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import sys
from typing import Iterable, Optional, Any, Dict, Union, Set
from fakeredis import _msgs as msgs
from fakeredis._helpers import current_time
if sys.version_info >= (3, 11):
from typing import Self
else:
from typing_extensions import Self
class ExpiringMembersSet:
DECODE_ERROR = msgs.INVALID_HASH_MSG
redis_type = b"set"
def __init__(self, values: Dict[bytes, Optional[int]] = None, *args: Any, **kwargs: Any) -> None:
super().__init__(*args, **kwargs)
self._values: Dict[bytes, Optional[int]] = values or dict()
def _expire_members(self) -> None:
removed = []
now = current_time()
for k in self._values:
if self._values[k] is not None and self._values[k] < now:
self._values.pop(k, None)
removed.append(k)
def set_member_expireat(self, key: bytes, when_ms: int) -> int:
now = current_time()
if when_ms <= now:
self._values.pop(key, None)
return 2
self._values[key] = when_ms
return 1
def clear_key_expireat(self, key: bytes) -> bool:
return self._values.pop(key, None) is not None
def get_key_expireat(self, key: bytes) -> Optional[int]:
self._expire_members()
return self._values.get(key, None)
def __contains__(self, key: bytes) -> bool:
self._expire_members()
return self._values.__contains__(key)
def __delitem__(self, key: bytes) -> None:
self._values.pop(key, None)
def __len__(self) -> int:
return len(self._values)
def __iter__(self) -> Iterable[bytes]:
return iter({k for k in self._values if self._values[k] is None or self._values[k] >= current_time()})
def __get__(self, instance, owner=None) -> Set[bytes]:
self._expire_members()
return set(self._values.keys())
def __sub__(self, other: Self) -> Self:
return ExpiringMembersSet({k: v for k, v in self._values.items() if k not in other._values})
def __and__(self, other: Self) -> Self:
return ExpiringMembersSet({k: v for k, v in self._values.items() if k in other._values})
def __or__(self, other: Self) -> Self:
return ExpiringMembersSet({k: v for k, v in self._values.items()}).update(other)
def update(self, other: Union[Self, Iterable[bytes]]) -> Self:
self._expire_members()
if isinstance(other, ExpiringMembersSet):
self._values.update(other._values)
return self
for value in other:
self._values[value] = None
return self
def discard(self, key: bytes) -> None:
self._values.pop(key, None)
def remove(self, key: bytes) -> None:
self._values.pop(key)
def add(self, key: bytes) -> None:
self._values[key] = None
def copy(self) -> Self:
return ExpiringMembersSet(self._values.copy())
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