using RiaService.Common;
using System;
using System.Configuration;
using System.IO;
using System.Linq;
using System.Net;
using System.Web;
using System.Web.Http;
using WX.CRM.Common;

namespace RiaService
{
    public class CallRecordController : ApiController
    {
        public string GetCallFile(string serverID, string file)
        {
            if (string.IsNullOrEmpty(serverID) || string.IsNullOrEmpty(file))
            {
                return null;
            }

            RecordServerConfig configUtil = ConfigurationManager.GetSection("RecordServer") as RecordServerConfig;
            if (configUtil == null)
            {
                LogHelper.Error("CallRecord.GetCallFile错误，web.config录音服务器节错误");
                return null;
            }
            var server = configUtil.ServerList.GetServerList().FirstOrDefault(obj => obj.ServerID == serverID);
            if (null == server)
            {
                LogHelper.Error("CallRecord.GetCallFile错误，录音服务器：" + serverID + "不存在");
                return null;
            }
            string localurl = "..//CallRecordFile//" + file;
            localurl = HttpContext.Current.Server.MapPath(localurl);
            if (ChkRemoteFileExists(localurl))//文件已经存在
            {
                return localurl;
            }
            else
            {
                string remoteUri = server.Remote + server.From + "\\" + file;

                string d = localurl.Substring(0, localurl.LastIndexOf("\\", System.StringComparison.Ordinal));

                if (!Directory.Exists(d))
                {
                    Directory.CreateDirectory(d);
                }

                try
                {
                    int status = NetworkConnection.Connect(server.Remote + server.From, "Z:", server.UserName, server.Password);
                    if (status == (int)ERROR_ID.ERROR_SUCCESS)
                    {
                        if (!File.Exists(localurl))
                        {
                            NetworkConnection.CopyFiles(remoteUri, localurl);
                            if (!File.Exists(localurl))
                            {
                                remoteUri = server.Remote + server.To + "\\" + file;
                                NetworkConnection.CopyFiles(remoteUri, localurl);
                            }
                        }
                    }
                    else
                    {
                        LogHelper.Error("连接服务器失败:" + server.Remote + server.From);
                    }
                    NetworkConnection.Disconnect("Z:");
                    return localurl;
                }
                catch (Exception ex)
                {
                    LogHelper.Error(ex);
                    return null;
                }
            }
        }

        //判断远程文件是否存在
        private bool ChkRemoteFileExists(string fileUrl)
        {
            bool result = false;//判断结果

            WebResponse response = null;
            try
            {
                WebRequest req = WebRequest.Create(fileUrl);
                response = req.GetResponse();
                result = true;
            }
            catch (Exception ex)
            {
                result = false;
            }
            finally
            {
                if (response != null)
                {
                    response.Close();
                }
            }

            return result;
        }
    }
}