# -*- coding: utf-8 -*-
from django.shortcuts import  render_to_response
from django.http import HttpResponseRedirect, HttpResponse
from django.core.context_processors import csrf
from django.conf import settings
from django.contrib.contenttypes.models import ContentType
from django.contrib.auth.decorators import login_required
#models and forms
from models import Organiser
from city.models import City
from theme.models import Tag
from forms import OrganiserForm
from file.models import FileModel, TmpFile
from file.forms import FileModelForm
#python
import random


def organiser_add(request):
    """
    Return form of organiser and post it on the server.
    If form is posted redirect on the page of all organiser.
    """
    #if form would be not valid key must be same
    if request.POST.get('key'):
        key = request.POST['key']
    else:
        key = random.getrandbits(128)

    file_form = FileModelForm(initial={'key': key})

    if request.POST:
        form = OrganiserForm(request.POST)
        #set choices filled by ajax
        form.fields['tag'].choices = [(item.id, item.name) for item in Tag.objects.all()]
        form.fields['city'].choices = [(item.id, item.name) for item in City.objects.filter(country=request.POST['country'])]

        if form.is_valid():
            form.save()
            return HttpResponseRedirect('/organiser/all/')
    else:
        form = OrganiserForm(initial={'key':key})

    args = {}
    args.update(csrf(request))

    args['form'] = form
    args['languages'] = settings.LANGUAGES
    args['file_form'] = file_form
    args['files'] = TmpFile.objects.filter(key=key)

    return render_to_response('organiser_add.html', args)

def organiser_change(request, organiser_id):
    """
    Return form and fill it with existing Organiser object data.

    If form is posted redirect on the page of all organisers.
    """
    try:
    #check if organiser_id exists else redirect to the list of organisers
        organiser = Organiser.objects.get(id=organiser_id)
        file_form = FileModelForm(initial={'model': 'organiser.Organiser'})
    except:
        return HttpResponseRedirect('/organiser/all/')

    if request.POST:
        form = OrganiserForm(request.POST)
        #set choices filled by ajax
        form.fields['tag'].choices = [(item.id, item.name) for item in Tag.objects.all()]
        form.fields['city'].choices = [(item.id, item.name) for item in City.objects.filter(country=request.POST['country'])]

        if form.is_valid():
            form.save(id=organiser_id)
            return HttpResponseRedirect('/organiser/all/')
    else:
        #fill form with data from database
        data = {'staff_number':organiser.staff_number, 'address': organiser.address,
                'events_number':organiser.events_number, 'phone':organiser.phone,
                'fax':organiser.fax, 'web_page':organiser.web_page, 'own_place': organiser.own_place,
                'email':organiser.email, 'social':organiser.social, 'foundation': organiser.foundation}

        if organiser.country:
            data['country'] = organiser.country.id

        if organiser.city:
            data['city'] = organiser.city.id

        data['theme'] = [item.id for item in organiser.theme.all()]
        data['tag'] = [item.id for item in organiser.tag.all()]
        data['place'] = [item.id for item in organiser.place.all()]
        #data from translated fields
        for code, name in settings.LANGUAGES:
            obj = Organiser._meta.translations_model.objects.get(language_code = code,master__id=organiser_id) #access to translated fields
            data['name_%s' % code] = obj.name
            data['description_%s' % code] = obj.description
            data['specialization_%s' % code] = obj.specialization
            data['address_inf_%s' % code] = obj.address_inf
            data['representation_%s' % code] = obj.representation
            data['title_%s' % code] = obj.title
            data['keywords_%s' % code] = obj.keywords
            data['descriptions_%s' % code] = obj.descriptions
        #fill form
        form = OrganiserForm(data)
        #set choices filled by ajax
        form.fields['city'].choices = [(item.id, item.name) for item in City.objects.filter(country=data['country'])]
        form.fields['tag'].choices = [(item.id, item.name) for item in Tag.objects.filter(theme__in=data['theme'])]

    args = {}
    args.update(csrf(request))

    args['form'] = form
    args['languages'] = settings.LANGUAGES
    args['file_form'] = file_form

    #get list of files which connected with specific model object
    args['files'] = FileModel.objects.filter(content_type=ContentType.objects.get_for_model(organiser),
                                             object_id=getattr(organiser, 'id'))
    args['obj_id'] = organiser_id

    return render_to_response('organiser_add.html', args)


def organiser_all(request):
    """
    Return list of all organisers
    """
    organisers = Organiser.objects.all()
    return render_to_response('organiser_all.html', {'organisers':organisers})