Move initial FSM trigger to backend

tfw/components/frontend/frontend_proxy_handler.py

@@ -4,7 +4,7 @@ from .message_storage import FrontendMessageStorage
 
 
 class FrontendProxyHandler:
-    keys = ['console', 'dashboard', 'message', 'ide.read', 'recover']
+    keys = ['console', 'dashboard', 'frontend.ready', 'message', 'ide.read']
 
     def __init__(self):
         self.connector = None
@@ -15,7 +15,7 @@ class FrontendProxyHandler:
 
     def handle_event(self, message, _):
         self._frontend_message_storage.save_message(message)
-        if message['key'] == 'recover':
+        if message['key'] == 'frontend.ready':
             self.recover_frontend()
         if self._filter_message(message):
             self.send_message(message)

tfw/components/fsm/fsm_handler.py

@@ -11,16 +11,21 @@ LOG = logging.getLogger(__name__)
 class FSMHandler:
     keys = ['fsm']
 
-    def __init__(self, *, fsm_type):
+    def __init__(self, *, fsm_type, initial_trigger):
         self.fsm = fsm_type()
         self._fsm_updater = FSMUpdater(self.fsm)
         self.auth_key = KeyManager().auth_key
+        self.initial_trigger = initial_trigger
 
         self.command_handlers = {
+            'frontend.ready': self.handle_ready,
             'fsm.step'   : self.handle_step,
             'fsm.announce' : self.handle_announce
         }
 
+    def start(self):
+        self.connector.subscribe('frontend.ready')
+
     def handle_event(self, message, connector):
         try:
             message = self.command_handlers[message['key']](message)
@@ -31,6 +36,11 @@ class FSMHandler:
         except KeyError:
             LOG.error('IGNORING MESSAGE: Invalid message received: %s', message)
 
+    def handle_ready(self, message):
+        self.fsm.step(self.initial_trigger)
+        self.connector.unsubscribe('frontend.ready')
+        return message
+
     def handle_step(self, message):
         if self.fsm.step(message['trigger']):
             return message