Predict some power PowerReceiver stuff (#33834)

* Predict some power PowerReceiver stuff

Need it for some atmos device prediction.

* Also this

Content.Shared/Power/EntitySystems/SharedPowerReceiverSystem.cs

@@ -1,12 +1,67 @@
 using System.Diagnostics.CodeAnalysis;
+using Content.Shared.Administration.Logs;
+using Content.Shared.Database;
 using Content.Shared.Power.Components;
+using Robust.Shared.Audio;
+using Robust.Shared.Audio.Systems;
 
 namespace Content.Shared.Power.EntitySystems;
 
 public abstract class SharedPowerReceiverSystem : EntitySystem
 {
+    [Dependency] private readonly ISharedAdminLogManager _adminLogger = default!;
+    [Dependency] private readonly SharedAudioSystem _audio = default!;
+
     public abstract bool ResolveApc(EntityUid entity, [NotNullWhen(true)] ref SharedApcPowerReceiverComponent? component);
 
+    public void SetNeedsPower(EntityUid uid, bool value, SharedApcPowerReceiverComponent? receiver = null)
+    {
+        if (!ResolveApc(uid, ref receiver) || receiver.NeedsPower == value)
+            return;
+
+        receiver.NeedsPower = value;
+        Dirty(uid, receiver);
+    }
+
+    public void SetPowerDisabled(EntityUid uid, bool value, SharedApcPowerReceiverComponent? receiver = null)
+    {
+        if (!ResolveApc(uid, ref receiver) || receiver.PowerDisabled == value)
+            return;
+
+        receiver.PowerDisabled = value;
+        Dirty(uid, receiver);
+    }
+
+    /// <summary>
+    /// Turn this machine on or off.
+    /// Returns true if we turned it on, false if we turned it off.
+    /// </summary>
+    public bool TogglePower(EntityUid uid, bool playSwitchSound = true, SharedApcPowerReceiverComponent? receiver = null, EntityUid? user = null)
+    {
+        if (!ResolveApc(uid, ref receiver))
+            return true;
+
+        // it'll save a lot of confusion if 'always powered' means 'always powered'
+        if (!receiver.NeedsPower)
+        {
+            SetPowerDisabled(uid, false, receiver);
+            return true;
+        }
+
+        SetPowerDisabled(uid, !receiver.PowerDisabled, receiver);
+
+        if (user != null)
+            _adminLogger.Add(LogType.Action, LogImpact.Low, $"{ToPrettyString(user.Value):player} hit power button on {ToPrettyString(uid)}, it's now {(!receiver.PowerDisabled ? "on" : "off")}");
+
+        if (playSwitchSound)
+        {
+            _audio.PlayPredicted(new SoundPathSpecifier("/Audio/Machines/machine_switch.ogg"), uid, user: user,
+                AudioParams.Default.WithVolume(-2f));
+        }
+
+        return !receiver.PowerDisabled; // i.e. PowerEnabled
+    }
+
     /// <summary>
     /// Checks if entity is APC-powered device, and if it have power.
     /// </summary>