feat: build schedule events exclusively in playout (#2946)

### Description

Build and use the schedule events only in playout, the events generated
by legacy are not used anymore.

This ensure that we don't have to maintain 2 different implementation in
2 different languages. We still need the php function to run to make
sure the side effects of this function are executed (filling the
schedule in the DB).

playout/libretime_playout/player/fetch.py

@@ -17,7 +17,7 @@ from ..liquidsoap.client import LiquidsoapClient
 from ..liquidsoap.models import Info, MessageFormatKind, StreamPreferences, StreamState
 from .events import Events, FileEvent, FileEvents
 from .liquidsoap import Liquidsoap
-from .schedule import get_schedule, receive_schedule
+from .schedule import get_schedule
 
 logger = logging.getLogger(__name__)
 
@@ -70,7 +70,7 @@ class PypoFetch(Thread):
             logger.debug("handling event %s: %s", command, message)
 
             if command == "update_schedule":
-                self.schedule_data = receive_schedule(message["schedule"]["media"])
+                self.schedule_data = get_schedule(self.api_client)
                 self.process_schedule(self.schedule_data)
             elif command == "reset_liquidsoap_bootstrap":
                 self.set_bootstrap_variables()

playout/libretime_playout/player/schedule.py

@@ -15,7 +15,6 @@ from .events import (
     WebStreamEvent,
     datetime_to_event_key,
     event_isoparse,
-    parse_any_event,
 )
 
 
@@ -213,12 +212,3 @@ def generate_webstream_events(
         show_name=show["name"],
     )
     insert_event(events, schedule_end_event_key, stream_output_end_event)
-
-
-def receive_schedule(schedule: Dict[str, dict]) -> Events:
-    events: Dict[str, AnyEvent] = {}
-
-    for event_key, event in schedule.items():
-        events[event_key] = parse_any_event(event)
-
-    return events