargetPermanents = card.Owner.Enemy.GetBattleAreaDigimons().Filter(PermanentCondition);
                yield return ContinuousController.instance.StartCoroutine(new DestroyPermanentsClass(destroyTargetPermanents, CardEffectCommons.CardEffectHashtable(activateClass)).Destroy());
            }
        }

        if (timing == EffectTiming.OnEnterFieldAnyone)
        {
            ActivateClass activateClass = new ActivateClass();
            activateClass.SetUpICardEffect("De-Digivolve 1 and delete opponent's all level 4 or lower Digimon", CanUseCondition, card);
            activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, -1, false, EffectDiscription());
            cardEffects.Add(activateClass);

            string EffectDiscription()
            {
                return "[When Digivolving] <De-Digivolve 1> all of your opponent's Digimon. Then, delete all of your opponent's level 4 or lower Digimon.";
            }

            bool PermanentCondition(Permanent permanent)
            {
                if (CardEffectCommons.IsPermanentExistsOnOpponentBattleAreaDigimon(permanent, card))
                {
                    if (permanent.Level <= 4)
                    {
                        if (permanent.TopCard.HasLevel)
                        {
                            return true;
                        }
                    }
                }

                return false;
            }

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

            bool CanActivateCondition(Hashtable hashtable)
            {
                if (CardEffectCommons.IsExistOnBattleArea(card))
                {
                    if (card.Owner.Enemy.GetBattleAreaDigimons().Count() >= 1)
                    {
                        return true;
                    }
                }

                return false;
            }

            IEnumerator ActivateCoroutine(Hashtable _hashtable)
            {
                foreach (Permanent permanent in card.Owner.Enemy.GetBattleAreaDigimons().Clone())
                {
                    yield return ContinuousController.instance.StartCoroutine(new IDegeneration(permanent, 1, activateClass).Degeneration());
                }

                List<Permanent> destroyTargetPermanents = card.Owner.Enemy.GetBattleAreaDigimons().Filter(PermanentCondition);
                yield return ContinuousController.instance.StartCoroutine(new DestroyPermanentsClass(destroyTargetPermanents, CardEffectCommons.CardEffectHashtable(activateClass)).Destroy());
            }
        }

        if (timing == EffectTiming.OnEndTurn)
        {
            ActivateClass activateClass = new ActivateClass();
            activateClass.SetUpICardEffect("Delete opponent's all Digimon with the lowest play cost", CanUseCondition, card);
            activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, 1, false, EffectDiscription());
            activateClass.SetHashString("Delete_BT9_112");
            cardEffects.Add(activateClass);

            string EffectDiscription()
            {
                return "[End of Opponent's Turn][Once Per Turn] Delete all of your opponent's Digimon with the lowest play cost.";
            }

            bool PermanentCondition(Permanent permanent)
            {
                return CardEffectCommons.IsMinCost(permanent, card.Owner.Enemy, true);
            }

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

                return false;
            }

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

                return false;
            }

            IEnumerator ActivateCoroutine(Hashtable _hashtable)
            {
                List<Permanent> destroyTargetPermanents = card.Owner.Enemy.GetBattleAreaDigimons().Filter(PermanentCondition);
                yield return ContinuousController.instance.StartCoroutine(new DestroyPermanentsClass(destroyTargetPermanents, CardEffectCommons.CardEffectHashtable(activateClass)).Destroy());
            }
        }

        return cardEffects;
    }
}