local BuffActionBase = require('Script.Global.BuffSystem.BuffActionBase')

local BuffAction_BeFatedNotToDie = setmetatable(
    {
        -- Param ---------------------------
        -- 命不该绝次数上限
        MaxCount = 1;
        -- 伤害修改函数的层级
        ModifyDamageFuncLayer = 1e4;
        -- 触发回血比例
        AddHealthPercentage = -1;
        -- 触发无敌时间
        InvincibleTime = -1;
        -- Param End -----------------------
        -- 已使用次数
        UsedBuffCount = 0;
    },
    { __index = BuffActionBase, __metatable = BuffActionBase }
);

function BuffAction_BeFatedNotToDie:LuaDoAction()
    BuffActionBase.LuaDoAction(self)
    if not UGCGameSystem.IsServer() then return true end
    UGCLogSystem.Log("[BuffAction_BeFatedNotToDie_LuaDoAction]")
    self:GetOwnerPawn():AddDamageModifyFunc(self.BeFatedNotToDieFunc, self, self.ModifyDamageFuncLayer)
end

function BuffAction_BeFatedNotToDie:LuaUndoAction()
    BuffActionBase.LuaUndoAction(self)
    if not UGCGameSystem.IsServer() then return true end
    UGCLogSystem.Log("[BuffAction_BeFatedNotToDie_LuaUndoAction]")
    if UE.IsValid(self:GetOwnerPawn()) then
        self:GetOwnerPawn():RemoveDamageModifyFunc(self.BeFatedNotToDieFunc, self, self.ModifyDamageFuncLayer)
    end
end

function BuffAction_BeFatedNotToDie:LuaResetAction()
    BuffActionBase.LuaResetAction(self)
    self.UsedBuffCount = 0
end

function BuffAction_BeFatedNotToDie:BeFatedNotToDieFunc(TargetPawn, DamageAmount, DamageType, EventInstigator, DamageCauser, Hit)
    if self.UsedBuffCount < self.MaxCount then
        local PlayerHealth = UGCPawnAttrSystem.GetHealth(TargetPawn)
        if PlayerHealth - DamageAmount < 1 then
            local OwnerPawn = self:GetOwnerPawn()
            if self:AddPlayerHealthPercentage(OwnerPawn) then
                DamageAmount = 0
            else
                DamageAmount = PlayerHealth - 1
            end
            self:AddInvincible(OwnerPawn)
            self.UsedBuffCount = self.UsedBuffCount + 1
            UGCSendRPCSystem.RPCEvent(TargetPawn.PlayerKey, EventEnum.AddTip, TipConfig.TipType.BeFatedNotToDieOwner, self.UsedBuffCount)
            if EventInstigator and EventInstigator.PlayerKey then
                UGCSendRPCSystem.RPCEvent(EventInstigator.PlayerKey, EventEnum.AddTip, TipConfig.TipType.BeFatedNotToDieCauser)
            end
        end
    end
    return DamageAmount
end

function BuffAction_BeFatedNotToDie:AddPlayerHealthPercentage(TargetPawn)
    if self.AddHealthPercentage > 0 then
        if UE.IsValid(TargetPawn) then
            UGCPawnAttrSystem.SetHealth(TargetPawn, UGCPawnAttrSystem.GetHealthMax(TargetPawn) * self.AddHealthPercentage)
        end
        return true
    end
    return false
end

function BuffAction_BeFatedNotToDie:AddInvincible(TargetPawn)
    if self.InvincibleTime > 0 then
        UGCPawnSystem.SetIsInvincible(TargetPawn, true)
        UGCEventSystem.SetTimer(UGCGameSystem.GameState, function()
            if UE.IsValid(TargetPawn) then
                UGCPawnSystem.SetIsInvincible(TargetPawn, false)
            end
        end, self.InvincibleTime)
    end
end




return BuffAction_BeFatedNotToDie;