""" Delicious Deskbar
A plugin for the Gnome deskbar applet that searches del.icio.us.
Stuart Langridge, http://www.kryogenix.org/

Licenced under the GNU GPL, version 2.0
"""


from deskbar.Utils import strip_html
from gettext import gettext as _

import urllib, os
import gnomevfs, gtk
import deskbar.Handler, deskbar
import xml.dom.minidom

DELICIOUS_URL = 'http://del.icio.us/rss/%s/%s'
MAX_QUERIES = 10
QUERY_DELAY = 1
USERNAME_FILE=os.path.expanduser('~/.gnome2/deskbar-applet/del.icio.us.username')

DELICIOUS_ICON = [
"16 16 5 1",
"       c None",
".      c #FFFFFF",
"+      c #0000FF",
"@      c #000000",
"#      c #DDDDDD",
"........++++++++",
"........++++++++",
"........++++++++",
"........++++++++",
"........++++++++",
"........++++++++",
"........++++++++",
"........++++++++",
"@@@@@@@@########",
"@@@@@@@@########",
"@@@@@@@@########",
"@@@@@@@@########",
"@@@@@@@@########",
"@@@@@@@@########",
"@@@@@@@@########",
"@@@@@@@@########"
]


def _on_more_information():
  # create a dialog to ask the question
  ask = gtk.Dialog(_("Setting Up Del.icio.us Search"),
                     None,
                     gtk.DIALOG_MODAL | gtk.DIALOG_DESTROY_WITH_PARENT,
                     (gtk.STOCK_CANCEL, gtk.RESPONSE_REJECT,
                     gtk.STOCK_OK, gtk.RESPONSE_ACCEPT))
  text = gtk.Entry()
  if os.path.exists(USERNAME_FILE):
    fp = open(USERNAME_FILE)
    text.set_text(fp.readline().strip())
    fp.close()
  ask.vbox.add(text)
  text.show()
  resp = ask.run()
  if resp == gtk.RESPONSE_ACCEPT:
    username = text.get_text()
    if not username:
      if os.path.exists(USERNAME_FILE):
        os.remove(USERNAME_FILE)
    else:
      if len(username) < 255: # be paranoid
        fp = open(USERNAME_FILE,'w')
        fp.write(username)
        fp.close()
  ask.destroy()

def _check_requirements(*args):
  if os.path.exists(USERNAME_FILE):
    fp = open(USERNAME_FILE)
    username = fp.readline().strip()
    fp.close()
  else:
    username = None
  if username:
    return (deskbar.Handler.HANDLER_IS_CONFIGURABLE, 
            _("Remove your username (%s) to search all of del.icio.us" % username),
            _on_more_information)
  else:
    return (deskbar.Handler.HANDLER_IS_CONFIGURABLE, 
            _("Enter your username to search your bookmarks"),
            _on_more_information)

HANDLERS = {
  "DeliciousHandler" : {
      "name": _("Del.icio.us Search"),
      "description": _("Search del.icio.us for a tag"),
      "requirements" : _check_requirements
  }
}
  

class DeliciousMatch(deskbar.Match.Match):
  def __init__(self, handler, name, url, **args):
    deskbar.Match.Match.__init__ (self, handler, name=name, **args)
    self.url = url

  def get_verb(self):
    return "%(name)s"

  def action(self, text=None):
    gnomevfs.url_show(self.url)

  def get_category(self):
    return "web"

  def get_hash(self, text=None):
    return self.url

class DeliciousHandler(deskbar.Handler.AsyncHandler):
  def __init__(self):
    deskbar.Handler.AsyncHandler.__init__(self, None)
    self._icon = gtk.gdk.pixbuf_new_from_xpm_data(DELICIOUS_ICON)
    self.server = None
    
  def query(self, qstring, defres):
    # Just to ensure we don't bork anything
    qmax = min (deskbar.DEFAULT_RESULTS_PER_HANDLER, MAX_QUERIES)

    # Delay before we query so we *don't* make four queries
    # "s", "sp", "spa", "spam".
    self.check_query_changed (timeout=QUERY_DELAY)
    
    if os.path.exists(USERNAME_FILE):
      fp = open(USERNAME_FILE)
      username = fp.readline().strip()
      fp.close()
    else:
      username = "tag"
    print 'Query del.icio.us for:', qstring, 'with', username
    stream = urllib.urlopen(DELICIOUS_URL % (username,qstring.replace(' ','+')))
    dom = xml.dom.minidom.parse(stream)
    stream.close()
    print 'Got del.icio.us answer for:', qstring
    
    self.check_query_changed ()  
    # The del.icio.us search might have taken a long time
    # better check if we're still valid
    matches = [
      DeliciousMatch(self,
        x.getElementsByTagName("title")[0].firstChild.nodeValue,
        x.getElementsByTagName("link")[0].firstChild.nodeValue) 
        for x in dom.getElementsByTagName("item")
    ]
    self.check_query_changed ()
    print "Returning del.icio.us answer for:", qstring
    return matches