using System.IO;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore;
using Microsoft.Extensions.Configuration;

namespace ContosoUniversity.Api
{
    public class Program
    {
        public static void Main(string[] args)
        {
            var host = new WebHostBuilder()
                .UseKestrel()
                .UseContentRoot(Directory.GetCurrentDirectory())
                .UseIISIntegration()
                .ConfigureAppConfiguration(ConfigConfiguration)
                .UseStartup<Startup>()
                .Build();

            host.Run();
        }

        // use by EF Tooling
        public static IWebHost BuildWebHost(string[] args) => WebHost.CreateDefaultBuilder(args)
            .UseStartup<Startup>()
            .Build();

        public static void ConfigConfiguration(WebHostBuilderContext context, IConfigurationBuilder config)
        {
            config.SetBasePath(Directory.GetCurrentDirectory())
                  .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
                  .AddJsonFile($"appsettings.{context.HostingEnvironment.EnvironmentName}.json", optional: true);

            if (context.HostingEnvironment.IsDevelopment())
            {
                config.AddJsonFile($"sampleData.json", optional: false, reloadOnChange: false);
                config.AddUserSecrets<Startup>();
            }

            config.AddEnvironmentVariables();
        }
    }
}