"""
System Name: Vasyworks
Project Name: vacancy_mgr
Encoding: UTF-8
Copyright (C) 2020 Yasuhiro Yamamoto
"""
import os
import datetime
from abc import ABCMeta, abstractmethod
from django.conf import settings
from django.db import transaction
from django.db.models import Q
from django.utils import timezone
from django.utils.http import urlsafe_base64_decode
from django.utils.encoding import force_text, escape_uri_path
from django.utils.translation import gettext_lazy as _
from django.template.response import TemplateResponse
from django.http import HttpResponseRedirect, Http404
from django.shortcuts import redirect, render, get_object_or_404
from django.views.generic import TemplateView, FormView, UpdateView
from django.utils.decorators import method_decorator
from django.contrib.auth.decorators import login_required
from django.contrib import messages
from django.urls import reverse_lazy
from django.views.decorators.csrf import csrf_protect
from django.views.decorators.debug import sensitive_post_parameters
from dateutil.relativedelta import relativedelta
from PIL import Image
from lib.convert import *
from lib.functions import *
from vacancy_item.models import VacancyInputGas
from vacancy_item.forms import VacancyInputGasForm


class VacancyInputGasView(UpdateView):
    """
    空室入力ガス
    """
    model = VacancyInputGas
    form_class = VacancyInputGasForm
    template_name = 'vacancy_item/vacancy_input.html'
    user = None
    back_url = None
    item = None

    @method_decorator(login_required)
    def dispatch(self, *args, **kwargs):
        self.user = self.request.user
        if not self.user:
            raise Http404
        if not self.user.is_company_admin:
            raise Http404

        self.back_url = self.request.GET.get('back_url')

        item_id = 0
        try:
            idb64 = force_text(urlsafe_base64_decode(kwargs.get('idb64')))
            if idb64.isdecimal():
                item_id = xint(idb64)
        except ValueError:
            raise Http404

        self.item = get_object_or_404(VacancyInputGas, pk=item_id)

        self.kwargs['pk'] = item_id

        return super().dispatch(*args, **kwargs)

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['user'] = self.user
        if self.back_url:
            context['back_url'] = self.back_url
            context['escaped_back_url'] = escape_uri_path(self.back_url)
        context['item'] = self.item
        context['item_name'] = 'ガス入力テキスト'
        context['action_url'] = '/vacancy_item/input_gas/'
        return context

    def form_valid(self, form):
        if settings.DEMO:
            messages.error(self.request, 'DEMOモードのため保存できません。')
            return redirect(self.get_success_url())
        else:
            form.save()
            messages.success(self.request, '保存しました。')
            return super().form_valid(form)

    def form_invalid(self, form):
        messages.error(self.request, '保存に失敗しました。')
        return super().form_invalid(form)

    def get_success_url(self):
        url = reverse_lazy('vacancy_item_vacancy_input_gas', kwargs={'idb64': self.item.idb64})

        if self.back_url:
            url += '?back_url=' + escape_uri_path(self.back_url)

        return url
