using Abp.Authorization;

namespace VberZero.Authorization.Roles;

/// <summary>
/// Equality comparer for <see cref="Permission"/> objects.
/// </summary>
internal class PermissionEqualityComparer : IEqualityComparer<Permission>
{
    public static PermissionEqualityComparer Instance { get; } = new PermissionEqualityComparer();

    public bool Equals(Permission? x, Permission? y)
    {
        if (x == null && y == null)
        {
            return true;
        }
        if (x == null || y == null)
        {
            return false;
        }

        return Equals(x.Name, y.Name);
    }

    public int GetHashCode(Permission permission)
    {
        return permission.Name.GetHashCode();
    }
}