feature: Improve dashboard functionality

vigilcare-dashboard/src/composables/criticalAlertDetect.js

@@ -0,0 +1,19 @@
+export function isNotifiableCriticalAlert(alert) {
+  return (
+    alert.severity === 'Critical'
+    && (alert.status === 'Open' || alert.status === 'Escalated')
+  )
+}
+
+export function detectNewCriticalAlerts(alerts, lastSeenIds, seeded = false) {
+  const criticalOpen = alerts.filter(isNotifiableCriticalAlert)
+  const criticalIds = criticalOpen.map(alert => alert.id)
+
+  if (!seeded) {
+    return { newAlerts: [], nextSeenIds: criticalIds, seeded: true }
+  }
+
+  const seen = new Set(lastSeenIds)
+  const newAlerts = criticalOpen.filter(alert => !seen.has(alert.id))
+  return { newAlerts, nextSeenIds: criticalIds, seeded: true }
+}