I want to make button, that gives you tool once. How i can make it with my script?

I want to make item, buyable from the button, that gives you only one tool, that you must to buy for money, and after tool has appeared in your inventory, you can't buy another same tool per your server rejoining.

Code: local Item = script.Parent.Item --Gun local Price = script.Parent.Price -- 200 local Currency = script.Parent.Currency --Money local Debounce = true

script.Parent.Touched:Connect(function(Hit)

local Player = game:GetService("Players"):GetPlayerFromCharacter(Hit.Parent)
if Player and Debounce == true and not Player:WaitForChild("Backpack"):FindFirstChild(Item.Name) then
	Debounce = false
	script.Connect(function(player)
	local CurrencyName = player.leaderstats:FindFirstChild(Currency.Value)
local ItemName = game.ReplicatedStorage:FindFirstChild(Item.Value)
if CurrencyName.Value >=Price.Value  then
CurrencyName.Value = CurrencyName.Value - Price.Value
ItemName:Clone().Parent = player.StarterGear
		ItemName:Clone().Parent = player.Backpack

end end) end end) .

Firstly, let me make that script more clear. Then, script.Connect part looks kinda useless. Notice how you put .Value at player.leaderstats:FindFirstChild(Currency.Value) and then assign a .Value again CurrencyName.Value. Same with Item. You also create ItemName when you already have local Item. And you should check if player has a gun equipped right now else he's gonna be able to have 2 guns at the same time. I suppose it should be looking like this:

local Item = script.Parent.Gun
local Price = script.Parent.Price
local Debounce = false


script.Parent.Touched:Connect(function(Hit)
	local Player = game:GetService("Players"):GetPlayerFromCharacter(Hit.Parent)
	
	if Player and Debounce == false and not Player.Backpack:FindFirstChild(Item.Name) and not Hit.Parent:FindFirstChild(Item.Name) then -- checks for gun in player's hands as well
		Debounce = true	
		
		local playerCurrency = Player.leaderstats:FindFirstChild("Currency")	
		if playerCurrency.Value >= Price.Value  then
			
			playerCurrency.Value = playerCurrency.Value - Price.Value	
			
			Item:Clone().Parent = Player.Backpack		
				
			Debounce = false
		end	
	end
end)