Fix: prevent delete default network (apple#1083)

- Fixed apple#1073
- Move the conditional check to the front; there's no need
  to check for a default network after filtering.

Signed-off-by: ChengHao Yang <17496418+tico88612@users.noreply.github.com>

Author: tico88612

Sources/ContainerCommands/Network/NetworkDelete.swift

@@ -54,8 +54,16 @@ extension Application {
  let uniqueNetworkNames = Set<String>(networkNames)
  let networks: [NetworkState]
 
+ if uniqueNetworkNames.contains(ClientNetwork.defaultNetworkName) {
+ throw ContainerizationError(
+ .invalidArgument,
+                    message: "cannot delete the default network"
+ )
+ }
+
  if all {
                 networks = try await ClientNetwork.list()
+ .filter { $0.id != ClientNetwork.defaultNetworkName }
  } else {
                 networks = try await ClientNetwork.list()
  .filter { c in
@@ -78,13 +86,6 @@ extension Application {
  }
  }
 
- if uniqueNetworkNames.contains(ClientNetwork.defaultNetworkName) {
- throw ContainerizationError(
- .invalidArgument,
-                    message: "cannot delete the default network"
- )
- }
-
  var failed = [String]()
  let logger = log
  try await withThrowingTaskGroup(of: NetworkState?.self) { group in