40 lines
968 B
Python
40 lines
968 B
Python
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import time
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import json
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from hashlib import sha256
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from collections import UserDict
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class TimestampedPreferences(UserDict):
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def __init__(self, d: dict = None):
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super().__init__()
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if d is not None:
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self.data = d.copy()
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def __getitem__(self, key):
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return self.data[key]['value']
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def __setitem__(self, key, value):
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self.data[key] = {
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'value': value,
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'ts': time.time()
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}
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def __repr__(self):
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return repr(self.to_dict_without_ts())
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def to_dict_without_ts(self):
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return {
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key: value['value'] for key, value in self.data.items()
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}
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@property
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def hash(self):
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return sha256(json.dumps(self.data).encode()).digest()
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def merge(self, other: dict):
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for key, value in other.items():
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if key in self.data and value['ts'] < self.data[key]['ts']:
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continue
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self.data[key] = value
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