Objectives ecs rework (#19967)

Co-authored-by: deltanedas <@deltanedas:kde.org>

Content.Server/Objectives/Systems/NotCommandRequirementSystem.cs

@@ -0,0 +1,27 @@
+using Content.Server.Objectives.Components;
+using Content.Shared.Objectives.Components;
+using Content.Shared.Roles.Jobs;
+
+namespace Content.Server.Objectives.Systems;
+
+public sealed class NotCommandRequirementSystem : EntitySystem
+{
+    [Dependency] private readonly SharedJobSystem _job = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<NotCommandRequirementComponent, RequirementCheckEvent>(OnCheck);
+    }
+
+    private void OnCheck(EntityUid uid, NotCommandRequirementComponent comp, ref RequirementCheckEvent args)
+    {
+        if (args.Cancelled)
+            return;
+
+        // cheap equivalent to checking that job department is command, since all command members require admin notification when leaving
+        if (_job.MindTryGetJob(args.MindId, out _, out var prototype) && prototype.RequireAdminNotify)
+            args.Cancelled = true;
+    }
+}