--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libervia/frontends/quick_frontend/quick_contact_management.py	Fri Jun 02 14:12:38 2023 +0200
@@ -0,0 +1,104 @@
+#!/usr/bin/env python3
+
+
+# helper class for making a SAT frontend
+# Copyright (C) 2009-2021 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 libervia.backend.core.i18n import _
+from libervia.backend.core.log import getLogger
+
+log = getLogger(__name__)
+from libervia.frontends.tools.jid import JID
+
+
+class QuickContactManagement(object):
+    """This helper class manage the contacts and ease the use of nicknames and shortcuts"""
+
+    ### FIXME: is SàT a better place for all this stuff ??? ###
+
+    def __init__(self):
+        self.__contactlist = {}
+
+    def __contains__(self, entity):
+        return entity.bare in self.__contactlist
+
+    def clear(self):
+        """Clear all the contact list"""
+        self.__contactlist.clear()
+
+    def add(self, entity):
+        """Add contact to the list, update resources"""
+        if entity.bare not in self.__contactlist:
+            self.__contactlist[entity.bare] = {"resources": []}
+        if not entity.resource:
+            return
+        if entity.resource in self.__contactlist[entity.bare]["resources"]:
+            self.__contactlist[entity.bare]["resources"].remove(entity.resource)
+        self.__contactlist[entity.bare]["resources"].append(entity.resource)
+
+    def get_cont_from_group(self, group):
+        """Return all contacts which are in given group"""
+        result = []
+        for contact in self.__contactlist:
+            if "groups" in self.__contactlist[contact]:
+                if group in self.__contactlist[contact]["groups"]:
+                    result.append(JID(contact))
+        return result
+
+    def get_attr(self, entity, name):
+        """Return a specific attribute of contact, or all attributes
+        @param entity: jid of the contact
+        @param name: name of the attribute
+        @return: asked attribute"""
+        if entity.bare in self.__contactlist:
+            if name == "status":  # FIXME: for the moment, we only use the first status
+                if self.__contactlist[entity.bare]["statuses"]:
+                    return list(self.__contactlist[entity.bare]["statuses"].values())[0]
+            if name in self.__contactlist[entity.bare]:
+                return self.__contactlist[entity.bare][name]
+        else:
+            log.debug(_("Trying to get attribute for an unknown contact"))
+        return None
+
+    def is_connected(self, entity):
+        """Tell if the contact is online"""
+        return entity.bare in self.__contactlist
+
+    def remove(self, entity):
+        """remove resource. If no more resource is online or is no resource is specified, contact is deleted"""
+        try:
+            if entity.resource:
+                self.__contactlist[entity.bare]["resources"].remove(entity.resource)
+            if not entity.resource or not self.__contactlist[entity.bare]["resources"]:
+                # no more resource available: the contact seems really disconnected
+                del self.__contactlist[entity.bare]
+        except KeyError:
+            log.error(_("INTERNAL ERROR: Key log.error"))
+            raise
+
+    def update(self, entity, key, value):
+        """Update attribute of contact
+        @param entity: jid of the contact
+        @param key: name of the attribute
+        @param value: value of the attribute
+        """
+        if entity.bare in self.__contactlist:
+            self.__contactlist[entity.bare][key] = value
+        else:
+            log.debug(_("Trying to update an unknown contact: %s") % entity.bare)
+
+    def get_full(self, entity):
+        return entity.bare + "/" + self.__contactlist[entity.bare]["resources"][-1]