# Copyright 2009 Simon Schampijer
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

"""HelloWorld Activity: A case study for developing an activity."""

import gtk
import os
import sys
import logging
import socket
from time import sleep

from gettext import gettext as _
#from multiprocessing import Process

from sugar.activity import activity
from sugar.graphics.toolbarbox import ToolbarBox
from sugar.activity.widgets import ActivityButton
from sugar.activity.widgets import ActivityToolbox
from sugar.activity.widgets import TitleEntry
from sugar.activity.widgets import StopButton
from sugar.activity.widgets import ShareButton
from sugar.activity.widgets import KeepButton
from sugar.activity.widgets import ToolButton
from about import AboutButton

try:
    import webkit
except ImportError:
    try:
        import webkit_local #from Agubrowser!
    except ImportError:
        print "You need webkit to use WebSDK."
        sys.exit(0) 
from inspector import Inspector

def PickUnusedPort():
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.bind(('localhost', 0))
    addr, port = s.getsockname()
    s.close()
    return port

class HelloWorldActivity(activity.Activity):
    """HelloWorldActivity class as specified in activity.info"""

    def __init__(self, handle):
        """Set up the HelloWorld activity."""
        activity.Activity.__init__(self, handle)

        # we do not have collaboration features
        # make the share option insensitive
        self.max_participants = 1
        self.port = PickUnusedPort()

        #Potentially this could be a subprocess, need to test more
        #self.serverpid = Process(target=self.server)
        #self.serverpid.start()
        #self.serverpid.join()

        self.serverpid = os.fork()
        if self.serverpid==0:
            self.server()
            print "Server quit. Exiting."
            sys.exit(0)


        # toolbar with the new toolbar redesign
        toolbar_box = ToolbarBox()

        activity_button = ActivityButton(self)
        toolbar_box.toolbar.insert(activity_button, 0)
        activity_button.show()

        title_entry = TitleEntry(self)
        toolbar_box.toolbar.insert(title_entry, -1)
        title_entry.show()

        share_button = ShareButton(self)
        toolbar_box.toolbar.insert(share_button, -1)
        share_button.show()

        keep_button = KeepButton(self)
        toolbar_box.toolbar.insert(keep_button, -1)
        keep_button.show()
        
        separator = gtk.SeparatorToolItem()
        separator.props.draw = False
        separator.set_expand(True)
        toolbar_box.toolbar.insert(separator, -1)
        separator.show()

        debug_button = ToolButton("activity-debug")
        toolbar_box.toolbar.insert(debug_button, -1)
        debug_button.connect('clicked', self.__debug_button_cb)
        debug_button.show()

        about_button = AboutButton(self)
        toolbar_box.toolbar.insert(about_button, -1)
        about_button.show()

        stop_button = StopButton(self)
        toolbar_box.toolbar.insert(stop_button, -1)
        stop_button.show()

        self.set_toolbar_box(toolbar_box)
        toolbar_box.show()

        # label with the text, make the string translatable
        label = gtk.Label(_("Hello World!"))

        self.web_view = webkit.WebView()
        sleep(1) # TODO implement throbber and callback
        self.web_view.open("http://localhost:%s/www/index.html" % self.port)
        
        settings = self.web_view.get_settings()
        settings.set_property("enable-developer-extras", True)
        self.inspector = Inspector(self.web_view.get_web_inspector())
        self.inspector.set_title("WebSDK Inspector")

        self.set_canvas(self.web_view)
        self.web_view.show()

    def __debug_button_cb(self, widget):
        self.inspector.emit('inspect-web-view')
        self.inspector.show()
        return True

    def can_close(self):
        #self.serverpid.terminate()
        os.kill(self.serverpid, 15)
        return True

    def server(self):
        import appservice 
        appservice.start(self.port)