using System;
using System.Reflection;
using Microsoft.AspNetCore.Hosting;

namespace LCU.API.Internal.RepoApi.Repos.Models
{
    public class EnvironmentView : IEnvironmentView
    {
        public string Application => _env.ApplicationName;
        public DateTime CurrentDate => DateTime.Now;
        public string BuildVersion => Assembly.GetExecutingAssembly().GetName().Version.ToString();
        public DateTime BuildDate => AssemblyBuildDate();
        public string Environment => _env.EnvironmentName;
        private readonly IHostingEnvironment _env;

        public EnvironmentView(IHostingEnvironment env)
        {
            _env = env;
        }

        public static DateTime AssemblyBuildDate()
        {
            //https://stackoverflow.com/a/804310/266594
            //TODO #246: Look up this value at start up to avoid hitting the filesystem repeatedly
            System.Reflection.Assembly assembly = System.Reflection.Assembly.GetExecutingAssembly();
            System.IO.FileInfo fileInfo = new System.IO.FileInfo(assembly.Location);
            DateTime lastModified = fileInfo.LastWriteTime;

            return lastModified;
        }

    }
}