VoteAggregation return total votes and the score

src/main/kotlin/fr/dcproject/entity/Votable.kt

@@ -5,5 +5,5 @@ interface Votable {
 }
 
 class VotableImp : Votable {
-    override var votes: VoteAggregation = VoteAggregation(0, 0, 0)
+    override var votes: VoteAggregation = VoteAggregation()
 }

src/main/kotlin/fr/dcproject/entity/VoteAggregation.kt

@@ -7,6 +7,10 @@ import fr.postgresjson.entity.EntityUpdatedAtImp
 open class VoteAggregation(
     val up: Int,
     val neutral: Int,
-    val down: Int
+    val down: Int,
+    val total: Int,
+    val score: Int
 ) : EntityI,
-    EntityUpdatedAt by EntityUpdatedAtImp()
+    EntityUpdatedAt by EntityUpdatedAtImp() {
+    constructor() : this(0, 0, 0, 0, 0)
+}

src/main/resources/openApi.yaml

@@ -1153,6 +1153,11 @@ components:
             down:
               type: number
               minimum: 0
+            total:
+              type: number
+              minimum: 0
+            score:
+              type: number
         - $ref: '#/components/schemas/UpdatedAt'
     Votable:
       type: object

src/main/resources/sql/functions/vote/count_vote.sql

@@ -3,7 +3,9 @@ create or replace function count_vote(_target_id uuid, out resource json)
 $$
 declare
     agg jsonb;
-    empty jsonb = '{"down":0,"neutral":0,"up":0}'::jsonb;
+    empty jsonb = '{"down":0,"neutral":0,"up":0,"total":0,"score":0}'::jsonb;
+    score int;
+    total int;
 begin
     select jsonb_object_agg(t.label, t.total)
     into agg
@@ -21,8 +23,17 @@ begin
         order by v.note
     ) t;
 
-    resource = coalesce(agg, empty) || jsonb_build_object('updated_at', now());
+    agg = empty || coalesce(agg, empty);
+    score = ((agg->>'up')::int - (agg->>'down')::int);
+    total = ((agg->>'up')::int + (agg->>'down')::int + (agg->>'neutral')::int);
+
+    resource = agg ||
+               jsonb_build_object('updated_at', now()) ||
+               jsonb_build_object('total', total) ||
+               jsonb_build_object('score', score);
 end;
 $$;
 
--- drop function if exists count_vote(uuid);
+-- drop function if exists count_vote(uuid);
+
+select * from count_vote('ced1563f-ecf5-4f11-8518-8aeceff3c13a');