fix(ui): учитывать область в стоимости соседа OSPF

lib/ospf-cost.ts

@@ -0,0 +1,11 @@
+type InterfaceCost = { serverId: number; interface: string; areaId: string; cost: number }
+export const ospfCostKey = (serverId: number, iface: string, areaId: string) => JSON.stringify([serverId, iface, areaId])
+export function buildOspfCostIndex(interfaces: InterfaceCost[]): Map<string, number | null> {
+ const result = new Map<string, number | null>()
+ for (const iface of interfaces) {
+  const key = ospfCostKey(iface.serverId, iface.interface, iface.areaId)
+  const cost = Number.isInteger(iface.cost) && iface.cost >= 1 && iface.cost <= 65535 ? iface.cost : null
+  result.set(key, result.has(key) && result.get(key) !== cost ? null : cost)
+ }
+ return result
+}