//<?xml version="1.0" encoding="utf-8"?>
//<xml>
// <ToUserName><![CDATA[gh_a96a4a619366]]></ToUserName>
// <FromUserName><![CDATA[olPjZjsXuQPJoV0HlruZkNzKc91E]]></FromUserName>
// <CreateTime>1357986928</CreateTime>
// <MsgType><![CDATA[text]]></MsgType>
// <Content><![CDATA[中文]]></Content>
// <MsgId>5832509444155992350</MsgId>
//</xml>
/// <summary>
/// 获取XDocument转换后的IRequestMessageBase实例。
/// 如果MsgType不存在，抛出UnknownRequestMsgTypeException异常
/// </summary>
/// <returns></returns>
public static IRequestMessageBase GetRequestEntity(XDocument doc, PostModel postModel = null)
{
RequestMessageBase requestMessage = null;
RequestMsgType msgType;
try
{
msgType = MsgTypeHelper.GetRequestMsgType(doc);
switch (msgType)
{
case RequestMsgType.Text:
requestMessage = new RequestMessageText();
break;
case RequestMsgType.Location:
requestMessage = new RequestMessageLocation();
break;
case RequestMsgType.Image:
requestMessage = new RequestMessageImage();
break;
case RequestMsgType.Voice:
requestMessage = new RequestMessageVoice();
break;
case RequestMsgType.Video:
requestMessage = new RequestMessageVideo();
break;
case RequestMsgType.Link:
requestMessage = new RequestMessageLink();
break;
case RequestMsgType.ShortVideo:
requestMessage = new RequestMessageShortVideo();
break;
case RequestMsgType.Event:
//判断Event类型
switch (doc.Root.Element("Event").Value.ToUpper())
{
case "ENTER"://进入会话
requestMessage = new RequestMessageEvent_Enter();
break;
case "LOCATION"://地理位置
requestMessage = new RequestMessageEvent_Location();
break;
case "SUBSCRIBE"://订阅（关注）
requestMessage = new RequestMessageEvent_Subscribe();
break;
case "UNSUBSCRIBE"://取消订阅（关注）
requestMessage = new RequestMessageEvent_Unsubscribe();
break;
case "CLICK"://菜单点击
requestMessage = new RequestMessageEvent_Click();
break;
case "SCAN"://二维码扫描
requestMessage = new RequestMessageEvent_Scan();
break;
case "VIEW"://URL跳转
requestMessage = new RequestMessageEvent_View();
break;
case "MASSSENDJOBFINISH":
requestMessage = new RequestMessageEvent_MassSendJobFinish();
break;
case "TEMPLATESENDJOBFINISH"://模板信息
requestMessage = new RequestMessageEvent_TemplateSendJobFinish();
break;
case "SCANCODE_PUSH"://扫码推事件(scancode_push)
requestMessage = new RequestMessageEvent_Scancode_Push();
break;
case "SCANCODE_WAITMSG"://扫码推事件且弹出“消息接收中”提示框(scancode_waitmsg)
requestMessage = new RequestMessageEvent_Scancode_Waitmsg();
break;
case "PIC_SYSPHOTO"://弹出系统拍照发图(pic_sysphoto)
requestMessage = new RequestMessageEvent_Pic_Sysphoto();
break;
case "PIC_PHOTO_OR_ALBUM"://弹出拍照或者相册发图（pic_photo_or_album）
requestMessage = new RequestMessageEvent_Pic_Photo_Or_Album();
break;
case "PIC_WeiXin"://弹出微信相册发图器(pic_WeiXin)
requestMessage = new RequestMessageEvent_Pic_WeiXin();
break;
case "LOCATION_SELECT"://弹出地理位置选择器（location_select）
requestMessage = new RequestMessageEvent_Location_Select();
break;
case "CARD_PASS_CHECK"://卡券通过审核
requestMessage = new RequestMessageEvent_Card_Pass_Check();
break;
case "CARD_NOT_PASS_CHECK"://卡券未通过审核
requestMessage = new RequestMessageEvent_Card_Not_Pass_Check();
break;
case "USER_GET_CARD"://领取卡券
requestMessage = new RequestMessageEvent_User_Get_Card();
break;
case "USER_DEL_CARD"://删除卡券
requestMessage = new RequestMessageEvent_User_Del_Card();
break;
case "KF_CREATE_SESSION"://多客服接入会话
requestMessage = new RequestMessageEvent_Kf_Create_Session();
break;
case "KF_CLOSE_SESSION"://多客服关闭会话
requestMessage = new RequestMessageEvent_Kf_Close_Session();
break;
case "KF_SWITCH_SESSION"://多客服转接会话
requestMessage = new RequestMessageEvent_Kf_Switch_Session();
break;
case "POI_CHECK_NOTIFY"://审核结果事件推送
requestMessage = new RequestMessageEvent_Poi_Check_Notify();
break;
case "WIFICONNECTED"://Wi-Fi连网成功事件
requestMessage = new RequestMessageEvent_WifiConnected();
break;
case "USER_CONSUME_CARD"://卡券核销
requestMessage = new RequestMessageEvent_User_Consume_Card();
break;
case "USER_ENTER_SESSION_FROM_CARD"://从卡券进入公众号会话
requestMessage = new RequestMessageEvent_User_Enter_Session_From_Card();
break;
case "USER_VIEW_CARD"://进入会员卡
requestMessage = new RequestMessageEvent_User_View_Card();
break;
default://其他意外类型（也可以选择抛出异常）
requestMessage = new RequestMessageEventBase();
break;
}
break;
default:
throw new UnknownRequestMsgTypeException(string.Format("MsgType：{0} 在RequestMessageFactory中没有对应的处理程序！", msgType), new ArgumentOutOfRangeException());//为了能够对类型变动最大程度容错（如微信目前还可以对公众账号suscribe等未知类型，但API没有开放），建议在使用的时候catch这个异常
}
EntityHelper.FillEntityWithXml(requestMessage, doc);
}
catch (ArgumentException ex)
{
throw new WeiXinException(string.Format("RequestMessage转换出错！可能是MsgType不存在！，XML：{0}", doc.ToString()), ex);
}
return requestMessage;
}
/// <summary>
/// 退订
/// 实际上用户无法收到非订阅账号的消息，所以这里可以随便写。
/// unsubscribe事件的意义在于及时删除网站应用中已经记录的OpenID绑定，消除冗余数据。并且关注用户流失的情况。
/// </summary>
/// <returns></returns>
public override IResponseMessageBase OnEvent_UnsubscribeRequest(RequestMessageEvent_Unsubscribe requestMessage)
{
var responseMessage = base.CreateResponseMessage<ResponseMessageText>();
responseMessage.Content = "有空再来";
return responseMessage;
}