using System;
using System.Collections.Generic;
using System.Linq;
using Cysharp.Threading.Tasks;
using Continentis.MainGame.Card;
using Continentis.MainGame.Character;
using DG.Tweening;
using SLSFramework.General;
using UnityEngine;
using Random = UnityEngine.Random;

namespace Continentis.MainGame.Commands
{
    public class Cmd_UsePowerCards : CommandBase
    {
        private readonly bool isPlayer;
        private readonly DeckSubmodule deck;
        private readonly List<CardInstance> cardsToUse;
        private readonly float interval;

        private const float SingleCardAnimationDuration = 0.5f;

        public Cmd_UsePowerCards(bool isPlayer, DeckSubmodule deck, List<CardInstance> cards, float interval)
        {
            this.isPlayer = isPlayer;
            this.deck = deck;
            this.cardsToUse = cards;
            this.interval = interval;
        }

        protected override async UniTask ExecuteAsync(CommandContext outerContext)
        {
            if (cardsToUse == null || cardsToUse.Count == 0) return;

            if (interval <= 0f)
            {
                await UniTask.WhenAll(cardsToUse.Select(card => UsePowerCardAsync(card)));
            }
            else
            {
                var tasks = new UniTask[cardsToUse.Count];
                for (int i = 0; i < cardsToUse.Count; i++)
                {
                    CardInstance captured = cardsToUse[i];
                    tasks[i] = UsePowerCardWithDelayAsync(captured, i * interval);
                }
                await UniTask.WhenAll(tasks);
            }
        }

        private async UniTask UsePowerCardWithDelayAsync(CardInstance card, float delay)
        {
            if (delay > 0f)
                await UniTask.Delay(TimeSpan.FromSeconds(delay));
            await UsePowerCardAsync(card);
        }

        private async UniTask UsePowerCardAsync(CardInstance card)
        {
            if (isPlayer)
                await PlayerUsePowerAsync(card);
            else
                await NpcUsePowerAsync(card);
        }

        private async UniTask PlayerUsePowerAsync(CardInstance card)
        {
            deck.TransferCard(deck.Pile(card.cardLocation.pileName), deck.GravePile, card);
            card.handCardView.TransferCardView(CombatUIManager.Instance.combatMainPage.gravePile);

            RectTransform cardTransform = card.handCardView.cardTransform;
            Vector2 userViewPosition = card.user.characterView.hudContainer.GetComponent<RectTransform>().position;

            cardTransform.DOMove(userViewPosition, SingleCardAnimationDuration).SetEase(Ease.Linear).Play();
            cardTransform.DOScale(Vector3.zero, SingleCardAnimationDuration).SetEase(Ease.Linear)
                .OnComplete(() => cardTransform.anchoredPosition = Vector2.zero).Play();

            await UniTask.Delay(TimeSpan.FromSeconds(SingleCardAnimationDuration));
        }

        private async UniTask NpcUsePowerAsync(CardInstance card)
        {
            deck.TransferCard(deck.Pile(card.cardLocation.pileName), deck.GravePile, card);
            await UniTask.Delay(TimeSpan.FromSeconds(SingleCardAnimationDuration));
        }
    }
}