Stage 6

src/handlers/handler_report_by_id.erl

@@ -0,0 +1,83 @@
+-module(handler_report_by_id).
+-include("records.hrl").
+
+-export([init/2]).
+
+init(Req, Opts) ->
+  handle(Req, Opts).
+
+handle(Req, _Opts) ->
+  case cowboy_req:method(Req) of
+    <<"PUT">> -> resolve_report(Req);
+    _ -> send_error(Req, 405, <<"Method not allowed">>)
+  end.
+
+%% PUT /v1/admin/reports/:id - рассмотрение жалобы
+resolve_report(Req) ->
+  case handler_auth:authenticate(Req) of
+    {ok, AdminId, Req1} ->
+      ReportId = cowboy_req:binding(id, Req1),
+      {ok, Body, Req2} = cowboy_req:read_body(Req1),
+      try jsx:decode(Body, [return_maps]) of
+        #{<<"action">> := Action} ->
+          ActionAtom = case Action of
+                         <<"review">> -> reviewed;
+                         <<"dismiss">> -> dismissed;
+                         _ -> undefined
+                       end,
+          case ActionAtom of
+            undefined ->
+              send_error(Req2, 400, <<"Invalid action. Use 'review' or 'dismiss'">>);
+            _ ->
+              case logic_moderation:resolve_report(AdminId, ReportId, ActionAtom) of
+                {ok, Report} ->
+                  Response = report_to_json(Report),
+                  send_json(Req2, 200, Response);
+                {error, access_denied} ->
+                  send_error(Req2, 403, <<"Admin access required">>);
+                {error, already_resolved} ->
+                  send_error(Req2, 409, <<"Report already resolved">>);
+                {error, not_found} ->
+                  send_error(Req2, 404, <<"Report not found">>);
+                {error, _} ->
+                  send_error(Req2, 500, <<"Internal server error">>)
+              end
+          end;
+        _ ->
+          send_error(Req2, 400, <<"Missing action field">>)
+      catch
+        _:_ ->
+          send_error(Req2, 400, <<"Invalid JSON format">>)
+      end;
+    {error, Code, Message, Req1} ->
+      send_error(Req1, Code, Message)
+  end.
+
+%% Вспомогательные функции
+report_to_json(Report) ->
+  #{
+    id => Report#report.id,
+    reporter_id => Report#report.reporter_id,
+    target_type => Report#report.target_type,
+    target_id => Report#report.target_id,
+    reason => Report#report.reason,
+    status => Report#report.status,
+    created_at => datetime_to_iso8601(Report#report.created_at),
+    resolved_at => case Report#report.resolved_at of
+                     undefined -> null;
+                     Dt -> datetime_to_iso8601(Dt)
+                   end,
+    resolved_by => Report#report.resolved_by
+  }.
+
+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).