Stage 5

2026-04-21 10:15:17 +03:00
parent 19f82768e4
commit ee8928fa5f
13 changed files with 1472 additions and 1 deletions
@@ -0,0 +1,107 @@
+-module(handler_reviews).
+-include("records.hrl").
+
+-export([init/2]).
+
+init(Req, Opts) ->
+  handle(Req, Opts).
+
+handle(Req, _Opts) ->
+  case cowboy_req:method(Req) of
+    <<"POST">> -> create_review(Req);
+    <<"GET">> -> list_reviews(Req);
+    _ -> send_error(Req, 405, <<"Method not allowed">>)
+  end.
+
+%% POST /v1/reviews - создание отзыва
+create_review(Req) ->
+  case handler_auth:authenticate(Req) of
+    {ok, UserId, Req1} ->
+      {ok, Body, Req2} = cowboy_req:read_body(Req1),
+      try jsx:decode(Body, [return_maps]) of
+        Decoded when is_map(Decoded) ->
+          case Decoded of
+            #{<<"target_type">> := TargetTypeBin,
+              <<"target_id">> := TargetId,
+              <<"rating">> := Rating,
+              <<"comment">> := Comment} ->
+              TargetType = parse_target_type(TargetTypeBin),
+              case logic_review:create_review(UserId, TargetType, TargetId, Rating, Comment) of
+                {ok, Review} ->
+                  Response = review_to_json(Review),
+                  send_json(Req2, 201, Response);
+                {error, already_reviewed} ->
+                  send_error(Req2, 409, <<"Already reviewed">>);
+                {error, cannot_review} ->
+                  send_error(Req2, 403, <<"Cannot review this target">>);
+                {error, target_not_found} ->
+                  send_error(Req2, 404, <<"Target not found">>);
+                {error, _} ->
+                  send_error(Req2, 500, <<"Internal server error">>)
+              end;
+            _ ->
+              send_error(Req2, 400, <<"Missing required fields">>)
+          end;
+        _ ->
+          send_error(Req2, 400, <<"Invalid JSON">>)
+      catch
+        _:_ ->
+          send_error(Req2, 400, <<"Invalid JSON format">>)
+      end;
+    {error, Code, Message, Req1} ->
+      send_error(Req1, Code, Message)
+  end.
+
+%% GET /v1/reviews - список отзывов для цели
+list_reviews(Req) ->
+  case handler_auth:authenticate(Req) of
+    {ok, UserId, Req1} ->
+      Qs = cowboy_req:parse_qs(Req1),
+      case {proplists:get_value(<<"target_type">>, Qs), proplists:get_value(<<"target_id">>, Qs)} of
+        {undefined, _} ->
+          send_error(Req1, 400, <<"Missing target_type">>);
+        {_, undefined} ->
+          send_error(Req1, 400, <<"Missing target_id">>);
+        {TargetTypeBin, TargetId} ->
+          TargetType = parse_target_type(TargetTypeBin),
+          case logic_review:list_reviews(UserId, TargetType, TargetId) of
+            {ok, Reviews} ->
+              Response = [review_to_json(R) || R <- Reviews],
+              send_json(Req1, 200, Response);
+            {error, _} ->
+              send_error(Req1, 500, <<"Internal server error">>)
+          end
+      end;
+    {error, Code, Message, Req1} ->
+      send_error(Req1, Code, Message)
+  end.
+
+%% Вспомогательные функции
+parse_target_type(<<"event">>) -> event;
+parse_target_type(<<"calendar">>) -> calendar;
+parse_target_type(_) -> undefined.
+
+review_to_json(Review) ->
+  #{
+    id => Review#review.id,
+    user_id => Review#review.user_id,
+    target_type => Review#review.target_type,
+    target_id => Review#review.target_id,
+    rating => Review#review.rating,
+    comment => Review#review.comment,
+    status => Review#review.status,
+    created_at => datetime_to_iso8601(Review#review.created_at),
+    updated_at => datetime_to_iso8601(Review#review.updated_at)
+  }.
+
+datetime_to_iso8601({{Year, Month, Day}, {Hour, Minute, Second}}) ->
+  iolist_to_binary(io_lib:format("~4..0B-~2..0B-~2..0BT~2..0B:~2..0B:~2..0BZ",
+    [Year, Month, Day, Hour, Minute, Second])).
+
+send_json(Req, Status, Data) ->
+  Body = jsx:encode(Data),
+  cowboy_req:reply(Status, #{<<"content-type">> => <<"application/json">>}, Body, Req).
+
+send_error(Req, Status, Message) ->
+  Body = jsx:encode(#{error => Message}),
+  cowboy_req:reply(Status, #{<<"content-type">> => <<"application/json">>}, Body, Req).