HG-299: Introduce interaction with cash register service

apps/hellgate/include/cashreg_events.hrl

@@ -0,0 +1,55 @@
+-ifndef(__hellgate_cashreg_events__).
+-define(__hellgate_cashreg_events__, 42).
+
+% Events
+
+-define(created(ReceiptParams, Proxy),
+    {created, #cashreg_proc_ReceiptCreated{
+        receipt_params = ReceiptParams,
+        proxy = Proxy
+    }}
+).
+
+-define(registered(Receipt),
+    {registered, #cashreg_proc_ReceiptRegistered{receipt = Receipt}}).
+
+-define(failed(Failure),
+    {failed, #cashreg_proc_ReceiptFailed{failure = Failure}}).
+
+-define(session_changed(Payload),
+    {session_changed, #cashreg_proc_ReceiptSessionChange{
+        payload = Payload
+    }}
+).
+
+%% Sessions
+
+-define(session_started(),
+    {session_started,
+        #cashreg_proc_SessionStarted{}
+    }
+).
+-define(session_finished(Result),
+    {session_finished,
+        #cashreg_proc_SessionFinished{result = Result}
+    }
+).
+-define(session_suspended(Tag),
+    {session_suspended,
+        #cashreg_proc_SessionSuspended{tag = Tag}
+    }
+).
+-define(proxy_st_changed(ProxySt),
+    {session_proxy_state_changed,
+        #cashreg_proc_SessionProxyStateChanged{proxy_state = ProxySt}
+    }
+).
+
+-define(session_succeeded(),
+    {succeeded, #cashreg_proc_SessionSucceeded{}}
+).
+-define(session_failed(Failure),
+    {failed, #cashreg_proc_SessionFailed{failure = Failure}}
+).
+
+-endif.

apps/hellgate/src/hellgate.erl

@@ -40,7 +40,8 @@ init([]) ->
         hg_invoice,
         hg_invoice_template,
         hg_customer,
-        hg_recurrent_paytool
+        hg_recurrent_paytool,
+        hg_cashreg_controller
     ],
     {ok, {
         #{strategy => one_for_all, intensity => 6, period => 30},
@@ -67,7 +68,8 @@ get_api_child_spec(MachineHandlers) ->
                 construct_service_handler(recurrent_paytool            , hg_recurrent_paytool  ),
                 construct_service_handler(recurrent_paytool_eventsink  , hg_recurrent_paytool  ),
                 construct_service_handler(proxy_host_provider          , hg_proxy_host_provider),
-                construct_service_handler(payment_processing_eventsink , hg_event_sink_handler )
+                construct_service_handler(payment_processing_eventsink , hg_event_sink_handler ),
+                construct_service_handler(cashreg                      , hg_cashreg_controller )
             ]
         }
     ).