-- quarry_basic.lua
-- Simple 9x9 quarry (no GPS). Chest must be directly behind the starting tile.
-- Mines exact 9x9 coverage, drops trash down, deposits valuables behind, refuels from coal.
-- Mines down to Y = -53.

local TARGET_Y = -53

-- Simple lists
local trash = {
  ["minecraft:cobblestone"] = true,
  ["minecraft:dirt"] = true,
  ["minecraft:gravel"] = true,
  ["minecraft:sand"] = true,
  ["minecraft:netherrack"] = true,
}

local valuables = {
  ["minecraft:diamond"] = true,
  ["minecraft:iron_ore"] = true,
  ["minecraft:gold_ore"] = true,
  ["minecraft:coal"] = true,
  ["minecraft:redstone"] = true,
  ["minecraft:lapis_lazuli"] = true,
  ["minecraft:emerald"] = true,
  -- ATM10 ores (add any missing ones you want)
  ["alltheores:allthemodium_ore"] = true,
  ["alltheores:vibranium_ore"] = true,
  ["alltheores:unobtainium_ore"] = true,
  ["alltheores:aluminum_ore"] = true,
  ["alltheores:antimony_ore"] = true,
  ["alltheores:arcane_crystal_ore"] = true,
  ["alltheores:black_quartz_ore"] = true,
  ["alltheores:copper_ore"] = true,
  ["alltheores:lead_ore"] = true,
  ["alltheores:nickel_ore"] = true,
  ["alltheores:osmium_ore"] = true,
  ["alltheores:platinum_ore"] = true,
  ["alltheores:peridot_ore"] = true,
  ["alltheores:prosperity_ore"] = true,
  ["alltheores:runic_ore"] = true,
  ["alltheores:ruby_ore"] = true,
  ["alltheores:sapphire_ore"] = true,
  ["alltheores:silver_ore"] = true,
  ["alltheores:tin_ore"] = true,
  ["alltheores:tungsten_ore"] = true,
  ["alltheores:uranium_ore"] = true,
  ["alltheores:uraninite_ore"] = true,
  ["alltheores:zinc_ore"] = true,
  ["alltheores:xychorium_blue_ore"] = true,
  ["alltheores:xychorium_dark_ore"] = true,
  ["alltheores:xychorium_green_ore"] = true,
  ["alltheores:xychorium_light_ore"] = true,
  ["alltheores:xychorium_red_ore"] = true,
}

-- Utilities
local function forward()
  while not turtle.forward() do
    turtle.dig()
    sleep(0.1)
  end
end

local function down()
  while not turtle.down() do
    turtle.digDown()
    sleep(0.1)
  end
end

local function up()
  while not turtle.up() do
    turtle.digUp()
    sleep(0.1)
  end
end

local function countFree()
  local n = 0
  for s=1,16 do if turtle.getItemCount(s) == 0 then n = n + 1 end end
  return n
end

local function findCoal()
  for s=1,16 do
    local d = turtle.getItemDetail(s)
    if d and (d.name == "minecraft:coal" or d.name == "minecraft:charcoal") then
      return s
    end
  end
  return nil
end

local function refuelIfNeeded()
  local lvl = turtle.getFuelLevel()
  if lvl == "unlimited" then return true end
  if type(lvl) == "number" and lvl > 20 then return true end
  local s = findCoal()
  if s then
    turtle.select(s)
    turtle.refuel(1)
    return true
  end
  return false
end

local function isTrashSlot(s)
  local d = turtle.getItemDetail(s)
  if not d then return false end
  return trash[d.name] == true
end

local function isValuableSlot(s)
  local d = turtle.getItemDetail(s)
  if not d then return false end
  return valuables[d.name] == true
end

local function dropTrashDown()
  for s=1,16 do
    if isTrashSlot(s) then
      turtle.select(s)
      turtle.dropDown()
    end
  end
end

local function depositValuablesBehind()
  -- face chest behind (turn 180), drop valuables, return facing original direction
  turtle.turnLeft(); turtle.turnLeft()
  for s=1,16 do
    if isValuableSlot(s) then
      turtle.select(s)
      turtle.drop()
    end
  end
  turtle.turnLeft(); turtle.turnLeft()
end

local function chestBehindPresent()
  turtle.turnLeft(); turtle.turnLeft()
  local ok, data = turtle.inspect()
  turtle.turnLeft(); turtle.turnLeft()
  if ok and data and (string.find(data.name or "", "chest") or string.find(data.name or "", "barrel")) then
    return true
  end
  return false
end

-- 9x9 miner (bottom-left corner start, facing INTO grid)
local function mine9x9()
  local turnRight = true

  for row = 1, 9 do
    for col = 1, 9 do
      -- fuel and dig only the required faces
      refuelIfNeeded()
      pcall(turtle.digUp)
      turtle.dig()   -- clear the block in front (this is the cell)
      pcall(turtle.digDown)

      if col < 9 then
        forward()
        pcall(turtle.digDown)
      end

      -- if inventory low, drop trash now
      if countFree() <= 2 then
        dropTrashDown()
        if countFree() == 0 then
          if chestBehindPresent() then depositValuablesBehind() end
        end
      end
    end

    if row < 9 then
      if turnRight then
        turtle.turnRight()
        turtle.dig()
        forward()
        turtle.turnRight()
      else
        turtle.turnLeft()
        turtle.dig()
        forward()
        turtle.turnLeft()
      end
      turnRight = not turnRight
    end
  end

  -- return to starting corner and facing
  turtle.turnLeft(); turtle.turnLeft()
  for i=1,8 do forward() end
  turtle.turnRight()
  for i=1,8 do forward() end
  turtle.turnRight()
end

-- MAIN
print("Enter starting absolute Y (example: 64):")
local currentY = tonumber(read())
if not currentY then
  error("Invalid starting Y.")
end
if currentY <= TARGET_Y then
  error("Starting Y must be above "..TARGET_Y)
end

if not chestBehindPresent() then
  print("Warning: chest not detected behind start. Place a chest directly behind turtle.")
end

while currentY > TARGET_Y do
  mine9x9()
  dropTrashDown()
  if countFree() == 0 then
    if chestBehindPresent() then
      depositValuablesBehind()
    else
      error("Inventory full and no chest behind. Manual intervention required.")
    end
  end

  down()
  currentY = currentY - 1
end

-- final deposit
if chestBehindPresent() then depositValuablesBehind() end
print("Quarry finished at Y = "..currentY)