booking operations and trains scheduling also allocations

apps/edr-freight-web/backoffice/src/components/trainScheduling/RescheduleTrainDialog.tsx

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+import { useState } from "react";
+import { Button, Group, Modal, Stack, Text, TextInput, Textarea } from "@mantine/core";
+import toast from "react-hot-toast";
+
+import { trainSchedulingService } from "@/services/trainScheduling.service";
+
+export function RescheduleTrainDialog({
+  scheduleId,
+  currentBookingIds,
+  opened,
+  onClose,
+  onComplete,
+}: {
+  scheduleId: string;
+  currentBookingIds: string[];
+  opened: boolean;
+  onClose: () => void;
+  onComplete?: () => void;
+}) {
+  const [newDepartureDate, setNewDepartureDate] = useState("");
+  const [reason, setReason] = useState("");
+  const [loading, setLoading] = useState(false);
+
+  const handleSubmit = async () => {
+    if (!newDepartureDate) {
+      toast.error("Select a new departure date");
+      return;
+    }
+    setLoading(true);
+    try {
+      await trainSchedulingService.maintenanceReschedule(scheduleId, {
+        incomingBookingIds: currentBookingIds,
+        newDepartureDate: new Date(newDepartureDate).toISOString(),
+        reason,
+      });
+      toast.success("Train rescheduled for maintenance");
+      onComplete?.();
+      onClose();
+    } catch {
+      toast.error("Reschedule failed");
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  return (
+    <Modal opened={opened} onClose={onClose} title="Reschedule train (maintenance)" radius="lg">
+      <Stack gap="md">
+        <Text size="sm" c="dimmed">
+          Updates departure and rebalances bookings on this train. Displaced bookings return to
+          the operations queue when capacity is insufficient.
+        </Text>
+        <TextInput
+          label="New departure"
+          type="datetime-local"
+          value={newDepartureDate}
+          onChange={(e) => setNewDepartureDate(e.target.value)}
+        />
+        <Textarea
+          label="Reason"
+          placeholder="e.g. Locomotive maintenance"
+          value={reason}
+          onChange={(e) => setReason(e.target.value)}
+        />
+        <Group justify="flex-end">
+          <Button variant="default" onClick={onClose}>
+            Cancel
+          </Button>
+          <Button loading={loading} onClick={handleSubmit}>
+            Reschedule
+          </Button>
+        </Group>
+      </Stack>
+    </Modal>
+  );
+}