Stage 8

2026-04-21 16:35:05 +03:00
parent a4a7daa5e0
commit 3b73439b49
11 changed files with 981 additions and 2 deletions
--- a/src/handlers/handler_subscription.erl
+++ b/src/handlers/handler_subscription.erl
@@ -0,0 +1,102 @@
+-module(handler_subscription).
+-include("records.hrl").
+
+-export([init/2]).
+
+init(Req, Opts) ->
+  handle(Req, Opts).
+
+handle(Req, _Opts) ->
+  case cowboy_req:method(Req) of
+    <<"GET">> -> get_subscription(Req);
+    <<"POST">> -> create_subscription(Req);
+    _ -> send_error(Req, 405, <<"Method not allowed">>)
+  end.
+
+%% GET /v1/subscription - получить подписку текущего пользователя
+get_subscription(Req) ->
+  case handler_auth:authenticate(Req) of
+    {ok, UserId, Req1} ->
+      case logic_subscription:get_user_subscription(UserId) of
+        {ok, Subscription} ->
+          send_json(Req1, 200, Subscription);
+        {error, _} ->
+          send_error(Req1, 500, <<"Internal server error">>)
+      end;
+    {error, Code, Message, Req1} ->
+      send_error(Req1, Code, Message)
+  end.
+
+%% POST /v1/subscription - активировать подписку
+create_subscription(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
+            #{<<"action">> := <<"start_trial">>} ->
+              case logic_subscription:start_trial(UserId) of
+                {ok, Subscription} ->
+                  Response = subscription_to_json(Subscription),
+                  send_json(Req2, 201, Response);
+                {error, already_has_subscription} ->
+                  send_error(Req2, 409, <<"Already has active subscription">>);
+                {error, _} ->
+                  send_error(Req2, 500, <<"Internal server error">>)
+              end;
+            #{<<"action">> := <<"activate">>, <<"plan">> := PlanBin} ->
+              Plan = parse_plan(PlanBin),
+              PaymentInfo = maps:get(<<"payment_info">>, Decoded, #{}),
+              case logic_subscription:activate_subscription(UserId, Plan, PaymentInfo) of
+                {ok, Subscription} ->
+                  Response = subscription_to_json(Subscription),
+                  send_json(Req2, 201, Response);
+                {error, payment_failed} ->
+                  send_error(Req2, 402, <<"Payment failed">>);
+                {error, _} ->
+                  send_error(Req2, 500, <<"Internal server error">>)
+              end;
+            _ ->
+              send_error(Req2, 400, <<"Invalid action. Use 'start_trial' or 'activate'">>)
+          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.
+
+%% Вспомогательные функции
+parse_plan(<<"monthly">>) -> monthly;
+parse_plan(<<"quarterly">>) -> quarterly;
+parse_plan(<<"biannual">>) -> biannual;
+parse_plan(<<"annual">>) -> annual;
+parse_plan(_) -> monthly.
+
+subscription_to_json(Subscription) when is_tuple(Subscription) ->
+  #{
+    id => Subscription#subscription.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)
+  };
+subscription_to_json(Subscription) when is_map(Subscription) ->
+  Subscription.
+
+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).