# -*- coding: utf-8 -*-
import json
from django.http import HttpResponseRedirect, HttpResponse
from django.shortcuts import get_object_or_404
from django.views.generic import TemplateView, FormView
from django.db.models import Q
from django.utils import timezone
from accounts.models import User
from forms import ReplyForm, SendForm
from models import Message


class InboxView(TemplateView):
    """
    returns template with user messages
    """
    template_name = 'client/accounts/messages.html'

    def get_context_data(self, **kwargs):
        context = super(InboxView, self).get_context_data(**kwargs)
        senders = Message.objects.senders(self.request.user)
        context['senders'] = [{'sender': s, 'message': Message.objects.filter(recipient=self.request.user, sender=s)[0]}\
                              for s in senders]
        reply_form = ReplyForm()
        context['reply_form'] = reply_form
        return context


class MessageHistory(FormView):
    """
    returns message history with one user and form to reply to it
    """
    template_name = 'client/accounts/messages_history.html'
    form_class = ReplyForm
    success_url = ''

    def get_initial(self):
        return {'recipient':self.kwargs.get('user_id')}

    def get_context_data(self, **kwargs):
        now = timezone.now()
        context = super(MessageHistory, self).get_context_data(**kwargs)
        user = self.kwargs.get('user_id')
        messages = Message.objects.filter(
                                  Q(sender=self.request.user, recipient=user) |
                                  Q(sender=user, recipient=self.request.user)
                              )[:15]
        Message.objects.filter(sender=user, recipient=self.request.user).update(read_at=now)

        context['profile_messages'] = messages
        return context

    def form_invalid(self, form):
        user_id = self.kwargs.get('user_id')
        return HttpResponseRedirect('/profile/messages/history/'+user_id+'/')

    def form_valid(self, form):
        form.save(sender=self.request.user)
        user_id = self.kwargs.get('user_id')
        return HttpResponseRedirect('/profile/messages/history/'+user_id+'/')


"""
class ReplyView(FormView):
    form_class = ComposeForm
    template_name = 'message_reply.html'
    def form_valid(self, form):
        form.save(sender=self.request.user, parent_msg=self.parent)
        messages.info(self.request, _(u"Message successfully sent."))
        return HttpResponseRedirect('/profile/messages')

    def get_context_data(self, **kwargs):
        context = super(InboxView, self).get_context_data(**kwargs)

        parent = self.kwargs.get('self.message_id')
        parent_msg =get_object_or_404(Message, id=parent)# Message.objects.get(id=parent)
        context['parent_msg'] = parent_msg
        return context
"""


def message_reply(request, message_id):
    """
    reply to message
    """
    response = {'success': False}
    if request.POST:
        form = ReplyForm(request.POST)
        if form.is_valid():
            parent_msg = get_object_or_404(Message, id=message_id)
            form.save(sender=request.user, parent_msg=parent_msg)
            response['success'] = True
            return HttpResponse(json.dumps(response), content_type='application/json')
        else:
            return HttpResponse('error')
    return HttpResponse('not ajax')


def send_message(request, url):
    """
    send message to user with url=url
    """
    response = {'success': False}
    try:
        url = int(url)
        recipient = get_object_or_404(User, id=url)
    except ValueError:

        recipient = get_object_or_404(User, url=url)
    if request.POST:
        form = SendForm(request.POST)
        if form.is_valid():
            form.save(sender=request.user, recipient=recipient)
            response['success'] = True
            return HttpResponse(json.dumps(response), content_type='application/json')
        else:
            return HttpResponse('error')
    return HttpResponse('not ajax')