"""Collection utilities — OrderedProperties.

Ported from net.i2p.util.OrderedProperties.
"""

from collections import OrderedDict


class OrderedProperties(OrderedDict):
    """Properties dict that maintains insertion order and sorts for iteration.

    When iterated (keys, items), returns entries sorted by key.
    """

    def keys(self):
        return sorted(super().keys())

    def items(self):
        return sorted(super().items(), key=lambda x: x[0])

    def values(self):
        return [v for _, v in self.items()]

    def get_property(self, key: str, default: str = "") -> str:
        return self.get(key, default)

    def set_property(self, key: str, value: str) -> None:
        self[key] = value