main

function refuel()
    if turtle.getFuelLevel() < 50 then
        for slot = 1, 16 do
            turtle.select(slot)
            item = turtle.getItemDetail()
            if item == nill then

            else
                if item.name == "minecraft:coal" then
                    turtle.refuel(1)
                    end
            if slot == 16 then
            print("No fuel to add! ")
            end
            end
        end
    end
end

function dig()
    if turtle.getFuelLevel() > 1 then
    print("Enter amount of blocks" )
    amount = read()
    for i = 1, tonumber(amount) do
        check_block()
        turtle.dig()
        turtle.forward()
    end

    else
        refuel()
    end

end

function check_block()
    local success, data = turtle.inspect()
    if data == "minecraft:diamond" then
        turtle.select(15)
    elseif data == "miencraft:iron_ore" then
        turtle.select(14)
    elseif data == "minecraft:gold_ore" then
        turtle.select(13)
    elseif data == "minecraft:stone" then
        turtle.select(12)
        print("gay")
    end
end



dig()
refuel()