using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using NLog;
using System.Net;
using System.Runtime.CompilerServices;
using YieldChain.Commons;
using YLErp.Modules.DataCacheModule;

namespace YLErp
{
    public class Program
    {
        static IServiceProvider ServiceProvider;

        [ModuleInitializer]
        internal static void M1()
        {
            if (string.Equals(Environment.GetEnvironmentVariable("YLErp_UNIT_TEST_SKIP_INITIALIZATION"), "1", StringComparison.Ordinal))
                return;

            Console.WriteLine("version--" + AppManager.Version);

            var logger = NLog.LogManager.Setup().GetCurrentClassLogger();

            logger.Debug("init main");

            IConfiguration configuration = new ConfigurationBuilder().AddJsonFile("appsettings.json").Build();

            var services = new ServiceCollection();

            YLServiceLocator.SetServiceCollection(services);

            // P0 容错（2026-08-16）：初始化段（AppManager.Initialize 内部 InitializePsConfig 读 AppConfig 表、
            // DataCacheManager.UpdateOnce 预热）在测试库不可达时不再让 ModuleInitializer 抛异常连坐全部 903 个
            // 测试——降级为醒目警告，纯内存测试照常可跑；依赖配置/缓存/库的测试将以各自的连接错误失败
            // （与降级前表现一致，只是不再全红归因到"类创建失败"）。完全跳过初始化仍用
            // YLErp_UNIT_TEST_SKIP_INITIALIZATION=1。实测触发链：M1→AppManager.Initialize→ConfigDic→
            // ServerVersion.AutoDetect→MySQL 不可达（Program.cs:33，2026-08-16 栈实证）。
            try
            {
                AppManager.Initialize(YLErp.Enums.SubSystemName.UnitTest, configuration);
                DataCacheManager.UpdateOnce();
            }
            catch (Exception ex)
            {
                var warn = $"[UnitTest初始化降级] 初始化段失败（测试库不可达？）：{ex.GetType().Name}: {ex.Message}。" +
                           "纯内存测试继续；依赖配置/缓存/数据库的测试将失败——这是网络问题不是代码问题。";
                Console.WriteLine(warn);
                logger.Warn(warn);
            }

            services.AddHttpClient("")
                .ConfigurePrimaryHttpMessageHandler(messageHandler =>
                {
                    var handler = new HttpClientHandler();
                    if (handler.SupportsAutomaticDecompression)
                    {
                        handler.AutomaticDecompression = DecompressionMethods.Deflate | DecompressionMethods.GZip;
                    }
                    return handler;
                });

            ServiceProvider = services.BuildServiceProvider();
            YLServiceLocator.SetServiceProvider(ServiceProvider);
            OtcAppContext.Initialize(s =>
            {
                var s2 = s.Trim('/').Replace("/", "\\");
                return @"d:\\" + s2;
            });
        }

        public static T GetService<T>()
        {
            return ServiceProvider.GetService<T>();
        }
    }
}