Stage 8

src/handlers/handler_admin_subscriptions.erl

@@ -0,0 +1,82 @@
+-module(handler_admin_subscriptions).
+-include("records.hrl").
+
+-export([init/2]).
+
+init(Req, Opts) ->
+  handle(Req, Opts).
+
+handle(Req, _Opts) ->
+  case cowboy_req:method(Req) of
+    <<"GET">> -> list_subscriptions(Req);
+    <<"DELETE">> -> cancel_subscription(Req);
+    _ -> send_error(Req, 405, <<"Method not allowed">>)
+  end.
+
+%% GET /v1/admin/subscriptions - список всех подписок
+list_subscriptions(Req) ->
+  case handler_auth:authenticate(Req) of
+    {ok, AdminId, Req1} ->
+      case is_admin(AdminId) of
+        true ->
+          {ok, Subscriptions} = core_subscription:list_all(),
+          Response = [subscription_to_json(S) || S <- Subscriptions],
+          send_json(Req1, 200, Response);
+        false ->
+          send_error(Req1, 403, <<"Admin access required">>)
+      end;
+    {error, Code, Message, Req1} ->
+      send_error(Req1, Code, Message)
+  end.
+
+%% DELETE /v1/admin/subscriptions/:id - отменить подписку
+cancel_subscription(Req) ->
+  case handler_auth:authenticate(Req) of
+    {ok, AdminId, Req1} ->
+      SubscriptionId = cowboy_req:binding(id, Req1),
+      case logic_subscription:cancel_subscription(AdminId, SubscriptionId) of
+        {ok, Subscription} ->
+          Response = subscription_to_json(Subscription),
+          send_json(Req1, 200, Response);
+        {error, access_denied} ->
+          send_error(Req1, 403, <<"Admin access required">>);
+        {error, not_found} ->
+          send_error(Req1, 404, <<"Subscription not found">>);
+        {error, _} ->
+          send_error(Req1, 500, <<"Internal server error">>)
+      end;
+    {error, Code, Message, Req1} ->
+      send_error(Req1, Code, Message)
+  end.
+
+%% Вспомогательные функции
+is_admin(UserId) ->
+  case core_user:get_by_id(UserId) of
+    {ok, User} -> User#user.role =:= admin;
+    _ -> false
+  end.
+
+subscription_to_json(Subscription) ->
+  #{
+    id => Subscription#subscription.id,
+    user_id => Subscription#subscription.user_id,
+    plan => Subscription#subscription.plan,
+    status => Subscription#subscription.status,
+    trial_used => Subscription#subscription.trial_used,
+    started_at => datetime_to_iso8601(Subscription#subscription.started_at),
+    expires_at => datetime_to_iso8601(Subscription#subscription.expires_at),
+    created_at => datetime_to_iso8601(Subscription#subscription.created_at),
+    updated_at => datetime_to_iso8601(Subscription#subscription.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).