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;
    }
}