using System.Collections.Generic;
using Cysharp.Threading.Tasks;
using Gameplay.Unit;
using Gameplay.Unit.Data;

namespace Gameplay.Skill
{

    public class UnitSkillManager
    {

        public readonly GameUnit owner;
        public readonly List<SkillHandle> handles;
        private readonly Dictionary<int, SkillHandle> _handleDict;
        public SkillHandle positiveSkill;

        public UnitSkillManager(GameUnit owner)
        {
            this.owner = owner;
            handles = new List<SkillHandle>();
            _handleDict = new Dictionary<int, SkillHandle>();
        }

        public void ReduceSkillCd(float reduceTime)
        {
            if (positiveSkill == null) return;
            positiveSkill.ReduceSkillCd(reduceTime);
        }

        public void ReduceSkillCdPercent(float percent)
        {
            if (positiveSkill == null) return;
            var reduceTime = positiveSkill.runtimeData.maxCdTime * percent;
            positiveSkill.ReduceSkillCd(reduceTime);
        }

        public async UniTask<bool> AddSkill(int skillId)
        {
            var configData = SkillManager.GetSkillConfigById(skillId);
            if (configData == null)
            {
                owner.LogError("无效的技能id:" + skillId);
                return false;
            }
            var logicData = await SkillManager.instance.GetSkillLogicById(configData.LogicId);
            if (logicData == null)
            {
                return false;
            }
            var skillHandle = new SkillHandle(owner, configData);
            skillHandle.runtimeData.logicData = logicData;
            if (DebugUtil.LogEnable)
            {
                DebugUtil.LogG($"为{owner.GetDescString()} 增加技能:{configData.NameRead} 技能id:{configData.ID}");
            }
            
            positiveSkill = skillHandle;

            handles.Add(skillHandle);
            _handleDict.Add(configData.ID, skillHandle);
            return true;
        }

        public void AddPassiveBuffIds(List<int> buffIds)
        {
            if (buffIds == null || buffIds.Count == 0) return;
            for (var i = 0; i < buffIds.Count; ++i)
            {
                var buffId = buffIds[i];
                owner.buffManager.AddBuffById(buffId);
            }
        }

        public void LogicUpdate(float dt)
        {
            for (var i = 0; i < handles.Count; ++i)
            {
                var handle = handles[i];
                handle.LogicUpdate(dt);
            }
        }

    }
}