from .models import *
from django.db.models import Q


def get_msgs_for_chat_w_users(user1, user2):

    msgs = Message.objects.filter(
        Q(sender=user1) | Q(receiver=user1),
        Q(sender=user2) | Q(receiver=user2),
        group=None
    ).order_by('-modifiedDT')
    return msgs

def get_chat_receivers_for_user(user):
    receivers = Message.objects.filter(
        Q(sender=user) | Q(receiver=user),
        group=None
    ).order_by('-modifiedDT')#.select_related('sender', 'receiver').values('sender', 'receiver').distinct()

    receivers_list = []

    receivers_list.extend((item.sender for item in receivers if item.sender != user))
    receivers_list.extend((item.receiver for item in receivers if item.receiver != user))

    return list(set(receivers_list))

def get_messages_for_ticket(ticket):
    return ticket.rel_messages_for_group.filter(enable=True).order_by('-modifiedDT')


def get_ticketsDict_for_staff(user):
    Dict = {
        'tickets_wo_manager': get_tickets_wo_manager(),
        'tickets_for_manager': get_tickets_for_manager(user),
    }
    return Dict

def get_tickets_wo_manager():

    tickets = MsgGroup.objects.filter(enable=True, manager=None)

    return tickets

def get_tickets_for_manager(user):

    tickets = MsgGroup.objects.filter(enable=True, manager=user)

    return tickets