using Microsoft.Extensions.DependencyInjection;
using System.Collections.Generic;
using System.IO;
using System;
using System.Reflection;
using System.Linq;
using System.Text.RegularExpressions;

namespace Tiger.Api.Controllers
{
    public static class Extension
    {
        public static IMvcBuilder AddExtraControllers(this IMvcBuilder builder)
        {
            // 动态加载多个dll
            string[] assemblyPattern = new[] { "Tiger.Controllers([.].*)*.dll" };

            List<Assembly> assemblies = new List<Assembly>();
            assemblies.AddRange(
                Directory.EnumerateFiles(AppDomain.CurrentDomain.BaseDirectory, "*.dll", SearchOption.AllDirectories)
                              .Where(filename => assemblyPattern.Any(pattern => Regex.IsMatch(filename, pattern)))
                              .Select(Assembly.LoadFrom)
            );

            foreach (var assembly in assemblies)
            {
                builder = builder.AddApplicationPart(assembly);
            }

            return builder;

            //var assembly = Assembly.Load("Tiger.Controllers.WMS");
            //return builder.AddApplicationPart(assembly);
        }
    }
}