OpenGlasses Push Notification Library

local os = require("os")
local component = require("component")
local gc = require("ogcolor")
local gls = component.glasses

local function wrap_string(str, wrapLength)
  local lines = {}

  while #str > 0 do
    local lastSpaceIndex

    -- Only check substrings longer than the wrap length
    if #str > wrapLength then
      -- Check for first space so words longer than `wrapLength` don't break.
      lastSpaceIndex = str:sub(1, wrapLength):find'%s%S*$' or str:find'%s'
    end

    table.insert(lines, str:sub(1, lastSpaceIndex))

    if not lastSpaceIndex then break end

    str = str:sub(lastSpaceIndex + 1)
  end
  return lines
end
local ognotify = {}

--Send Notifications
function  ognotify.send(title,desc,timeout,bcolor,balpha,tcolor,talpha,dcolor,dalpha)

    local description = wrap_string(desc,35) -- 35 is approx. max num of characters before text protrudes from box
    --Background Rectangle
    local rect = gls.addRect()
    rect.setColor(table.unpack(bcolor))
    rect.setPosition(750,10)
    rect.setSize(25+(10 * #description),200)
    rect.setAlpha(balpha)

    --Title text
    local titleWidget = gls.addTextLabel()
    titleWidget.setText(title)
    titleWidget.setColor(table.unpack(tcolor))
    titleWidget.setPosition(690,15)
    titleWidget.setScale(1.1)
    titleWidget.setAlpha(talpha)

    --Description text
    local descWidget = {}
    local yPos = 30
    for i in ipairs(description) do
        --table.insert(descWidget,)
        descWidget[i] = gls.addTextLabel()
        descWidget[i].setScale(1.0)
        descWidget[i].setColor(table.unpack(dcolor))
        descWidget[i].setAlpha(dalpha)
        descWidget[i].setPosition(760,yPos)
        descWidget[i].setText(description[i])
        yPos = yPos + 10
    end

    os.sleep(timeout)

    --Clear notification
    gls.removeObject(rect.getID())
    gls.removeObject(titleWidget.getID())
    for i in ipairs(descWidget) do
        gls.removeObject(descWidget[i].getID())
    end
    return True
end

return ognotify