using System;
using System.ComponentModel.DataAnnotations;
using System.Reflection;

namespace Generic.Services;

public static class EnumExtensions
{
    public static string GetDisplayName(this Enum value)
    {
        if (value == null)
            throw new ArgumentNullException(nameof(value));

        // Get the enum field name
        string name = value.ToString();

        // Get the field info for the enum value
        FieldInfo? field = value.GetType().GetField(name);
        if (field == null)
            return name; // Not a defined enum value (e.g., flags combination)

        // Check for the [Display] attribute
        DisplayAttribute? displayAttribute = field.GetCustomAttribute<DisplayAttribute>();
        return displayAttribute?.GetName() ?? name;
    }
}