# ===========================================================================
# eXe
# Copyright 2004-2006, University of Auckland
#
# 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
# ===========================================================================

"""
PackageRedirectPage is the first screen the user loads.  It doesn't show
anything it just redirects the user to a new package.
"""

import logging
from exe.webui.renderable     import RenderableResource
from exe.xului.mainpage       import MainPage

log = logging.getLogger(__name__)


class PackageRedirectPage(RenderableResource):
    """
    PackageRedirectPage is the first screen the user loads.  It doesn't show
    anything it just redirects the user to a new package or loads an existing 
    package.
    """
    
    name = '/'

    def __init__(self, webServer):
        """
        Initialize
        """
        RenderableResource.__init__(self, None, None, webServer)
        self.webServer = webServer
        # See if all out main pages are not showing
        # This is a twisted timer
        self.stopping = None

    def getChild(self, name, request):
        """
        Get the child page for the name given.
        This is called if our ancestors can't find our child.
        This is probably because the url is in unicode
        """
        if name == '':
            return self
        else:
            result = self.children.get(unicode(name, 'utf8'))
            if result is not None:
                return result
            else:
                # This will just raise an error
                return RenderableResource.getChild(self, name, request)

    def bindNewPackage(self, package):
        """
        Binds 'package' to the appropriate url
        and creates a MainPage instance for it
        and a directory for the resource files

	    In the GTK version, this should actually
        redirect people to MainPage. Copy from
	    svn revision 1311 to re-enable gtk.
        """
        MainPage(self, package)


    def render_GET(self, request):
        """
        Create a new package and redirect the webrowser to the URL for it
        """
        log.debug("render_GET" + repr(request.args))
        # Create new package
        package = self.packageStore.createPackage()
        self.bindNewPackage(package)
        log.info("Created a new package name="+ package.name)
        # Tell the web browser to show it
        request.redirect(package.name.encode('utf8'))
        return ''