fixed ip allocation service

src/main/java/com/litoralregas/openvpn/openvpn/IpAllocationService.java

@@ -12,15 +12,12 @@ public class IpAllocationService {
 
     private final IpAllocationRepository repository;
     private final RouterService routerService;
-    private final OpenVpnService openVpnService;
 
     public IpAllocationService(
             IpAllocationRepository repository,
-            RouterService routerService,
-            OpenVpnService openVpnService) {
+            RouterService routerService) {
         this.repository = repository;
         this.routerService = routerService;
-        this.openVpnService = openVpnService;
     }
 
     public IpAllocationResponse allocate(UUID routerId, CreateIpAllocationRequest request) {
@@ -32,16 +29,11 @@ public class IpAllocationService {
 
         int number = resolveNumber(request);
 
-        String lanSubnet = "192.168." + number + ".0";
+        String lanSubnet = router.getLanSubnet();
         String vpnIp = "198.20.1." + number;
 
         validateNumber(number);
         validateNoDuplicates(lanSubnet, vpnIp);
-        validateAgainstLiveClients(
-                request.getClientName(),
-                vpnIp,
-                lanSubnet
-        );
 
         IpAllocation allocation = new IpAllocation();
         allocation.setId(UUID.randomUUID());
@@ -65,10 +57,9 @@ public class IpAllocationService {
         }
 
         for (int number = 2; number <= 254; number++) {
-            String lanSubnet = "192.168." + number + ".0";
             String vpnIp = "198.20.1." + number;
 
-            if (!repository.existsByLanSubnet(lanSubnet) && !repository.existsByVpnIp(vpnIp)) {
+            if (!repository.existsByVpnIp(vpnIp)) {
                 return number;
             }
         }
@@ -92,24 +83,6 @@ public class IpAllocationService {
         }
     }
 
-    private void validateAgainstLiveClients(String clientName, String vpnIp, String lanSubnet) {
-        var clients = openVpnService.listClients();
-
-        for (var client : clients) {
-            if (client.clientName().equalsIgnoreCase(clientName)) {
-                throw new IllegalArgumentException("Client already exists on VPS: " + clientName);
-            }
-
-            if (client.vpnIp().equals(vpnIp)) {
-                throw new IllegalArgumentException("VPN IP already in use on VPS: " + vpnIp);
-            }
-
-            if (client.lanSubnet().equals(lanSubnet)) {
-                throw new IllegalArgumentException("LAN subnet already in use on VPS: " + lanSubnet);
-            }
-        }
-    }
-
     public void delete(UUID id) {
         repository.deleteById(id);
     }