tst

--Usage: open and edit priceSet to set the prices of your items to be listed.
os.loadAPI("buttonAPI")
os.loadAPI("priceSet")

local modem = peripheral.wrap("top")
local monitor = peripheral.wrap("right")
local chestStock = peripheral.wrap("container_chest_12")
local chestBank = peripheral.wrap("container_chest_11")
local chestPay = peripheral.wrap("container_chest_13")
local chestOut = peripheral.wrap("container_chest_10")

chestStock.condenseItems()
monitor.clear()
modem.open(1)

local items = chestStock.getAllStacks()
local itemNames = {}
local itemQtys = {}
local functions = {}
local itemPrices = {}
local itemQtyPerPurchase = {}
local buyQty = {}
local correctNames = {}
local width = nil
local height = nil
width, height = monitor.getSize()
local xDraw = 3
local yDraw = 2

function indexChest(chestName)
  items = chestName.getAllStacks()
  itemNames = {}
  itemQtys = {}
  currItemNum = 1
  chestName.condenseItems()

  for i = 1, #items do
    itemName = nameFix(items, i)
    dupCheck = checkForDuplicates(itemNames, itemName)
    if dupCheck ~= nil then
      itemQtys[dupCheck] = itemQtys[dupCheck] + items[i].qty
    else
      itemNames[currItemNum] = itemName
      itemQtys[currItemNum] = items[i].qty
      currItemNum = currItemNum + 1
    end
  end
end

function nameFix(item, i)
  itemName = item[i].name
  if string.find(itemName, string.char(167)) ~= nil then
    itemName = string.sub(itemName, 4)
  end

  if string.find(itemName, "tile.extrautils:") ~= nil then
    itemName = string.sub(itemName, 17)
  end

  if string.find(itemName, "Infinity Orb") ~= nil then
    if item[i].dmg == 10 then
      itemName = "B. Infinity Orb"
    elseif item[i].dmg == 11 then
      itemName = "G. Infinity Orb"
    elseif item[i].dmg == 12 then
      itemName = "R. Infinity Orb"
    end
  end

  if correctNames[itemName] ~= nil then
    itemName = correctNames[itemName]
  end

  return itemName
end

function checkForDuplicates(itemNames, newItem)
  for j = 1, #itemNames do
    if newItem == itemNames[j] then
      return j
    end
  end
  return nil
end

function findSlotNumber(items, name)
  for j = 1, #items do
    if name == items[j].name then
      return j
    end
  end
  return nil
end

function fillTable()
  j = 1
  yDraw = 2
  xDraw = 2
  buttonAPI.setTableNormal("Twilight Forest (1 Iron)", openDoor, xDraw, xDraw + 24, yDraw, yDraw + 2)
  yDraw = 6
  for i = 1, #itemNames do
    buttonAPI.setTable(itemNames[i] .. ", " .. itemQtys[i] .. " ($" .. itemPrices[itemNames[i]] .. ")", printItem, {i}, xDraw, xDraw + 24, yDraw, yDraw + 2)
    yDraw = 2 + (j+1)*4
    j = j + 1
    if yDraw >= height then
      yDraw = 2
      xDraw = xDraw + 28
      j = 1
    end
  end
  buttonAPI.screen()
end

function purchaseButtons(id)
  buttonAPI.setTable("Confirm", confirm, id, 2, 10, 20, 22)
  buttonAPI.setTableNormal("Cancel", cancel, 47, 55, 20, 22)
  buttonAPI.screen()
end

function quantityButtons(id)
  buttonAPI.setTable("+", addQuantity, id, 2, 6, 20, 22)
  buttonAPI.setTable("Continue", confirmScreen, id, 16, 24, 20, 22)
  buttonAPI.setTableNormal("Cancel", cancel, 29, 37, 20, 22)
  buttonAPI.setTable("-", subQuantity, id, 51, 55, 20, 22)
  buttonAPI.screen()
end

function addQuantity(id)
  if buyQty[itemNames[id]] + itemQtyPerPurchase[itemNames[id]] <= itemQtys[id] then
    buyQty[itemNames[id]] = buyQty[itemNames[id]] + itemQtyPerPurchase[itemNames[id]]
  end
  buttonAPI.label(3, 18, "Quantity to buy: " .. buyQty[itemNames[id]] .. ".    ")
  buttonAPI.label(25, 18, "Total Cost: $" .. (itemPrices[itemNames[id]] * buyQty[itemNames[id]])/itemQtyPerPurchase[itemNames[id]] .. ".    ")
end

function subQuantity(id)
  if buyQty[itemNames[id]] >= itemQtyPerPurchase[itemNames[id]] then
    buyQty[itemNames[id]] = buyQty[itemNames[id]] - itemQtyPerPurchase[itemNames[id]]
  end
  buttonAPI.label(3, 18, "Quantity to buy: " .. buyQty[itemNames[id]] .. ".    ")
  buttonAPI.label(25, 18, "Total Cost: $" .. (itemPrices[itemNames[id]] * buyQty[itemNames[id]])/itemQtyPerPurchase[itemNames[id]] .. ".    ")
end

function confirmScreen(id)
  buttonAPI.clearTable()
  if (buyQty[itemNames[id]] > 1 and string.sub(itemNames[id], string.len(itemNames[id]) ) ~= "s") then
    buttonAPI.label(3, 2, "You are attemping to purchase " .. buyQty[itemNames[id]] .. " " .. itemNames[id] .. "s.")
  else
    buttonAPI.label(3, 2, "You are attemping to purchase " .. buyQty[itemNames[id]] .. " " .. itemNames[id] .. ".")
  end
  buttonAPI.label(3, 6, "Total Cost: $" .. (itemPrices[itemNames[id]] * buyQty[itemNames[id]])/itemQtyPerPurchase[itemNames[id]] .. ".    ")
  buttonAPI.label(3, 10, "Please confirm to continue or cancel to leave.")
  purchaseButtons(id)
end

function getClick()
  event,side,x,y = os.pullEvent("monitor_touch")
  buttonAPI.checkxy(x, y)
end

function confirm(id)
  slot = checkForDuplicates(items, itemNames[id])
  i = 1
  leave = false
  remaining = 0

  sendMessage("getPayment", id, slot, remaining)
  evnt, side, sendCh, recCh, message, sendDistance = os.pullEvent("modem_message")
  while (message == "atPayment" and leave ~= true) do
    if i > 10 then
      leave = true
      remaining = 0
    elseif message == "noChange" then
      leave = true
      buttonAPI.label(15, 6, "Correct change could not be found. Please contact the shop owner or try a smaller currency.")
    else
      sendMessage("collectPayment", id, slot, remaining)
      evnt, side, sendCh, recCh, message, sendDistance = os.pullEvent("modem_message")
      evnt, side, sendCh, recCh, remaining, sendDistance = os.pullEvent("modem_message")
      sleep(2)
      i = i + 1
    end
  end
  if leave ~= true then
    sendMessage("collectItem", id, slot, remaining)
    evnt, side, sendCh, recCh, message, sendDistance = os.pullEvent("modem_message")
    evnt, side, sendCh, recCh, extra, sendDistance = os.pullEvent("modem_message")
    sendMessage("depositPayment", id, slot, extra)
    evnt, side, sendCh, recCh, message, sendDistance = os.pullEvent("modem_message")
    sendMessage("backToStart", id, slot, remaining)
  end
  cancel()
end

function cancel()
  buttonAPI.clearTable()
  buyQty = priceSet.setQPP()
  indexChest(chestStock)
  fillTable()
end

function printItem(id)
  local i = id[1]
  local name = itemNames[i]
  local qty = itemQtys[i]
  buyQty[name] = itemQtyPerPurchase[name]

  buttonAPI.clearTable()
  if itemQtys[i] > 1 then
    if string.sub(name, string.len(name)) ~= "s" then
      buttonAPI.label(3, 2, "There are " .. qty .. " " .. name .."s.")
    else
      buttonAPI.label(3, 2, "There are " .. qty .. " " .. name .. ".")
    end
    buttonAPI.label(3, 6, "To increase the quantity press the \"+\" button,")
    buttonAPI.label(3, 8, "\"-\" to decrease.")
    buttonAPI.label(3, 12, "Once the quantity is correct press \"Continue\"")
    buttonAPI.label(3, 14, "or press \"Cancel\" to leave.")
    buttonAPI.label(3, 18, "Quantity to buy: " .. buyQty[name] .. ".    ")
    buttonAPI.label(25, 18, "Total Cost: $" .. (itemPrices[name] * buyQty[name])/itemQtyPerPurchase[name] .. ".    ")
    quantityButtons(i)
  else
    confirmScreen(i)
  end
end

function openDoor()
  redstone.setOutput("back", false)
  sleep(2)
  redstone.setOutput("back", true)
end

function findChange(changeAmount)
  indexChest(chestBank)

  totalChestValue = 0

  for i = 1, #itemNames do
    totalChestValue = totalChestValue + (itemPrices[itemNames[i]] * itemQtys[i])
  end

  if totalChestValue >= changeAmount then
    return true
  else
    return false
  end
end

function sendMessage(type, id, slot, remaining)
  indexChest(chestStock)
  if #itemNames > 0 then
    name = itemNames[id]
    qty = itemQtys[id]
    price = itemPrices[name]
    qtyBuying = buyQty[name]
    itemQPP = itemQtyPerPurchase[name]
    if remaining == 0 then
      cost = (price * qtyBuying)/itemQPP
    else
      cost = remaining
    end
  end

  totalChestValue = 0
  bioChestValue = 0
  gioChestValue = 0
  rioChestValue = 0

  if type == "getPayment" then
    modem.transmit(1, 1, "getPayment")
    print("1 -> 1 : getPayment")
  elseif type == "collectPayment" then
    indexChest(chestPay)
    for i = 1, #itemNames do
      totalChestValue = totalChestValue + (itemPrices[itemNames[i]] * itemQtys[i])
      if itemNames[i] == "B. Infinity Orb" then
        bioLocation = i
        bioChestValue = bioChestValue + (itemPrices[itemNames[i]] * itemQtys[i])
      elseif itemNames[i] == "G. Infinity Orb" then
        gioLocation = i
        gioChestValue = gioChestValue + (itemPrices[itemNames[i]] * itemQtys[i])
      elseif itemNames[i] == "R. Infinity Orb" then
        rioLocation = i
        rioChestValue = rioChestValue + (itemPrices[itemNames[i]] * itemQtys[i])
      end
    end
    if totalChestValue < cost then
      if #items == 0 then
        buttonAPI.label(15, 6, "No payment has been found. Try again.")
        modem.transmit(1, 1, "wrongPayment")
        print("1 -> 1 : items = 0, wrongPayment")
      else
        buttonAPI.label(15, 6, "The amount entered is not enough! Missing: $" .. cost)
        modem.transmit(1, 1, "wrongPayment")
        print("1 -> 1 : tCV < " .. cost .. ", wrongPayment")
      end
    elseif totalChestValue == cost then
      for i = 1, #items do
        chestPay.pushItem("down", i, itemQtys[i])
      end
      modem.transmit(1, 1, "collectPayment")
      print("1 -> 1 : rem = 0, collectPayment")
      modem.transmit(1, 1, 0)
    elseif totalChestValue > cost then
    print("Total chest value = " .. totalChestValue)
    print("B. IO. chest value = " .. bioChestValue)
    print("G. IO. chest value = " .. gioChestValue)
    print("R. IO. chest value = " .. rioChestValue)
      if bioChestValue >= cost then
        costDiff = bioChestValue - cost
        chestPay.pushItem("down", bioLocation, itemQtys[bioLocation] - costDiff)
        modem.transmit(1, 1, "collectPayment")
        print("1 -> 1 : bio >= cost, " .. bioChestValue .. " >= " .. cost .. ", collectPayment")
        modem.transmit(1, 1, 0)
      elseif gioChestValue >= cost then
        qtyToGet = math.floor(cost/(itemQtyPerPurchase[itemNames[gioLocation]] * itemPrices[itemNames[gioLocation]] ))
        rem = cost - itemPrices[itemNames[gioLocation]] * qtyToGet
        if rem > 0 then
          if bioChestValue >= rem then
            chestPay.pushItem("down", bioLocation, rem)
            chestPay.pushItem("down", gioLocation, qtyToGet)
            modem.transmit(1, 1, "collectPayment")
            print("1 -> 1 : gio >= cost, bio >= rem, collectPayment")
            modem.transmit(1, 1, 0)
          else
            extra = itemPrices[itemNames[gioLocation]] - rem
            if findChange(extra) then
              chestPay.pushItem("down", gioLocation, qtyToGet + 1)
              modem.transmit(1, 1, "collectPayment")
              print("1 -> 1 : gio >= cost, extra = " .. extra .. ", collectPayment")
              modem.transmit(1, 1, extra)
            end
            else
              modem.transmit(1, 1, "noChange")
              print("1 -> 1 : gio >= cost, noChange")
              break
            end
        else
          chestPay.pushItem("down", gioLocation, qtyToGet)
          modem.transmit(1, 1, "collectPayment")
          print("1 -> 1 : gio >= cost, collectPayment")
          modem.transmit(1, 1, 0)
        end
      elseif bioChestValue + gioChestValue >= cost then
        qtyToGet = math.floor(cost/(itemQtyPerPurchase[itemNames[gioLocation]] * itemPrices[itemNames[gioLocation]] ))
        rem = cost - itemPrices[itemNames[gioLocation]] * qtyToGet
        chestPay.pushItem("down", bioLocation, rem)
        chestPay.pushItem("down", gioLocation, qtyToGet)
        modem.transmit(1, 1, "collectPayment")
        print("1 -> 1 : bio + gio >= cost, collectPayment")
        modem.transmit(1, 1, 0)
      elseif rioChestValue >= cost then
        qtyToGet = math.floor(cost/(itemQtyPerPurchase[itemNames[rioLocation]] * itemPrices[itemNames[rioLocation]] ))
        rem = cost - itemPrices[itemNames[rioLocation]] * qtyToGet
        if rem > 0 then
          if bioChestValue >= rem then
            chestPay.pushItem("down", bioLocation, rem)
            chestPay.pushItem("down", rioLocation, qtyToGet)
            modem.transmit(1, 1, "collectPayment")
            print("1 -> 1 : rio >= cost, rem > 0, bio >= rem, collectPayment")
            modem.transmit(1, 1, 0)
          elseif gioChestValue >= rem then
            qtyToGet = math.floor(extra/(itemQtyPerPurchase[itemNames[gioLocation]] * itemPrices[itemNames[gioLocation]] ))
            rem = extra - itemPrices[itemNames[gioLocation]] * qtyToGet
            if rem > 0 then
              if bioChestValue >= rem then
                chestPay.pushItem("down", bioLocation, rem)
                chestPay.pushItem("down", gioLocation, qtyToGet)
                modem.transmit(1, 1, "collectPayment")
                print("1 -> 1 : rio >= cost, rem > 0, gio >= rem, bio >= rem2, collectPayment")
                modem.transmit(1, 1, 0)
              end
            else
              chestBank.pullItem("up", gioLocation, qtyToGet)
              modem.transmit(1, 1, "collectPayment")
              print("1 -> 1 : rio >= extra, rem > 0, gio >= rem, collectPayment")
              modem.transmit(1, 1, 0)
            end
          end
        else
          extra = (qtyToGet+1)*itemPrices[itemNames[rioLocation]] - cost
          if findChange(extra) then
            chestPay.pushItem("down", rioLocation, qtyToGet+1)
            modem.transmit(1, 1, "collectPayment")
            print("1 -> 1 : rio >= cost, extra = " .. extra .. ", collectPayment")
            modem.transmit(1, 1, extra)
          else
            modem.transmit(1, 1, "noChange")
            print("1 -> 1 : rio >= cost, noChange")
            break
          end
        end
      end
    end
  elseif type == "collectItem" then
    targetSlot = findSlotNumber(items, name)
    print(targetSlot)
    nextSlot = 0
    while qtyBuying >= 64 do
      chestStock.pushItem("up", targetSlot + nextSlot, 64)
      qtyBuying = qtyBuying - 64
      nextSlot = nextSlot + 1
    end
    chestStock.pushItem("up", targetSlot + nextSlot, qtyBuying)
    modem.transmit(1, 1, "dropOffPayment")
    print("1 -> 1 : qtyBuying = " .. qtyBuying .. ", dropOffPayment")
    modem.transmit(1, 1, qtyBuying)
  elseif type == "depositPayment" then
    extra = remaining
    indexChest(chestBank)
    for i = 1, #itemNames
      totalChestValue = totalChestValue + itemPrices[itemNames[i]]*itemQtys[i]
      if itemNames[i] == "B. Infinity Orb" then
        bioLocation = i
        bioChestValue = bioChestValue + itemPrices[itemNames[i]]*itemQtys[i]
      elseif itemNames[i] == "G. Infinity Orb" then
        gioLocation = i
        gioChestValue = gioChestValue + itemPrices[itemNames[i]]*itemQtys[i]
      elseif itemNames[i] == "R. Infinity Orb" then
        rioLocation = i
        rioChestValue = rioChestValue + itemPrices[itemNames[i]]*itemQtys[i]
      end
    end

    if bioChestValue >= extra then
      extraDiff = bioChestValue - extra
      chestBank.pullItem("up", bioLocation, extraDiff)
      modem.transmit(1, 1, "dropOffItem")
      print("1 -> 1 : bio >= extra, dropOffItem")
    elseif gioChestValue >= extra then
      qtyToGet = math.floor(extra/(itemQtyPerPurchase[itemNames[gioLocation]] * itemPrices[itemNames[gioLocation]] ))
      rem = extra - itemPrices[itemNames[gioLocation]] * qtyToGet
      if rem > 0 then
        if bioChestValue >= rem then
          chestBank.pullItem("up", bioLocation, rem)
          chestBank.pullItem("up", gioLocation, qtyToGet)
          modem.transmit(1, 1, "dropOffItem")
          print("1 -> 1 : gio >= extra, rem > 0, bio >= extra, dropOffItem")
        end
      else
        chestBank.pullItem("up", gioLocation, qtyToGet)
        modem.transmit(1, 1, "dropOffItem")
        print("1 -> 1 : gio >= cost, dropOffItem")
      end
    elseif bioChestValue+gioChestValue >= extra then
      qtyToGet = math.floor(cost/(itemQtyPerPurchase[itemNames[gioLocation]] * itemPrices[itemNames[gioLocation]] ))
      rem = cost - itemPrices[itemNames[gioLocation]] * qtyToGet
      chestPay.pushItem("down", bioLocation, rem)
      chestPay.pushItem("down", gioLocation, qtyToGet)
      modem.transmit(1, 1, "dropOffItem")
      print("1 -> 1 : bio + gio >= extra, dropOffItem")
    elseif rioChestValue >= extra
      qtyToGet = math.floor(cost/(itemQtyPerPurchase[itemNames[rioLocation]] * itemPrices[itemNames[rioLocation]] ))
      rem = cost - itemPrices[itemNames[rioLocation]] * qtyToGet
      if rem > 0 then
        if bioChestValue >= rem then
          chestBank.pullItem("up", bioLocation, rem)
          chestBank.pullItem("up", rioLocation, qtyToGet)
          modem.transmit(1, 1, "dropOffItem")
          print("1 -> 1 : rio >= extra, rem > 0, bio >= rem, dropOffItem")
        elseif gioChestValue >= rem then
          qtyToGet = math.floor(extra/(itemQtyPerPurchase[itemNames[gioLocation]] * itemPrices[itemNames[gioLocation]] ))
          rem = extra - itemPrices[itemNames[gioLocation]] * qtyToGet
          if rem > 0 then
            if bioChestValue >= rem then
              chestBank.pullItem("up", bioLocation, rem)
              chestBank.pullItem("up", gioLocation, qtyToGet)
              modem.transmit(1, 1, "dropOffItem")
              print("1 -> 1 : rio >= extra, rem > 0, gio >= rem, bio >= rem2, dropOffItem")
            end
          else
            chestBank.pullItem("up", gioLocation, qtyToGet)
            modem.transmit(1, 1, "dropOffItem")
            print("1 -> 1 : rio >= extra, rem > 0, gio >= rem, dropOffItem")
          end
        end
      end
    end
  elseif type == "backToStart" then
    modem.transmit(1, 2, "backToStart")
    print("1 -> 1 : backToStart")
  end
end

correctNames["tile.TFTowerDevice.0.name"] = "Reappearing Block"
correctNames["cursedearthside.name"] = "Cursed Earth"
correctNames["cobblestone_compressed.0.name"] = "Compr. Cobble"
correctNames["Bucket of Liquid Essence"] = "Liquid Essence"

itemPrices = priceSet.setPrices()
itemQtyPerPurchase = priceSet.setQPP()
buyQty = priceSet.setQPP()

indexChest(chestStock)

fillTable()

while true do getClick() end