using System;
using System.CodeDom;
using System.CodeDom.Compiler;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Reflection;
using System.Text;
using System.Web.Services.Description;
using System.Xml.Serialization;

namespace EPB.Common
{
    public class VedioWebService
    {


        public static object CmsServiceInstance { get; set; }
        public static Type CmsServiceType { get; set; }
        public static Assembly CmsServiceAssembly { get; set; }



        /// <summary>
        /// 初始化webservice应用
        /// </summary>
        /// <param name="serviceUrl"></param>
        /// <returns></returns>
        public static object GetServicesResult(string serviceUrl)
        {
            #region 动态调用webservice
            try
            {
                // 1. 使用 WebClient 下载 WSDL 信息。
                WebClient web = new WebClient();
                using (Stream stream = web.OpenRead(serviceUrl))
                {
                    // 2. 创建和格式化 WSDL 文档。
                    ServiceDescription description = ServiceDescription.Read(stream);

                    // 3. 创建客户端代理代理类。
                    ServiceDescriptionImporter importer = new ServiceDescriptionImporter();
                    importer.ProtocolName = "Soap"; // 指定访问协议。
                    importer.Style = ServiceDescriptionImportStyle.Client; // 生成客户端代理。
                    importer.CodeGenerationOptions = CodeGenerationOptions.GenerateProperties | CodeGenerationOptions.GenerateNewAsync;

                    importer.AddServiceDescription(description, null, null); // 添加 WSDL 文档。

                    // 4. 使用 CodeDom 编译客户端代理类。
                    CodeNamespace nmspace = new CodeNamespace(); // 为代理类添加命名空间，缺省为全局空间。
                    CodeCompileUnit unit = new CodeCompileUnit();
                    unit.Namespaces.Add(nmspace);
                    ServiceDescriptionImportWarnings warning = importer.Import(nmspace, unit);
                    CodeDomProvider provider = CodeDomProvider.CreateProvider("CSharp");

                    CompilerParameters parameter = new CompilerParameters();
                    parameter.GenerateExecutable = false;
                    parameter.GenerateInMemory = true;
                    parameter.ReferencedAssemblies.Add("System.dll");
                    parameter.ReferencedAssemblies.Add("System.XML.dll");
                    parameter.ReferencedAssemblies.Add("System.Web.Services.dll");
                    parameter.ReferencedAssemblies.Add("System.Data.dll");

                    CompilerResults result = provider.CompileAssemblyFromDom(parameter, unit);

                    if (!result.Errors.HasErrors)
                    {
                        CmsServiceAssembly = result.CompiledAssembly;
                        CmsServiceType = CmsServiceAssembly.GetType("CmsService");
                        CmsServiceInstance = Activator.CreateInstance(CmsServiceType);
                    }
                }
                return CmsServiceInstance;
            }
            catch { return null; }
            #endregion
        }

        /// <summary>
        /// 登录（视频）
        /// </summary>
        /// <param name="serviceUrl"></param>
        /// <param name="sessionid"></param>
        /// <returns></returns>
        public static string InitAndUserlogin(string serviceUrl, string code)
        {
             
            GetServicesResult(serviceUrl);
            if (CmsServiceInstance != null)
            {
             
                MethodInfo method = CmsServiceType.GetMethod("getStreamServiceByCameraIndexCodes");
                 
                var SeeResult = method.Invoke(CmsServiceInstance, new object[] { "123", 123, code, 100001 });


                LogHelper.LogDataHelper.Error("SeeResult:" + SeeResult);
                return SeeResult.ToString();

            }
            return null;
        }


    }
}