# Twisted, the Framework of Your Internet
# Copyright (C) 2001 Matthew W. Lefkowitz
# 
# This library is free software; you can redistribute it and/or
# modify it under the terms of version 2.1 of the GNU Lesser General Public
# License as published by the Free Software Foundation.
# 
# This library 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
# Lesser General Public License for more details.
# 
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

import time

#Twisted imports
from twisted.web import html, server, error, widgets
from twisted.cred import identity
from twisted.persisted import styles

#Sibling imports
import service

class AccountCreationWidget(widgets.Form, styles.Versioned):
    persistenceVersion = 1
    title = "Account Creation"
    formFields = [
        ['string','Username','username',''],
        ['password','Password','password',''],
        ]

    def __init__(self, service):
        self.service = service

    def upgradeToVersion1(self):
        #this object should get garbage collected..
        pass

    def process(self, write, request, submit, **args):
        if args.has_key("username"):
            u,p = request.args['username'][0], request.args['password'][0]
            app = self.service.application
            part = self.service.createPerspective(u)
            if part:
                ident = part.makeIdentity(p)
                write("Participant Added.")
            else:
                write("Duplicate.")


class ParticipantInfoWidget(widgets.Widget):
    def __init__(self, name, svc):
        self.name = name
        self.title = "Info for Participant %s" % name
        self.service = svc
        self.part = svc.perspectives[name]

    def display(self, request):
        return ['''
        Name: %s<br>
        Currently in groups: %s<br>
        Current status: %s<br>
        ''' % (self.part.name,
               map(lambda x: x.name, self.part.groups),
               service.statuses[self.part.status])]


class Page:
    "Backwards Compatibility."

class ParticipantListWidget(widgets.Gadget, widgets.Widget, styles.Versioned):
    persistenceVersion = 2
    def __init__(self, service):
        widgets.Gadget.__init__(self)
        self.service = service
        self.title = "Participant List"

    def upgradeToVersion1(self):
        pass

    def upgradeToVersion2(self):
        del self.page

    def display(self, request):
        """Get HTML for a directory of participants.
        """
        keys = self.service.perspectives.keys()
        keys.sort()
        return [html.linkList(map(lambda key, request=request:
                                  (key, key), keys))]

    def getWidget(self, name, request):
        """Get info for a particular participant.
        """
        if name in self.service.perspectives.keys():
            return ParticipantInfoWidget(name, self.service)
        else:
            return error.NoResource("That participant does not exist.")

class WordsGadget(widgets.Gadget, widgets.Widget, styles.Versioned):
    
    persistenceVersion = 2
    title = "Welcome to WebWords"
    
    def __init__(self, svc):
        widgets.Gadget.__init__(self)
        self.section = ""
        self.putWidget("create", AccountCreationWidget(svc))
        self.putWidget("users", ParticipantListWidget(svc))

    def upgradeToVersion1(self):
        #This object should get garbage collected...
        pass

    def upgradeToVersion2(self):
        del self.page

    def display(self, request):
        return [html.linkList([["create",
                                "Create an Account"],
                               ["users",
                                "View the list of Participants"]])]


class WebWordsAdminSite(styles.Versioned):
    
    persistenceVersion = 2

    def upgradeToVersion2(self):
        self.__class__ = server.Site
        if hasattr(self, 'service'):
            self.__init__(WordsGadget(self.service))
            del self.service

AccountCreation = AccountCreationWidget
ParticipantsDirectory = ParticipantListWidget
AdminDir = WordsGadget