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

// Yaamon
namespace DCGO.CardEffects.EX11
{
    public class EX11_005 : CEntity_Effect
    {
        public override List<ICardEffect> CardEffects(EffectTiming timing, CardSource card)
        {
            List<ICardEffect> cardEffects = new List<ICardEffect>();

            #region Start of Your Main Phase

            if (timing == EffectTiming.OnStartMainPhase)
            {
                ActivateClass activateClass = new ActivateClass();
                activateClass.SetUpICardEffect("Digivolve into [Dark Dragon]/[Evil Dragon] trait for 1 less, if so trash 2 from hand.", CanUseCondition, card);
                activateClass.SetUpActivateClass(CanActivateCondition, ActivateCoroutine, -1, false, EffectDescription());
                activateClass.SetIsInheritedEffect(true);
                cardEffects.Add(activateClass);

                string EffectDescription()
                {
                    return "[Start of Your Main Phase] This Digimon may digivolve into a [Dark Dragon] or [Evil Dragon] trait Digimon card in the trash with the digivolution cost reduced by 1. If this effect digivolved, trash 2 cards in your hand.";
                }

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

                bool CanActivateCondition(Hashtable hashtable)
                {
                    return CardEffectCommons.IsExistOnBattleArea(card)
                        && CardEffectCommons.HasMatchConditionOwnersCardInTrash(card, CanSelectCardCondition);
                }

                bool CanSelectCardCondition(CardSource cardSource)
                {
                    return cardSource.IsDigimon
                        && (cardSource.EqualsTraits("Dark Dragon")
                            || cardSource.EqualsTraits("Evil Dragon"))
                        && cardSource.CanPlayCardTargetFrame(card.PermanentOfThisCard().PermanentFrame, false, activateClass, SelectCardEffect.Root.Trash);
                }

                IEnumerator ActivateCoroutine(Hashtable hashtable)
                {
                    yield return ContinuousController.instance.StartCoroutine(CardEffectCommons.DigivolveIntoHandOrTrashCard(
                            targetPermanent: card.PermanentOfThisCard(),
                            cardCondition: CanSelectCardCondition,
                            payCost: true,
                            reduceCostTuple: (reduceCost: 1, reduceCostCardCondition: null),
                            fixedCostTuple: null,
                            ignoreDigivolutionRequirementFixedCost: -1,
                            isHand: false,
                            activateClass: activateClass,
                            successProcess: SuccessProcess()));

                    IEnumerator SuccessProcess()
                    {
                        int discardCount = Math.Min(2, card.Owner.HandCards.Count);

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

                        selectHandEffect.SetUp(
                            selectPlayer: card.Owner,
                            canTargetCondition: (cardSource) => true,
                            canTargetCondition_ByPreSelecetedList: null,
                            canEndSelectCondition: null,
                            maxCount: discardCount,
                            canNoSelect: false,
                            canEndNotMax: false,
                            isShowOpponent: true,
                            selectCardCoroutine: null,
                            afterSelectCardCoroutine: null,
                            mode: SelectHandEffect.Mode.Discard,
                            cardEffect: activateClass);

                        yield return StartCoroutine(selectHandEffect.Activate());
                    }
                }
            }

            #endregion

            return cardEffects;
        }
    }
}