New db query that returns data about live services

This data includes service and org name, consent to research,
contact details and both intended and factual notifications
volumes by notification type.

This query was created to get data for a csv report for our
platform admins.

app/dao/services_dao.py

@@ -2,7 +2,7 @@ import uuid
 from datetime import date, datetime, timedelta
 
 from notifications_utils.statsd_decorators import statsd
-from sqlalchemy import asc, func
+from sqlalchemy import asc, func, case
 from sqlalchemy.orm import joinedload
 from flask import current_app
 
@@ -21,11 +21,13 @@ from app.dao.template_folder_dao import dao_get_valid_template_folders_by_id
 from app.models import (
     AnnualBilling,
     ApiKey,
+    FactBilling,
     InboundNumber,
     InvitedUser,
     Job,
     Notification,
     NotificationHistory,
+    Organisation,
     Permission,
     Service,
     ServicePermission,
@@ -72,6 +74,84 @@ def dao_count_live_services():
     ).count()
 
 
+def dao_fetch_live_services_data():
+    data = db.session.query(
+        Service.id,
+        Organisation.name.label("organisation_name"),
+        Service.name.label("service_name"),
+        Service.consent_to_research,
+        Service.go_live_user_id,
+        User.name.label('user_name'),
+        User.email_address,
+        User.mobile_number,
+        Service.go_live_at.label("live_date"),
+        Service.volume_sms,
+        Service.volume_email,
+        Service.volume_letter,
+        case([
+            (FactBilling.notification_type == 'email', func.sum(FactBilling.notifications_sent))
+        ], else_=0).label("email_totals"),
+        case([
+            (FactBilling.notification_type == 'sms', func.sum(FactBilling.notifications_sent))
+        ], else_=0).label("sms_totals"),
+        case([
+            (FactBilling.notification_type == 'letter', func.sum(FactBilling.notifications_sent))
+        ], else_=0).label("letter_totals"),
+    ).outerjoin(
+        Service.organisation
+    ).outerjoin(
+        FactBilling, Service.id == FactBilling.service_id
+    ).outerjoin(
+        User, Service.go_live_user_id == User.id
+    ).group_by(
+        Service.id,
+        Organisation.name,
+        Service.name,
+        Service.consent_to_research,
+        Service.go_live_user_id,
+        User.name,
+        User.email_address,
+        User.mobile_number,
+        Service.go_live_at,
+        Service.volume_sms,
+        Service.volume_email,
+        Service.volume_letter,
+        FactBilling.notification_type
+    ).all()
+    results = []
+    for row in data:
+        is_service_in_list = None
+        i = 0
+        while i < len(results):
+            if results[i]["service_id"] == row.id:
+                is_service_in_list = i
+                break
+            else:
+                i += 1
+        if is_service_in_list is not None:
+            results[is_service_in_list]["email_totals"] += row.email_totals
+            results[is_service_in_list]["sms_totals"] += row.sms_totals
+            results[is_service_in_list]["letter_totals"] += row.letter_totals
+        else:
+            results.append({
+                "service_id": row.id,
+                "service_name": row.service_name,
+                "organisation_name": row.organisation_name,
+                "consent_to_research": row.consent_to_research,
+                "contact_name": row.user_name,
+                "contact_email": row.email_address,
+                "contact_mobile": row.mobile_number,
+                "live_date": row.live_date,
+                "sms_volume_intent": row.volume_sms,
+                "email_volume_intent": row.volume_email,
+                "letter_volume_intent": row.volume_letter,
+                "sms_totals": row.sms_totals,
+                "email_totals": row.email_totals,
+                "letter_totals": row.letter_totals,
+            })
+    return results
+
+
 def dao_fetch_service_by_id(service_id, only_active=False):
     query = Service.query.filter_by(
         id=service_id