first commit

reporting/registry.py

@@ -0,0 +1,32 @@
+from collections.abc import Iterable
+
+from core.base import BaseRenderer
+
+
+class RendererRegistry:
+    def __init__(self, renderers: Iterable[BaseRenderer] | None = None) -> None:
+        self._renderers: dict[str, BaseRenderer] = {}
+
+        for renderer in renderers or ():
+            self.register(renderer)
+
+    def register(self, renderer: BaseRenderer) -> None:
+        self._register_key(renderer.content_type, renderer)
+        for alias in renderer.aliases:
+            self._register_key(alias, renderer)
+
+    def _register_key(self, key: str, renderer: BaseRenderer) -> None:
+        if key in self._renderers:
+            registered = self._renderers[key]
+            raise ValueError(
+                f"Renderer key '{key}' is already registered by {type(registered).__name__}"
+            )
+        self._renderers[key] = renderer
+
+    def get(self, content_type: str) -> BaseRenderer:
+        try:
+            return self._renderers[content_type]
+        except KeyError as exc:
+            raise ValueError(
+                f"Renderer for content type '{content_type}' is not registered"
+            ) from exc