using System;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Text;
using System.Web.Http;
using System.Web.Http.Results;
using WX.CRM.Common;
using WxFile.Api.Handle;

namespace WxFile.Api.Controllers
{
    public class MessageController : ApiController
    {
        private static string _shareName;
        private static string _isShare;
        public MessageController()
        {
            _isShare = Utility.GetSettingByKey("IsShare");
            if (!string.IsNullOrEmpty(_isShare))
            {
                //LogHelper.Info(_isShare);
                try
                {
                    _shareName = Utility.GetSettingByKey("NetUseShareName") ?? @"\\192.168.1.171\weixin";
                    string user = Utility.GetSettingByKey("NetUseUser") ?? @"192.168.1.171\admin";
                    string pwd = Utility.GetSettingByKey("NetUsePwd") ?? "read,./1";
                    NetUseHelper.Build(_shareName, user, pwd, string.Empty);//不指定盘符，避免引起盘符被占用的错误
                }
                catch (Exception e)
                {
                    LogHelper.Error(e.ToString());
                }
            }
        }
        /// <summary>
        /// 获取json文件
        /// </summary>
        /// <param name="jobusername"></param>
        /// <param name="filename"></param>
        /// <returns></returns>
        [Route("Message/{jobusername}/{filename}")]
        [HttpGet]
        public HttpResponseMessage GetMessage(string jobusername, string filename)
        {
            string filepath = _shareName + @"\Message\" + jobusername + "\\" + filename;
            //LogHelper.Info(filepath);
            if (!File.Exists(filepath))
            {
                return new HttpResponseMessage { Content = new StringContent("", System.Text.Encoding.UTF8, "application/json") };
            }
            StringBuilder cld = new StringBuilder();
            using (StreamReader sr = new StreamReader(filepath))
            {
                string line;
                // 从文件读取并显示行，直到文件的末尾 
                while ((line = sr.ReadLine()) != null)
                {
                    cld.Append(line);
                }
            }

            return new HttpResponseMessage { Content = new StringContent(cld.ToString(), System.Text.Encoding.UTF8, "application/json") };
            //return Content<string>(HttpStatusCode.OK, cld.ToString());
        }

        [Route("uploadfile_old/{month}/{filename}")]
        [HttpGet]
        public IHttpActionResult GetImg_old(string month, string filename)
        {
            string filepath = _shareName + @"\WXFILE\uploadfile\" + month + "\\" + filename;
            var f = new FileInfo(filepath);
            if (!f.Exists)
            {
                return new StatusCodeResult(HttpStatusCode.NotFound, this);
            }
            string contentype = System.Web.MimeMapping.GetMimeMapping(filepath);
            if (!filename.Contains("."))
            {
                contentype = "image/jpeg";
            }
            return new FileStreamResult(f.OpenRead(), contentype ?? "application/octet-stream");
        }

        [Route("uploadfile2/{month}/{filename}")]
        [HttpGet]
        public HttpResponseMessage GetImg2(string month, string filename)
        {
            try
            {
                string filepath = _shareName + @"\WXFILE\uploadfile\" + month + "\\" + filename;
                var f = new FileInfo(filepath);
                if (!f.Exists)
                {
                    return new HttpResponseMessage(HttpStatusCode.NoContent);
                }
                //var stream = new FileStream(filepath, FileMode.Open);
                //byte[] expectedBytes = new byte[stream.Length];


                //HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.OK);
                //response.Content = new StreamContent(stream);
                string contentype = System.Web.MimeMapping.GetMimeMapping(filepath);
                if (!filename.Contains("."))
                {
                    contentype = "image/jpeg";
                }
                HttpResponseMessage rsp = this.Request.CreateResponse(HttpStatusCode.OK);
                byte[] buffer = System.IO.File.ReadAllBytes(filepath);
                rsp.Content = new StreamContent(new MemoryStream(buffer));
                //rsp.Headers.Add("Content-Type", contentype);
                //rsp.Headers.Add("ContentType", contentype);
                rsp.Content.Headers.ContentType = new MediaTypeHeaderValue(contentype);
                LogHelper.Error("end:" + contentype);
                return rsp;
            }
            catch (Exception e)
            {
                LogHelper.Error("错误了:" + e.ToString());
                return new HttpResponseMessage(HttpStatusCode.NoContent);
            }
        }
        [Route("uploadfile/{month}/{filename}")]
        [HttpGet]
        public HttpResponseMessage GetImg(string month, string filename)
        {
            try
            {
                string filePath = _shareName + @"\WXFILE\uploadfile\" + month + "\\" + filename;
                var f = new FileInfo(filePath);
                if (!f.Exists)
                {
                    return new HttpResponseMessage(HttpStatusCode.NoContent);
                }
                //var stream = new FileStream(filepath, FileMode.Open);
                //byte[] expectedBytes = new byte[stream.Length];


                //HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.OK);
                //response.Content = new StreamContent(stream);
                string contentype = System.Web.MimeMapping.GetMimeMapping(filePath);
                if (!filename.Contains("."))
                {
                    contentype = "image/jpeg";
                }
                if (contentype.IndexOf("audio") > -1 || contentype.IndexOf("mp4") > -1)
                {
                    //LogHelper.Error("end:" + contentype);
                    //HttpResponseMessage rsp = this.Request.CreateResponse(HttpStatusCode.OK);
                    HttpResponseMessage rsp = this.Request.CreateResponse(HttpStatusCode.PartialContent);
                    using (StreamReader sr = new StreamReader(filePath))
                    {
                        long size = 0, start = 0, end = 0;
                        size = sr.BaseStream.Length;
                        end = size - 1;
                        //rsp.Headers.AcceptRanges.Add("0-" + length.ToString());
                        rsp.Headers.AcceptRanges.Add("bytes");
                        if (this.Request.Headers.Range != null)
                        {
                            RangeItemHeaderValue requestRange = this.Request.Headers.Range.Ranges.First();
                            start = requestRange.From.Value;
                            long count = 1024 * 1024 * 5;
                            long anotherEnd = (start + count) > end ? end : (start + count);
                            end = requestRange.To == null ? anotherEnd : requestRange.To.Value;
                        }
                        sr.BaseStream.Seek(start, SeekOrigin.Begin);
                        byte[] buffer = new byte[end - start + 1];
                        sr.BaseStream.Read(buffer, 0, buffer.Length);
                        MemoryStream ms = new MemoryStream(buffer);
                        rsp.Content = new StreamContent(ms);
                        rsp.Content.Headers.ContentRange = new ContentRangeHeaderValue(start, end, size);
                        rsp.Content.Headers.ContentType = new MediaTypeHeaderValue(contentype);
                        return rsp;
                    }
                }
                else
                {
                    HttpResponseMessage rsp = this.Request.CreateResponse(HttpStatusCode.OK);
                    byte[] buffer = System.IO.File.ReadAllBytes(filePath);
                    rsp.Content = new StreamContent(new MemoryStream(buffer));
                    rsp.Content.Headers.ContentType = new MediaTypeHeaderValue(contentype);
                    //LogHelper.Error("end:" + contentype);
                    return rsp;
                }
            }
            catch (Exception e)
            {
                LogHelper.Error("错误了:" + e.ToString());
                return new HttpResponseMessage(HttpStatusCode.NoContent);
            }
        }


    }
}