Stage 3.4

2026-04-20 16:40:44 +03:00
parent 42a047a938
commit b24cbc97f3
25 changed files with 2520 additions and 123 deletions
--- a/src/handlers/handler_bookings.erl
+++ b/src/handlers/handler_bookings.erl
@@ -0,0 +1,87 @@
+-module(handler_bookings).
+-include("records.hrl").
+
+-export([init/2]).
+
+init(Req, Opts) ->
+  handle(Req, Opts).
+
+handle(Req, _Opts) ->
+  case cowboy_req:method(Req) of
+    <<"POST">> -> create_booking(Req);
+    <<"GET">> -> list_bookings(Req);
+    _ -> send_error(Req, 405, <<"Method not allowed">>)
+  end.
+
+%% POST /v1/events/:id/bookings - создание бронирования (запись на событие)
+create_booking(Req) ->
+  case handler_auth:authenticate(Req) of
+    {ok, UserId, Req1} ->
+      EventId = cowboy_req:binding(id, Req1),
+      case logic_booking:create_booking(UserId, EventId) of
+        {ok, Booking} ->
+          Response = booking_to_json(Booking),
+          send_json(Req1, 201, Response);
+        {error, already_booked} ->
+          send_error(Req1, 409, <<"Already booked">>);
+        {error, event_full} ->
+          send_error(Req1, 400, <<"Event is full">>);
+        {error, event_not_active} ->
+          send_error(Req1, 400, <<"Event is not active">>);
+        {error, access_denied} ->
+          send_error(Req1, 403, <<"Access denied">>);
+        {error, not_found} ->
+          send_error(Req1, 404, <<"Event not found">>);
+        {error, _} ->
+          send_error(Req1, 500, <<"Internal server error">>)
+      end;
+    {error, Code, Message, Req1} ->
+      send_error(Req1, Code, Message)
+  end.
+
+%% GET /v1/events/:id/bookings - список бронирований события (для владельца)
+list_bookings(Req) ->
+  case handler_auth:authenticate(Req) of
+    {ok, UserId, Req1} ->
+      EventId = cowboy_req:binding(id, Req1),
+      case logic_booking:list_event_bookings(UserId, EventId) of
+        {ok, Bookings} ->
+          Response = [booking_to_json(B) || B <- Bookings],
+          send_json(Req1, 200, Response);
+        {error, access_denied} ->
+          send_error(Req1, 403, <<"Access denied">>);
+        {error, not_found} ->
+          send_error(Req1, 404, <<"Event not found">>);
+        {error, _} ->
+          send_error(Req1, 500, <<"Internal server error">>)
+      end;
+    {error, Code, Message, Req1} ->
+      send_error(Req1, Code, Message)
+  end.
+
+%% Вспомогательные функции
+booking_to_json(Booking) ->
+  #{
+    id => Booking#booking.id,
+    event_id => Booking#booking.event_id,
+    user_id => Booking#booking.user_id,
+    status => Booking#booking.status,
+    confirmed_at => case Booking#booking.confirmed_at of
+                      undefined -> null;
+                      Dt -> datetime_to_iso8601(Dt)
+                    end,
+    created_at => datetime_to_iso8601(Booking#booking.created_at),
+    updated_at => datetime_to_iso8601(Booking#booking.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).