#region 描述
//-----------------------------------------------------------------------------
// 文 件 名: BaiduApiService
// 作    者：ChinaYi
// 创建时间：2014/6/10 11:09:07
// 描    述：用于调用百度API 
// 版    本：4.0.30319.1022
//-----------------------------------------------------------------------------
// 历史更新纪录
//-----------------------------------------------------------------------------
// 版    本：           修改时间：           修改人：          
// 修改内容：
//-----------------------------------------------------------------------------
// Copyright (C) 20013-2014 泛美商务
//-----------------------------------------------------------------------------
#endregion

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Xml;
using Models;
using System.Text.RegularExpressions;

namespace DAL
{
  public  class BaiduApiService
    {
        public readonly string Key_Ak = "1Q1c6zkFGoapVIAF30a4OdKC";   //访问服务的key
        public string outPut = "xml";   //决定服务返回数据的类型，分别为xml和json
        public string url = "";         //服务路径
        /// <summary>
        ///天气查询
        /// </summary>
        public List<WeatherForecast> WeatherInquiry(string address) 
        {
            url = string.Format("http://api.map.baidu.com/telematics/v3/weather?location={0}&output={1}&ak={2}",address,outPut,Key_Ak);
            WebClient client = new WebClient();
            client.Encoding = Encoding.UTF8;     //编码格式
            string responseTest = client.DownloadString(url);
            XmlDocument doc = new XmlDocument();
            doc.LoadXml(responseTest);

            List<WeatherForecast> list = new List<WeatherForecast>();
            
            try
            {
                XmlNodeList nodeList = doc.GetElementsByTagName("results");    //第一层节点
                foreach (XmlNode item in nodeList)
                {
                    //第二层的节点
                    
                    //wf.CurrentCity = item.SelectSingleNode("currentCity").InnerText;
                    XmlNodeList date = doc.GetElementsByTagName("date");
                    XmlNodeList weather = doc.GetElementsByTagName("weather");
                    XmlNodeList wind = doc.GetElementsByTagName("wind");
                    XmlNodeList temperature = doc.GetElementsByTagName("temperature");

                    for (int i = 1; i < date.Count; i++)
                    {
                        WeatherForecast wf = new WeatherForecast();
                        wf.CurrentCity = item.SelectSingleNode("currentCity").InnerText;
                        wf.Date = date[i].InnerText;
                        wf.Weather = weather[i - 1].InnerText;
                        wf.Wind = wind[i - 1].InnerText;
                        wf.Temperature = temperature[i - 1].InnerText;
                        list.Add(wf);
                    }
                    //foreach (XmlNode nodeItem in nodeList)
                    //{
                    //    //wf.Date = nodeItem.SelectSingleNode("date").InnerText;
                    //    //wf.DayPictureUrl = nodeItem.SelectSingleNode("dayPictureUrl").InnerText;
                    //    //wf.NightPictureUrl = nodeItem.SelectSingleNode("nightPictureUrl").InnerText;
                    //    //wf.Weather = nodeItem.SelectSingleNode("weather").InnerText;
                    //    //wf.Wind = nodeItem.SelectSingleNode("wind").InnerText;
                    //    //wf.Temperature = nodeItem.SelectSingleNode("temperature").InnerText;
                        
                    //}
                    
                }

                
            }
            catch (Exception ex)
            {  
                //禁止弹出黄页，跳向有友好提示的页面
                throw;
            }
          
            return list;
        }

        
        /// <summary>
        /// 获取当前所在的地理位置
        /// </summary>
        /// <param name="Jwd">经纬度</param>
        /// <returns></returns>
        //public string GetCityinfo(string jd,string wd)
        //{
        //    WebClient client = new WebClient();//webclient客户端对象
        //    url = string.Format("http://api.map.baidu.com/geocoder?location={0},{1}&output={2}&key={3}",jd,wd,outPut,Key_Ak);
            
        //    client.Encoding = Encoding.UTF8;    //编码格式 
        //    string responseTest = client.DownloadString(url);   //下载xml响应数据  
        //    return responseTest;
        //}


        /// <summary>
        /// 周边检索
        /// </summary>
        /// <param name="address"></param>
        /// <param name="Tag"></param>
        /// <returns></returns>
        public List<VicinitySearch> VicinitySearch(string address,string Tag) 
        {
            //根据城市获取经纬度
            url = string.Format("http://api.map.baidu.com/telematics/v3/geocoding?keyWord={0}&cityName={1}&out_coord_type=gcj02&ak={2}", address, address, Key_Ak);
            WebClient client = new WebClient();
            client.Encoding = Encoding.UTF8;     //编码格式
            string jwd = client.DownloadString(url);//下载xml响应数据
            XmlDocument doc = new XmlDocument();
            doc.LoadXml(jwd);
            string lat = "";
            string lng = "";

            try
            {
                XmlNodeList nlist = doc.GetElementsByTagName("location");
                foreach (XmlNode item in nlist)
                {
                    lat = item.SelectSingleNode("lat").InnerText;
                    lng = item.SelectSingleNode("lng").InnerText;
                }
            }
            catch (Exception ex)
            {
                //该处禁止弹出黄页，请处理！
                throw;
            }
            

            //周边检索
            url = string.Format("http://api.map.baidu.com/telematics/v3/local?location={0},{1}&keyWord={2}&output=xml&ak={3}",lat,lng, Tag, Key_Ak);
            string responseTest = client.DownloadString(url);

            List<VicinitySearch> list = new List<Models.VicinitySearch>();
            XmlDocument xdoc = new XmlDocument();
            xdoc.LoadXml(responseTest);
            try
            {
                XmlNodeList nodeList = xdoc.GetElementsByTagName("point");
                foreach (XmlNode item in nodeList)
                {
                    VicinitySearch vs = new VicinitySearch();
                    vs.District = item.SelectSingleNode("district").InnerText;
                    nodeList = xdoc.GetElementsByTagName("additionalInfo");
                    foreach (XmlNode node in nodeList)
                    {
                        vs.Address = node.SelectSingleNode("address").InnerText;
                        vs.Name = node.SelectSingleNode("name").InnerText;
                        vs.Price = node.SelectSingleNode("price").InnerText;
                        vs.Tag = node.SelectSingleNode("tag").InnerText;
                        vs.Telephone = node.SelectSingleNode("telephone").InnerText;
                    }
                    list.Add(vs);
                }
            }
            catch (Exception ex)
            {
                //该处禁止弹出黄页，请处理
                throw;
            }
            
            return list;
        }

        
        /// <summary>
        /// 景点查询
        /// </summary>
        /// <param name="address"></param>
        /// <returns></returns>
        public Attractions AttractionsInquiry(string address)
        {
            url = string.Format("http://api.map.baidu.com/telematics/v3/travel_attractions?id={0}&ak={1}", address, Key_Ak);
            WebClient client = new WebClient();
            client.Encoding = Encoding.UTF8;     //编码格式
            string responseTest = client.DownloadString(url);
            //解析xml文件并封装到实体中
            Attractions att = new Attractions();
            XmlDocument doc = new XmlDocument();
            //responseTest = responseTest.Replace("\n", "");
            responseTest = Regex.Replace(responseTest, "[\\x10]", " ");
            doc.LoadXml(responseTest);

            XmlNodeList nodeList = doc.GetElementsByTagName("result");    //第一层节点
            foreach (XmlNode item in nodeList)
            {
                att.Name = item.SelectSingleNode("name").InnerText;
                att.Summary = item.SelectSingleNode("abstract").InnerText;
                att.Description = item.SelectSingleNode("description").InnerText;
            }

            nodeList = doc.GetElementsByTagName("ticket_info");           //第二层节点
            foreach (XmlNode item in nodeList)
            {
                att.Price = item.SelectSingleNode("price").InnerText;
                att.Open_time = item.SelectSingleNode("open_time").InnerText;
            }
            nodeList = doc.GetElementsByTagName("item");                 //第二层节点
            foreach (XmlNode item in nodeList)
            {
                att.TicketsIncentives = item.SelectSingleNode("description").InnerText;
            }

            return att;
        }
    }
}