using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using XmdsCommon.Plugin;
using XmdsCommonServer.Plugin;
using XmdsCommonServer.Plugin.XmdsSkillTemplate.DamageCalculator;
using XmdsCommonServer.Plugin.XmdsSkillTemplate.Skills;

namespace XmdsCommonSkill.Plugin.Buffs
{
    /// <summary>
    /// FileName: XmdsBuff_ChangeSkillTotalTime.cs
    /// Author: Alex.Yu
    /// Corporation:... 
    /// Description: 技能CD时间改变.
    /// DateTime: 2015/7/17 17:54:17
    /// </summary>

    public class XmdsBuff_ChangeSkillTotalTime : XmdsBuffBase
    {
        /// <summary>
        /// 指定影响技能,等于0时影响单位所拥有的技能.
        /// </summary>
        public int TargetSkill = 0;
        /// <summary>
        /// 变更时间：>0增加CD时间.小于减少CD时间.
        /// </summary>
        public int ChangeTime = 0;

        /// <summary>
        /// 是否为百分比.
        /// </summary>
        public bool IsPercent = false;


        public override int GetAbilityID()
        {
            return (int)XmdsCommon.Plugin.XmdsBuffProperties.XmdsBuffAbility.ChangeSkillTotalTime;
        }

		public override void CopyTo(UnitBuff other)
		{
			var ret = other as XmdsBuff_ChangeSkillTotalTime;

			ret.TargetSkill = this.TargetSkill;
			ret.ChangeTime = this.ChangeTime;
			ret.IsPercent = this.IsPercent;

			base.CopyTo(other);
		}

		protected override void OnBuffBegin(XmdsCommonServer.Plugin.XmdsVirtual hitter, XmdsCommonServer.Plugin.XmdsVirtual attacker, CommonAI.Zone.Instance.InstanceUnit.BuffState state)
        {
            if (TargetSkill != 0)
            {
                //指定技能.
                CommonAI.Zone.Instance.InstanceUnit.SkillState ss = hitter.mUnit.getSkillState(TargetSkill);

                if (ss != null)
                {
                    XmdsCommonServer.Plugin.XmdsVirtual.FormatLog("BuffBegin 【{0}】技能【{1}】CD改变{2}", hitter.mProp.ServerData.BaseInfo.name, ss.Data.Name, ChangeTime);
                    BeginEffect(hitter, ss, state.OverlayLevel + 1);
                }
            }
            else
            {
                //所有技能修改.
                //CommonAI.Zone.Instance.InstanceUnit.SkillState[] states = hitter.mUnit.SkillStatus;
                List<CommonAI.Zone.Instance.InstanceUnit.SkillState> states = (List<CommonAI.Zone.Instance.InstanceUnit.SkillState>)hitter.mUnit.SkillStatus;


                for (int i = 0 ; i < states.Count ; i++)
                {
                    XmdsCommonServer.Plugin.XmdsVirtual.FormatLog("BuffBegin 【{0}】技能【{1}】CD改变{2}", hitter.mProp.ServerData.BaseInfo.name, states[i].Data.Name, ChangeTime);
                    BeginEffect(hitter, states[i], state.OverlayLevel + 1);
                }

            }
        }

        protected override void OnBuffEnd(XmdsCommonServer.Plugin.XmdsVirtual hitter, CommonAI.Zone.Instance.InstanceUnit.BuffState state, bool replace)
        {
            if (TargetSkill != 0)
            {
                //指定技能.
                CommonAI.Zone.Instance.InstanceUnit.SkillState ss = hitter.mUnit.getSkillState(TargetSkill);

                if (ss != null)
                {
                    XmdsCommonServer.Plugin.XmdsVirtual.FormatLog("BuffEnd 【{0}】技能【{1}】CD改变{2}", hitter.mProp.ServerData.BaseInfo.name, ss.Data.Name, ChangeTime);
                    EndEffect(hitter, ss, state.OverlayLevel + 1);
                }
            }
            else
            {
                //所有技能修改.
                //CommonAI.Zone.Instance.InstanceUnit.SkillState[] states = hitter.mUnit.SkillStatus;
                List<CommonAI.Zone.Instance.InstanceUnit.SkillState> states = (List<CommonAI.Zone.Instance.InstanceUnit.SkillState>)hitter.mUnit.SkillStatus;

                for (int i = 0 ; i < states.Count ; i++)
                {
                    XmdsCommonServer.Plugin.XmdsVirtual.FormatLog("BuffEnd 【{0}】技能【{1}】CD改变{2}", hitter.mProp.ServerData.BaseInfo.name, states[i].Data.Name, ChangeTime);
                    EndEffect(hitter, states[i], state.OverlayLevel + 1);
                }

            }
        }

        private void BeginEffect(XmdsVirtual unit, CommonAI.Zone.Instance.InstanceUnit.SkillState ss, int overlay)
        {
            int v = 0;

            if (IsPercent)
            {
                v = (int)(-1 * ChangeTime * XmdsUnitProp.PER * ss.Data.CoolDownMS);
            }
            else
            {
                v = -1 * ChangeTime;
            }


            int old_v = ss.GetDecreaseTotalTimeMS();

            int new_v = old_v + v;
            //只对未施放的技能有效.
            ss.SetDecreaseTotalTimeMS(new_v);
            unit.mUnit.DecreaseSkillCD(ss.Data.ID, v);
        }

        private void EndEffect(XmdsVirtual unit, CommonAI.Zone.Instance.InstanceUnit.SkillState ss, int overlay)
        {

            int v = 0;

            if (IsPercent)
            {
                v = (int)(-1 * ChangeTime * XmdsUnitProp.PER * ss.Data.CoolDownMS);
            }
            else
            {
                v = -1 * ChangeTime;
            }

            int old_v = ss.GetDecreaseTotalTimeMS();

            int new_v = old_v - v;
            //只对未施放的技能有效.
            ss.SetDecreaseTotalTimeMS(new_v);
        }
    }
}