Re-organize all projects (#4166)

Content.Server/Alert/ServerAlertsComponent.cs

@@ -0,0 +1,84 @@
+using System;
+using Content.Server.Gravity.EntitySystems;
+using Content.Shared.Alert;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Log;
+using Robust.Shared.Network;
+using Robust.Shared.Players;
+
+namespace Content.Server.Alert
+{
+    [RegisterComponent]
+    [ComponentReference(typeof(SharedAlertsComponent))]
+    public sealed class ServerAlertsComponent : SharedAlertsComponent
+    {
+
+        protected override void Startup()
+        {
+            base.Startup();
+
+            if (EntitySystem.TryGet<WeightlessSystem>(out var weightlessSystem))
+            {
+                weightlessSystem.AddAlert(this);
+            }
+            else
+            {
+                Logger.WarningS("alert", "weightlesssystem not found");
+            }
+        }
+
+        public override void OnRemove()
+        {
+            if (EntitySystem.TryGet<WeightlessSystem>(out var weightlessSystem))
+            {
+                weightlessSystem.RemoveAlert(this);
+            }
+            else
+            {
+                Logger.WarningS("alert", $"{nameof(WeightlessSystem)} not found");
+            }
+
+            base.OnRemove();
+        }
+
+        public override void HandleNetworkMessage(ComponentMessage message, INetChannel netChannel, ICommonSession? session = null)
+        {
+            base.HandleNetworkMessage(message, netChannel, session);
+
+            if (session == null)
+            {
+                throw new ArgumentNullException(nameof(session));
+            }
+
+            switch (message)
+            {
+                case ClickAlertMessage msg:
+                {
+                    var player = session.AttachedEntity;
+
+                    if (player != Owner)
+                    {
+                        break;
+                    }
+
+                    if (!IsShowingAlert(msg.AlertType))
+                    {
+                        Logger.DebugS("alert", "user {0} attempted to" +
+                                              " click alert {1} which is not currently showing for them",
+                            player.Name, msg.AlertType);
+                        break;
+                    }
+
+                    if (!AlertManager.TryGet(msg.AlertType, out var alert))
+                    {
+                        Logger.WarningS("alert", "unrecognized encoded alert {0}", msg.AlertType);
+                        break;
+                    }
+
+                    alert.OnClick?.AlertClicked(new ClickAlertEventArgs(player, alert));
+                    break;
+                }
+            }
+        }
+    }
+}