using System;
using System.Reflection;

namespace Xylem.Common.Utils.UserAccessCtrl
{
    internal struct ApplicationVersion
    {
        private ApplicationVersion(Boolean initialize)
        {
            if (initialize)
            {
                Assembly = System.Reflection.Assembly
                    .GetExecutingAssembly()
                    .GetName();
                Major = Assembly.Version.Major;
                Minor = Assembly.Version.Minor;
                Build = Assembly.Version.Build;
            }
            else
            {
                Major = default(Int32);
                Minor = default(Int32);
                Build = default(Int32);
                Assembly = default(AssemblyName);
            }
        }

        public Int32 Major { get; }

        public Int32 Minor { get; }

        public Int32 Build { get; }

        public AssemblyName Assembly { get; }

        public override String ToString()
            => $"{nameof(Version)}: {Major}.{Minor}.{Build}";

        public static ApplicationVersion Current => new ApplicationVersion(true);

        public static implicit operator String(ApplicationVersion assemblyVersion)
            => assemblyVersion.ToString();
    }
}