using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Text;
using System.Threading.Tasks;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

namespace ICSSoft.Frame.Common
{
    public class KodboxHelper
    {
        public string Name { get; set; }
        private readonly string kodboxUrl = "http://127.0.0.1:88/kodbox122";
        public string accessToken { get; set; }
        private readonly HttpClient hClient;

        public KodboxHelper(string url)
        {
            this.kodboxUrl = url;
            var handler = new HttpClientHandler() { UseCookies = true };
            this.hClient = new HttpClient(handler);
            //hClient.DefaultRequestHeaders.Add("user-agent", "Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:57.0) Gecko/20100101 Firefox/57.0");
            //hClient.DefaultRequestHeaders.Add("Keep-Alive", "timeout=600");

        }
        public void Dispose()
        {
            if (this.hClient != null)
            {
                this.hClient.Dispose();
            }
        }
        /// <summary>
        /// GET请求可道云,返回json字符串
        /// </summary>
        /// <param name="apiUrl">请求地址</param>
        /// <returns>json</returns>
        internal string GetKodApiAsync(string apiUrl)
        {
            var res = hClient.GetStringAsync(apiUrl);
            return res.Result;
        }

        //internal async Task<string> AwaitKodApiAsync(string apiUrl)
        //{
        //    try
        //    {
        //        var res = await hClient.GetStringAsync(apiUrl);
        //        return res;
        //    }
        //    catch (HttpRequestException ex)
        //    {
        //        throw new Exception(ex.Message + "\r\n" + ex.InnerException?.Message ?? "");
        //    }
        //    catch (Exception ex)
        //    {
        //        throw ex;
        //    }
        //}

        /// <summary>
        /// POST请求可道云,返回json字符串
        /// </summary>
        /// <param name="apiUrl">请求地址</param>
        /// <param name="dic">参数字典</param>
        /// <returns></returns>
        internal string PostKodApi(string apiUrl, Dictionary<string, string> dic)
        {
            dic.Add("accessToken", this.accessToken);
            HttpContent content = new FormUrlEncodedContent(dic);
            content.Headers.ContentType = new MediaTypeHeaderValue("application/x-www-form-urlencoded");
            //content.Headers.Add("X-CSRF-TOKEN",this.accessToken);
            //hClient.DefaultRequestHeaders.Accept.Clear();
            //hClient.DefaultRequestHeaders.Add("X-CSRF-Token",this.accessToken);
            HttpResponseMessage response = hClient.PostAsync(apiUrl, content).Result;
            //response.Headers.Add("Cookie", "session_id=7258abbd1544b6c530a9f406d3e600239bd788fb");
            string res = response.Content.ReadAsStringAsync().Result;
            return res;
        }

        /// <summary>
        /// 请求方式：GET;
        /// 请求地址：http://server/?user/index/loginSubmit&name=[用户名]&password=[密码]
        /// 返回结果：
        /// {
        ///    "code": true,
        ///    "use_time": 0.009,
        ///    "data": "ok",
        ///    "info": "ad947n9kDU6nr1V22j7MewCHNWCrZ0GgMDnNyzjv2y58YImivhggVsZ4Xg"  //accessToken；
        /// }
        /// </summary>
        /// <returns></returns>
        public string Login(string kodboxUser, string kodboxrPwd)
        {
            var requestUrl = "{0}/?user/index/loginSubmit&name={1}&password={2}";
            requestUrl = string.Format(requestUrl, this.kodboxUrl, kodboxUser, kodboxrPwd);
            string res = GetKodApiAsync(requestUrl).ToString();
            JObject o = (JObject)JToken.Parse(res);
            this.accessToken = o.Last.Last.ToString();
            //var authenticationHeaderValue = new System.Net.Http.Headers.AuthenticationHeaderValue("bearer", this.accessToken);
            //Client.DefaultRequestHeaders.Authorization = authenticationHeaderValue;
            return res;
        }

        //public async Task<string> AwaitLoginAsync(string kodboxUser, string kodboxrPwd)
        //{
        //    var requestUrl = $"{kodboxUrl}/?user/index/loginSubmit&name={kodboxUser}&password={kodboxrPwd}";
        //    string res = await AwaitKodApiAsync(requestUrl);
        //    if (res.StartsWith("<html>")&& res.Contains("出错"))
        //    {
        //        throw new Exception(res);
        //    }
        //    JObject o = (JObject)JToken.Parse(res);
        //    this.accessToken = o.Last.Last.ToString();
        //    return res;
        //}

        /// <summary>
        /// 请求方式：GET 请求地址：http://server/index.php?user/index/logout
        /// 如果是浏览器: 则用js请求一下退出接口或跳转到改地址即可; 如果纯接口访问: 上述地址追加 &accessToken=xxxx; 则该accessToken失效;
        /// </summary>
        /// <returns></returns>
        public string Logout(bool @throw)
        {
            if (this.accessToken == "" && @throw)
            {
                throw new Exception("未登录!");
            }
            var requestUrl = this.kodboxUrl + "/index.php?user/index/logout&accessToken={this.accessToken}";
            return GetKodApiAsync(requestUrl).ToString();
        }

        // 获取文件列表

        public string GetList(string path)
        {
            Dictionary<string, string> dic = new Dictionary<string, string>();
            dic.Add("path", path);
            string requestUrl = this.kodboxUrl + "/index.php?explorer/list/path";
            return PostKodApi(requestUrl, dic);
        }
        /// <summary>
        /// 在指定目录下查找指定类型文件,返回displayPath相符文件的source路径
        /// </summary>
        /// <param name="rootPath">搜索起始目录</param>
        /// <param name="fileType">文件类型</param>
        /// <param name="matchingPath1">匹配路径</param>
        /// <returns></returns>
        public List<string> GetSourcePath(string rootPath, string fileType, string matchingPath1, string matchingPath2, string matchingPath3, out string searchRes)
        {
            List<string> listReturn = new List<string>();
            string displaypath = "";
            searchRes = "";
            string respath = "";
            string path = "{search}/";
            List<string> list = new List<string>()
            {
                "parentPath="+rootPath,
                "fileType="+fileType
                //"accessToken="+this.accessToken
            };
            path += String.Join("@", list);
            Dictionary<string, string> dic = new Dictionary<string, string>();
            dic.Add("path", path);
            string requestUrl = this.kodboxUrl + "/index.php?explorer/list/path";
            searchRes = PostKodApi(requestUrl, dic);
            KodboxReturn item = JsonConvert.DeserializeObject<KodboxReturn>(searchRes);
            if (!item.code)
            {
                throw new Exception(item.data.ToString());
            }
            SearchDataIntity data = JsonConvert.DeserializeObject<SearchDataIntity>(item.data.ToString());
            if (data.fileList.Count == 0)
            {
                throw new Exception("目录" + rootPath + "没有类型" + fileType + "文件");
            }
            SearchParentIntity parent = data.searchParent;
            displaypath = Path.Combine(parent.pathDisplay, matchingPath1);

            List<FileIntity> filelist = data.fileList;
            foreach (FileIntity info in filelist)
            {
                if (info.pathDisplay.StartsWith(displaypath) && info.pathDisplay.Contains(matchingPath2) && info.pathDisplay.Contains(matchingPath3))
                {
                    respath = info.path + "|" + info.name + "|" + info.pathDisplay;// displaypath;
                    listReturn.Add(respath);
                }
            }
            if (listReturn.Count == 0)
            {
                throw new Exception("文件夹不存在:" + displaypath);
            }
            return listReturn;
        }

        //public KodSearch GetSourcePath(string rootPath, string fileType, string displaypath)
        //{
        //    string path = "{search}/";
        //    List<string> list = new List<string>()
        //    {
        //        "parentPath="+rootPath,
        //        "fileType="+fileType
        //    };
        //    path += String.Join("@", list);
        //    Dictionary<string, string> dic = new Dictionary<string, string>();
        //    dic.Add("path", path);
        //    string requestUrl =this.kodboxUrl+"/index.php?explorer/list/path";
        //    string searchRes = PostKodApi(requestUrl, dic);
        //    KodSearch s = JsonConvert.DeserializeObject<KodSearch>(searchRes);
        //    return s;
        //}

        //public KodIntity GetSourcePath(string rootPath, string fileType, string displaypath,int i=0)
        //{
        //    string path = "{search}/";
        //    List<string> list = new List<string>()
        //    {
        //        "parentPath="+rootPath,
        //        "fileType="+fileType
        //    };
        //    path += String.Join("@", list);
        //    Dictionary<string, string> dic = new Dictionary<string, string>();
        //    dic.Add("path", path);
        //    string requestUrl = $"{kodboxUrl}/index.php?explorer/list/path";
        //    string searchRes = PostKodApi(requestUrl, dic);
        //    KodIntity s = JsonConvert.DeserializeObject<KodIntity>(searchRes);
        //    return s;
        //}
        //搜索
        //path: '{search}/' + param.join('@');
        //// 搜索条件参数：
        //var param = [
        //'parentPath',   // 选择全部文件夹时为空
        //'words',        // 搜索关键字
        //'sizeFrom',     // 大小，单位B
        //'sizeTo',
        //'timeFrom',     // 时间，格式：2020/02/21
        //'timeTo',
        //'fileType',     // 文件类型，根据文件列表获取，参数：path={block:fileType}
        //'createUser'    // userID
        //]
        /// <summary>
        /// 下载
        /// </summary>
        /// <param name="source">如{source:255642}/</param>
        /// <param name="savePath">保存路径,如D:/myDoc/abc</param>
        /// <param name="saveName">123.pdf</param>
        /// <returns></returns>
        public string DownFile(string source, string savePath, string saveName)
        {
            string requestUrl = this.kodboxUrl + "/index.php?explorer/index/fileOut&path={0}&download=1";
            requestUrl = string.Format(requestUrl, source);
            //string requestUrl = $"{kodboxUrl}/index.php?explorer/fileDownload&path={source}";
            string msg = "";
            bool succ = GetFileFromKod(requestUrl, savePath, saveName, out msg);
            if (succ)
            {
                return "OK";
            }
            return msg;
        }

        //16. 文件下载
        //请求方式：GET
        //请求地址：http://server/index.php?explorer/index/fileOut
        //请求参数：&path={source:1031}/&download=1
        internal bool GetFileFromKod(string apiUrl, string filePath, string filename, out string msg)
        {
            msg = "OK";
            bool suc = false;
            // FileStream fs;
            try
            {
                Uri uri = new Uri(apiUrl);
                HttpResponseMessage responseMessage = hClient.GetAsync(uri).Result;
                if (responseMessage.IsSuccessStatusCode)
                {
                    if (responseMessage.Content.Headers.ContentType.ToString().Contains("application/json"))
                    {
                        suc = false;
                        var res = responseMessage.Content.ReadAsStringAsync().Result;
                        DownFailInfo dfi = JsonConvert.DeserializeObject<DownFailInfo>(res);
                        msg = "下载文件:" + dfi.data;
                    }
                    else
                    {
                        if (!Directory.Exists(filePath))
                        {
                            Directory.CreateDirectory(filePath);
                        }
                        //如果文件被本地程序占用,无法下载
                        using (var fs = File.Create(Path.Combine(filePath, filename)))
                        {
                            var streamFromService = responseMessage.Content.ReadAsStreamAsync().Result;
                            streamFromService.CopyTo(fs);

                        }
                        suc = true;
                    }
                }
                else
                {
                    suc = false;
                    msg = responseMessage.StatusCode.ToString();
                }
                //byte[] bytes = XXX.Result;
                //string res = System.Text.Encoding.UTF8.GetString(bytes);
                //JObject o = (JObject)JToken.Parse(res);
                //if (o == null)
                //{
                //    throw new Exception("错误请求");
                //}
                //if (o["code"].ToString() == "10001" || o["code"].ToString().ToLower() == "false")
                //{
                //    throw new Exception(o["data"].ToString());
                //}
                //using (fs = new FileStream(Path.Combine(filePath, filename), FileMode.Create))
                //{
                //    fs.Write(bytes, 0, bytes.Length);
                //}

            }
            catch (Exception ex)
            {
                suc = false;
                msg = ex.Message;
            }
            return suc;

        }
        //16. 文件下载
        //请求方式：GET
        //请求地址：http://server/index.php?explorer/index/fileOut
        //请求参数：&path={source:1031}/&download=1
    }

    public class KodboxReturn
    {
        public bool code { get; set; }
        public string timeUse { get; set; }
        public string timeNow { get; set; }
        public object data { get; set; }

    }
    public class SearchDataIntity
    {
        public object pageInfo { get; set; }
        public object folderList { get; set; }
        public List<FileIntity> fileList { get; set; }

        public SearchParentIntity searchParent { get; set; }

    }
    public class SearchParentIntity
    {
        public string name { get; set; }
        public string path { get; set; }
        public string type { get; set; }
        public string pathDisplay { get; set; }
    }
    public class FileIntity
    {
        public string name { get; set; }
        public string path { get; set; }
        public string type { get; set; }
        public string ext { get; set; }
        public string pathDisplay { get; set; }
        public string parentLevel { get; set; }
    }
    public class DownFailInfo
    {
        public string code { get; set; }
        public string timeUse { get; set; }
        public string timeNow { get; set; }
        public string data { get; set; }
        public string info { get; set; }
    }
}