--Turtles do not always detect their tools upon reloading the turtle
--unequiping and equiping the tools fixes this

turtle.select(15)
turtle.equipLeft()
turtle.equipLeft()
turtle.select(1)


print("Please put a lava source to the right of the Turtle.")
print("Put a lava bucket in the last slot (bottom right).")
print("")
print("How long is the farm?")
length = read()


function fuelCheck()
	print("Fuel check ran")
	fuel = turtle.getFuelLevel()
	while fuel < 4000 do
		turtle.turnRight()
		turtle.select(16)
		turtle.place()
		turtle.refuel()
		turtle.turnLeft()
	end
end

function farm()
	for i=1,length do
	turtle.dig()
	turtle.forward()
	turtle.digDown()
	end
end

function detectBlock()

	--Wait for farm to grow
	noBlock = true
	while noBlock do
		if noBlock == turtle.detect() then
			return false
		else
			return true
		end
	end
end


while true do
	if detectBlock() then

		--Check fuel before mining
		fuelCheck()

		farm()
		--Go to lane to the left

		turtle.turnLeft()
		turtle.forward(2)
		turtle.turnLeft()

		--Farm next lane

		farm()

		--Go back to starting position

		turtle.turnLeft()
		turtle.forward(2)
		turtle.turnLeft()

		--Reset detectBlock to restart system
		detectBlock = false
	else
		sleep(60)
	end
end