CC Place and break 2

local result, message, item_name = 0
local turtle_selected_spot = 1
local block_present, info, item_count = 0


print("Press CTRL+T to stop")



while true do --Always loop
    if turtle_selected_spot == 17 then --No items left in turtle and since we do not have a 17th inventory spot this would cause an error so start back at slot 1
        turtle_selected_spot = 1
        turtle.select(turtle_selected_spot)
        item_details = turtle.getItemDetail(turtle_selected_spot)
        if item_details == nil then --No items in slot one so we are probably out of items to place
            block_present, info = turtle.inspect() --Check block in front of turtle to see if it needs to be mined before we quit the script
            if block_present and info.name ~= "minecraft:netherrack" then
                turtle.dig()
            end
            print("Turtle out of items.")
            return
        else
            if item_details.name ~= "minecraft:netherrack" then --The item in slot one is not netherrack so drop it then quit the script
                turtle.dropUp()
                block_present, info = turtle.inspect() --Check block in front of turtle to see if it needs to be mined before we quit the script
                if block_present and info.name ~= "minecraft:netherrack" then
                    turtle.dig()
                end
                print("Turtle out of items.")
                return
            end
        end
    end
	turtle.select(turtle_selected_spot)
	turtle.suckDown() --Pull items from chest below turtle
	item_details = turtle.getItemDetail(turtle_selected_spot) --Get count and name of selected turtle inventory item

	if item_details == nil then --Turtle no longer has inventory in selected spot
		turtle_selected_spot = turtle_selected_spot + 1 --Move to next inventory spot
	end

	if item_details ~= nil then --If an item is in the selected slot then get details of that item
		if item_details.name ~= "minecraft:netherrack" then --If item is not netherrack then drop it above turtle
			turtle.dropUp()
		end
		if item_details.name == "minecraft:netherrack" then --If the item is netherrack then attempt to place in front of turtle
			--Scan block in front of turtle to see if it's empty
            block_present, info = turtle.inspect()
            if block_present and info.name ~= "minecraft:netherrack" then
                turtle.dig()
            end
            if block_present == false and item_details.name == "minecraft:netherrack" then
                turtle.place()
            end
		end
	end
end