using JiShe.CollectBus.Kafka.Internal;
using JiShe.CollectBus.Protocol.AnalysisData;
using JiShe.CollectBus.Protocol.Contracts;
using JiShe.CollectBus.Protocol.Contracts.Abstracts;
using JiShe.CollectBus.Protocol.Contracts.Interfaces;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.DependencyInjection.Extensions;
using Microsoft.Extensions.Logging;
using Serilog.Core;
using System.Reflection;
using TouchSocket.Core;
using Volo.Abp;
using Volo.Abp.Modularity;

namespace JiShe.CollectBus.Protocol
{
    public class JiSheCollectBusProtocolModule : AbpModule
    {
        public override void ConfigureServices(ServiceConfigurationContext context)
        {
            context.Services.AddKeyedSingleton<IProtocolPlugin, StandardProtocolPlugin>(nameof(StandardProtocolPlugin));
            RegisterProtocolAnalysis(context.Services);
        }

        public override async Task OnApplicationInitializationAsync(ApplicationInitializationContext context)
        {
            var standardProtocol = context.ServiceProvider.GetRequiredKeyedService<IProtocolPlugin>(nameof(StandardProtocolPlugin));
            await standardProtocol.LoadAsync();
        }

        public void RegisterProtocolAnalysis(IServiceCollection services)
        {
            // 扫描并注册所有策略
            var strategyMetadata = new Dictionary<(string, Type, Type), Type>();
            services.AddTransient<AnalysisStrategyContext>();

            // 批量注册
            var assemblyPath = Path.GetDirectoryName(Assembly.GetEntryAssembly()?.Location);
            if (string.IsNullOrWhiteSpace(assemblyPath))
            {
                return;
            }
            var dllFiles = Directory.GetFiles(Path.Combine(assemblyPath, "Plugins") , "*.dll");
            foreach (var file in dllFiles)
            {
                // 跳过已加载的程序集
                var assemblyName = AssemblyName.GetAssemblyName(file);
                var existingAssembly = AppDomain.CurrentDomain.GetAssemblies()
                    .FirstOrDefault(a => a.GetName().FullName == assemblyName.FullName);
                var assembly = existingAssembly ?? Assembly.LoadFrom(file);
                // 实现IAnalysisStrategy接口
               var analysisStrategyTypes = assembly.GetTypes().Where(t => !t.IsAbstract && !t.IsInterface && t.GetInterfaces().Any(i => i.IsGenericType && i.GetGenericTypeDefinition() == typeof(IAnalysisStrategy<,>)));
                if (analysisStrategyTypes.Count() == 0)
                    continue;
                foreach (var analysisStrategyType in analysisStrategyTypes)
                {
                    // 通过反射获取静态元数据  
                    var strategyType = analysisStrategyType.Name;
                   var genericArgs = analysisStrategyType.GetInterface("IAnalysisStrategy`2")!.GetGenericArguments();
                    var inputType = genericArgs[0];
                    var resultType = genericArgs[1];
                    // 注册策略实现
                    services.AddTransient(analysisStrategyType);
                    strategyMetadata[(strategyType, inputType, resultType)] = analysisStrategyType;


                }
            }

            // 注册元数据字典
            services.AddSingleton(strategyMetadata);

            // 注册策略解析工厂
            services.AddTransient<Func<string, Type, Type, object?>>(provider => (name, inputType, resultType) =>
            {
                var metadata = provider.GetRequiredService<Dictionary<(string, Type, Type), Type>>();
                if (metadata.TryGetValue((name, inputType, resultType), out var strategyType))
                {
                    return provider.GetRequiredService(strategyType);
                }
                else
                {
                   var logger= provider.GetRequiredService<ILogger<AnalysisStrategyContext>>();
                    logger.LogWarning($"未能找到解析策略：{name}-{inputType}-{resultType}");
                    return null;
                }
            });


        }
    }
}