Merge branch 'integrationTesting' into B-21557-INT-Estimated-Price

migrations/app/migrations_manifest.txt

@@ -1059,3 +1059,4 @@
 20241217180136_add_AK_zips_to_zip3_distances.up.sql
 20241218201833_add_PPPO_BASE_ELIZABETH.up.sql
 20241220171035_add_additional_AK_zips_to_zip3_distances.up.sql
+20241220213134_add_destination_gbloc_db_function.up.sql

migrations/app/schema/20241220213134_add_destination_gbloc_db_function.up.sql

@@ -0,0 +1,90 @@
+-- this function will handle getting the destination GBLOC associated with a shipment's destination address
+-- this only applies to OCONUS destination addresses on a shipment, but this can also checks domestic shipments
+CREATE OR REPLACE FUNCTION get_destination_gbloc_for_shipment(shipment_id UUID)
+RETURNS TEXT AS $$
+DECLARE
+    service_member_affiliation TEXT;
+    zip TEXT;
+    gbloc_result TEXT;
+    alaska_zone_ii BOOLEAN;
+    market_code TEXT;
+BEGIN
+    -- get the shipment's market code to determine conditionals
+    SELECT ms.market_code
+    INTO market_code
+    FROM mto_shipments ms
+    WHERE ms.id = shipment_id;
+
+    -- if it's a domestic shipment, use postal_code_to_gblocs
+    IF market_code = 'd' THEN
+        SELECT upc.uspr_zip_id
+        INTO zip
+        FROM addresses a
+        JOIN us_post_region_cities upc ON a.us_post_region_cities_id = upc.id
+        WHERE a.id = (SELECT destination_address_id FROM mto_shipments WHERE id = shipment_id);
+
+        SELECT gbloc
+        INTO gbloc_result
+        FROM postal_code_to_gblocs
+        WHERE postal_code = zip
+        LIMIT 1;
+
+        IF gbloc_result IS NULL THEN
+            RETURN NULL;
+        END IF;
+
+        RETURN gbloc_result;
+
+    ELSEIF market_code = 'i' THEN
+        -- if it's 'i' then we need to check for some exceptions
+        SELECT sm.affiliation
+        INTO service_member_affiliation
+        FROM service_members sm
+        JOIN orders o ON o.service_member_id = sm.id
+        JOIN moves m ON m.orders_id = o.id
+        JOIN mto_shipments ms ON ms.move_id = m.id
+        WHERE ms.id = shipment_id;
+
+        -- if the service member is USMC, return 'USMC'
+        IF service_member_affiliation = 'MARINES' THEN
+            RETURN 'USMC';
+        END IF;
+
+        SELECT upc.uspr_zip_id
+        INTO zip
+        FROM addresses a
+        JOIN us_post_region_cities upc ON a.us_post_region_cities_id = upc.id
+        WHERE a.id = (SELECT destination_address_id FROM mto_shipments WHERE id = shipment_id);
+
+        -- check if the postal code (uspr_zip_id) is in Alaska Zone II
+        SELECT EXISTS (
+            SELECT 1
+            FROM re_oconus_rate_areas ro
+            JOIN re_rate_areas ra ON ro.rate_area_id = ra.id
+            JOIN us_post_region_cities upc ON upc.id = ro.us_post_region_cities_id
+            WHERE upc.uspr_zip_id = zip
+              AND ra.code = 'US8190100'  -- Alaska Zone II Code
+        )
+        INTO alaska_zone_ii;
+
+        -- if the service member is USAF or USSF and the address is in Alaska Zone II, return 'MBFL'
+        IF (service_member_affiliation = 'AIR_FORCE' OR service_member_affiliation = 'SPACE_FORCE') AND alaska_zone_ii THEN
+            RETURN 'MBFL';
+        END IF;
+
+        -- for all other branches except USMC, return the gbloc from the postal_code_to_gbloc table based on the zip
+        SELECT gbloc
+        INTO gbloc_result
+        FROM postal_code_to_gblocs
+        WHERE postal_code = zip
+        LIMIT 1;
+
+        IF gbloc_result IS NULL THEN
+            RETURN NULL;
+        END IF;
+
+        RETURN gbloc_result;
+    END IF;
+
+END;
+$$ LANGUAGE plpgsql;