Add basic shipping functionality

src/core/usps.py

@@ -0,0 +1,38 @@
+import json
+import requests
+import xmltodict
+
+from lxml import etree
+from usps import USPSApi
+
+class USPSApiWithRate(USPSApi):
+    urls = {
+        'tracking': 'TrackV2{test}&XML={xml}',
+        'label': 'eVS{test}&XML={xml}',
+        'validate': 'Verify&XML={xml}',
+        'rate': 'RateV4&XML={xml}',
+    }
+
+    def get_rate(self, *args, **kwargs):
+        return Rate(self, *args, **kwargs)
+
+
+class Rate:
+
+    def __init__(self, usps, box, **kwargs):
+        xml = etree.Element('RateV4Request', {'USERID': usps.api_user_id})
+        etree.SubElement(xml, 'Revision').text = '2'
+        package = etree.SubElement(xml, 'Package', {'ID': '0'})
+        etree.SubElement(package, 'Service').text = box['service']
+        etree.SubElement(package, 'ZipOrigination').text = box['zip_origination']
+        etree.SubElement(package, 'ZipDestination').text = box['zip_destination']
+        etree.SubElement(package, 'Pounds').text = box['pounds']
+        etree.SubElement(package, 'Ounces').text = box['ounces']
+        etree.SubElement(package, 'Container').text = box['container']
+        etree.SubElement(package, 'Width').text = box['width']
+        etree.SubElement(package, 'Length').text = box['length']
+        etree.SubElement(package, 'Height').text = box['height']
+        etree.SubElement(package, 'Girth').text = box['girth']
+        etree.SubElement(package, 'Machinable').text = box['machinable']
+
+        self.result = usps.send_request('rate', xml)

src/ptcoffee/config.py

@@ -20,6 +20,7 @@ CACHE_CONFIG = {
 
 PAYPAL_CLIENT_ID = os.environ.get('PAYPAL_CLIENT_ID', '')
 PAYPAL_SECRET_ID = os.environ.get('PAYPAL_SECRET_ID', '')
+USPS_USER_ID = os.environ.get('USPS_USER_ID', '639NATHA3105')
 
 ANYMAIL_CONFIG = {
     'MAILGUN_API_KEY': os.environ.get('MAILGUN_API_KEY', ''),

src/static/styles/main.css

@@ -1,8 +1,8 @@
 :root {
     --fg-color: #34201a;
     --fg-alt-color: #663a2d;
-    --bg-color: #f5f5f5;
+    --bg-color: #fffbf8;
-    --bg-alt-color: #c8a783;
+    --bg-alt-color: #b07952;
     --gray-color: #9d9d9d;
     --yellow-color: #f8a911;
     --yellow-alt-color: #ffce6f;

src/storefront/cart.py

@@ -4,6 +4,7 @@ from django.conf import settings
 from core.models import Product, OrderLine, Coupon
 from .payments import CreateOrder
 
+from core.usps import USPSApiWithRate
 from core import (
     DiscountValueType,
     VoucherType,
@@ -63,6 +64,39 @@ class Cart:
     def __len__(self):
         return sum(item['quantity'] for item in self.cart.values())
 
+    def get_total_weight(self):
+        return sum([item['product'].weight.value * item['quantity'] for item in self.cart.values()])
+
+    def get_shipping_box(self):
+        logger.debug(len(self))
+
+        if len(self) > 6 and len(self) <= 10:
+            return "LG FLAT RATE BOX"
+        elif len(self) > 2 and len(self) <= 6:
+            return "REGIONALRATEBOXB"
+        elif len(self) <= 2:
+            return "REGIONALRATEBOXA"
+        else:
+            return "VARIABLE"
+
+    def get_shipping_cost(self):
+        box = {
+            'service': 'PRIORITY COMMERCIAL',
+            'zip_origination': '98368',
+            'zip_destination': f'{self.session.get("shipping_address")["postal_code"]}',
+            'pounds': '0',
+            'ounces': f'{self.get_total_weight()}',
+            'container': f'{self.get_shipping_box()}',
+            'width': '',
+            'length': '',
+            'height': '',
+            'girth': '',
+            'machinable': 'TRUE'
+        }
+        usps = USPSApiWithRate(settings.USPS_USER_ID, test=True)
+        validation = usps.get_rate(box)
+        return Decimal(validation.result['RateV4Response']['Package']['Postage']['CommercialRate'])
+
     def get_total_price(self):
         return sum(Decimal(item['price']) * item['quantity'] for item in self.cart.values())
 
@@ -81,7 +115,7 @@ class Cart:
                 'total_price': f'{self.get_total_price_after_discount()}',
                 'item_total': f'{self.get_total_price()}',
                 'discount': f'{self.get_discount()}',
-                'shipping_price': '0',
+                'shipping_price': f'{self.get_shipping_cost()}',
                 'tax_total': '0',
                 'shipping_method': 'US POSTAL SERVICE',
                 'shipping_address': self.build_shipping_address(self.session.get('shipping_address')),
@@ -130,5 +164,8 @@ class Cart:
                 return round((self.coupon.discount_value / Decimal('100')) * self.get_total_price(), 2)
         return Decimal('0')
 
-    def get_total_price_after_discount(self):
+    def get_subtotal_price_after_discount(self):
         return round(self.get_total_price() - self.get_discount(), 2)
+
+    def get_total_price_after_discount(self):
+        return round(self.get_total_price() - self.get_discount() + self.get_shipping_cost(), 2)

src/storefront/templates/storefront/cart_detail.html

@@ -51,7 +51,7 @@
                 <table class="cart__totals">
                     <tr>
                         <td>Subtotal</td>
-                        <td>${{cart.get_total_price|floatformat:"2"}}</td>
+                        <td>${{ cart.get_total_price|floatformat:"2" }}</td>
                     </tr>
                     {% if cart.coupon %}
                     <tr>
@@ -61,7 +61,7 @@
                     {% endif %}
                     <tr>
                         <th>Total</th>
-                        <td><strong>${{cart.get_total_price_after_discount|floatformat:"2"}}</strong></td>
+                        <td><strong>${{cart.get_subtotal_price_after_discount|floatformat:"2"}}</strong></td>
                     </tr>
                 </table>
             </div>

src/storefront/templates/storefront/order_form.html

@@ -62,6 +62,10 @@
                     <td>{{cart.coupon.discount_value}} {{cart.coupon.get_discount_value_type_display}}</td>
                 </tr>
                 {% endif %}
+                <tr>
+                    <td>Shipping</td>
+                    <td>${{ cart.get_shipping_cost }}</small></td>
+                </tr>
                 <tr>
                     <th>Total</th>
                     <td><strong>${{cart.get_total_price_after_discount|floatformat:"2"}}</strong></td>