Merged PR 2465: Creating model host_booking_fees

# Description

New model to replace in the host_fees report which is now including currencies

# Checklist

- [X] The edited models and dependants run properly with production data.
- [X] The edited models are sufficiently documented.
- [X] The edited models contain PK tests, and I've ran and passed them.
- [X] I have checked for DRY opportunities with other models and docs.
- [X] I've picked the right materialization for the affected models.

# Other

- [ ] Check if a full-refresh is required after this PR is merged.

Related work items: #18875

models/intermediate/core/int_core__host_booking_fees.sql

@@ -0,0 +1,30 @@
+with
+    stg_core__booking as (select * from {{ ref("stg_core__booking") }}),
+    stg_core__booking_state as (select * from {{ ref("stg_core__booking_state") }}),
+    int_core__booking_charge_events as (
+        select * from {{ ref("int_core__booking_charge_events") }}
+    ),
+    int_core__duplicate_bookings as (
+        select * from {{ ref("int_core__duplicate_bookings") }}
+    ),
+    int_core__unified_user as (select * from {{ ref("int_core__unified_user") }})
+select
+    b.id_booking,
+    b.id_user_guest,
+    b.id_user_host,
+    b.id_accommodation,
+    bs.booking_state,
+    coalesce(db.is_duplicate_booking, false) as is_duplicate_booking,
+    bce.booking_fee_local,
+    uu.account_currency_iso4217,
+    bce.booking_fee_charge_at_utc,
+    bce.booking_fee_charge_date_utc
+from stg_core__booking b
+left join int_core__booking_charge_events bce on b.id_booking = bce.id_booking
+left join stg_core__booking_state bs on b.id_booking_state = bs.id_booking_state
+left join int_core__duplicate_bookings db on b.id_booking = db.id_booking
+left join
+    int_core__unified_user uu on lower(b.id_user_host) = lower(uu.id_user)
+    -- We user 'lower' because the id_user_host can be found in capital letters or not
+    -- depending on the table and Postgres is case sensitive
+    

models/intermediate/core/schema.yaml

@@ -1572,4 +1572,89 @@ models:
         data_type: bigint
         description: 
           "Count of how many Check-in covers have been
-          purchased for this accommodation"
+          purchased for this accommodation"
+
+  - name: int_core__host_booking_fees
+    description: 
+      Bookings that have been processed by the Superhog backend.
+      Each record matches one booking and has information on host
+      booking fees, when they were charged and the currency used by 
+      the host.
+
+    columns:
+      - name: id_booking
+        data_type: bigint
+        description: "The unique, Superhog generated id for this booking."
+        tests:
+          - unique
+          - not_null
+
+      - name: id_user_guest
+        data_type: character varying
+        description: The UUID of the Superhog user playing the guest role in the booking.
+
+      - name: id_user_host
+        data_type: character varying
+        description: The UUID of the Superhog user playing the host role in the booking.
+        tests:
+          - not_null
+
+      - name: id_accommodation
+        data_type: bigint
+        description: The ID of the booked listing.
+
+      - name: booking_state
+        data_type: character varying
+        description: 
+          "State in which the booking is, could be either of the following:
+          - Approved
+          - NotApproved
+          - Cancelled
+          - Rejected
+          - NoFlags
+          - Flagged
+          - IncompleteInformation"
+        tests:          
+          - accepted_values:
+                values:
+                  - 'Approved'
+                  - 'NotApproved'
+                  - 'Cancelled'
+                  - 'Rejected'
+                  - 'NoFlags'
+                  - 'Flagged'
+                  - 'IncompleteInformation'
+
+      - name: is_duplicate_booking
+        data_type: boolean
+        description:  |
+          A flag that identifies whether the booking is a duplicate.
+          A booking is considered a duplicate if there's an older booking with the same user,
+          accomodation and check-in date. If there are two or more bookings with the same user,
+          accomodation and check-in date, the oldest one will have False as a value in this field,
+          and the other ones will have True as a value in this Failed."
+          Put simply, if you don't want to receive duplicates, filter this field to False.
+
+      - name: booking_fee_local
+        data_type: numeric
+        description: "The fee to apply to the booking, in host currency."
+
+      - name: account_currency_iso4217
+        data_type: character varying
+        description: "Currency used by host/pm/platform users."
+
+      - name: booking_fee_charge_at_utc
+        data_type: timestamp without time zone
+        description: |
+          The point in time in which the booking should be invoiced.
+
+          This could be the check-in date of the booking or the date in which the guest verification
+          started, depending on the billing settings of the host.
+
+      - name: booking_fee_charge_date_utc
+        data_type: date
+        description: |
+          The date in which the booking should be invoiced.
+
+          This could be the check-in date of the booking or the date in which the guest verification
+          started, depending on the billing settings of the host.