using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Logging;
using TestAPI01.Seed;
using NLog.Web;

namespace Test01
{
    public class Program
    {
        public static void Main(string[] args)
        {
            // NLog: setup the logger first to catch all errors
            // https://github.com/NLog/NLog.Web/wiki/Getting-started-with-ASP.NET-Core-2
            var logger = NLog.Web.NLogBuilder.ConfigureNLog("nlog.config").GetCurrentClassLogger();
            try
            {
                logger.Debug("Init main");

                Console.Title = "TB320 EVA Application";

                var host = BuildWebHost(args);

                var config = new ConfigurationBuilder()
                        .SetBasePath(Directory.GetCurrentDirectory())
                        .AddJsonFile("appsettings.json", optional: false)
                        .Build();

				var enableMigration = Environment.GetEnvironmentVariable("MIGRATION");

				if (!string.IsNullOrEmpty(enableMigration))
				{
					MigrationData.EnsureMigration(host.Services);
					//return;
				}
                
				var enableSeedApplicationDb = Convert.ToBoolean(config.GetSection("EnableSeedApplicationDb").Value);

                //SeedData.EnsureSeedData(host.Services, enableSeedApplicationDb);

                host.Run();
            }
            catch (Exception ex)
            {
                //NLog: catch setup errors
                logger.Error(ex, "Stopped program because of exception");
                throw;
            }
            finally
            {
                // Ensure to flush and stop internal timers/threads before application-exit (Avoid segmentation fault on Linux)
                NLog.LogManager.Shutdown();
            }
        }

        public static IWebHost BuildWebHost(string[] args) =>
            WebHost.CreateDefaultBuilder(args)
                .ConfigureAppConfiguration((hostingContext, config) =>
                {
                    config.AddEnvironmentVariables();
                })
                .UseStartup<Startup>()
                
                //NLog Config
                .ConfigureLogging(logging =>
                {
                    logging.ClearProviders();
                    logging.SetMinimumLevel(Microsoft.Extensions.Logging.LogLevel.Trace);
                })
                .UseNLog()  // NLog: setup NLog for Dependency injection

                .Build();
    }
}