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__version__ = "0.1.0-dev"

from __future__ import unicode_literals

from django.apps import AppConfig

class RegistripeConfig(AppConfig):

    name = 'registripe'

import copy

from registripe import models

from django import forms

from django.core.urlresolvers import reverse

from django.db.models import F, Q

from django.forms import widgets

from django.utils import timezone

from django_countries import countries

from django_countries.fields import LazyTypedChoiceField

from django_countries.widgets import CountrySelectWidget

class NoRenderWidget(forms.widgets.HiddenInput):

    def render(self, name, value, attrs=None):

        return "<!-- no widget: " + name + " -->"

def secure_striped(field):

    ''' Calls stripe() with secure=True. '''

    return striped(field, True)

def striped(field, secure=False):

    oldwidget = field.widget

    field.widget = StripeWidgetProxy(oldwidget, secure)

    return field

class StripeWidgetProxy(widgets.Widget):

    def __init__(self, underlying, secure=False):

        self.underlying = underlying

        self.secure = secure

    def __deepcopy__(self, memo):

        copy_underlying = copy.deepcopy(self.underlying, memo)

        return type(self)(copy_underlying, self.secure)

    def __getattribute__(self, attr):

        spr = super(StripeWidgetProxy, self).__getattribute__

        if attr in ("underlying", "render", "secure", "__deepcopy__"):

            return spr(attr)

        else:

            return getattr(self.underlying, attr)

    def render(self, name, value, attrs=None):

        if not attrs:

            attrs = {}

        attrs["data-stripe"] = name

        if self.secure:

            name = ""

        return self.underlying.render(name, value, attrs=attrs)

class CreditCardForm(forms.Form):

    required_css_class = 'label-required'

    def _media(self):

        js = (

            'https://js.stripe.com/v2/',

            reverse("registripe_pubkey"),

        )

        return forms.Media(js=js)

    media = property(_media)

    number = secure_striped(forms.CharField(

        required=False,

        label="Credit card Number",

        help_text="Your credit card number, with or without spaces.",

        max_length=255,

    ))

    exp_month = secure_striped(forms.IntegerField(

        required=False,

        label="Card expiry month",

        min_value=1,

        max_value=12,

    ))

    exp_year = secure_striped(forms.IntegerField(

        required=False,

        label="Card expiry year",

        help_text="The expiry year for your card in 4-digit form",

        min_value=timezone.now().year,

    ))

    cvc = secure_striped(forms.CharField(

        required=False,

        min_length=3,

        max_length=4,

    ))

    stripe_token = forms.CharField(

        max_length=255,

        # required=True,

        widget=NoRenderWidget(),

    )

    name = striped(forms.CharField(

        required=True,

        label="Cardholder name",

        help_text="The cardholder's name, as it appears on the credit card",

        max_length=255,

    ))

    address_line1 = striped(forms.CharField(

        required=True,

        label="Cardholder account address, line 1",

        max_length=255,

    ))

    address_line2 = striped(forms.CharField(

        required=False,

        label="Cardholder account address, line 2",

        max_length=255,

    ))

    address_city = striped(forms.CharField(

        required=True,

        label="Cardholder account city",

        max_length=255,

    ))

    address_state = striped(forms.CharField(

        required=True,

        max_length=255,

        label="Cardholder account state or province",

    ))

    address_zip = striped(forms.CharField(

        required=True,

        max_length=255,

        label="Cardholder account postal code",

    ))

    address_country = striped(LazyTypedChoiceField(

        label="Cardholder account country",

        choices=countries,

        widget=CountrySelectWidget,

    ))

class StripeRefundForm(forms.Form):

    required_css_class = 'label-required'

    def __init__(self, *args, **kwargs):

        '''

        Arguments:

            user (User): The user whose charges we should filter to.

            min_value (Decimal): The minimum value of the charges we should

                show (currently, credit notes can only be cashed out in full.)

        '''

        user = kwargs.pop('user', None)

        min_value = kwargs.pop('min_value', None)

        super(StripeRefundForm, self).__init__(*args, **kwargs)

        payment_field = self.fields['payment']

        qs = payment_field.queryset

        if user:

            qs = qs.filter(

                charge__customer__user=user,

            )

        if min_value is not None:

            # amount >= amount_to_refund + amount_refunded

            # No refunds yet

            q1 = (

                Q(charge__amount_refunded__isnull=True) &

                Q(charge__amount__gte=min_value)

            )

            # There are some refunds

            q2 = (

                Q(charge__amount_refunded__isnull=False) &

                Q(charge__amount__gte=(

                    F("charge__amount_refunded") + min_value))

            )

            qs = qs.filter(q1 | q2)

        payment_field.queryset = qs

    payment = forms.ModelChoiceField(

        required=True,

        queryset=models.StripePayment.objects.all(),

    )

'''{

From stripe.js details:

Card details:

The first argument to createToken is a JavaScript object containing credit

card data entered by the user. It should contain the following required

members:

number: card number as a string without any separators

(e.g., "4242424242424242")

exp_month: two digit number representing the card's expiration month

(e.g., 12)

exp_year: two or four digit number representing the card's expiration year

(e.g., 2017)

(The expiration date can also be passed as a single string.)

cvc: optional, but we highly recommend you provide it to help prevent fraud.

This is the card's security code, as a string (e.g., "123").

The following fields are entirely optional and cannot result in a token

creation failure:

name: cardholder name

address_line1: billing address line 1

address_line2: billing address line 2

address_city: billing address city

address_state: billing address state

address_zip: billing postal code as a string (e.g., "94301")

address_country: billing address country

}

'''

# -*- coding: utf-8 -*-

# Generated by Django 1.9.2 on 2016-09-21 06:19

from __future__ import unicode_literals

from django.db import migrations, models

import django.db.models.deletion

class Migration(migrations.Migration):

    initial = True

    dependencies = [

        ('pinax_stripe', '0003_make_cvc_check_blankable'),

        ('registrasion', '0005_auto_20160905_0945'),

    ]

    operations = [

        migrations.CreateModel(

            name='StripePayment',

            fields=[

                ('paymentbase_ptr', models.OneToOneField(

                    auto_created=True,

                    on_delete=django.db.models.deletion.CASCADE,

                    parent_link=True, primary_key=True, serialize=False,

                    to='registrasion.PaymentBase')),

                ('charge',

                 models.ForeignKey(

                    on_delete=django.db.models.deletion.CASCADE,

                    to='pinax_stripe.Charge')),

            ],

            bases=('registrasion.paymentbase',),

        ),

    ]

# -*- coding: utf-8 -*-

# Generated by Django 1.9.2 on 2016-09-23 06:36

from __future__ import unicode_literals

from django.db import migrations, models

import django.db.models.deletion

class Migration(migrations.Migration):

    dependencies = [

        ('pinax_stripe', '0003_make_cvc_check_blankable'),

        ('registrasion', '0005_auto_20160905_0945'),

        ('registripe', '0001_initial'),

    ]

    operations = [

        migrations.CreateModel(

            name='StripeCreditNoteRefund',

            fields=[

                ('creditnoterefund_ptr', models.OneToOneField(

                    auto_created=True,

                    on_delete=django.db.models.deletion.CASCADE,

                    parent_link=True, primary_key=True, serialize=False,

                    to='registrasion.CreditNoteRefund')),

                ('charge',

                 models.ForeignKey(

                     on_delete=django.db.models.deletion.CASCADE,

                     to='pinax_stripe.Charge')),

            ],

            bases=('registrasion.creditnoterefund',),

        ),

    ]

from __future__ import unicode_literals

from django.db import models

from registrasion.models import commerce

from pinax.stripe.models import Charge

class StripePayment(commerce.PaymentBase):

    charge = models.ForeignKey(Charge)

class StripeCreditNoteRefund(commerce.CreditNoteRefund):

    charge = models.ForeignKey(Charge)

from django.conf.urls import url

from registripe import views

from pinax.stripe.views import Webhook

urlpatterns = [

    url(r"^card/([0-9]*)/$", views.card, name="registripe_card"),

    url(r"^card/([0-9]*)/([0-9A-Za-z]*)/$", views.card,

        name="registripe_card"),

    url(r"^pubkey/$", views.pubkey_script, name="registripe_pubkey"),

    url(r"^refund/([0-9]*)/$", views.refund, name="registripe_refund"),

    url(r"^webhook/$", Webhook.as_view(), name="pinax_stripe_webhook"),

]

from registripe import forms

from registripe import models

from django.core.exceptions import ValidationError

from django.conf import settings

from django.contrib import messages

from django.contrib.auth.decorators import user_passes_test

from django.db import transaction

from django.http import Http404

from django.http import HttpResponse

from django.shortcuts import redirect, render

from registrasion.controllers.credit_note import CreditNoteController

from registrasion.controllers.invoice import InvoiceController

from pinax.stripe import actions

from stripe.error import StripeError

from symposion.conference.models import Conference

CURRENCY = settings.INVOICE_CURRENCY

CONFERENCE_ID = settings.CONFERENCE_ID

def _staff_only(user):

    ''' Returns true if the user is staff. '''

    return user.is_staff

def pubkey_script(request):

    ''' Returns a JS snippet that sets the Stripe public key for Stripe.js. '''

    script_template = "Stripe.setPublishableKey('%s');"

    script = script_template % settings.PINAX_STRIPE_PUBLIC_KEY

    return HttpResponse(script, content_type="text/javascript")

def card(request, invoice_id, access_code=None):

    ''' View that shows and processes a Stripe CreditCardForm to pay the given

    invoice. Redirects back to the invoice once the invoice is fully paid.

    Arguments:

        invoice_id (castable to str): The invoice id for the invoice to pay.

        access_code (str): The optional access code for the invoice (for

            unauthenticated payment)

    '''

    form = forms.CreditCardForm(request.POST or None)

    inv = InvoiceController.for_id_or_404(str(invoice_id))

    if not inv.can_view(user=request.user, access_code=access_code):

        raise Http404()

    args = [inv.invoice.id]

    if access_code:

        args.append(access_code)

    to_invoice = redirect("invoice", *args)

    if inv.invoice.balance_due() <= 0:

        return to_invoice

    if request.POST and form.is_valid():

        try:

            inv.validate_allowed_to_pay()

            process_card(request, form, inv)

            return to_invoice

        except StripeError as e:

            form.add_error(None, ValidationError(e))

        except ValidationError as ve:

            form.add_error(None, ve)

    data = {

        "invoice": inv.invoice,

        "form": form,

    }

    return render(

        request, "registrasion/stripe/credit_card_payment.html", data

    )

@transaction.atomic

def process_card(request, form, inv):

    ''' Processes the given credit card form

    Arguments:

        request: the current request context

        form: a CreditCardForm

        inv: an InvoiceController

    '''

    conference = Conference.objects.get(id=CONFERENCE_ID)

    amount_to_pay = inv.invoice.balance_due()

    user = inv.invoice.user

    token = form.cleaned_data["stripe_token"]

    customer = actions.customers.get_customer_for_user(user)

    if not customer:

        customer = actions.customers.create(user)

    card = actions.sources.create_card(customer, token)

    description = "Payment for %s invoice #%s" % (

        conference.title, inv.invoice.id

    )

    charge = actions.charges.create(

        amount_to_pay,

        customer,

        source=card,

        currency=CURRENCY,

        description=description,

        capture=True,

    )

    receipt = charge.stripe_charge.id

    reference = "Paid with Stripe reference: " + receipt

    # Create the payment object

    models.StripePayment.objects.create(

        invoice=inv.invoice,

        reference=reference,

        amount=charge.amount,

        charge=charge,

    )

    inv.update_status()

    messages.success(request, "This invoice was successfully paid.")

@user_passes_test(_staff_only)

def refund(request, credit_note_id):

    ''' Allows staff to select a Stripe charge for the owner of the credit

    note, and refund the credit note into stripe. '''

    cn = CreditNoteController.for_id_or_404(str(credit_note_id))

    to_credit_note = redirect("credit_note", cn.credit_note.id)

    if not cn.credit_note.is_unclaimed:

        return to_credit_note

    form = forms.StripeRefundForm(

        request.POST or None,

        user=cn.credit_note.invoice.user,

        min_value=cn.credit_note.value,

    )

    if request.POST and form.is_valid():

        try:

            process_refund(cn, form)

            return to_credit_note

        except StripeError as se:

            form.add_error(None, ValidationError(se))

    data = {

        "credit_note": cn.credit_note,

        "form": form,

    }

    return render(

        request, "registrasion/stripe/refund.html", data

    )

def process_refund(cn, form):

    raise NotImplementedError("Does not actually refund a user")

    payment = form.cleaned_data["payment"]

    charge = payment.charge

    to_refund = cn.credit_note.value

    stripe_charge_id = charge.stripe_charge.id

    # Test that the given charge is allowed to be refunded.

    max_refund = actions.charges.calculate_refund_amount(charge)

    if max_refund < to_refund:

        raise ValidationError(

            "You must select a payment holding greater value than "

            "the credit note."

        )

    refund = actions.refunds.create(charge, to_refund) # noqa

    models.StripeCreditNoteRefund.objects.create(

        parent=cn.credit_note,

        charge=charge,

        reference="Refunded %s to Stripe charge %s" % (

            to_refund, stripe_charge_id

        )

    )