--
--- 定时释放本技能（且添加倒计时显示）
---
local Base = require("Battle/Logic/Entity/SkillDecorator/SkillDecorator")
local SkillDecoratorTimingUseSkill = class("SkillDecoratorTimingUseSkill", Base)

local EventSystem = require 'Event/EventSystem'
local FP_Greater = FP.Greater
local FP_LessEquals = FP.LessEquals

-- 注意：这个 skillID 必须是belongTo技能id
function SkillDecoratorTimingUseSkill:initialize(entity, skillID, maxTimer)
    Base.initialize(self, entity, skillID)
    self.type = LuaConst.SkillDecoratorType.TimingUseSkill
    self.UIType = LuaConst.UISkillBtnResetType.TimingUseSkill
        
    self.maxTimer = FP.newV1(0):Reset(maxTimer) -- 倒计时总时长 单位：毫秒
    self.leftTime = FP.newV1(0):Reset(maxTimer)  -- 剩余时长 单位：毫秒
end

function SkillDecoratorTimingUseSkill:OnLogicUpdate()
    if not self.enable then
        return
    end
    if FP_Greater(self.leftTime,0) then
        self.leftTime:Sub(LuaConst.TimeSpanMs)
        if FP_LessEquals(self.leftTime,0) then
            -- 可使用技能了
            if self.entity:IsAlive() then
                self.entity.components.record.BtnSkillId = self.skillID -- 设置是通过按钮触发的技能（防止事件ENTITY_SKILL_START不派发）
                SystemManager.SetNextState(LuaConst.StateType.Attack,self.entity,self.skillID,"",{})
            end
            -- 删除此Decorator
            self.enable = false
            -- 告知UI
            EventSystem.Dispatch(EventID.UI_BattleAttack_ResetBtn, self.entity, self.skillID, self.UIType, nil)
        end
    end
end

-- ui上面渲染的方法
function SkillDecoratorTimingUseSkill:OnUIBtn()
    EventSystem.Dispatch(EventID.UI_BattleAttack_ResetBtn, self.entity, self.skillID, self.UIType, self.leftTime, self.maxTimer)
end

function SkillDecoratorTimingUseSkill:SetEnable(value)
    self.leftTime:Reset(self.maxTimer)
    self.enable = value
end

function SkillDecoratorTimingUseSkill.StringParamToFormat(str)
    return tonumber(str)
end

--AI 需要执行的特殊处理
function SkillDecoratorTimingUseSkill:OnAICantRunToNextPos(command)
    if self.enable and FP_Greater(self.leftTime,0) then
        command.SkillIndex = self.entity.components.skillBase:GetSkillIndexBySkillID(self.skillID)
    end
end
return SkillDecoratorTimingUseSkill