feat: user API голосования за отзывы (like/dislike). Refs EventHub/EventHubBack#47

src/logic/logic_review.erl

@@ -6,6 +6,7 @@
 -export([can_review/3, update_target_rating/2, can_moderate_review/2]).
 -export([list_admin_reviews/1, bulk_update_status/2]).
 -export([list_admin_reviews/2, get_review_admin/1, update_review_admin/2]).
+-export([put_vote/3, delete_vote/2, my_vote/2, my_votes_map/1]).
 
 %% Создание отзыва
 create_review(UserId, TargetType, TargetId, Rating, Comment) ->
@@ -68,6 +69,45 @@ list_reviews(UserId, TargetType, TargetId) ->
 list_user_reviews(UserId) ->
   core_review:list_by_user(UserId).
 
+%%%-------------------------------------------------------------------
+%%% @doc Поставить / сменить голос (like | dislike).
+%%% @end
+%%%-------------------------------------------------------------------
+-spec put_vote(UserId :: binary(), ReviewId :: binary(), Value :: like | dislike) ->
+  {ok, #review{}, like | dislike} | {error, term()}.
+put_vote(UserId, ReviewId, Value) when Value =:= like; Value =:= dislike ->
+  core_review_vote:upsert(ReviewId, UserId, Value).
+
+%%%-------------------------------------------------------------------
+%%% @doc Снять голос с отзыва.
+%%% @end
+%%%-------------------------------------------------------------------
+-spec delete_vote(UserId :: binary(), ReviewId :: binary()) ->
+  {ok, #review{}, null} | {error, term()}.
+delete_vote(UserId, ReviewId) ->
+  core_review_vote:delete(ReviewId, UserId).
+
+%%%-------------------------------------------------------------------
+%%% @doc Голос текущего пользователя за отзыв (`null` если нет).
+%%% @end
+%%%-------------------------------------------------------------------
+-spec my_vote(UserId :: binary(), ReviewId :: binary()) -> like | dislike | null.
+my_vote(UserId, ReviewId) ->
+  case core_review_vote:get_by_user_and_review(UserId, ReviewId) of
+    {ok, #review_vote{value = Value}} -> Value;
+    {error, not_found} -> null
+  end.
+
+%%%-------------------------------------------------------------------
+%%% @doc Карта review_id => like | dislike для всех голосов пользователя.
+%%% @end
+%%%-------------------------------------------------------------------
+-spec my_votes_map(UserId :: binary()) -> #{binary() => like | dislike}.
+my_votes_map(UserId) ->
+  lists:foldl(fun(#review_vote{review_id = Rid, value = V}, Acc) ->
+    Acc#{Rid => V}
+              end, #{}, core_review_vote:list_by_user(UserId)).
+
 %% Обновление отзыва (только автор)
 update_review(UserId, ReviewId, Updates) ->
   io:format("Updating review ~p with ~p~n", [ReviewId, Updates]),