import gi

try:
  gi.require_version('Notify', '0.7')  # gir1.2-notify-0.7
  from gi.repository import Notify
except:
  Notify = None


class Notification():

  notify = None
  
  def __init__(self, webview):
    self.webview = webview

    if Notify:
      Notify.init(Notify.get_app_name() or 'webapp')
      self.notify = Notify.Notification()


  def create(self, title, summary, icon, progress = 0, urgency = 0, callback = None):

    if not self.notify:
      raise ImportError('Notify module not found. Need to install gir1.2-notify-0.7 if you use debian.')
      return

    self.notify.clear_actions()
    self.notify.clear_hints()

    self.notify.update(title, summary, icon)

    if progress:
      self.notify.set_hint('value', progress)
    
    self.notify.set_urgency(urgency)

    if callback:
      self.notify.add_action("click", "click", self.action_callback, callback)
    
    self.notify.show()


  def action_callback(self, instance, action, callback):
    if callback:
      self.webview.call_js(callback)
    instance.close()


def create_notify():

  def wrapper(app, extra = None):
    Notification(app)

  return wrapper