Refuel test

function checkFuel()
    count = 0
    fuelLevel = turtle.getFuelLevel()
        while fuelLevel <= 10 and repcount <= 5000 do
            for i = 1,16 do
                turtle.select(i)
                itemInfo = turtle.getItemDetail()
                    if itemInfo ~= nil then
                        if itemInfo.name == "minecraft:coal" then
                            turtle.refuel()
                            print("Refueled ", itemInfo["count"], " coal from slot", i)
                        end
                    end
            end
            count = count + 1
        end
end