Merged PR 2441: KPIs - Customer Segmentation based on listings

This PR creates a new model int_core__mtd_accommodation_segmentation that provides the customer segments based on listing activity:
- 0
- 1-5
- 6-20
- 21-60
- 61+

For end of April 2024, the volume distribution on number of deals and total listings booked is:
![image.png](https://guardhog.visualstudio.com/4148d95f-4b6d-4205-bcff-e9c8e0d2ca65/_apis/git/repositories/54ac356f-aad7-46d2-b62c-e8c5b3bb8ebf/pullRequests/2441/attachments/image.png)
For information, I estimate that around 3% of listings with bookings are missed, according to the data displayed in the KPIs for 30th April 2024. This is because we enforce deal-based categorisation (same happens with the deal view, anyway)

Related work items: #19325

models/intermediate/core/int_core__mtd_accommodation_segmentation.sql

@@ -0,0 +1,42 @@
+{{ config(materialized="table", unique_key=["date", "id_deal"]) }}
+with
+    int_core__mtd_accommodation_lifecycle as (
+        select * from {{ ref("int_core__mtd_accommodation_lifecycle") }}
+    ),
+    int_core__unique_accommodation_to_user as (
+        select * from {{ ref("int_core__unique_accommodation_to_user") }}
+    ),
+    int_core__unified_user as (select * from {{ ref("int_core__unified_user") }}),
+
+    active_accommodations_per_deal as (
+        select
+            al.date,
+            uu.id_deal,
+            sum(
+                case when al.has_been_booked_within_last_12_months then 1 else 0 end
+            ) as accommodations_booked_in_12_months
+        from int_core__mtd_accommodation_lifecycle al
+        inner join
+            int_core__unique_accommodation_to_user atu
+            on al.id_accommodation = atu.id_accommodation
+        inner join int_core__unified_user uu on uu.id_user = atu.id_user_owner
+        where uu.id_deal is not null
+        group by 1, 2
+    )
+select
+    date,
+    id_deal,
+    case
+        when accommodations_booked_in_12_months = 0
+        then '0'
+        when accommodations_booked_in_12_months between 1 and 5
+        then '1-5'
+        when accommodations_booked_in_12_months between 6 and 20
+        then '6-20'
+        when accommodations_booked_in_12_months between 21 and 60
+        then '21-60'
+        when accommodations_booked_in_12_months >= 61
+        then '61+'
+    end as active_accommodations_per_deal_segmentation,
+    accommodations_booked_in_12_months
+from active_accommodations_per_deal

models/intermediate/core/schema.yaml

@@ -753,6 +753,63 @@ models:
         data_type: boolean
         description: If the listing has had a booking created in the past 12 months.
 
+  - name: int_core__mtd_accommodation_segmentation
+    description: |
+      This model contains the historic information regarding the customer segmentation based on active accommodations, 
+      also known as listings. This model depends on the int_core__mtd_accommodation_lifecycle, thus the time granularity
+      is the same as for any mtd model.
+
+      The segmentation is applied at deal level, not at user host level. This has the drawback that hosts without a 
+      deal assigned won't be considered in this segmentation. However, it correctly categorises customers based on the
+      number of listings across the different user hosts each deal can have. 
+
+      The segmentation is available in the field active_accommodations_per_deal_segmentation. It considers listings that 
+      have been booked within the last 12 months. Thus, it means it only considers the lifecycle states of 
+      03-First Time Booked, 04-Active and 07-Reactivated. The segments are the following:
+      - '0'
+      - '1-5'
+      - '6-20'
+      - '21-60'
+      - '61+'
+      These segments are inspired from the ones RevOps team uses, but the associated deals and listings volume will differ 
+      since the listing activity logic considered is different.
+
+    tests: 
+      - dbt_utils.unique_combination_of_columns:
+          combination_of_columns:
+            - date
+            - id_deal
+
+    columns:
+      - name: date
+        data_type: date
+        description: The date for the month-to-date. Information is inclusive to the date displayed. 
+        tests:
+          - not_null
+
+      - name: id_deal
+        data_type: character varying
+        description: Id of the deal associated to the host. 
+        tests:
+          - not_null
+
+      - name: active_accommodations_per_deal_segmentation
+        data_type: character varying
+        description: The segmentation based on the number of listings booked in the last 12 months. 
+        tests:
+          - not_null
+          - accepted_values:
+                values:
+                  - '0'
+                  - '1-5'
+                  - '6-20'
+                  - '21-60'
+                  - '61+'
+
+      - name: accommodations_booked_in_12_months
+        data_type: integer
+        description: Informative field of the actual number of listings booked in the last 12 months
+
   - name: int_core__mtd_deal_lifecycle
     description: |
       This model contains the historic information regarding the lifecycle of hosts, at deal level.