Wires refactor (#7699)

Co-authored-by: metalgearsloth <31366439+metalgearsloth@users.noreply.github.com>
Co-authored-by: Kara <lunarautomaton6@gmail.com>

Content.Server/Wires/BaseWireAction.cs

@@ -0,0 +1,54 @@
+using Content.Server.Power.Components;
+using Content.Shared.Wires;
+using Robust.Shared.GameObjects;
+using Robust.Shared.IoC;
+using Robust.Shared.Serialization.Manager.Attributes;
+
+namespace Content.Server.Wires;
+
+/// <summary><see cref="IWireAction" /></summary>
+public abstract class BaseWireAction : IWireAction
+{
+    public IEntityManager EntityManager = default!;
+    public WiresSystem WiresSystem = default!;
+
+    // not virtual so implementors are aware that they need a nullable here
+    public abstract object? StatusKey { get; }
+
+    // ugly, but IoC doesn't work during deserialization
+    public virtual void Initialize()
+    {
+        EntityManager = IoCManager.Resolve<IEntityManager>();
+
+        WiresSystem = EntitySystem.Get<WiresSystem>();
+    }
+
+    public virtual bool AddWire(Wire wire, int count) => count == 1;
+    public abstract bool Cut(EntityUid user, Wire wire);
+    public abstract bool Mend(EntityUid user, Wire wire);
+    public abstract bool Pulse(EntityUid user, Wire wire);
+    public virtual void Update(Wire wire)
+    {
+        return;
+    }
+    public abstract StatusLightData? GetStatusLightData(Wire wire);
+
+    // most things that use wires are powered by *something*, so
+    //
+    // this isn't required by any wire system methods though, so whatever inherits it here
+    // can use it
+    /// <summary>
+    ///     Utility function to check if this given entity is powered.
+    /// </summary>
+    /// <returns>true if powered, false otherwise</returns>
+    public bool IsPowered(EntityUid uid)
+    {
+        if (!EntityManager.TryGetComponent<ApcPowerReceiverComponent>(uid, out var power)
+            || power.PowerDisabled) // there's some kind of race condition here?
+        {
+            return false;
+        }
+
+        return power.Powered;
+    }
+}