Factures

term.clear()
term.setCursorPos(1,1)
local id = ""
local prixU = ""
local nombre = ""
local prix = ""
local client = ""

function getPrinters()
        local periList = peripheral.getNames()
        local i = 1
        local r = {}
        for j = 1, #periList do
                if peripheral.getType(periList[j]) == "printer" then
                        r[i] = periList[j]
                        i = i+1
                end
        end
        return r
end

function printBill(p)
        local periList = getPrinters()
        local printer
        for i=1, #periList do
                if i == tonumber(p) then
                        printer = peripheral.wrap(periList[i])
                end
        end
        printer.newPage()
    printer.write("*-*-*-*-*-*-*-*-*-*-*-*-*")
    printer.setCursorPos(1,2)
        printer.write("id : ".. id)
    printer.setCursorPos(1,3)
    printer.write("prix unitaire : ".. prixU)
        printer.setCursorPos(1,4)
    printer.write("nombre : ".. nombre)
    printer.setCursorPos(1,5)
        printer.write("prix : ".. prix)
        printer.setCursorPos(1,6)
        printer.write("client : ".. client)
    printer.setCursorPos(1,7)
    printer.write("*-*-*-*-*-*-*-*-*-*-*-*-*")
        printer.endPage()
end

print("")
 local periList = getPrinters()

if table.getn(periList) > 0 then
        write("ID : ")
        id = read()
    write("Nombre d'item(s) : ")
        nombre = read()
    write("Prix unitaire: ")
        prixU = read()
        write("Prix : ")
        prix = read()
        write("Client : ")
        client = read()
        local selected = 1

        while true do
                term.clear()

                for i=1, #periList do
                        if i>7 then break end

                        if selected == i then
                                term.setCursorPos(1,i)
                                write(">")
                        else
                                term.setCursorPos(2,i)
                        end
                        write(periList[i])
                        if selected == i then
                                write("<")
                        end
                end
                local e, k = os.pullEvent("key")
                sleep(0.1)
                if k == 200 then
                        if selected > 1 then
                                selected = selected - 1
                        else
                                selected = table.getn(periList)
                        end
                elseif k == 208 then
                        if selected < table.getn(periList) then
                                selected = selected+1
                        else
                                selected = 1
                        end
                elseif k == 28 then
                        break
                end
        end
        printBill(selected)
    printBill(selected)
else
        print("No printer found")
end

print("")
print("Press any key to quit")
os.pullEvent("key")