todo program

notBegunC = colors.white
inProgressC = colors.yellow
completedC = colors.lime
cancelledC = colors.pink
deprecatedC = colors.lightGray

monitor = peripheral.wrap("right")

line = 4

function writeState(state,line)
  if(state==1) then
    if monitor.isColor() then monitor.setTextColor(notBegunC) end
    monitor.setCursorPos(68,line)
    monitor.write("Not begun")
  elseif(state==2) then
    if monitor.isColor() then monitor.setTextColor(inProgressC) end
    monitor.setCursorPos(66,line)
    monitor.write("In Progress")
  elseif(state==3) then
    if monitor.isColor() then monitor.setTextColor(completedC) end
    monitor.setCursorPos(68,line)
    monitor.write("Completed")
  elseif(state==4) then
    if monitor.isColor() then monitor.setTextColor(cancelledC) end
    monitor.setCursorPos(68,line)
    monitor.write("Cancelled")
  elseif(state==5) then
    if monitor.isColor() then monitor.setTextColor(deprecatedC) end
    monitor.setCursorPos(67,line)
    monitor.write("Deprecated")
  end
end

function wl(state,text)
  state=tonumber(state)

  if monitor.isColor() then
    if(state==1) then monitor.setTextColor(notBegunC)
    elseif(state==2) then monitor.setTextColor(inProgressC)
    elseif(state==3) then monitor.setTextColor(completedC)
    elseif(state==4) then monitor.setTextColor(cancelledC)
    elseif(state==5) then monitor.setTextColor(deprecatedC) end
  end

  monitor.setCursorPos(2,line)
--  if(state~=3) then
    monitor.write(string.format("%2d",line-3)..". "..text)
    writeState(state,line)
    line = line + 1
--  end
end

monitor.setBackgroundColor(colors.black)
monitor.setTextColor(colors.white)
monitor.setTextScale(0.5)
monitor.clear()

width,height = monitor.getSize()
position = (width/2) - 4

monitor.setCursorPos(position,1)
monitor.write("TO-DO items")
monitor.setCursorPos(position,2)
monitor.write("===========")

file = fs.open("todolist.txt","r")

todoentry = file.readLine()

while(todoentry) do
  local todostate = string.sub(todoentry,1,1)
  local todotext = string.sub(todoentry,3)
  wl(todostate,todotext)
  todoentry = file.readLine()
end

file.close()