#!/usr/bin/env @PYTHON@
# -*-python-*-
# $Id$

# This file is part of avahi.
#
# avahi is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
#
# avahi is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
# License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with avahi; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
# USA.

import os
import gtk
import gobject

import avahi, dbus, gobject, sys
from avahi.SimpleGladeApp import SimpleGladeApp

try:
    import dbus.glib
except ImportError, e:
    pass

service_type_browsers = {}
service_browsers = {}


glade_dir = "@prefix@/share/@PACKAGE@/interfaces"

class Main_window(SimpleGladeApp):
    def __init__(self, path="avahi-discover.glade", root="main_window", domain=None, **kwargs):
        path = os.path.join(glade_dir, path)
        SimpleGladeApp.__init__(self, path, root, domain, **kwargs)

    def on_tree_view_cursor_changed(self, widget, *args):
        (model, iter) = widget.get_selection().get_selected()
        (name,interface,protocol,type,domain) = self.treemodel.get(iter,0,1,2,3,4)
        if type == None:
            self.info_label.set_markup("<i>No service currently selected.</i>")
            return
        #Asynchronous resolving
        self.server.ResolveService( int(interface), int(protocol), name, type, domain, avahi.PROTO_UNSPEC, reply_handler=self.service_resolved, error_handler=self.print_error)


    def service_resolved(self, interface, protocol, name, type, domain, host, aprotocol, address, port, txt):
        print "Service data for service '%s' of type '%s' in domain '%s' on %i.%i:" % (name, type, domain, interface, protocol)
        print "\tHost %s (%s), port %i, TXT data: %s" % (host, address, port, str(txt))
        self.update_label(interface, protocol, name, type, domain, host, aprotocol, address, port, str(txt))
        
    def print_error(err):
        print "Error:", str(err)
            
    def new_service(self, interface, protocol, name, type, domain):
        print "Found service '%s' of type '%s' in domain '%s' on %i.%i." % (name, type, domain, interface, protocol)
        if self.service_type.has_key(type) == False:
            self.service_type[type] = self.insert_row(self.treemodel,None,type, interface,None,None,None)
        treeiter = self.insert_row(self.treemodel,self.service_type[type],name, interface,protocol,type,domain)
        self.services_browsed[(interface, protocol, name, type, domain)] = treeiter


    def remove_service(self, interface, protocol, name, type, domain):
        print "Service '%s' of type '%s' in domain '%s' on %i.%i disappeared." % (name, type, domain, interface, protocol)
        treeiter=self.services_browsed[(interface, protocol, name, type, domain)]
        parent = self.treemodel.iter_parent(treeiter)
        self.treemodel.remove(treeiter)
        del self.services_browsed[(interface, protocol, name, type, domain)]
        if self.treemodel.iter_has_child(parent) == False:
            self.treemodel.remove(parent)
            del self.service_type[type]
 
    def new_service_type(self, interface, protocol, type, domain):
        global service_browsers

        # Are we already browsing this domain for this type? 
        if service_browsers.has_key((interface, protocol, type, domain)):
            return
        
        print "Browsing for services of type '%s' in domain '%s' on %i.%i ..." % (type, domain, interface, protocol)
        
        b = dbus.Interface(self.bus.get_object(avahi.DBUS_NAME, self.server.ServiceBrowserNew(interface, protocol, type, domain)),  avahi.DBUS_INTERFACE_SERVICE_BROWSER)
        b.connect_to_signal('ItemNew', self.new_service)
        b.connect_to_signal('ItemRemove', self.remove_service)

        service_browsers[(interface, protocol, type, domain)] = b

    def browse_domain(self, interface, protocol, domain):
        global service_type_browsers

        # Are we already browsing this domain?
        if service_type_browsers.has_key((interface, protocol, domain)):
            return
            
        print "Browsing domain '%s' on %i.%i ..." % (domain, interface, protocol)
        
        b = dbus.Interface(self.bus.get_object(avahi.DBUS_NAME, self.server.ServiceTypeBrowserNew(interface, protocol, domain)),  avahi.DBUS_INTERFACE_SERVICE_TYPE_BROWSER)
        b.connect_to_signal('ItemNew', self.new_service_type)

        service_type_browsers[(interface, protocol, domain)] = b

    def new_domain(self,interface, protocol, domain):

        # We browse for .local anyway...
        if domain != "local":
            browse_domain(interface, protocol, domain)

    def update_label(self,interface, protocol, name, type, domain, host, aprotocol, address, port, txt):
        if protocol == avahi.PROTO_INET:
            protocol = "IPv4"
        if protocol == avahi.PROTO_INET6:
            protocol = "IPv6"
        infos = "<b>Service Type:</b> %s\n<b>Service Name:</b> %s\n<b>Domain Name:</b> %s\n<b>Interface:</b>#%i %s\n<b>Address:</b> %s/%s:%i\n<b>TXT Data:</b> %s" % (type, name, domain, interface, protocol, host, address, port, str(txt))
        self.info_label.set_markup(infos)

    def insert_row(self, model,parent,
                   name, interface,protocol,type,domain):
        myiter=model.insert_after(parent,None)
        model.set(myiter,0,name,1,interface,2,protocol,3,type,4,domain)
        return myiter
    
    def new(self):
        print "A new main_window has been created"
        self.treemodel=gtk.TreeStore(gobject.TYPE_STRING, gobject.TYPE_STRING, gobject.TYPE_STRING, gobject.TYPE_STRING, gobject.TYPE_STRING)
        self.tree_view.set_model(self.treemodel)

        #creating the columns headers
        self.tree_view.set_headers_visible(True)
        renderer=gtk.CellRendererText()
        column=gtk.TreeViewColumn("Name",renderer, text=0)
        column.set_resizable(True)
        column.set_sizing("GTK_TREE_VIEW_COLUMN_GROW_ONLY");
        column.set_expand(True);
        self.tree_view.append_column(column)
        renderer=gtk.CellRendererText()
        column=gtk.TreeViewColumn("Interface",renderer,
                                  text=1)
        column.set_resizable(True)
        self.tree_view.append_column(column)
        
        # testing with fake data
        self.service_type = {}
        self.services_browsed = {}
        
        model=self.treemodel

        domain = None

        self.bus = dbus.SystemBus()
        self.server = dbus.Interface(self.bus.get_object(avahi.DBUS_NAME, avahi.DBUS_PATH_SERVER), avahi.DBUS_INTERFACE_SERVER)

        if domain is None:
            # Explicitly browse .local
            self.browse_domain(avahi.IF_UNSPEC, avahi.PROTO_UNSPEC, "local")

            # Browse for other browsable domains
            db = dbus.Interface(self.bus.get_object(avahi.DBUS_NAME, self.server.DomainBrowserNew(avahi.IF_UNSPEC, avahi.PROTO_UNSPEC, "", avahi.DOMAIN_BROWSER_BROWSE)), avahi.DBUS_INTERFACE_DOMAIN_BROWSER)
            db.connect_to_signal('ItemNew', self.new_domain)

        else:
            # Just browse the domain the user wants us to browse
            self.browse_domain(avahi.IF_UNSPEC, avahi.PROTO_UNSPEC, domain)


        
def main():
    main_window = Main_window()

    main_window.run()
    
if __name__ == "__main__":
    main()