wb

local c = require("component")
local r = require("robot")
local pc = require("computer")
local sh = require("shell")
local ic = c.inventory_controller
length = 160
torchLen = 9
minEnergy = 10000
invSize = r.inventorySize()

function suckAll()
  while c.tractor_beam.suck() do
  end
end

function move()
  bE,sE = r.detect()
  while sE ~= "air" do
    os.sleep(1)
    bE, sE = r.detect()
  end
  r.forward()
end

function printInfo(i)
  sh.execute("clear")
  print(i)
end

function pushToInventory()
  for j=1, invSize-3 do
    r.select(j)
    r.drop()
  end
end

function digUp()
  if not r.swingUp() then
    r.select(invSize-2)
    ic.equip()
    r.swingUp()
    ic.equip()
  end
end
function dig()
  if not r.swing() then
    r.select(invSize-2)
    ic.equip()
    r.swing()
    ic.equip()
  end
end
function digDown()
  if not r.swingDown() then
    r.select(invSize-2)
    ic.equip()
    r.swingDown()
    ic.equip()
  end
end

function craftPickAndCharge(lenFromHome)
  r.turnAround()
  r.down()
  for k=1, lenFromHome do
    if not r.detectDown() then
      r.select(invSize-1)
      r.placeDown()
    end
    move()
  end
  r.turnRight()
  pushToInventory()
  while pc.energy() < minEnergy do
    os.sleep(5)
  end
  for k = 1, 3 do
    r.select(k)
    ic.suckFromSlot(3, 1, 1)
  end
  r.select(6)
  ic.suckFromSlot(3,2,1)
  r.select(10)
  ic.suckFromSlot(3,2,1)
  c.crafting.craft(1)
  r.select(9)
  ic.equip()
  c.crafting.craft(1)
  ic.equip()
  r.turnRight()
  for k=1, lenFromHome do
    move()
  end
  r.up()
end

function digTD()
  dig()
  move()
  digUp()
  digDown()
end

r.up()
for i=1, length do
  printInfo(i)
  bB, sB = r.detect()
  if sB == "solid" then
    digTD()
    r.turnLeft()
    digTD()
    if i%torchLen == 0 then
      r.select(invSize)
      r.placeUp(3, false)
    end
    r.turnAround()
    move()
    digTD()
    r.turnAround()
    move()
    r.turnRight()
    if r.durability() < 0.12 then
      craftPickAndCharge(i)
    end
  else
    move()
  end
end
r.turnAround()
for i=1, length do
  move()
end
r.down()
r.turnRight()
pushToInventory()
r.turnRight()