first commit

utils/contactPointUtils.ts

@@ -0,0 +1,46 @@
+import { type Period, isPeriodActive } from './periodUtils'
+
+interface ContactPoint {
+  system?: String
+  use?: String
+  rank?: Number
+  period?: Period
+  value?: String
+}
+
+export function getContactPoints(
+  contact: ContactPoint[],
+  system: 'phone' | 'email' | 'url' | 'fax' | 'pager' | 'sms' | 'other',
+): String[] {
+  if (!contact || contact.length === 0) {
+    return []
+  }
+
+  // Filter contact points by the specified system
+  const filteredBySystem = contact.filter((cp) => cp.system === system)
+
+  if (filteredBySystem.length === 0) {
+    return []
+  }
+
+  // Filter active contact points using the exported function
+  const activeContactPoints = filteredBySystem.filter((cp) =>
+    isPeriodActive(cp.period),
+  )
+
+  let sortedContactPoints: ContactPoint[]
+  if (activeContactPoints.length > 0) {
+    // Sort active contact points by rank (lower rank is preferred)
+    activeContactPoints.sort(
+      (a, b) => (a.rank || Infinity) - (b.rank || Infinity),
+    )
+    sortedContactPoints = activeContactPoints
+  } else {
+    // If no active contact points, return all contact points for the system sorted by rank
+    filteredBySystem.sort((a, b) => (a.rank || Infinity) - (b.rank || Infinity))
+    sortedContactPoints = filteredBySystem
+  }
+
+  // Map the sorted ContactPoint array to an array of their 'value' properties
+  return sortedContactPoints.map((cp) => cp.value || '')
+}