using System;
using System.IO;
using System.Linq;
using System.Reflection;

namespace Kavita.Common.EnvironmentInfo
{
    public static class BuildInfo
    {
        static BuildInfo()
        {
            var assembly = Assembly.GetExecutingAssembly();

            Version = assembly.GetName().Version;

            var attributes = assembly.GetCustomAttributes(true);

            Branch = "unknown";

            var config = attributes.OfType<AssemblyConfigurationAttribute>().FirstOrDefault();
            if (config != null)
            {
                Branch = config.Configuration; // NOTE: This is not helpful, better to have main/develop branch
            }

            Release = $"{Version}-{Branch}";
        }

        public static string AppName { get; } = "Kavita";

        public static Version Version { get; }
        public static string Branch { get; }
        public static string Release { get; }

        public static DateTime BuildDateTime
        {
            get
            {
                var fileLocation = Assembly.GetCallingAssembly().Location;
                return new FileInfo(fileLocation).LastWriteTimeUtc;
            }
        }

        public static bool IsDebug
        {
            get
            {
#if DEBUG
                return true;
#else
                return false;
#endif
            }
        }
    }
}