# -*- coding: utf-8 -*-
from django.shortcuts import render, redirect, get_object_or_404
from django.core.urlresolvers import reverse
from django.views.decorators.csrf import csrf_protect
from django.contrib.auth.decorators import login_required

from project.commons.paginator import pagination, save_per_page_value

from .. import models, forms


@login_required
@csrf_protect
@save_per_page_value
def bank_accounts_list(request, page_num=None):
    """Список расчетных счетов пользователя."""
    template_name = 'customer/bank_accounts/list.html'
    account_list = models.BankAccount.objects.get_all(request.user)
    page, pagination_form = pagination(request, account_list, page_num)
    return render(request, template_name, {'page': page, 'pagination_form': pagination_form,})


@login_required
@csrf_protect
def bank_accounts_add(request):
    """Добавить расчетный счет."""
    template_name='customer/bank_accounts/add.html'
    form_class = forms.BankAccountForm

    success_url = 'customer_bank_accounts_list'
    referer = request.POST.get('referer')
    if referer and reverse('customer_profile_edit') in referer:
        success_url = 'customer_profile_edit'

    if request.method == 'POST' and '_cancel' in request.POST:
        return redirect(success_url)

    if request.method == 'POST':
        form = form_class(data=request.POST)
        if form.is_valid():
            new_account = form.save(commit=False)
            new_account.user = request.user
            new_account.save()
            return redirect(success_url)
    else:
        form = form_class()

    dictionary = {
        'form': form,
        'referer': request.META.get('HTTP_REFERER'),
    }
    return render(request, template_name, dictionary)


@login_required
@csrf_protect
def bank_accounts_edit(request, id):
    """Редактировать расчетный счет."""
    template_name = 'customer/bank_accounts/edit.html'
    form_class = forms.BankAccountForm

    success_url = 'customer_bank_accounts_list'
    referer = request.POST.get('referer')
    if referer and reverse('customer_profile_edit') in referer:
        success_url = 'customer_profile_edit'

    if request.method == 'POST' and '_cancel' in request.POST:
        return redirect(success_url)

    account = get_object_or_404(models.BankAccount, pk=id, user=request.user)

    if request.method == 'POST':
        form = form_class(data=request.POST, instance=account)
        if form.is_valid():
            form.save()
            return redirect(success_url)
    else:
        form = form_class(instance=account)

    dictionary = {
        'account': account,
        'form': form,
        'referer': request.META.get('HTTP_REFERER'),
    }
    return render(request, template_name, dictionary)


@login_required
@csrf_protect
def bank_accounts_delete(request, id):
    """Удалить расчетный счет."""
    template_name='customer/bank_accounts/delete.html'

    success_url = 'customer_bank_accounts_list'
    referer = request.POST.get('referer')
    if referer and reverse('customer_profile_edit') in referer:
        success_url = 'customer_profile_edit'

    if request.method == 'POST' and '_cancel' in request.POST:
        return redirect(success_url)

    account = get_object_or_404(models.BankAccount, pk=id, user=request.user)

    if request.method == 'POST':
        account.delete()
        # TODO обработать ошибки удаления
        return redirect(success_url)

    dictionary = {
        'account': account,
        'referer': request.META.get('HTTP_REFERER'),
    }
    return render(request, template_name, dictionary)