Some cleanup, use OtterGui.

Glamourer.GameData/Structs/JobGroup.cs

@@ -0,0 +1,48 @@
+using System.Diagnostics;
+using System.Linq;
+using Lumina.Excel;
+using Lumina.Excel.GeneratedSheets;
+
+namespace Glamourer.Structs;
+
+public readonly struct JobGroup
+{
+    public readonly string Name;
+    private readonly ulong _flags;
+    public readonly int Count;
+    public readonly uint Id;
+
+    public JobGroup(ClassJobCategory group, ExcelSheet<ClassJob> jobs)
+    {
+        Count = 0;
+        _flags = 0ul;
+        Id = group.RowId;
+        Name = group.Name.ToString();
+
+        Debug.Assert(jobs.RowCount < 64);
+        foreach (var job in jobs)
+        {
+            var abbr = job.Abbreviation.ToString();
+            if (!abbr.Any())
+                continue;
+
+            var prop = group.GetType().GetProperty(abbr);
+            Debug.Assert(prop != null);
+
+            if (!(bool)prop.GetValue(group)!)
+                continue;
+
+            ++Count;
+            _flags |= 1ul << (int)job.RowId;
+        }
+    }
+
+    public bool Fits(Job job)
+        => Fits(job.Id);
+
+    public bool Fits(uint jobId)
+    {
+        var flag = 1ul << (int)jobId;
+        return (flag & _flags) != 0;
+    }
+}