booking operations and trains scheduling also allocations

apps/edr-freight-web/backoffice/src/components/trainScheduling/pinWagons.util.ts

@@ -0,0 +1,56 @@
+export interface WagonSlotForPin {
+  id: string;
+  sequenceNo: number;
+  physicalWagonId?: string | null;
+  wagonType?: { id: string } | null;
+}
+
+export function autoFillWagonAssignments(
+  slots: WagonSlotForPin[],
+  wagonOptionsByType: Map<string, Array<{ value: string; label: string }>>,
+  existingAssignments: Record<string, string> = {},
+): Record<string, string> {
+  const next: Record<string, string> = {};
+  const assignedWagonIds = new Set<string>();
+
+  for (const slot of slots) {
+    const pinnedId = slot.physicalWagonId ?? existingAssignments[slot.id];
+    if (pinnedId) {
+      next[slot.id] = pinnedId;
+      assignedWagonIds.add(pinnedId);
+    }
+  }
+
+  for (const slot of slots) {
+    if (next[slot.id]) continue;
+
+    const typeId = slot.wagonType?.id ?? "";
+    const options = wagonOptionsByType.get(typeId) ?? [];
+    const availableWagon = options.find((option) => !assignedWagonIds.has(option.value));
+    if (availableWagon) {
+      next[slot.id] = availableWagon.value;
+      assignedWagonIds.add(availableWagon.value);
+    }
+  }
+
+  return next;
+}
+
+export function countFilledSlots(
+  slots: WagonSlotForPin[],
+  assignments: Record<string, string>,
+): { filled: number; total: number; unfilledSlotNumbers: number[] } {
+  const unfilledSlotNumbers: number[] = [];
+
+  for (const slot of slots) {
+    if (!assignments[slot.id]) {
+      unfilledSlotNumbers.push(slot.sequenceNo);
+    }
+  }
+
+  return {
+    filled: slots.length - unfilledSlotNumbers.length,
+    total: slots.length,
+    unfilledSlotNumbers,
+  };
+}