using System.Collections.Generic;
using Gameplay.Level;
using Gameplay.Unit;
namespace Gameplay.Common
{
    public class DelayMoraleDamage
    {
        public GameUnit owner;

        public List<int> delayDamages;
        public List<float> delayTimes;
        
        public DelayMoraleDamage(GameUnit owner)
        {
            this.owner = owner;
            delayDamages = new List<int>();
            delayTimes = new List<float>();
        }

        public void AddSecondsDamage(int totalDamage, int totalSeconds)
        {
            var currentTime = LevelManager.Instance.CurrentLevel.LevelTime;
            if (totalDamage <= totalSeconds)
            {
                totalSeconds = totalDamage;
                // 每秒扣1点
                for (int i = 0; i < totalSeconds; i++)
                {
                    _PostDelayDamage(1, currentTime + i + 1);
                }
            }
            else
            {
                var div = totalDamage / totalSeconds;
                var remainValue = totalDamage;
                // 前面每秒扣div点
                for (int i = 0; i < totalSeconds - 1; i++)
                {
                    _PostDelayDamage(div, currentTime + i + 1);
                    remainValue -= div;
                }
                // 最后一秒扣剩余的
                _PostDelayDamage(remainValue, currentTime + totalSeconds);
            }
        }
        
        private void _PostDelayDamage(int damage, float delayTime)
        {
            delayDamages.Add(damage);
            delayTimes.Add(delayTime);
        }

        public void LogicUpdate(float dt)
        {
            var levelTime = LevelManager.Instance.CurrentLevel.LevelTime;
            for (int i = 0; i < delayTimes.Count; i++)
            {
                var time = delayTimes[i];
                if (levelTime > time)
                {
                    owner.DamageMoraleImd(owner, delayDamages[i]);
                    delayDamages.RemoveAt(i);
                    delayTimes.RemoveAt(i);
                    i--;
                }
            }
        }
    }
}