52 lines
1.4 KiB
Python
52 lines
1.4 KiB
Python
"""
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Service plugin registry.
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Auto-discovers all BaseService subclasses by importing every module in the
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services package. Adding a new service requires nothing beyond dropping a
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new .py file here that subclasses BaseService.
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"""
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import importlib
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import pkgutil
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from pathlib import Path
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from decnet.services.base import BaseService
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_registry: dict[str, BaseService] = {}
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_loaded = False
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def _load_plugins() -> None:
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global _loaded
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if _loaded:
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return
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package_dir = Path(__file__).parent
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for module_info in pkgutil.iter_modules([str(package_dir)]):
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if module_info.name in ("base", "registry"):
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continue
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importlib.import_module(f"decnet.services.{module_info.name}")
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for cls in BaseService.__subclasses__():
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if not cls.__module__.startswith("decnet.services."):
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continue
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instance = cls() # type: ignore[abstract]
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_registry[instance.name] = instance
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_loaded = True
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def register_custom_service(instance: BaseService) -> None:
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"""Register a dynamically created service (e.g. BYOS from INI)."""
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_load_plugins()
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_registry[instance.name] = instance
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def get_service(name: str) -> BaseService:
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_load_plugins()
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if name not in _registry:
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raise KeyError(f"Unknown service: '{name}'. Available: {list(_registry)}")
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return _registry[name]
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def all_services() -> dict[str, BaseService]:
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_load_plugins()
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return dict(_registry)
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