# -*- coding: utf-8 -*-
import datetime
import json

from article.models import Article
from city.models import City
from django.conf import settings
from django.contrib.contenttypes.models import ContentType
from django.core.context_processors import csrf
from django.db.models.loading import get_model
from django.http import Http404, HttpResponse, HttpResponseRedirect
from django.shortcuts import render_to_response
from django.views.generic import DeleteView, TemplateView

from exposition.forms import StatisticForm, TimeTableForm
from exposition.models import Exposition, Statistic, TimeTable, TmpTimeTable
from file.forms import FileForm, FileModelForm, PhotoForm
from file.models import FileModel, Photo, TmpFile
from functions import datetime_handler
from theme.models import Tag


class AdminIndex(TemplateView):
    template_name = 'c_admin/base.html'


def ajax_city(request):
    """
    returns html <option> tags filled with cities filtered by country value from request
    """
    objects = City.objects.language().filter(country=request.GET['id']).order_by('name')
    return render_to_response('select.html', {'objects': objects})

def ajax_tag(request):
    """

    return array of tags (id, name) filtered by theme values from request

    """
    if request.GET:
        ids = request.GET.get('id')
        if ids:
            #get id values in list
            data = ids.replace('theme=', '').split('&')
            #generate list of tags
            tags = ['[%d, "%s"]'%(int(item.id), item.name) for item in Tag.objects.language().filter(theme__in=data).order_by('name')]
            return HttpResponse('[%s]'%', '.join(tags), content_type='application/json')
        else:
            #request empty - send empty array
            return HttpResponse('[]', content_type='application/json')


def get_news(request):
    """

    return array of tags (id, name) filtered by theme values from request

    """
    term = request.GET['term'].capitalize()
    if not term:
        qs = Article.objects.news()[:50]
    else:
        qs = Article.objects.news().filter(translations__main_title__contains=term)
    result = [{'id': item.id, 'label': item.main_title} for item in qs]

    return HttpResponse(json.dumps(result), content_type='application/json')


'''
def ajax_post_file(request, obj_id=None):
    """
    Takes file and file data and save it
    If obj_id = None creates TmpFile

    Returns 'file_list.html' template with existing files if id != None.
    N/A file_list.html' template with Tmp files filtered by key
    """
    if request.POST:
        file_form = FileModelForm(request.POST, request.FILES)
        if file_form.is_valid():
            #if obj_id is not exist create TMPfile objects else FileModel objects
            if obj_id != None:
                #takes data from hidden input "model" and initial Model
                Model = get_model(request.POST['model'].split('.')[0], request.POST['model'].split('.')[1])
                #initial model object
                obj = Model.objects.get(id=obj_id)
                file = file_form.save(request.FILES, obj)

                files = FileModel.objects.filter(content_type=ContentType.objects.get_for_model(obj),object_id=getattr(obj, 'id'))
            else:
                file_form.save(request.FILES)
                files = TmpFile.objects.filter(key=request.POST['key'])

            return render_to_response('file_list.html', {'files' : files})

    args = {}

    args['languages'] = settings.LANGUAGES
    args['file_form'] = file_form
    return render_to_response('ajax_error_form.html', args)
'''


def ajax_post_file(request, obj_id=None):
    """
    Takes file and file data and save it

    Returns 'file_list.html' template with existing files if id != None.

    """
    if request.POST:
        if not obj_id:
            raise Http404
        file_form = FileForm(request.POST, request.FILES)
        if file_form.is_valid():
            #takes data from hidden input "model" and initial Model
            Model = get_model(request.POST['model'].split('.')[0], request.POST['model'].split('.')[1])
            #initial model object
            obj = Model.objects.get(id=obj_id)
            file = file_form.save(request.FILES, obj)

            files = FileModel.objects.filter(content_type=ContentType.objects.get_for_model(obj),object_id=getattr(obj, 'id'))

            return render_to_response('file_list.html', {'files' : files})
        else:
            args = {}

            args['languages'] = settings.LANGUAGES
            args['file_form'] = file_form
            args['obj_id'] = obj_id
            args.update(csrf(request))
            return render_to_response('ajax_error_form.html', args)
    else:
        raise Http404


def ajax_post_photo(request, obj_id=None):
    if request.POST:
        photo_form = PhotoForm(request.POST, request.FILES)
        if photo_form.is_valid():

            if obj_id != None:
                Model = get_model(request.POST['model'].split('.')[0], request.POST['model'].split('.')[1])
                obj = Model.objects.get(id=obj_id)
                photo = photo_form.save(request.FILES, obj)
                photos = Photo.objects.filter(content_type=ContentType.objects.get_for_model(obj),object_id=getattr(obj, 'id'))
            else:
                photo_form.save(request.FILES)
                photos = TmpFile.objects.filter(key=request.POST['key'], purpose='photo')
            #return HttpResponse('123')
            return render_to_response('photo_list.html', {'photos': photos})

    args = {}

    args['languages'] = settings.LANGUAGES
    args['file_form'] = photo_form
    return render_to_response('ajax_error_form.html', args)


def ajax_post_timetable(request, obj_id=None):
    if request.GET:
        form = TimeTableForm(request.GET)
        if form.is_valid():
            if obj_id:
                exp = Exposition.objects.safe_get(id=obj_id)
                form.save(exp)
                objects = TimeTable.objects.filter(exposition=exp)
            else:
                form.save()
                objects = TmpTimeTable.objects.filter(key=request.GET.get('key'))

            return render_to_response('timetable_list.html', {'objects': objects})

        else:
            return HttpResponse(json.dumps(form.errors), content_type='application/json')

    else:

        return HttpResponse('error')


def ajax_post_stat(request, obj_id=None):
    response = {'success': False}
    if request.GET:
        form = StatisticForm(request.GET)
        if form.is_valid():

            exp = Exposition.objects.safe_get(id=obj_id)
            if exp:
                form.save(exp)
                response['success'] = True
        else:
            response.update({'errors': form.errors})

    return HttpResponse(json.dumps(response), content_type='application/json')


def ajax_delete_stat(request, id):
    redirect_to = request.META.get('HTTP_REFERER')


    if id:
        try:
            Statistic.objects.get(id=id).delete()
        except Statistic.DoesNotExist:
            pass


    return HttpResponseRedirect(redirect_to)


def ajax_delete_timetable(request):
    if request.GET:
        id = request.GET.get('id')
        if id:
            TimeTable.objects.get(id=id).delete()
            data = {'id': id}
        return HttpResponse(json.dumps(data), content_type='application/json')

    else:
        return HttpResponse('error')


def ajax_delete_file(request):
    """
    delete file
    """
    if request.GET:
        file = FileModel.objects.get(id = request.GET['id'])
        file.delete()
        return HttpResponse('success')
    else:
        return HttpResponse('error')