p=0
scroll = function()
  local event, scrollDirection, x, y = os.pullEvent("mouse_scroll")
  p = p+scrollDirection
  term.setCursorPos(1, 5)
  term.write(tostring(i))
  drawjobs(p)
end

drawjobs = function(start)
  term.clear()
  for i=1, 19 do
    term.setCursorPos(1, i)
    curjob = jobs[start+i]
    if curjob then
      code = curjob:sub(1, 10)
      codes[start+i] = code
      text = curjob:sub(11, #curjob)
      term.write(text)
    else
      break
    end
  end
end



file = fs.open("job", "r")
jobs = {}
codes = {}
while true do
  line = file.readLine()
  if line then
    table.insert(jobs, line)
  else
    break
  end
end
drawjobs(0)
while true do
  parallel.waitForAny(scroll())
  parallel.waitForAny(scroll())
end