using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Autofac;
using System.Reflection;

namespace EMIS.Utility
{
    public class ReflectorHelper
    {
        /// <summary>
        /// Services方法
        /// </summary>
        /// <param name="methodFullName"></param>
        /// <param name="methodParameters"></param>
        /// <returns></returns>
        public static object RunMethod(string methodFullName, params object[] methodParameters)
        {
            IList<string> names = methodFullName.Split('.').ToList();
            if (names.Count <= 2)
            {
                throw (new Exception("方法名输入错误。"));
            }

            string methodName = names.Last();
            names.RemoveAt(names.Count - 1);
            string className = string.Join(".", names);
            string classShortName = names.Last();
            var classType = Assembly.Load("EMIS.CommonLogic").GetType(className);
            if (classType == null)
            {
                classType = Assembly.Load("EMIS.ICommonLogic").GetType(className);
            }

            Type myInterface;
            if (classType.IsInterface)
            {
                myInterface = classType;
            }
            else
            {
                myInterface = classType.GetInterfaces().Where(x => x.Name == "I" + classShortName).FirstOrDefault();
            }
            using (var container = AutofacHelper.Container.BeginLifetimeScope())
            {
                var myClass = container.Resolve(myInterface);

                var myMethod = myClass.GetType().GetMethod(methodName);
                try
                {
                    return myMethod.Invoke(myClass, methodParameters);
                }
                catch (Exception ex)
                {
                    throw (new Exception(ex.InnerException.Message));
                }
            }
        }

        /// <summary>
        /// DAL方法
        /// </summary>
        /// <param name="methodFullName"></param>
        /// <param name="methodParameters"></param>
        /// <returns></returns>
        public static object RunDALMethod(string methodFullName, params object[] methodParameters)
        {
            IList<string> names = methodFullName.Split('.').ToList();
            if (names.Count <= 2)
            {
                throw (new Exception("方法名输入错误。"));
            }

            string methodName = names.Last();
            names.RemoveAt(names.Count - 1);
            string className = string.Join(".", names);
            string classShortName = names.Last();
            var classType = Assembly.Load("EMIS.DataLogic").GetType(className);

            using (var container = AutofacHelper.Container.BeginLifetimeScope())
            {
                var myClass = container.Resolve(classType);

                var myMethod = myClass.GetType().GetMethod(methodName);
                try
                {
                    return myMethod.Invoke(myClass, methodParameters);
                }
                catch (Exception ex)
                {
                    throw (new Exception(ex.InnerException.Message));
                }
            }
        }
    }
}