# -*- coding: utf-8 -*-
from django import forms
from models import Tag, Theme

from bitfield.types import BitHandler
from bitfield import BitField
from bitfield.forms import BitFieldCheckboxSelectMultiple, BitFormField

from django.conf import settings
from ckeditor.widgets import CKEditorWidget
from functions.translate import fill_trans_fields, populate, ZERO_LANGUAGE, populate_all, fill_trans_fields_all




class ThemeForm(forms.Form):
    types = forms.MultipleChoiceField(label='Тип', choices=Theme.FLAGS, widget=forms.CheckboxSelectMultiple())#initial=[item for item, name in Theme.FLAGS]

    def __init__(self, *args, **kwargs):
        super(ThemeForm, self).__init__(*args, **kwargs)
        # creates translated form fields, example: name_ru, name_en
        # len(10) is a hack for detect if settings.LANGUAGES is not configured it return all langs
        if len(settings.LANGUAGES) in range(10):
            for lid, (code, name) in enumerate(settings.LANGUAGES):
                # using enumerate for detect iteration number
                # first iteration is a default lang so it required fields
                required = True if lid == 0 else False
                self.fields['name_%s' % code] = forms.CharField(label='Название', required=required)
                self.fields['main_title_%s' % code] = forms.CharField(label='Заголовок', required=required)
                self.fields['description_%s' % code] = forms.CharField(label='Описание', required=False, widget=CKEditorWidget)#with saving form
                #meta data
                self.fields['title_%s' % code] = forms.CharField(label='Тайтл', required=False, max_length=255,
                                                                 widget=forms.TextInput(attrs={'style':'width: 550px'}))
                self.fields['keywords_%s' % code] = forms.CharField(label='Description', required=False, max_length=255,
                                                                 widget=forms.TextInput(attrs={'style':'width: 550px'}))
                self.fields['descriptions_%s' % code] = forms.CharField(label='Keywords', required=False, max_length=255,
                                                                 widget=forms.TextInput(attrs={'style':'width: 550px'}))

    def save(self, id=None):
        data = self.cleaned_data

        #create new Tag object or get exists
        if not id:
            theme = Theme()
        else:
            theme = Theme.objects.get(id=id)

        #flag = 0
        #for item in data['types']:
        #    flag = flag | getattr(Theme.types, item)

        #generates bitfield
        flag = reduce(lambda x,y: x|y, (getattr(Theme.types, item) for item in data['types']))
        theme.types = flag

        # uses because in the next loop data will be overwritten
        theme.save()



        #populate fields with zero language
        zero_fields = {}

        fill_trans_fields_all(Theme, theme, data, id, zero_fields)

        #autopopulate
        #populate empty fields and fields which was already populated
        theme_id = getattr(theme, 'id')
        populate_all(Theme, data, theme_id, zero_fields)


class TagForm(forms.Form):

    def __init__(self, *args, **kwargs):
        super(TagForm, self).__init__(*args, **kwargs)
        # creates translated form fields, example: name_ru, name_en
        # len(10) is a hack for detect if settings.LANGUAGES is not configured it return all langs
        if len(settings.LANGUAGES) in range(10):
            for lid, (code, name) in enumerate(settings.LANGUAGES):
                # using enumerate for detect iteration number
                # first iteration is a default lang so it required fields
                required = True if lid == 0 else False
                self.fields['name_%s' % code] = forms.CharField(label='Название', required=required)
                self.fields['main_title_%s' % code] = forms.CharField(label='Заголовок', required=required)
                self.fields['description_%s' % code] = forms.CharField(label='Описание', required=False, widget=CKEditorWidget)#with saving form
                #meta data
                self.fields['title_%s' % code] = forms.CharField(label='Тайтл', required=False, max_length=255,
                                                                 widget=forms.TextInput(attrs={'style':'width: 550px'}))
                self.fields['keywords_%s' % code] = forms.CharField(label='Description', required=False, max_length=255,
                                                                 widget=forms.TextInput(attrs={'style':'width: 550px'}))
                self.fields['descriptions_%s' % code] = forms.CharField(label='Keywords', required=False, max_length=255,)

        themes = ((item.id, item.name) for item in Theme.objects.all())
        self.fields['theme'] = forms.ChoiceField(label='Тема', choices=themes)

    def save(self, id=None):
        data = self.cleaned_data
        #create new Tag object or get exists
        if not id:
            tag = Tag()
        else:
            tag = Tag.objects.get(id=id)

        if data.get('theme'):
            tag.theme = Theme.objects.get(id=data['theme'])

        # uses because in the next loop data will be overwritten
        tag.save()

        #populate fields with zero language
        zero_fields = {}

        fill_trans_fields_all(Tag, tag, data, id, zero_fields)

        #autopopulate
        #populate empty fields and fields which was already populated
        tag_id = getattr(tag, 'id')
        populate_all(Tag, data, tag_id, zero_fields)