Add detector architecture + isotropic detectors

src/pg_rad/detector/builder.py

@@ -0,0 +1,20 @@
+from pg_rad.inputparser.specs import DetectorSpec
+
+from .detectors import IsotropicDetector, AngularDetector
+
+
+class DetectorBuilder:
+    def __init__(
+        self,
+        detector_spec: DetectorSpec,
+    ):
+        self.detector_spec = detector_spec
+
+    def build(self) -> IsotropicDetector | AngularDetector:
+        if self.detector_spec.is_isotropic:
+            return IsotropicDetector(
+                self.detector_spec.name,
+                self.detector_spec.eff
+            )
+        else:
+            raise NotImplementedError("Angular detector not supported yet.")

src/pg_rad/detector/detectors.py

@@ -0,0 +1,38 @@
+from abc import ABC
+
+
+class BaseDetector(ABC):
+    def __init__(
+        self,
+        name: str,
+        eff: float
+    ):
+        self.name = name
+        self.eff = eff
+
+    def get_efficiency(self):
+        pass
+
+
+class IsotropicDetector(BaseDetector):
+    def __init__(
+        self,
+        name: str,
+        eff: float | None = None
+    ):
+        super().__init__(name, eff)
+
+    def get_efficiency(self, energy):
+        return self.eff
+
+
+class AngularDetector(BaseDetector):
+    def __init__(
+        self,
+        name: str,
+        eff: float | None = None
+    ):
+        super().__init__(name, eff)
+
+    def get_efficiency(self, angle, energy):
+        pass