def __init__(self,
_rt=rt.Mock(),
mock_streams=True,
config_file='saved_state.json'):
self._rt = _rt
self._mock_hw = type(_rt) is rt.Mock
self._mock_streams = mock_streams
"""Intitializes the mock system to to base configuration """
# test open the config file, this will throw an exception if there are issues writing to the file
with open(
config_file, 'a'
): # use append more to make sure we have read and write permissions, but won't overrite the file
pass
self.config_file = config_file
self.backup_config_file = config_file + '.bak'
self.config_file_valid = True # initially we assume the config file is valid
# try to load the config file or its backup
config_paths = [self.config_file, self.backup_config_file]
errors = []
loaded_config = False
for cfg_path in config_paths:
try:
if os.path.exists(cfg_path):
with open(cfg_path, 'r') as cfg:
self.status = json.load(cfg)
loaded_config = True
break
else:
errors.append(
'config file "{}" does not exist'.format(cfg_path))
except Exception as e:
self.config_file_valid = False # mark the config file as invalid so we don't try to back it up
errors.append('error loading config file: {}'.format(e))
if not loaded_config:
print(errors[0])
print('using default config')
self.status = deepcopy(
self._DEFAULT_CONFIG
) # only make a copy of the default config so we can make changes to it
self.save()
# configure all streams into a known state
self.streams = {}
for stream in self.status['streams']:
self.streams[stream['id']] = streams.build_stream(
stream, self._mock_streams)
# configure all sources so that they are in a known state
for src in self.status['sources']:
self.set_source(src['id'], input=src['input'], force_update=True)
# configure all of the zones so that they are in a known state
# we mute all zones on startup to keep audio from playing immediately at startup
for z in self.status['zones']:
# TODO: disbale zones that are not found
self.set_zone(z['id'],
source_id=z['source_id'],
mute=True,
vol=z['vol'],
force_update=True)
# configure all of the groups (some fields may need to be updated)
self._update_groups()
def create_app(mock_ctrl=False,
mock_streams=False,
config_file='config/house.json'):
if mock_ctrl:
app.api = ctrl.Api(rt.Mock(),
mock_streams=mock_streams,
config_file=config_file)
else:
app.api = ctrl.Api(rt.Rpi(),
mock_streams=mock_streams,
config_file=config_file)
return app
def create_app(mock=False, config_file='config/house.json'):
if mock:
app.api = ctrl.Api(rt.Mock(), config_file)
else:
app.api = ctrl.Api(rt.Rpi(), config_file)
return app
def reinit(self, settings: models.AppSettings = models.AppSettings(), change_notifier: Optional[Callable[[models.Status], None]] = None, config: Optional[models.Status] = None):
""" Initialize or Reinitialize the controller
Intitializes the system to to base configuration """
self._change_notifier = change_notifier
self._mock_hw = settings.mock_ctrl
self._mock_streams = settings.mock_streams
self._save_timer = None
self._delay_saves = settings.delay_saves
self._settings = settings
# Create firmware interface. If one already exists delete then re-init.
if self._initialized:
# we need to make sure to mute every zone before resetting the fw
zones_update = models.MultiZoneUpdate(zones=[z.id for z in self.status.zones], update=models.ZoneUpdate(mute=True))
self.set_zones(zones_update, force_update=True, internal=True)
try:
del self._rt # remove the low level hardware connection
except AttributeError:
pass
self._rt = rt.Mock() if settings.mock_ctrl else rt.Rpi() # reset the fw
# test open the config file, this will throw an exception if there are issues writing to the file
with open(settings.config_file, 'a'): # use append more to make sure we have read and write permissions, but won't overrite the file
pass
self.config_file = settings.config_file
self.backup_config_file = settings.config_file + '.bak'
self.config_file_valid = True # initially we assume the config file is valid
errors = []
if config:
self.status = config
loaded_config = True
else:
# try to load the config file or its backup
config_paths = [self.config_file, self.backup_config_file]
loaded_config = False
for cfg_path in config_paths:
try:
if os.path.exists(cfg_path):
self.status = models.Status.parse_file(cfg_path)
loaded_config = True
break
errors.append('config file "{}" does not exist'.format(cfg_path))
except Exception as exc:
self.config_file_valid = False # mark the config file as invalid so we don't try to back it up
errors.append('error loading config file: {}'.format(exc))
if not loaded_config:
print(errors[0])
print('using default config')
self.status = models.Status.parse_obj(self.DEFAULT_CONFIG)
self.save()
self.status.info = models.Info(
mock_ctrl=self._mock_hw,
mock_streams=self._mock_streams,
config_file=self.config_file,
version=utils.detect_version()
)
# TODO: detect missing sources
# detect missing zones
if self._mock_hw:
# only allow 6 zones when mocked to simplify testing
# add more if needed by specifying them in the config
potential_zones = range(6)
else:
potential_zones = range(rt.MAX_ZONES)
added_zone = False
for zid in potential_zones:
_, zone = utils.find(self.status.zones, zid)
if zone is None and self._rt.exists(zid):
added_zone = True
self.status.zones.append(models.Zone(id=zid, name=f'Zone {zid+1}'))
# save new config if zones were added
if added_zone:
self.save()
# configure all streams into a known state
self.streams: Dict[int, amplipi.streams.AnyStream] = {}
failed_streams: List[int] = []
for stream in self.status.streams:
if stream.id:
try:
self.streams[stream.id] = amplipi.streams.build_stream(stream, self._mock_streams)
except Exception as exc:
print(f"Failed to create '{stream.name}' stream: {exc}")
failed_streams.append(stream.id)
# only keep the successful streams, this fixes a common problem of loading a stream that doesn't exist in the current developement
# [:] does an in-place modification to the list suggested by https://stackoverflow.com/a/1208792/1110730
self.status.streams[:] = [s for s in self.status.streams if s.id not in failed_streams]
# configure all sources so that they are in a known state
for src in self.status.sources:
if src.id is not None:
update = models.SourceUpdate(input=src.input)
self.set_source(src.id, update, force_update=True, internal=True)
# configure all of the zones so that they are in a known state
# we mute all zones on startup to keep audio from playing immediately at startup
for zone in self.status.zones:
# TODO: disable zones that are not found
# we likely need an additional field for this, maybe auto-disabled?
zone_update = models.ZoneUpdate(source_id=zone.source_id, mute=True, vol=zone.vol)
self.set_zone(zone.id, zone_update, force_update=True, internal=True)
# configure all of the groups (some fields may need to be updated)
self._update_groups()
