WIP: adding delivery receipt endpoint for mmg

app/clients/sms/mmg.py

@@ -1,7 +1,44 @@
 from flask import current_app
 from monotonic import monotonic
-from requests import request, RequestException, HTTPError
-from app.clients.sms import SmsClient
+from requests import (request, RequestException, HTTPError)
+
+from app.clients import (ClientResponse, STATISTICS_DELIVERED, STATISTICS_FAILURE)
+from app.clients.sms import (SmsClient, SmsClientException)
+
+
+class FiretextResponses(ClientResponse):
+    def __init__(self):
+        ClientResponse.__init__(self)
+        self.__response_model__ = {
+            '0': {
+                "message": 'Delivered',
+                "notification_statistics_status": STATISTICS_DELIVERED,
+                "success": True,
+                "notification_status": 'delivered'
+            },
+            '1': {
+                "message": 'Declined',
+                "success": False,
+                "notification_statistics_status": STATISTICS_FAILURE,
+                "notification_status": 'failed'
+            },
+            '2': {
+                "message": 'Undelivered (Pending with Network)',
+                "success": False,
+                "notification_statistics_status": None,
+                "notification_status": 'sent'
+            }
+        }
+
+
+
+class MMGClientException(SmsClientException):
+    def __init__(self, error_response):
+        self.code = error_response['Error']
+        self.description = error_response['Description']
+
+    def __str__(self):
+        return "Code {} description {}".format(self.code, self.description)
 
 
 class MMGClient(SmsClient):
@@ -30,6 +67,10 @@ class MMGClient(SmsClient):
         try:
             response = request("POST", "https://www.mmgrp.co.uk/API/json/api.php",
                                data=data)
+            if response.status_code != 200:
+                error = response.json
+                raise MMGClientException(error)
+            response.raise_for_status()
         except RequestException as e:
             api_error = HTTPError.create(e)
             current_app.logger.error(
@@ -45,4 +86,3 @@ class MMGClient(SmsClient):
             elapsed_time = monotonic() - start_time
             current_app.logger.info("MMG request finished in {}".format(elapsed_time))
         return response
-