103 lines
3.1 KiB
Python
103 lines
3.1 KiB
Python
"""Late-binding dependency seam for extracted dashboard routers.
|
|
|
|
``web_server`` owns all dashboard state/helpers; routers under ``web_routers/`` cannot
|
|
import it at import time (web_server imports them to mount them — a cycle) and must not
|
|
copy its state (tests ``monkeypatch.setattr(web_server, ...)`` and expect that to win).
|
|
``late(name)`` / ``LateState(name)`` resolve ``web_server.<name>`` *at call time*.
|
|
"""
|
|
|
|
from __future__ import annotations
|
|
|
|
import sys
|
|
from typing import Any
|
|
|
|
|
|
def _server():
|
|
"""Return the live ``hermes_cli.web_server`` module (imported on demand)."""
|
|
mod = sys.modules.get("hermes_cli.web_server")
|
|
if mod is None: # pragma: no cover - routers are only mounted by web_server
|
|
import hermes_cli.web_server as mod # type: ignore[no-redef]
|
|
return mod
|
|
|
|
|
|
def late(name: str):
|
|
"""Late-binding proxy for a callable defined on ``web_server``."""
|
|
|
|
def _proxy(*args: Any, **kwargs: Any):
|
|
return getattr(_server(), name)(*args, **kwargs)
|
|
|
|
_proxy.__name__ = name
|
|
_proxy.__qualname__ = name
|
|
return _proxy
|
|
|
|
|
|
class LateState:
|
|
"""Live proxy for module-level state owned by ``web_server``.
|
|
|
|
Forwards attribute/item access, iteration, membership, len/truthiness, ``with`` (locks)
|
|
and rich comparisons to ``web_server.<name>`` resolved at operation time — some state is
|
|
defined *after* the router's ``include_router`` point, so a late import would miss it.
|
|
"""
|
|
|
|
__slots__ = ("_name",)
|
|
|
|
def __init__(self, name: str) -> None:
|
|
object.__setattr__(self, "_name", name)
|
|
|
|
def _target(self) -> Any:
|
|
return getattr(_server(), object.__getattribute__(self, "_name"))
|
|
|
|
def __getattr__(self, attr: str) -> Any:
|
|
return getattr(self._target(), attr)
|
|
|
|
def __getitem__(self, key: Any) -> Any:
|
|
return self._target()[key]
|
|
|
|
def __setitem__(self, key: Any, value: Any) -> None:
|
|
self._target()[key] = value
|
|
|
|
def __delitem__(self, key: Any) -> None:
|
|
del self._target()[key]
|
|
|
|
def __contains__(self, item: Any) -> bool:
|
|
return item in self._target()
|
|
|
|
def __iter__(self):
|
|
return iter(self._target())
|
|
|
|
def __len__(self) -> int:
|
|
return len(self._target())
|
|
|
|
def __bool__(self) -> bool:
|
|
return bool(self._target())
|
|
|
|
def __enter__(self):
|
|
return self._target().__enter__()
|
|
|
|
def __exit__(self, *exc):
|
|
return self._target().__exit__(*exc)
|
|
|
|
def __eq__(self, other: Any) -> bool:
|
|
return self._target() == other
|
|
|
|
def __ne__(self, other: Any) -> bool:
|
|
return self._target() != other
|
|
|
|
def __lt__(self, other: Any) -> bool:
|
|
return self._target() < other
|
|
|
|
def __le__(self, other: Any) -> bool:
|
|
return self._target() <= other
|
|
|
|
def __gt__(self, other: Any) -> bool:
|
|
return self._target() > other
|
|
|
|
def __ge__(self, other: Any) -> bool:
|
|
return self._target() >= other
|
|
|
|
def __hash__(self) -> int:
|
|
return hash(self._target())
|
|
|
|
def __repr__(self) -> str: # pragma: no cover - debugging aid
|
|
return f"<LateState {object.__getattribute__(self, '_name')} -> {self._target()!r}>"
|