using System.Collections.Generic;
using System.Linq;
using Continentis.MainGame.Card;
using Continentis.MainGame.Character;
using Continentis.MainGame.Combat;
using Continentis.MainGame.Commands;
using SLSUtilities.General;
using UnityEngine;

namespace Continentis.Mods.Basic.Cards
{
    /// <summary>
    /// 预判：获得闪避值。
    /// 若本回合内没有任何敌人在使用者之前行动，则额外获得 Bonus_Dodge 的闪避值。
    /// </summary>
    public class Anticipation : CardLogicBase
    {
        private const string BONUS_DODGE = "Bonus_Dodge";

        public override void SetUpLogicComponents()
        {
            AddLogicComponent<CardLogicComponent_Defense>();
        }

        public override CommandGroup PlayEffect(List<CharacterBase> targetList)
        {
            base.PlayEffect(targetList);

            int baseDodge = GetAttribute("Dodge");
            int finalDodge = IsBeforeAnyEnemy()
                ? Mathf.RoundToInt(baseDodge + GetAttribute(BONUS_DODGE))
                : baseDodge;

            return Cmd.Parallel(
                new Cmd_PlayAnimation(user.characterView, "Skill"),
                Cmd.Do(() => user.AddDodge(finalDodge))
            );
        }

        public override void ApplyAttributeChangesByCard()
        {
            LogicComponent<CardLogicComponent_Defense>().SetDodge();
        }

        /// <summary>
        /// 判断本回合内是否没有任何敌方角色在使用者之前行动过。
        /// </summary>
        private bool IsBeforeAnyEnemy()
        {
            int currentRound = CombatMainManager.Instance.currentRound;
            int userActionIndex = user.recordSubmodule.currentAction;

            return !CombatMainManager.Instance.characterController.characters
                .Any(c => c.fraction == Fraction.Enemy
                       && c.recordSubmodule.currentRound == currentRound
                       && c.recordSubmodule.currentAction < userActionIndex);
        }
    }
}