machine linking refactor to ecs (#4323)

* started work

* some more work, ui working (somewhat)

* stuff

* reorganization

* some more reorg

* conveyors

* conveyors working

* finalized (dis)connection
added linkattempt
added feedback text
work on conveyors

* removed command
add rangecheck

* fixed inrange check

* handling

* ui no longer kanser, ship it

* adresses reviews

* reformats file

* reformats file

Co-authored-by: Paul <ritter.paul1+git@googlemail.com>

Content.Server/MachineLinking/Models/SignalPort.cs

@@ -0,0 +1,81 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+using Content.Server.MachineLinking.Events;
+using Content.Server.MachineLinking.Exceptions;
+using Robust.Shared.Serialization.Manager.Attributes;
+
+namespace Content.Server.MachineLinking.Models
+{
+    [DataDefinition]
+    public class SignalPort
+    {
+        [DataField("name", required: true)] public string Name { get; } = default!;
+        [DataField("type")] public Type? Type { get; }
+        /// <summary>
+        /// Maximum connections of the port. 0 means infinite.
+        /// </summary>
+        [DataField("maxConnections")] public int MaxConnections { get; } = 0;
+
+        public object? Signal;
+    }
+
+    public static class PortPrototypeExtensions{
+        public static bool ContainsPort(this IReadOnlyList<SignalPort> ports, string port)
+        {
+            foreach (var portPrototype in ports)
+            {
+                if (portPrototype.Name == port)
+                {
+                    return true;
+                }
+            }
+
+            return false;
+        }
+
+        public static IEnumerable<string> GetPortStrings(this IReadOnlyList<SignalPort> ports)
+        {
+            foreach (var portPrototype in ports)
+            {
+                yield return portPrototype.Name;
+            }
+        }
+
+        public static IEnumerable<KeyValuePair<string, bool>> GetValidatedPorts(this IReadOnlyList<SignalPort> ports, Type? validType)
+        {
+            foreach (var portPrototype in ports)
+            {
+                yield return new KeyValuePair<string, bool>(portPrototype.Name, portPrototype.Type == validType);
+            }
+        }
+
+        public static bool TryGetPort(this IReadOnlyList<SignalPort> ports, string name, [NotNullWhen(true)] out SignalPort? port)
+        {
+            foreach (var portPrototype in ports)
+            {
+                if (portPrototype.Name == name)
+                {
+                    port = portPrototype;
+                    return true;
+                }
+            }
+
+            port = null;
+            return false;
+        }
+
+        public static SignalPort GetPort(this IReadOnlyList<SignalPort> ports, string name)
+        {
+            foreach (var portPrototype in ports)
+            {
+                if (portPrototype.Name == name)
+                {
+                    return portPrototype;
+                }
+            }
+
+            throw new PortNotFoundException();
+        }
+    }
+}