7 files changed, 288 insertions, 0 deletions

diff --git a/restaurant_orders/core/__init__.py b/restaurant_orders/core/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/restaurant_orders/core/__init__.py
diff --git a/restaurant_orders/core/admin.py b/restaurant_orders/core/admin.py
new file mode 100644
index 0000000..5094530
--- /dev/null
+++ b/restaurant_orders/core/admin.py
@@ -0,0 +1,5 @@
+from django.contrib import admin
+from core.models import Restaurant, Order
+
+admin.site.register(Restaurant)
+admin.site.register(Order)
diff --git a/restaurant_orders/core/apps.py b/restaurant_orders/core/apps.py
new file mode 100644
index 0000000..8115ae6
--- /dev/null
+++ b/restaurant_orders/core/apps.py
@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class CoreConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'core'
diff --git a/restaurant_orders/core/decorators.py b/restaurant_orders/core/decorators.py
new file mode 100644
index 0000000..d8583f8
--- /dev/null
+++ b/restaurant_orders/core/decorators.py
@@ -0,0 +1,36 @@
+from django.http import HttpResponse
+from core.models import Restaurant
+
+import base64
+import hashlib
+import hmac
+
+def get_webhook_secret_from_restaurant(pk):
+    try:
+        token = Restaurant.objects.get(pk=pk).woocommerce_webhook_secret
+        if token != '':
+            return token
+    except Restaurant.DoesNotExist:
+        pass
+    return None
+
+def compare_signatures(body, webhook_secret, request_sig):
+    signature = hmac.new(webhook_secret.encode(), body, hashlib.sha256).digest()
+    return hmac.compare_digest(request_sig.encode(), base64.b64encode(signature))
+
+
+def woocommerce_authentication_required(view):
+    def inner(request, restaurant_pk, *args, **kwargs):
+        webhook_secret = get_webhook_secret_from_restaurant(restaurant_pk)
+        request_sig = request.headers.get('x-wc-webhook-signature')
+
+        if not webhook_secret or not request_sig:
+            return HttpResponse('Unauthorized')
+
+        if compare_signatures(request.body, webhook_secret, request_sig):
+            return view(request, restaurant_pk, *args, **kwargs)
+
+        response = HttpResponse('Unauthorized')
+        response.status_code = 403
+        return response
+    return inner
diff --git a/restaurant_orders/core/models.py b/restaurant_orders/core/models.py
new file mode 100644
index 0000000..91147d2
--- /dev/null
+++ b/restaurant_orders/core/models.py
@@ -0,0 +1,90 @@
+from django.db import models
+from django.contrib.auth.models import User
+from django.shortcuts import Http404, get_object_or_404
+
+from datetime import datetime
+
+
+class Restaurant(models.Model):
+    name = models.CharField(max_length=50)
+    users = models.ManyToManyField(User)
+
+    wordpress_url = models.URLField(max_length=50, unique=True)
+    woocommerce_consumer_key = models.CharField(max_length=50)
+    woocommerce_consumer_secret = models.CharField(max_length=50)
+    woocommerce_webhook_secret = models.CharField(max_length=50)
+
+    @classmethod
+    def get_user_restaurants(cls, user: User):
+        return cls.objects.filter(users=user)
+
+    @classmethod
+    def get_user_restaurant_or_404(cls, pk, user: User):
+        return get_object_or_404(cls, pk=pk, users=user)
+
+    def __str__(self):
+        return self.name
+
+
+class Order(models.Model):
+    WP_STATES = (
+        ('pending', 'Oczekujace'),
+        ('processing', 'Przetwarzane'),
+        ('on-hold', 'Wstrzymane'),
+        ('completed', 'Zakonczone'),
+        ('cancelled', 'Anulowane'),
+        ('refunded', 'Zwrocone'),
+        ('failed', 'Nie powiodlo sie'),
+        ('trash', 'Usuniete')
+    )
+
+    wp_id = models.IntegerField(editable=False)
+    wp_status = models.CharField(max_length=30, choices=WP_STATES)
+    wp_order_key = models.CharField(max_length=50, editable=False)
+    date_created = models.DateField(editable=False)
+    date_modified = models.DateField()
+    line_items = models.JSONField()
+    billing = models.JSONField()
+    restaurant = models.ForeignKey(Restaurant, on_delete=models.CASCADE)
+    can_display = models.BooleanField(default=True)
+
+    @classmethod
+    def update_or_create_from_response(cls, response, restaurant_model):
+        try:
+            obj = cls.objects.update_or_create(
+                wp_id=response['id'],
+                wp_order_key=response['order_key'],
+                restaurant=restaurant_model,
+                defaults={
+                    'wp_status': response['status'],
+                    'date_created': datetime.strptime(response['date_created'], '%Y-%m-%dT%H:%M:%S'),
+                    'date_modified': datetime.strptime(response['date_modified'], '%Y-%m-%dT%H:%M:%S'),
+                    'line_items': response['line_items'],
+                    'billing': response['billing'],
+                }
+            )
+            return obj
+        except KeyError:
+            return None
+
+
+    @classmethod
+    def create_from_response_disable_view(cls, response, restaurant_model):
+        obj, _ = cls.update_or_create_from_response(response, restaurant_model)
+        obj.can_display = False
+        obj.save()
+        return obj
+
+    @classmethod
+    def get_order(cls, pk, user: User):
+        try:
+            return cls.objects.get(
+                pk=pk,
+                can_display=True,
+                restaurant__users=user
+            )
+        except cls.DoesNotExist:
+            raise Http404
+
+    def __str__(self):
+        return f'{self.wp_order_key} - {self.date_created}'
diff --git a/restaurant_orders/core/tasks.py b/restaurant_orders/core/tasks.py
new file mode 100644
index 0000000..f1c0192
--- /dev/null
+++ b/restaurant_orders/core/tasks.py
@@ -0,0 +1,51 @@
+from celery import shared_task
+
+from django.core import serializers
+
+from restaurant_orders.consumers import NotificationsConsumer
+
+from core.utils import Orders, SendMail, SendSms
+import re
+
+
+def send_notification(is_success, message, user_pk):
+    status = NotificationsConsumer.OK if is_success else NotificationsConsumer.ERROR
+    NotificationsConsumer.send_notifications(
+        user_pk,
+        status,
+        message
+    )
+
+
+
+@shared_task
+def create_order_and_send_notification(order, items, is_email=None, is_sms=None, user_pk=None):
+    order = [obj for obj in serializers.deserialize('json', order)]
+    if len(order) != 1:
+        return
+    order = order[0].object
+
+    phone = order.billing.get('phone')
+    email = order.billing.get('email')
+    new_order = Orders(order.restaurant, order.billing).create_custom_order(items)
+
+ 
+#   if new_order is None:
+#        send_notification(False,
+#                          "Niestety nie udalo sie skontaktowac z restauracja, prosze sprowbowac ponownie pozniej.",
+#                          user_pk)
+#        return
+
+    EMAIL_REGEX = r'\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b'
+
+    if is_sms: # TODO: Make regex for sms
+        sms = SendSms(new_order).send()
+        send_notification(*sms, user_pk)
+
+    if is_email and re.fullmatch(EMAIL_REGEX, str(email)):
+        mail = SendMail(new_order).send()
+        send_notification(*mail, user_pk)
+
+
+    
+
diff --git a/restaurant_orders/core/utils.py b/restaurant_orders/core/utils.py
new file mode 100644
index 0000000..d716a9c
--- /dev/null
+++ b/restaurant_orders/core/utils.py
@@ -0,0 +1,100 @@
+import json
+from woocommerce import API
+from twilio.rest import Client
+from twilio.base.exceptions import TwilioRestException
+
+from django.core.mail import send_mail
+from django.conf import settings
+
+from core.models import Order
+
+class Sender():
+    def __init__(self, order):
+        self.order = order
+
+    def get_order_url(self):
+        order_id = self.order.wp_id
+        order_key = self.order.wp_order_key
+        restaurant_url = self.order.restaurant.wordpress_url
+        return f'{restaurant_url}/zamowienie/order-pay/{order_id}/?pay_for_order=true&key={order_key}'
+
+    def get_message_body(self):
+        return f'Prosze dokonac platnosci: {self.get_order_url()}'
+
+    def send(self) -> (bool, str):
+        pass
+
+
+class SendSms(Sender): 
+    def __init__(self, order):
+        account_sid = settings.TWILIO_ACCOUNT_SID
+        auth_token  = settings.TWILIO_TOKEN
+        
+        self.client = Client(account_sid, auth_token)
+        self.from_ = "+17432007359"
+        
+        super().__init__(order)
+
+    def send(self) -> (bool, str):
+        phone = self.order.billing.get('phone', None)
+        phone = "+48609155122"
+        if phone:
+            try:
+                message = self.client.messages.create(to=phone,
+                                                      from_=self.from_,
+                                                      body=self.get_message_body())
+            except TwilioRestException as err:
+                return (False, err.msg)
+            else:
+                return (True, 'Wyslano sms')
+        return (False, 'Nie znaleziono numeru telefonu.')
+
+
+
+class SendMail(Sender):
+    def send(self) -> (bool, str):
+        email = self.order.billing.get('email', None)
+        email = 'jdlugosz963@gmail.com'
+        if email:  # Jesli sie spierdoli to wypluje  
+            try:
+                send_mail('Strona do zaplaty', self.get_message_body(), 'no-reply@reami.pl', (email, ), fail_silently=False)
+            except smtplib.SMTPException:
+                return (False, "Niestety nie udalo sie wyslac maila.")
+            else:
+                return (True, "Wyslano maila.")
+        return (False, "Nie znaleziono maila.")
+
+
+class Orders:
+    def __init__(self, restaurant, billing):
+        self.restaurant = restaurant
+        self.billing = billing
+
+        self.wcapi = API(
+            url=restaurant.wordpress_url,
+            consumer_key=restaurant.woocommerce_consumer_key,
+            consumer_secret=restaurant.woocommerce_consumer_secret,
+            timeout=7
+        )
+
+    def get_custom_order_data(self, items):
+        return {
+            "payment_method": "bacs",
+            "payment_method_title": "Direct Bank Transfer",
+            "set_paid": False,
+            "billing": self.billing,
+            "shipping": self.billing,
+            "line_items": [
+                {
+                    "product_id": pk,
+                    "total": total,
+                    "quantity": 1,
+                } for pk, total in items
+            ]
+        }
+
+    def create_custom_order(self, items):
+        data = self.get_custom_order_data(items)
+        response = self.wcapi.post("orders", data=data).json()
+        return Order.create_from_response_disable_view(response, self.restaurant)
+