using AwInitilizer.Assist;
using AwInitilizer.Model;
using InitializerModel;
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;
using System.Web;

namespace AwInitilizer.Procedure
{
    public class FirmwareUploadProcedure : ProcedureBase
    {
        internal string Version;
        internal string fileName;
        internal string module;

        private FirmwareUpdateModel _model;

        public FirmwareUploadProcedure(FirmwareUpdateModel model) : base()
        {
            _model = model;

            Name = string.Format("Firmware {0} upload", model.Module);
            Content = string.Format("Update {0} Firemware", model.Module);

            Version = model.Version;
            fileName = model.FirmwareFileName;
            module = model.Module;
        }

        internal override async Task<bool> Run()
        {
            Logger.Print("Firmware Uploading...");
            var uploadResult = await Uploadfirmware(fileName);
            MesLogData.Add($"{module}Upload", uploadResult?"1":"0", uploadResult);
            return uploadResult;
        }

        internal async Task<bool> Uploadfirmware(string fileName)
        {
            try
            {
                var result = await EvApi.Uploadfirmware(fileName);
                InfoLog += $"get firmware update response {result.Response}\n";
                return result.Result;
                //using (var stream = File.Open(fileName, FileMode.Open))
                //{
                //    UploadFileAsync(
                //    new NameValueCollection()
                //    {
                //        {"fw_tag","iso" }
                //    },
                //    new UploadFile()
                //    {
                //        Name = "file",
                //        Filename = Path.GetFileName(fileName),
                //        Stream = stream
                //    }
                //    );
                //}

                //return true;
                //using (var stream = File.Open(fileName, FileMode.Open))
                //{
                //    var response = await UploadFiles(
                //    $"https://{ServerIpAddress}/upgrade_iso_action.php",
                //    new List<UploadFile>() {
                //        new UploadFile()
                //        {
                //            Name="file",
                //            Filename= Path.GetFileName(fileName),
                //            Stream = stream
                //        }
                //    },
                //    new NameValueCollection() {
                //        {"fw_tag","iso" }
                //    }
                //    );

                //    var responseStr = Encoding.ASCII.GetString(response).ToLower();
                //    InfoLog += $"get firmware update response {responseStr}\n";
                //    if (responseStr.Contains("file is uploaded"))
                //        return true;
                //    return false;
                //}
                //return true;
                //using (WebClient webClient = new WebClient())
                //{
                //    NameValueCollection parameters = new NameValueCollection();
                //    parameters.Add("fw_tag", "iso");
                //    webClient.QueryString = parameters;

                //    var responseBytes = await webClient.UploadFileTaskAsync($"https://{ServerIpAddress}/upgrade_iso_action.php", fileName);
                //    string responseString = Encoding.ASCII.GetString(responseBytes);
                //    return true;
                //}
            }
            catch (Exception e)
            {
                Logger.Print("Upload Firmware Failed", isError: true);
                Logger.Print(e.Message + "", isError: true);

                InfoLog += "Upload Firmware Failed\n";
                InfoLog += e.Message;
                InfoLog += "\n";

                return false;
            }
        }

        public async Task<byte[]> UploadFiles(string address, IEnumerable<UploadFile> files, NameValueCollection values)
        {
            var request = (HttpWebRequest)HttpWebRequest.Create(address);
            request.Timeout = 60 * 1000;
            request.KeepAlive = true;
            request.Accept = "*/*";
            request.Method = "POST";
            request.Referer = address;
            request.Expect = "";
            var boundary = "---------------------------" + DateTime.Now.Ticks.ToString("x", NumberFormatInfo.InvariantInfo);
            request.ContentType = "multipart/form-data; boundary=" + boundary;
            boundary = "--" + boundary;

            using (var requestStream = request.GetRequestStream())
            {
                // Write the values
                foreach (string name in values.Keys)
                {
                    var buffer = Encoding.ASCII.GetBytes(boundary + Environment.NewLine);
                    requestStream.Write(buffer, 0, buffer.Length);
                    buffer = Encoding.ASCII.GetBytes(string.Format("Content-Disposition: form-data; name=\"{0}\"{1}{1}", name, Environment.NewLine));
                    requestStream.Write(buffer, 0, buffer.Length);
                    buffer = Encoding.UTF8.GetBytes(values[name] + Environment.NewLine);
                    requestStream.Write(buffer, 0, buffer.Length);
                }

                // Write the files
                foreach (var file in files)
                {
                    var buffer = Encoding.ASCII.GetBytes(boundary + Environment.NewLine);
                    requestStream.Write(buffer, 0, buffer.Length);
                    buffer = Encoding.UTF8.GetBytes(string.Format("Content-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"{2}", file.Name, file.Filename, Environment.NewLine));
                    requestStream.Write(buffer, 0, buffer.Length);
                    var ctype = MimeMapping.GetMimeMapping(file.Filename);
                    buffer = Encoding.ASCII.GetBytes(string.Format("Content-Type: {0}{1}{1}", MimeMapping.GetMimeMapping(file.Filename), Environment.NewLine));
                    requestStream.Write(buffer, 0, buffer.Length);
                    file.Stream.CopyTo(requestStream);
                    buffer = Encoding.ASCII.GetBytes(Environment.NewLine);
                    requestStream.Write(buffer, 0, buffer.Length);
                }

                var boundaryBuffer = Encoding.ASCII.GetBytes(boundary + "--");
                requestStream.Write(boundaryBuffer, 0, boundaryBuffer.Length);
            }

            using (var response = await request.GetResponseAsync())
            using (var responseStream = response.GetResponseStream())
            using (var stream = new MemoryStream())
            {
                responseStream.CopyTo(stream);
                return stream.ToArray();
            }
        }
    }
}