using Microsoft.Extensions.DependencyInjection;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using JiShe.CollectBus.Protocol.Contracts.DependencyInjection;
using TouchSocket.Core;

namespace Microsoft.Extensions.DependencyInjection
{
    public static class DependencyInjectionExtensions
    {
        public static void ServiceRegister(this IServiceCollection services, params Assembly[] assemblies)
        {
            if (assemblies.Length <= 0)
            {
                assemblies = [Assembly.GetExecutingAssembly()];
            }

            foreach (var assembly in assemblies)
            {
                var allTypes = assembly.GetTypes();
                foreach (var type in allTypes)
                {
                    if (typeof(ITransientDependency).IsAssignableFrom(type) && type.IsClass && !type.IsAbstract)
                    {

                        var interfaceTypes = type.GetInterfaces().Where(p => p.FullName != null && !p.FullName.Contains("ITransientDependency"));
                        foreach (var interfaceType in interfaceTypes)
                        {
                            services.AddTransient(interfaceType, type);
                        }
                    }
                }

                foreach (var type in allTypes)
                {
                    if (typeof(ISingletonDependency).IsAssignableFrom(type) && type.IsClass && !type.IsAbstract)
                    {
                        var interfaceTypes = type.GetInterfaces().Where(p => p.FullName != null && !p.FullName.Contains("ISingletonDependency"));
                        foreach (var interfaceType in interfaceTypes)
                        {
                            services.AddSingleton(interfaceType, type);
                        }
                    }
                }

                foreach (var type in allTypes)
                {
                    if (typeof(IScopedDependency).IsAssignableFrom(type) && type.IsClass && !type.IsAbstract)
                    {
                        var interfaceTypes = type.GetInterfaces().Where(p => p.FullName != null && !p.FullName.Contains("IScopedDependency"));
                        foreach (var interfaceType in interfaceTypes)
                        {
                            services.AddScoped(interfaceType, type);
                        }
                    }
                }
            }
        }

        public static void PluginServiceRegister(this IServiceCollection services, string pluginPath = "")
        {
            if (pluginPath.IsNullOrWhiteSpace())
            {
                pluginPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Plugins");
            }
            var assemblies = GetAssembliesFromFolder(pluginPath);
            ServiceRegister(services, assemblies.ToArray());
        }

        public static IEnumerable<Assembly> GetAssembliesFromFolder(string folderPath)
        {
            var directory = new DirectoryInfo(folderPath);
            if (!directory.Exists) return Enumerable.Empty<Assembly>();

            var files = directory.GetFiles("*.dll");

            var assemblies = new List<Assembly>();
            foreach (var file in files)
            {
                try
                {
                    var assembly = Assembly.LoadFrom(file.FullName);
                    assemblies.Add(assembly);
                }
                catch (Exception ex)
                {
                    Console.WriteLine($"Error loading assembly from {file.FullName}: {ex.Message}");
                }
            }

            return assemblies;
        }
    }
}