Add minDate handling for vessel and departure dates across components

apps/edr-freight-web/backoffice/src/pages/trainScheduling/TrainScheduleV2ListPage.tsx

@@ -55,6 +55,13 @@ import { useToast } from "@/hooks/use-toast";
 import type { TrainScheduleListItem } from "@/types/trainScheduling";
 import { DataTable, DataTableFooter, usePagination } from "@edr/ui-common";
 
+/** `min` for a `datetime-local` input: now, in the browser's local zone. */
+const nowLocalDateTime = () => {
+  const now = new Date();
+  now.setMinutes(now.getMinutes() - now.getTimezoneOffset());
+  return now.toISOString().slice(0, 16);
+};
+
 const splitDate = (value?: string | null) => {
   if (!value) return { day: "—", time: "" };
   const date = new Date(value);
@@ -103,6 +110,12 @@ export default function TrainScheduleV2ListPage() {
   const [routeId, setRouteId] = useState("");
   const [scheduleDate, setScheduleDate] = useState("");
   const [locomotiveIds, setLocomotiveIds] = useState<string[]>([]);
+  // Recomputed each time the create modal opens so a long-lived tab can't keep
+  // offering a stale "now" as the earliest selectable departure.
+  const minScheduleDate = useMemo(
+    () => (createOpen ? nowLocalDateTime() : ""),
+    [createOpen],
+  );
 
   const schedulesQuery = useQuery(
     api.trainScheduling.scheduleList.queryOptions({ input: {} }),
@@ -443,6 +456,13 @@ export default function TrainScheduleV2ListPage() {
       });
       return;
     }
+    if (new Date(scheduleDate).getTime() < Date.now()) {
+      toast({
+        title: "Departure date must be in the future",
+        variant: "destructive",
+      });
+      return;
+    }
     try {
       const created = await create.mutateAsync({
         payload: {
@@ -691,6 +711,7 @@ export default function TrainScheduleV2ListPage() {
           <TextInput
             label="Departure date"
             type="datetime-local"
+            min={minScheduleDate}
             value={scheduleDate}
             onChange={(e) => setScheduleDate(e.currentTarget.value)}
           />