-- Script.Global.BuffSystem.BuffAction.BuffAction_Counterattack
local BuffActionBase = require('Script.Global.BuffSystem.BuffActionBase')

local BuffAction_Counterattack = setmetatable(
    {
        -- 每层增加伤害的缩放
        LayerAddDamageScale = 0.1;
        -- 每多少血量百分比增加一层
        LayerHPInterval = 0.1;
        -- 基础层级
        BaseLayer = 1;


        -- 上一层级
        LastLayer = 0;
    },
    { __index = BuffActionBase, __metatable = BuffActionBase }
);

function BuffAction_Counterattack:LuaDoAction()
    BuffActionBase.LuaDoAction(self)

    if not UGCGameSystem.IsServer() then return true end
    UGCLogSystem.Log("[BuffAction_Counterattack_LuaDoAction]")
    self:GetOwnerPawn().OnCharacterHpChange:Add(self.UpdateNowDamageScale, self)
    local NowHP = UGCPawnAttrSystem.GetHealth(self:GetOwnerPawn())
    local NowMaxHP = UGCPawnAttrSystem.GetHealthMax(self:GetOwnerPawn())
    self:UpdateNowDamageScale(NowHP,NowMaxHP,NowHP)
end

function BuffAction_Counterattack:LuaUndoAction()
    BuffActionBase.LuaUndoAction(self)
    if not UGCGameSystem.IsServer() then return true end
    UGCLogSystem.Log("[BuffAction_Counterattack_LuaUndoAction]")
    local OwnerPawn = self:GetOwnerPawn()
    if UE.IsValid(OwnerPawn) then
        OwnerPawn:SetDamageScale(OwnerPawn:GetDamageScale() / self:GetDamageScaleFromLayer(self.LastLayer))
        self.LastLayer = 0
    end
end

function BuffAction_Counterattack:UpdateNowDamageScale(CurrentHP,MaxHP,PrevHP)
    UGCLogSystem.Log("[BuffAction_Counterattack_UpdateNowDamageScale] CurrentHP:%s,MaxHP:%s,PrevHP:%s", tostring(CurrentHP), tostring(MaxHP), tostring(PrevHP))
    local OwnerPawn = self:GetOwnerPawn()
    if UE.IsValid(OwnerPawn) then
        local NowLayer = (MaxHP - CurrentHP) / MaxHP // self.LayerHPInterval + self.BaseLayer
        if NowLayer ~= self.LastLayer then
            OwnerPawn:SetDamageScale(OwnerPawn:GetDamageScale() / self:GetDamageScaleFromLayer(self.LastLayer) * self:GetDamageScaleFromLayer(NowLayer))
            self.LastLayer = NowLayer
        end
    end
end

function BuffAction_Counterattack:GetDamageScaleFromLayer(Layer)
    return Layer * self.LayerAddDamageScale + 1
end

return BuffAction_Counterattack;