Second step

Content.Server/_Amour/ProtocolCRAB17/ProtocolCRAB17System.cs

@@ -0,0 +1,38 @@
+using Content.Shared._Amour.ProtocolCRAB17;
+using Content.Server.GameTicking;
+using Content.Server.Popups;
+
+namespace Content.Server._Amour.ProtocolCRAB17;
+
+public sealed class ProtocolCRAB17System : SharedProtocolCRAB17System
+{
+    [Dependency] private readonly GameTicker _gameTicker = default!;
+    [Dependency] private readonly PopupSystem _popupSystem = default!;
+    [Dependency] private readonly ProtocolCRAB17Rule _protocolCRAB17Rule = default!;
+
+    public override void OnDoAfter(Entity<ProtocolCRAB17Component> ent, ref ProtocolCRAB17DoAfterEvent args)
+    {
+        if (args.Cancelled || args.Handled)
+            return;
+
+        if (_gameTicker.IsGameRuleActive("ProtocolCRAB17Event"))
+        {
+            _popupSystem.PopupEntity(Loc.GetString("protocol-CRAB17-event-running"), ent, args.User);
+            args.Handled = true;
+            return;
+        }
+
+        if (!_protocolCRAB17Rule.CanStartEvent())
+        {
+            _popupSystem.PopupEntity(Loc.GetString("protocol-CRAB17-timeout"), ent, args.User);
+            args.Handled = true;
+            return;
+        }
+
+        _popupSystem.PopupEntity(Loc.GetString("protocol-CRAB17-activated"), ent, args.User);
+        _gameTicker.AddGameRule("ProtocolCRAB17Event");
+        args.Handled = true;
+        return;
+    }
+
+}