refactor: refactoring old code

legacy/dataset.py

@@ -0,0 +1,61 @@
+from typing import Iterable
+from pathlib import Path
+from dataclasses import dataclass
+from .common import LcrConnException, from_human_readable_value
+
+
+@dataclass(frozen=True)
+class DataSubset:
+    """A list holding available device gauge values for resistor, capacitor or inductor"""
+
+    gauges: tuple[float, ...]
+    """A list of available device gauge values"""
+
+    @staticmethod
+    def from_iterable(str_gauges: Iterable[str]) -> "DataSubset":
+        # Remove redundant parts
+        gauges_set: set[float] = set()
+        for str_gauge in str_gauges:
+            numeric_gauge = from_human_readable_value(str_gauge)
+            if numeric_gauge in gauges_set:
+                raise LcrConnException(f"Duplicate gauge value found: {str_gauge}")
+            else:
+                gauges_set.add(numeric_gauge)
+        # Return value
+        return DataSubset(tuple(gauges_set))
+
+    @staticmethod
+    def from_file(filename: Path) -> "DataSubset":
+        with open(filename, "r", encoding="utf-8") as f:
+            legal_lines = filter(lambda line: line != "", (line.strip() for line in f))
+            return DataSubset.from_iterable(legal_lines)
+
+
+@dataclass(frozen=True)
+class DataSet:
+    """The dataset include 3 lists of available device gauge values for resistor, capacitor and inductor"""
+
+    resistor: DataSubset
+    """A list of available device gauge values for resistor"""
+    capacitor: DataSubset
+    """A list of available device gauge values for capacitor"""
+    inductor: DataSubset
+    """A list of available device gauge values for inductor"""
+
+    @staticmethod
+    def from_iterable(
+        resistor: Iterable[str], capacitor: Iterable[str], inductor: Iterable[str]
+    ) -> "DataSet":
+        return DataSet(
+            DataSubset.from_iterable(resistor),
+            DataSubset.from_iterable(capacitor),
+            DataSubset.from_iterable(inductor),
+        )
+
+    @staticmethod
+    def from_file(resistor: Path, capacitor: Path, inductor: Path) -> "DataSet":
+        return DataSet(
+            DataSubset.from_file(resistor),
+            DataSubset.from_file(capacitor),
+            DataSubset.from_file(inductor),
+        )