printerMacdo.lua

local printer = peripheral.find("printer")

local t = { ["BigMalc"]=7, ["Frite"]=3, ["Coca"]=4 }

name = "Malcorp"
numero = "1"

local function arrondi(x)
    return math.floor(x * 100 + 0.5) / 100
end

printer.newPage()
printer.setPageTitle("Paiement Macdo")
printer.setCursorPos(3, 1)
printer.write("Bienvenue a Malcordal's")
printer.setCursorPos(1,2)
printer.write("----------------------------")
printer.setCursorPos(5,4)
printer.write("Bonjour "..name)
printer.setCursorPos(1,5)
printer.write("Votre commande numero :"..numero)
printer.setCursorPos(1,6)
printer.write("le "..os.date("%d/%m/%Y").." a "..os.date("%H:%M:%S"))
printer.setCursorPos(1,7)
printer.write("----------------------------")
printer.setCursorPos(1,8)
printer.write("Facture : ")

cursor = 9

somme = 0

for k, v in pairs(t) do
    somme = somme + v
    cursor= cursor +1
    printer.setCursorPos(1,cursor)
    printer.write(k)
    printer.setCursorPos(13,cursor)
    printer.write("|")
    printer.setCursorPos(23,cursor)
    printer.write(v.."$")
    print(k, v)
end

cursor = cursor + 1
printer.setCursorPos(1,cursor)
printer.write("---------------------------")



cursor = cursor + 1
printer.setCursorPos(1,cursor)
printer.write("Total Hors taxe :  ")
printer.setCursorPos(23,cursor)
printer.write(somme.."$")

cursor = cursor + 1
printer.setCursorPos(1,cursor)
printer.write("Tva 20% :")
printer.setCursorPos(22,cursor)
tva = somme * 0.2
tva = arrondi(tva)
printer.write(tva.."$")

cursor = cursor + 1
printer.setCursorPos(1,cursor)
printer.write("Total TTC : ")
printer.setCursorPos(21,cursor)
ttc = somme + tva
printer.write(ttc.."$")


local PATH = "/data/points.tbl"

local t = {}
if fs.exists(PATH) then
  local f = fs.open(PATH, "r")
  local s = f.readAll(); f.close()
  t = textutils.unserialize(s) or {}
end

t[name] = (t[name] or 0) + math.floor(ttc)
fide = t[name]

local tmp = PATH..".tmp"
local f = fs.open(tmp, "w")
f.write(textutils.serialize(t))
f.close()
if fs.exists(PATH) then fs.delete(PATH) end

fs.move(tmp, PATH)

print("Mis à jour :", textutils.serialize(t))

cursor = cursor + 1
printer.setCursorPos(1,cursor)
printer.write("-------------------------")
cursor = cursor + 1
printer.setCursorPos(1,cursor)
printer.write("Points Malco : "..fide)


printer.endPage()