Source code for app.portfolio.collections.proxy.mapping

# SPDX-License-Identifier: GPLv3-or-later
# Copyright © 2025 pygaindalf Rui Pinheiro

from abc import ABCMeta
from collections.abc import Iterator, Mapping, MutableMapping
from typing import override

from .collection import ProxyCollection, ProxyMutableCollection




class ProxyMapping[
    K,
    V_Item: object,
    V_Proxy: object,
](
    ProxyCollection[V_Item, V_Proxy, Mapping[K, V_Item]],
    Mapping[K, V_Proxy],
    metaclass=ABCMeta,
):
    @override
    def __getitem__(self, key: K) -> V_Proxy:
        item = self._get_field()[key]
        return self._convert_item_to_proxy(item)

    @override
    def __iter__(self) -> Iterator[K]:
        return iter(self._get_field())





class ProxyMutableMapping[
    K,
    V_Item: object,
    V_Proxy: object,
](
    ProxyMapping[K, V_Item, V_Proxy],
    ProxyMutableCollection[V_Item, V_Proxy, Mapping[K, V_Item], MutableMapping[K, V_Item]],
    MutableMapping[K, V_Proxy],
    metaclass=ABCMeta,
):
    @override
    def __setitem__(self, key: K, value: V_Proxy) -> None:
        item = self._convert_proxy_to_item(value)
        self._get_mut_field()[key] = item

    @override
    def __delitem__(self, key: K) -> None:
        del self._get_mut_field()[key]