Query directly for services with high failure rate

app/service/utils.py

@@ -2,15 +2,11 @@ import itertools
 
 from notifications_utils.recipients import allowed_to_send_to
 
-from app.dao.services_dao import dao_find_real_sms_notification_count_by_status_for_live_services
-
 from app.models import (
     ServiceWhitelist,
     MOBILE_TYPE, EMAIL_TYPE,
     KEY_TYPE_TEST, KEY_TYPE_TEAM, KEY_TYPE_NORMAL)
 
-from app.service import statistics
-
 
 def get_recipients_from_request(request_json, key, type):
     return [(type, recipient) for recipient in request_json.get(key)]
@@ -56,21 +52,3 @@ def service_allowed_to_send_to(recipient, service, key_type, allow_whitelisted_r
                 whitelist_members
             )
         )
-
-
-def get_services_with_high_failure_rates(start_date, end_date, rate=0.25, threshold=100):
-    stats = dao_find_real_sms_notification_count_by_status_for_live_services(
-        start_date=start_date,
-        end_date=end_date,
-    )
-    results = []
-    for service_id, rows in itertools.groupby(stats, lambda x: x.service_id):
-        rows = list(rows)
-
-        permanent_failure_rate = statistics.get_rate_of_permanent_failures_for_service(rows, threshold=threshold)
-        if permanent_failure_rate >= rate:
-            results.append({
-                'id': str(rows[0].service_id),
-                'permanent_failure_rate': permanent_failure_rate
-            })
-    return results