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

from city.models import City
from ckeditor.widgets import CKEditorWidget
from conference.models import Conference
from country.models import Country
from django import forms
from django.utils import translation
from django.utils.translation import ugettext_lazy as _
from expobanner.models import URL, Banner, BannerGroup, MainPage, Paid, Top
from exposition.models import Exposition
from theme.models import Tag, Theme


class UrlCreateForm(forms.ModelForm):
    verbose = u'Создать урл'

    class Meta:
        model = URL
        exclude = ['created_at', 'updated_at', 'sites']


class BannerCreateGroupForm(forms.ModelForm):
    verbose = u'Создать групу'

    class Meta:
        model = BannerGroup
        exclude = ['created_at', 'updated_at', 'speed']

class BannerGroupUpdateForm(BannerCreateGroupForm):
    verbose = u'Изменить групу'

    class Meta:
        model = BannerGroup
        exclude = ['created_at', 'updated_at', 'slug', 'speed']


class BannerCreateForm(forms.ModelForm):
    verbose = u'Создать банер'
    text = forms.CharField(label=u'Текст', required=False, widget=CKEditorWidget)
    class Meta:
        model = Banner
        exclude = ['created_at', 'updated_at', 'often', 'paid', 'stat_pswd', 'cookie', 'link']


class BannerLinkCreateForm(forms.ModelForm):
    verbose = u'Отслеживаемую ссылку'

    class Meta:
        model = Banner
        fields = ['public', 'alt', 'url']
        exclude = ['created_at', 'updated_at', 'often', 'paid', 'stat_pswd', 'cookie', 'link']

    def save(self, commit=True):
        banner = super(BannerLinkCreateForm, self).save(commit=False)
        if commit:
            banner.link =True
            banner.save()

        return banner



class ClientStatForm(forms.Form):
    stat_pswd = forms.CharField(label=u'Введите пароль:')

    def check_pass(self, obj):
        pswd = self.cleaned_data['stat_pswd']
        return obj.stat_pswd == pswd


class PaidCreateForm(forms.ModelForm):
    verbose = u'Создать проплаченую выставку'
    exposition = forms.CharField(label=u'Выставка', widget=forms.HiddenInput())
    tickets = forms.URLField(label=u'Линк на билеты')
    participation = forms.URLField(label=u'Линк на участие')
    official = forms.URLField(label=u'Линк на официальный сайт')

    class Meta:
        model = Paid
        fields = ['logo', 'organiser', 'public']

    def save(self, commit=True):
        paid = super(PaidCreateForm, self).save(commit=False)
        if commit:
            expo = self.cleaned_data['exposition']
            tickets = self.cleaned_data['tickets']
            tickets_link = Banner.objects.create_for_paid(expo, tickets, 'tickets')
            participation = self.cleaned_data['participation']
            participation_link = Banner.objects.create_for_paid(expo, participation, 'participation')
            official = self.cleaned_data['official']
            official_link = Banner.objects.create_for_paid(expo, official, 'official')
            catalog = expo.get_permanent_url()
            catalog_link = Banner.objects.create_for_paid(expo, catalog, 'catalog')


            paid.tickets = tickets_link
            paid.participation = participation_link
            paid.official = official_link
            paid.catalog = catalog_link
            paid.save()

            expo.paid_new = paid
            expo.save()
        return paid

    def clean_exposition(self):
        expo_id = self.cleaned_data['exposition']
        try:
            expo = Exposition.objects.get(id=expo_id)
        except Exposition.DoesNotExist:
            raise forms.ValidationError(u'Такой выставки не существует')
        return expo


class MainCreateForm(forms.ModelForm):
    verbose = u'Добавить выставку на главную'
    exposition = forms.CharField(label=u'Выставка', widget=forms.HiddenInput())

    class Meta:
        model = MainPage
        fields = ['position', 'public']

    def save(self, commit=True):
        main = super(MainCreateForm, self).save(commit=False)
        if commit:
            expo = self.cleaned_data['exposition']
            link = expo.get_permanent_url()
            link_b = Banner.objects.create_for_paid(expo, link, 'main_page_link')
            main.link = link_b
            main.save()

            expo.main = main
            expo.save()
        return main

    def clean_exposition(self):
        expo_id = self.cleaned_data['exposition']
        try:
            expo = Exposition.objects.get(id=expo_id)
        except Exposition.DoesNotExist:
            raise forms.ValidationError(u'Такой выставки не существует')
        return expo


class MainConfCreateForm(forms.ModelForm):
    verbose = u'Добавить конференцию на главную'
    conf = forms.CharField(label=u'Конференция', widget=forms.HiddenInput())

    class Meta:
        model = MainPage
        fields = ['position', 'public']

    def save(self, commit=True):
        main = super(MainConfCreateForm, self).save(commit=False)
        if commit:
            conf = self.cleaned_data['conf']
            link = conf.get_permanent_url()
            link_b = Banner.objects.create_for_paid(conf, link, 'main_page_link')
            main.link = link_b
            main.save()

            conf.main = main
            conf.save()
        return main

    def clean_conf(self):
        conf_id = self.cleaned_data['conf']
        try:
            conf = Conference.objects.get(id=conf_id)
        except Conference.DoesNotExist:
            raise forms.ValidationError(u'Такой конференции не существует')
        return conf


class PaidUpdateForm(forms.ModelForm):
    tickets = forms.URLField(label=u'Линк на билеты')
    participation = forms.URLField(label=u'Линк на участие')
    official = forms.URLField(label=u'Линк на официальный сайт')

    class Meta:
        model = Paid
        fields = ['logo', 'organiser', 'public']

    def save(self, commit=True):
        paid = super(PaidUpdateForm, self).save(commit=False)
        if commit:
            tickets = self.cleaned_data['tickets']
            b_tickets = paid.tickets
            if tickets != b_tickets.url:
                b_tickets.url = tickets
                b_tickets.save()

            participation = self.cleaned_data['participation']
            b_participation = paid.participation
            if participation != b_participation.url:
                b_participation.url = participation
                b_participation.save()

            official = self.cleaned_data['official']
            b_official = paid.official
            if official != b_official.url:
                b_official.url = official
                b_official.save()

            paid.save()

        return paid


class MainUpdateForm(forms.ModelForm):
    class Meta:
        model = MainPage
        fields = ['position', 'public']


class TopCreateForm(forms.ModelForm):
    verbose = u'Создать выставку в топе'
    exposition = forms.CharField(label=u'Выставка', widget=forms.HiddenInput())
    country = forms.MultipleChoiceField(label=u'Страна', choices=[('', ' ')] + [(c.id, c.name) for c in Country.objects.all()], required=False)
    theme = forms.MultipleChoiceField(label=u'Тематика', required=False,
                                      choices=[('', ' ')] + [(item.id, item.name) for item in Theme.objects.language().all()])
    #excluded_cities = forms.CharField(label=u'Город', widget=forms.HiddenInput(), required=False)
    #excluded_tags = forms.CharField(label=u'Тег', widget=forms.HiddenInput(), required=False)
    class Meta:
        model = Top
        fields = ['catalog', 'position', 'theme', 'country', 'fr', 'to']

    def save(self, commit=True):
        top = super(TopCreateForm, self).save(commit=False)
        # Prepare a 'save_m2m' method for the form,
        old_save_m2m = self.save_m2m

        def save_m2m():
           old_save_m2m()
           # This is where we actually link the pizza with toppings
           top.theme.clear()
           for theme in self.cleaned_data['theme']:
               top.theme.add(theme)
           top.country.clear()
           for country in self.cleaned_data['country']:
               top.country.add(country)

        self.save_m2m = save_m2m

        if commit:
            expo = self.cleaned_data['exposition']
            link = expo.get_permanent_url()
            link_b = Banner.objects.create_for_paid(expo, link, 'top_link')
            top.link = link_b
            top.save()
            self.save_m2m()
            expo.top = top
            expo.save()

        return top

    def clean_theme(self):
        theme_ids = self.cleaned_data['theme']
        if theme_ids:
            return Theme.objects.filter(id__in=theme_ids)
        return Theme.objects.none()

    def clean_country(self):
        country_ids = self.cleaned_data['country']
        if country_ids:
            return Country.objects.filter(id__in=country_ids)
        return Country.objects.none()

    def clean_exposition(self):
        expo_id = self.cleaned_data['exposition']
        try:
            expo = Exposition.objects.get(id=expo_id)
        except Exposition.DoesNotExist:
            raise forms.ValidationError(u'Такой выставки не существует')
        return expo


class FieldsetMixin(object):
    def fieldsets(self, fieldsets=None):
        meta = getattr(self, 'Meta', None) or getattr(self, '_meta', None)
        _fieldsets = fieldsets or meta.fieldsets
        if _fieldsets:
            for fs in _fieldsets:
                yield {
                    'title': fs.get('title'),
                    'class': fs.get('class'),
                    'fields': (self[field] for field in fs.get('fields')) if fs.get('fields') else None,
                    'fieldsets': (fieldset for fieldset in self.fieldsets(fieldsets=fs.get('fieldsets'))) if fs.get('fieldsets') else None,
                }


class TopUpdateForm(forms.ModelForm, FieldsetMixin):
    cities = forms.CharField(label=u'Город', widget=forms.HiddenInput() ,required=False)

    verbose = u'Изменить выставку'
    class Meta:
        model = Top
        fields = ['catalog', 'position', 'theme', 'country', 'fr', 'to', 'months', 'cities']
        fieldsets = [
            {'title': '',
             'class': '',
             'fields': ['catalog', 'position', 'theme', 'country', 'fr', 'to']},
            {'title': _(u'Топ города'),
             'class': '',
             'fields': ['cities', 'months']}
        ]
    def __init__(self, *args, **kwargs):
        super(TopUpdateForm, self).__init__(*args, **kwargs)
        instance = getattr(self, 'instance', None)
        if instance:
            lang = translation.get_language()
            self.fields['cities'].widget.attrs['data-init-text'] =\
                json.dumps([{'id': item.id, 'text': item.name} for item in list(instance.cities.filter(translations__language_code=lang))])

    def clean_cities(self):
        cities = self.cleaned_data.get('cities')
        if cities:
            res = []
            for id in cities.split(','):
                try:
                    res.append(int(id))
                except ValueError:
                    continue
            return City.objects.filter(id__in=res)
        else:
            return City.objects.none()

    def save(self, commit=True):
        top = super(TopUpdateForm, self).save(commit=False)
        # Prepare a 'save_m2m' method for the form,
        old_save_m2m = self.save_m2m

        def save_m2m():
            old_save_m2m()
            # This is where we actually link the pizza with toppings
            top.theme.clear()
            for theme in self.cleaned_data['theme']:
                top.theme.add(theme)
            top.country.clear()
            for country in self.cleaned_data['country']:
                top.country.add(country)
            top.cities.clear()
            for city in self.cleaned_data['cities']:
                top.cities.add(city)
        self.save_m2m = save_m2m

        if commit:

            top.save()
            self.save_m2m()
        return top