#!/usr/bin/python
# -*- coding: utf-8 -*-

"""
helper class for making a SAT frontend
Copyright (C) 2009, 2010, 2011, 2012  Jérôme Poisson (goffi@goffi.org)

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 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 Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
"""

from logging import debug


class QuickContactList():
    """This class manage the visual representation of contacts"""

    def __init__(self):
        debug(_("Contact List init"))
        self._cache = {}
        self.specials={}

    def update_jid(self, jid):
        """Update the jid in the list when something changed"""
        raise NotImplementedError

    def getCache(self, jid, name):
        try:
            jid_cache = self._cache[jid.short]
            if name == 'status': #XXX: we get the first status for 'status' key
                return jid_cache['statuses'].get('default','')
            return jid_cache[name]
        except (KeyError, IndexError):
            return None

    def setCache(self, jid, name, value):
        jid_cache = self._cache.setdefault(jid.short, {})
        jid_cache[name] = value

    def __contains__(self, jid):
        raise NotImplementedError
    
    def clearContacts(self, jid):
        """Clear all the contact list"""
        self.specials.clear()
    
    def replace(self, jid, groups=None, attributes=None):
        """add a contact to the list if doesn't exist, else update it"""
        if attributes and 'name' in attributes:
            self.setCache(jid, 'name', attributes['name'])
    
    def remove(self, jid):
        """remove a contact from the list"""
        try:
            del self.specials[jid.short]
        except KeyError:
            pass

    def add(self, jid, param_groups=None):
        """add a contact to the list"""
        raise NotImplementedError

    def getSpecial(self, jid):
        """Return special type of jid, or None if it's not special"""
        return self.specials.get(jid.short)

    def setSpecial(self, jid, _type):
        """Set entity as a special
        @param jid: jid of the entity
        @param _type: special type (e.g.: "MUC")
        """
        self.specials[jid.short] = _type

    def updatePresence(self, jid, show, priority, statuses):
        """Update entity's presence status
        @param jid: entity to update's jid
        @param show: availability
        @parap priority: resource's priority
        @param statuses: dict of statuses"""
        self.setCache(jid, 'show', show)
        self.setCache(jid, 'prority', priority)
        self.setCache(jid, 'statuses', statuses)
        self.update_jid(jid)