-- Author: Flyboxx            --
-- Date: Dec/5/2014           --
-- Version: 1.1               --
-- Updated Jan/30/2017 to 1.1 --

clearscr = function()
  term.clear()
  term.setCursorPos(1,1)
end

clearscr()

print("====== Farmer ======")
print("Ver 1.1")
print("By Flyboxx")

sleep(1)
clearscr()

-- Variables --

local args = {...}
farming = true
ystep = 1
xpos = 1
ypos = 0

-- Init --

-- Functions --

setPos = function(x, y)
  xpos = x
  ypos = y
end

returnHome = function()
  turtle.turnLeft()
  for i = 1, 8, 1 do
    turtle.forward()
  end
  turtle.turnLeft()
  for i = 1, 9, 1 do
    turtle.forward()
  end
  turtle.turnLeft()
  turtle.turnLeft()
end

clearInv = function()
  data = {}
  for i = 1,16,1 do
    turtle.select(i)
	if turtle.getItemCount(i) ~= 0 then
		data = turtle.getItemDetail()
	  if data.name == "minecraft:wheat_seeds" then
	    turtle.dropDown()
	  elseif data.name == "minecraft:wheat" then
	    turtle.turnLeft()
	    turtle.drop()
	    turtle.turnRight()
	  else
	    turtle.dropUp()
	  end
	end
  end
end

getFuel = function(arg1)
  if arg1 == "first" then
    print("Refueling...")
    turtle.turnRight()
    turtle.select(1)
    turtle.suck()
  end

  turtle.refuel(1)

  if turtle.getFuelLevel() < 99 then
    getFuel("notfirst")
  else
    --if turtle.getItemDetail().name == "minecraft:bucket" then--
	  --turtle.dropUp()--
	--else
      --turtle.drop()--
	--end--
	turtle.turnLeft()
  end
end

initFarm = function()
  clearInv()

  if turtle.getFuelLevel() < 99 then
    getFuel("first")
  end

  turtle.forward()
  setPos(1,1)
end

-- ==========*Plant Program*========== --
plant = function()
  initPlant()
  clearscr()
  print("Planting...")

  while(farming) do

    turtle.placeDown()
	if turtle.getItemCount() == 0 then
	  turtle.select(turtle.getSelectedSlot() + 1)
	end

    if xpos == 9 and ypos == 9 then
      returnHome()
	  turtle.select(1)
	  break
    end

    if ypos == 9 then
      turtle.turnRight()
	  turtle.forward()
	  xpos = xpos + 1
	  turtle.turnRight()
	  turtle.placeDown()
	  ystep = -1
    end

    if ypos == 1 and xpos ~= 1 then
      turtle.turnLeft()
	  turtle.forward()
	  xpos = xpos + 1
	  turtle.turnLeft()
	  turtle.placeDown()
	  ystep = 1
    end

    turtle.forward()
    ypos = ypos + ystep

  end
end

-- ==========*Harvest Program*========== --
harvest = function()
  initFarm()
  clearscr()
  print("Harvesting...")

  while(farming) do

    turtle.digDown()

    if xpos == 9 and ypos == 9 then
      returnHome()
	  clearInv()
	  turtle.select(1)
	  break
    end

    if ypos == 9 then
      turtle.turnRight()
	  turtle.forward()
	  xpos = xpos + 1
	  turtle.turnRight()
	  turtle.digDown()
	  ystep = -1
    end

    if ypos == 1 and xpos ~= 1 then
      turtle.turnLeft()
	  turtle.forward()
	  xpos = xpos + 1
	  turtle.turnLeft()
	  turtle.digDown()
	  ystep = 1
    end

    turtle.forward()
    ypos = ypos + ystep

  end
end

-- ==========*Main Program*========== --
while(farming) do
  harvest()
  plant()
end