using System;
using System.Runtime;
using Hncore.Infrastructure.Serializer;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;

namespace Hncore.Infrastructure.WebApi
{
    public static class HostingEnvironmentExtend
    {
        public static IConfigurationRoot UseAppsettings(this IHostingEnvironment env)
        {
            Console.WriteLine("环境：" + Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT"));
#if DEBUG
            Console.WriteLine("模式：DEBUG");
#endif

#if RELEASE
            Console.WriteLine("模式：RELEASE");
#endif

            Console.WriteLine("GC模式:" + new
            {
                IsServerGC = GCSettings.IsServerGC,
                LargeObjectHeapCompactionMode = GCSettings.LargeObjectHeapCompactionMode.ToString(),
                LatencyMode = GCSettings.LatencyMode.ToString()
            }.ToJson(true));

            System.Text.Encoding.RegisterProvider(System.Text.CodePagesEncodingProvider.Instance);

            var builder = new ConfigurationBuilder()
                .SetBasePath(env.ContentRootPath)
                .AddJsonFile("appsettings.json", optional: true, reloadOnChange: false)
                .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true, reloadOnChange: false)
                .AddEnvironmentVariables();

            var config = builder.Build();

            return config;
        }
    }
}