using System.Collections.Generic;

namespace IwbZero.Authorization.Base.Permissions
{
    internal class DataPermissionNameComparer : IEqualityComparer<string>
    {
        public static DataPermissionNameComparer Instance => new DataPermissionNameComparer();

        public bool Equals(string x, string y)
        {
            if (string.IsNullOrEmpty(x) && string.IsNullOrEmpty(y))
            {
                return true;
            }
            if (string.IsNullOrEmpty(x) || string.IsNullOrEmpty(y))
            {
                return false;
            }
            if (x.EndsWith($"@{(int)OperType.All}"))
            {
                return true;
            }

            return x == y;
        }

        public int GetHashCode(string obj)
        {
            return obj.GetHashCode();
        }
    }
}