Derive device voltages from project settings

src/domain/services/project-voltage.service.ts

@@ -0,0 +1,35 @@
+export type ElectricalPhaseType = "single_phase" | "three_phase";
+
+export interface ProjectVoltageSettings {
+  singlePhaseVoltageV: number;
+  threePhaseVoltageV: number;
+}
+
+export function resolveProjectVoltage(
+  phaseType: ElectricalPhaseType,
+  settings: ProjectVoltageSettings
+) {
+  return phaseType === "three_phase"
+    ? settings.threePhaseVoltageV
+    : settings.singlePhaseVoltageV;
+}
+
+export function resolveCircuitPhaseType(
+  sectionKey: string,
+  devicePhaseTypes: ReadonlyArray<string | null | undefined> = []
+): ElectricalPhaseType {
+  if (sectionKey === "three_phase") {
+    return "three_phase";
+  }
+  if (sectionKey === "lighting" || sectionKey === "single_phase") {
+    return "single_phase";
+  }
+  const assignedPhaseTypes = devicePhaseTypes.filter(
+    (phaseType): phaseType is ElectricalPhaseType =>
+      phaseType === "single_phase" || phaseType === "three_phase"
+  );
+  return assignedPhaseTypes.length > 0 &&
+    assignedPhaseTypes.every((phaseType) => phaseType === "three_phase")
+    ? "three_phase"
+    : "single_phase";
+}