65 lines
2.0 KiB
Python
65 lines
2.0 KiB
Python
from owrx.config.core import CoreConfig
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from owrx.config.migration import Migrator
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from owrx.property import PropertyLayer
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from owrx.jsons import Encoder
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import json
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class DynamicConfig(PropertyLayer):
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_deleted = object()
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def __init__(self):
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super().__init__()
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try:
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with open(DynamicConfig._getSettingsFile(), "r") as f:
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for k, v in json.load(f).items():
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if isinstance(v, dict):
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self[k] = DynamicConfig._toLayer(v)
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else:
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self[k] = v
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except FileNotFoundError:
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pass
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Migrator.migrate(self)
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@staticmethod
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def _toLayer(dictionary: dict):
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layer = PropertyLayer()
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for k, v in dictionary.items():
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if isinstance(v, dict):
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layer[k] = DynamicConfig._toLayer(v)
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else:
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layer[k] = v
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return layer
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@staticmethod
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def _getSettingsFile():
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coreConfig = CoreConfig()
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return "{data_directory}/settings.json".format(data_directory=coreConfig.get_data_directory())
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def store(self):
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# don't write directly to file to avoid corruption on exceptions
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jsonContent = json.dumps(self.__dict__(), indent=4, cls=Encoder)
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with open(DynamicConfig._getSettingsFile(), "w") as file:
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file.write(jsonContent)
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def __delitem__(self, key):
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self.__setitem__(key, DynamicConfig._deleted)
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def __contains__(self, item):
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if not super().__contains__(item):
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return False
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if super().__getitem__(item) is DynamicConfig._deleted:
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return False
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return True
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def __getitem__(self, item):
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if self.__contains__(item):
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return super().__getitem__(item)
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raise KeyError('Key "{key}" does not exist'.format(key=item))
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def __dict__(self):
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return {k: v for k, v in super().__dict__().items() if v is not DynamicConfig._deleted}
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def keys(self):
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return [k for k in super().keys() if self.__contains__(k)]
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