os

pri = peripheral.find("printer")


if fs.isDir("home") then
else fs.makeDir("home")
end
if fs.isDir("home/history")
else fs.makeDir("home/history")
end

local stan = 1
local prog = 1
local br = 0
local x10, y10 = term.getSize()
--shell.setDir("home

function event(event)
local event, f, s, t, fo, fi = os.pullEvent(event)
if event == "key" then
  if f == 200 then
    return "up"
    end
  if f == 208 then
    return "down"
    end
  if f == 28 then
    return "enter"
    end
  if f == 29 then
    return "ctrl"
  end
end
end


function printerCheck(y5)

if pri.getPaperLevel() < 2 then
print("Not enough paper")
return false
else
if pri.getInkLevel() < 2 then
print("Not enough Ink")
return false
else
local x,y = pri.getPageSize()
if y5 == 21 then
pri.endPage()
if pri.newPage() then
 else
 print("Check printer")
 end
end
return   true
end
end

end

 function linia(lin,x,y)
term.setCursorPos(x,y)
pri.setCursorPos(x,y)
term.setTextColor(colors.white)
term.write(lin)
h.writeLine(lin)
pri.write(lin)

end

function dalej(y)
term.setCursorPos(1,y)
term.setTextColor(colors.yellow)
term.write("By wpisac wiecej kliknij Enter")
term.setCursorPos(1,y+1)
term.write("By contynuowac kliknij Ctrl")
term.setTextColor(colors.white)
local elo = event("key")
term.setCursorPos(1,y)
term.write("                               ")
term.setCursorPos(1,y+1)
term.write("                               ")
if elo =="ctrl" then
return true
else
return false
end
end




function create_file()
local name = typ("File name")
shell.setDir("home")
shell.setDir("home/history")
if fs.exists(name) then
term.write("Error")
return 1
else
pri.newPage()
h = fs.open("home/history/" .. name,"w")
term.clear()
if printerCheck() then
linia(name,1,1)
linia("Umowa kupna",1,2)
linia("Kupujacy:",1,3)
linia(typ("Nick osoby kupujacej"),10,3)
linia("Kupuje:",1,4)
local y4 = 5
repeat
linia(typ("Produkty"),1,y4)
y4 = y4+1
until dalej(y4)
linia("Placi:",1,y4)
y4 = y4 +1
repeat
linia(typ("Zaplata"),1,y4)
y4 = y4+1
until dalej(y4)
linia("Sprzedajacy:",1,y4)
linia(typ("Nick osoby sprzedajacej"),13,y4)
linia("UnPaid",1,y4+1)
pri.endPage()
h.writeLine(math.ceil(math.abs(math.tan(os.time())*1000000)))
h.close()

else
br = 1
end
end
prog = 1
term.clear()
print("Drukowanie")
end



function typ(text)
term.setCursorPos(1,y10-1)
term.write("                                                 ")
term.setCursorPos(1,y10-1)
term.setCursorBlink(true)
term.setTextColor(colors.yellow)
term.write(text .. ">")
term.setTextColor(colors.white)
return read()
end


function decition()
if prog == 1 then
local ky = event()
print(ky)
term.clear()
  if ky == "up" then
   if stan == 1 then

   else
   stan = stan-1
   end
  end
  if ky == "down" then
    if stan == 3 then

    else
    stan = stan+1
    end
   end
  if ky == "enter" then
    prog = (stan + 1)
    end
  end
  dispay()

end

function zawarte()
shell.setDir("home/history")


function menu(x,y,op,s,text)
if op == s then
term.setCursorPos((x-((string.len(text)/2)-1)),y)
term.setTextColor(colors.yellow)
term.write(">")
else
term.setTextColor(colors.white)
term.setCursorPos((x-(string.len(text)/2)+2),y)
end
term.write(text)
if op == s then term.write("<") end
end

function dispay()
if prog == 1 then
local x, y = term.getSize()
menu((x/2)-3,7,stan,1,"Umowa")
menu((x/2)-3,8,stan,2,"Zawarte umowy")
menu((x/2)-3,9,stan,3,"Konta")
end
if prog == 2 then
term.clear()
create_file()
end
if prog == 3 then
term.clear()
end

 repeat
 decition(prog)
 sleep(0.1)


 until terminated