improvement: lab/clinic commiunication flow completely overhauled. no more shit.

frontend/src/lib/labCaseActivityLabels.ts

@@ -0,0 +1,56 @@
+import type { LabCaseActivityItem } from '@/types/lab-case-activity';
+
+type ActivityLabelTranslator = (
+  key: string,
+  values?: Record<string, string | number>,
+) => string;
+
+export function formatLabCaseActivityLine(
+  activity: LabCaseActivityItem,
+  t: ActivityLabelTranslator,
+  locale: string,
+): string {
+  const actor = activity.actorName ?? t('activityUnknownActor');
+  const date = new Date(activity.createdAt).toLocaleString(locale, {
+    month: 'short',
+    day: 'numeric',
+    hour: '2-digit',
+    minute: '2-digit',
+  });
+
+  switch (activity.type) {
+    case 'CASE_SENT':
+      return t('activityCaseSent', { date });
+    case 'CLINIC_COMMENT':
+      return t('activityClinicComment', {
+        actor,
+        preview: truncatePreview(activity.commentBody),
+        date,
+      });
+    case 'LAB_COMMENT':
+      return t('activityLabComment', {
+        actor,
+        preview: truncatePreview(activity.commentBody),
+        date,
+      });
+    case 'TASK_COMPLETED':
+      return t('activityTaskCompleted', {
+        step: activity.stepLabel ?? t('activityUnknownStep'),
+        actor,
+        date,
+      });
+    case 'CASE_IMPORTANT':
+      return t('activityCaseImportant', { actor, date });
+    case 'CASE_AMENDED':
+      return t('activityCaseAmended', { actor, date });
+    default:
+      return t('activityGeneric', { date });
+  }
+}
+
+function truncatePreview(text: string | null | undefined, max = 60): string {
+  const trimmed = text?.trim() ?? '';
+  if (!trimmed) return '…';
+  if (trimmed.length <= max) return trimmed;
+  return `${trimmed.slice(0, max - 1)}…`;
+}