cc tree chopper

p = peripheral.wrap("right")

function refuel()
  if turtle.getFuelLevel() <= 20 then
	p.speak("Refilling fuel.")
	sleep(2)
    turtle.select(1)
    turtle.refuel(turtle.getItemCount(1) - 1)
  end
end

function checkItems()
  if turtle.getItemCount(2) == 0 then
	p.speak("Please place a log in slot 2 to help me identify the tree. I am very blind.")
	sleep(5)
  end
  if turtle.getItemCount(3) == 0 then

  end
end

function hasLogInfront()
	turtle.select(2)
	if turtle.compare() then
		return true
	end
end

function takeDownTree()
  turtle.select(2)
  while turtle.compare() do
	turtle.select(1)
	turtle.dig()
	turtle.select(2)
	turtle.digUp()
	turtle.up()
  end
  while not turtle.detectDown() do
	turtle.down()
  end
end

function placeSapling()
	if turtle.getItemCount(3) > 1 then
		turtle.select(3)
		turtle.place()
	end
end

function bonemeal()
	if turtle.getItemCount(4) > 1 then
		turtle.select(4)
		turtle.place()
	end
end

function suckItems()
	turtle.select(1)
	turtle.suckUp()
	turtle.suckDown()
	turtle.suck()
end

while true do
	checkItems()
	refuel()
	if hasLogInfront() then
		takeDownTree()
	end
	placeSapling()
	bonemeal()
	suckItems()
	sleep(1)
end