Re-organize all projects (#4166)

Content.Server/DeviceNetwork/Connections/WiredNetworkConnection.cs

@@ -0,0 +1,87 @@
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+using Content.Server.NodeContainer;
+using Content.Server.NodeContainer.NodeGroups;
+using Content.Server.Power.Components;
+using Robust.Shared.GameObjects;
+
+namespace Content.Server.DeviceNetwork.Connections
+{
+    public class WiredNetworkConnection : BaseNetworkConnection
+    {
+        public const string WIRENET = "powernet";
+
+        private readonly IEntity _owner;
+
+        public WiredNetworkConnection(OnReceiveNetMessage onReceive, bool receiveAll, IEntity owner) : base(NetworkUtils.WIRED, 0, onReceive, receiveAll)
+        {
+            _owner = owner;
+        }
+
+        protected override bool CanReceive(int frequency, string sender, IReadOnlyDictionary<string, string> payload, Metadata metadata, bool broadcast)
+        {
+            if (_owner.Deleted)
+            {
+                Connection.Close();
+                return false;
+            }
+
+            if (_owner.TryGetComponent<PowerReceiverComponent>(out var powerReceiver)
+                && TryGetWireNet(powerReceiver, out var ownNet)
+                && metadata.TryParseMetadata<INodeGroup>(WIRENET, out var senderNet))
+            {
+                return ownNet.Equals(senderNet);
+            }
+
+            return false;
+        }
+
+        protected override Metadata GetMetadata()
+        {
+            if (_owner.Deleted)
+            {
+                Connection.Close();
+                return new Metadata();
+            }
+
+            if (_owner.TryGetComponent<PowerReceiverComponent>(out var powerReceiver)
+                && TryGetWireNet(powerReceiver, out var net))
+            {
+                var metadata = new Metadata
+                {
+                    {WIRENET, net }
+                };
+
+                return metadata;
+            }
+
+            return new Metadata();
+        }
+
+        protected override Dictionary<string, string> ManipulatePayload(Dictionary<string, string> payload)
+        {
+            return payload;
+        }
+
+        private bool TryGetWireNet(PowerReceiverComponent powerReceiver, [NotNullWhen(true)] out INodeGroup? net)
+        {
+            if (powerReceiver.Provider is PowerProviderComponent provider &&
+                provider.ProviderOwner.TryGetComponent<NodeContainerComponent>(out var nodeContainer))
+            {
+                var nodes = nodeContainer.Nodes;
+
+                foreach (var node in nodes.Values)
+                {
+                    if (node.NodeGroupID == NodeGroupID.WireNet)
+                    {
+                        net = node.NodeGroup;
+                        return true;
+                    }
+                }
+            }
+
+            net = default;
+            return false;
+        }
+    }
+}