using CMS_CORE_Library.Models;
using Step.Model.DTOModels;
using Step.NC;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;
using System.Web.Http;
using static CMS_CORE_Library.Models.DataStructures;
using static Step.Config.ServerConfig;
using static Step.Model.Constants; 

namespace Step.Controllers.WebApi
{
    [RoutePrefix("api/file_manager")]
    public class NcFileController : ApiController
    {
        [Route("files"), HttpGet]
        public IHttpActionResult GetFileList(string filePath = "")
        {
            using (NcFileAdapter ncAdapter = new NcFileAdapter())
            {
                ncAdapter.Connect();

                CmsError cmsError = ncAdapter.GetFileList(filePath, out List<PreviewFileModel> fileList);
                if (cmsError.IsError())
                    return BadRequest(cmsError.localizationKey);

                return Ok(fileList);
            }
        }

        [Route("file/info"), HttpGet]
        public IHttpActionResult GetFileInfo([FromUri]string filePath)
        {
            using (NcFileAdapter ncAdapter = new NcFileAdapter())
            {
                ncAdapter.Connect();

                CmsError cmsError = ncAdapter.GetFileInfo(filePath, out InfoFile fileInfo);
                if (cmsError.IsError())
                    return BadRequest(cmsError.localizationKey);

                return Ok(fileInfo);
            }
        }

        [Route("file/active/info"), HttpGet]
        public IHttpActionResult GetActiveFileInfo([FromUri]string filePath)
        {
            using (NcFileAdapter ncAdapter = new NcFileAdapter())
            {
                ncAdapter.Connect();

                CmsError cmsError = ncAdapter.GetActiveFileInfo(filePath, out DTOActiveImageAndNameDataModel fileInfo);
                if (cmsError.IsError())
                    return BadRequest(cmsError.localizationKey);

                return Ok(fileInfo);
            }
        }

        [Route("file/active"), HttpPut]
        public IHttpActionResult SetActiveProgram([FromUri]string filePath)
        {
            using (NcFileAdapter ncAdapter = new NcFileAdapter())
            {
                ncAdapter.Connect();

                CmsError cmsError = ncAdapter.SetActiveProgramInfo(filePath, out DTOActiveProgramDataModel fileInfo);
                if (cmsError.IsError())
                    return BadRequest(cmsError.localizationKey);

                return Ok(fileInfo);
            }
        }

        [Route("file/deactivate"), HttpPut]
        public IHttpActionResult DeactivateProgram()
        {
            using (NcFileAdapter ncAdapter = new NcFileAdapter())
            {
                ncAdapter.Connect();

                CmsError cmsError = ncAdapter.DeactivateProgram(out DTOActiveProgramDataModel fileInfo);
                if (cmsError.IsError())
                    return BadRequest(cmsError.localizationKey);

                return Ok(fileInfo);
            }
        }

        [Route("upload"), HttpPost]
        public async Task<IHttpActionResult> UpdloadProgramWithImage()
        {

            bool imageUploaded = false;
            string mainPPName = "";
            List<string> programs = new List<string>();

            if (!Request.Content.IsMimeMultipartContent())
            {
                throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType);
            }

            List<FormItem> formItems = await MultipartHandler.ManageMultiPartFileAsync(Request);
            using (NcFileAdapter ncFileHandler = new NcFileAdapter())
            {
                ncFileHandler.Connect();

                if (NcConfig.NcVendor == NC_VENDOR.OSAI)
                {
                    // Clean upload folder only OSAI
                    CmsError cmsError = ncFileHandler.CleanUploadFolder();
                    if (cmsError.IsError() && cmsError.errorCode != CMS_ERROR_CODES.FILE_NOT_FOUND)
                        return BadRequest(cmsError.localizationKey);
                }

                ActiveProgramDataModel programData = new ActiveProgramDataModel();
                foreach (FormItem item in formItems) 
                {
                    if (item.IsAFile)
                    {
                        if (item.ParameterName == "main") 
                        {
                            File.WriteAllBytes(TEMP_PP_FOLDER + item.FileName, item.Data);
                            programs.Add(item.FileName);

                            // Upload main program
                            CmsError cmsError = ncFileHandler.UploadPartProgramAndActivate(TEMP_PP_FOLDER, item.FileName, out programData);
                            if (cmsError.IsError())
                                return BadRequest(cmsError.localizationKey);

                            mainPPName = Path.GetFileNameWithoutExtension(programData.Path);
                        }
                        else if (item.ParameterName == "file")
                        {
                            File.WriteAllBytes(TEMP_PP_FOLDER + item.FileName, item.Data);
                            programs.Add(item.FileName);

                            // Upload files
                            CmsError cmsError = ncFileHandler.UploadPartProgram(TEMP_PP_FOLDER, item.FileName, out string programPath);
                            if (cmsError.IsError())
                                return BadRequest(cmsError.localizationKey);
                        }
                        else if (item.ParameterName == "image")
                        {
                            // Delete duplicated images
                            string[] imgFiles = Directory.GetFiles(PART_PRG_IMAGES);
                            foreach (string f in imgFiles)
                            {
                                if (Path.GetFileNameWithoutExtension(f) == mainPPName)
                                    File.Delete(f);
                            }

                            // Upload image
                            File.WriteAllBytes(
                                PART_PRG_IMAGES + // Path
                                mainPPName + // Part program name
                                Path.GetExtension(item.FileName), // Extension of the image
                                item.Data);

                            imageUploaded = true;
                        }
                    }
                }

                if (!imageUploaded)
                {
                    // Delete old images with the same name of the main program
                    string[] imgFiles = Directory.GetFiles(PART_PRG_IMAGES);
                    foreach (string f in imgFiles)
                    {
                        if (Path.GetFileNameWithoutExtension(f) == mainPPName)
                            File.Delete(f);
                    }
                }


                if (NcConfig.NcVendor != NC_VENDOR.OSAI) {

                    List<string> lines = new List<string>();
                    string outputFileName = NcConfig.SharedPath + PARTPRG_LIST_FILE;

                    foreach (string prog in programs)
                    {
                        FileInfo fi = new FileInfo(NcConfig.SharedPath + prog);
                        if (fi.Exists)
                        {
                            lines.Add(prog + "|" + fi.CreationTime + "|" + fi.LastWriteTime);
                        }
                    }
                    // Write file
                    File.WriteAllLines(outputFileName, lines.ToArray());
                }


            }

            return Ok();
        }

        [Route("shared_folder_ok"), HttpGet]
        public IHttpActionResult IsSharedFolderOK()
        {
            if (NcConfig.NcVendor == NC_VENDOR.OSAI)
                return Ok(true);
            else
            {
                if (!File.Exists(NcConfig.SharedPath))
                    return Ok(true);

                string fileName = NcConfig.SharedPath + PARTPRG_LIST_FILE;
                int count = Directory.GetFiles(NcConfig.SharedPath) != null ? Directory.GetFiles(NcConfig.SharedPath).Length : 0;

                if (!File.Exists(fileName) && count == 0)
                    return Ok(true);

                if (File.Exists(fileName) && count == 1)
                    return Ok(false);

                if (File.Exists(fileName) && count > 1)
                {
                    // Write file
                    string[] lines = File.ReadAllLines(fileName);
                    foreach (string line in lines)
                    {
                        if (!string.IsNullOrWhiteSpace(line))
                        {
                            string[] linesplitted = line.Split('|');
                            if (linesplitted.Length != 3)
                                return Ok(false);
                            FileInfo fi = new FileInfo(NcConfig.SharedPath + linesplitted[0]);
                            if (!fi.Exists)
                                return Ok(false);
                            if (fi.CreationTime.ToString() != linesplitted[1])
                                return Ok(false);
                            if (fi.LastWriteTime.ToString() != linesplitted[2])
                                return Ok(false);
                        }
                    }
                    return Ok(true);
                }
                return Ok(false);
            }
        }

        [Route("clean_shared_folder"), HttpPut]
        public IHttpActionResult cleanSharedFolder()
        {
            if (NcConfig.NcVendor == NC_VENDOR.OSAI)
                return Ok(true);
            else
            {
                foreach(string filename in Directory.GetFiles(NcConfig.SharedPath))
                {
                    File.Delete(filename);
                }
            }
            return Ok(false);
        }

        [Route("backup_shared_folder"), HttpPut]
        public IHttpActionResult BackupSharedFolder()
        {
            if (NcConfig.NcVendor == NC_VENDOR.OSAI)
                return Ok(true); 
            else
            {
                string newFolder = "C:\\Backup_" + new DirectoryInfo(NcConfig.SharedPath).Name + "\\" + DateTime.Now.ToString("dd-MM-yyyy_HH-mm-ss")  + "\\";

                File.Delete(NcConfig.SharedPath + PARTPRG_LIST_FILE);
                Directory.CreateDirectory(newFolder);
                foreach (string filename in Directory.GetFiles(NcConfig.SharedPath))
                {
                    File.Move(filename, newFolder + Path.GetFileName(filename));
                }
                return Ok(true);
            }
        }

        [Route("shared_files"), HttpGet]
        public IHttpActionResult GetSharedFolderFileList(string sharedPath)
        {          
            List<object> filelist = new List<object>();
            // NC - PC shared folder path
            string sharedFullPath = NcConfig.SharedPath + sharedPath;

            if (!Directory.Exists(sharedFullPath))
                return NotFound();
            // Create list of directories
            foreach (string item in Directory.GetDirectories(sharedFullPath))
            {
                filelist.Add(new
                {
                    Name = Path.GetFileName(item),
                    AbsolutePath = NcConfig.SharedPath + sharedPath,
                    Path = sharedPath,
                    IsDirectory = true
                });
            }

            string sharedNcPath = NcConfig.SharedName + sharedPath.Replace('\\', '/');
            // Add files to list
            foreach (string item in Directory.GetFiles(sharedFullPath))
            {
                if (VALID_FILE_EXTENSIONS.Contains(Path.GetExtension(item).ToLower()))
                    filelist.Add(new
                    {
                        Name = Path.GetFileName(item),
                        AbsolutePath = sharedNcPath + "/" + Path.GetFileName(item),
                        Path = sharedPath + "\\" + Path.GetFileName(item),
                        IsDirectory = false
                    });
            }

            return Ok(filelist);
        }

        #region Queue Manager

        [Route("queue/add"), HttpPost]
        public async Task<IHttpActionResult> UploadToQueue()
        {
            if (!Request.Content.IsMimeMultipartContent())
            {
                throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType);
            }

            List<FormItem> formItems = await MultipartHandler.ManageMultiPartFileAsync(Request);
            DTOQueueModel queueItem = new DTOQueueModel();
            foreach (FormItem item in formItems)
            {
                if (item.IsAFile)
                {
                    // Get part program under "file" key
                    if (item.ParameterName == "file")
                    {
                        using (NcFileAdapter ncAdapter = new NcFileAdapter())
                        {
                            ncAdapter.Connect();

                            File.WriteAllBytes(QUEUE_TMP_FOLDER + item.FileName, item.Data);

                            // Get reps
                            var repsParam = formItems.Where(x => x.ParameterName == "reps").FirstOrDefault();
                            // Check if reps parameter is null or isn't a valid int
                            if (repsParam == null || !int.TryParse(repsParam.Value, out int reps))
                                return BadRequest();
                            // Upload
                            CmsError cmsError = ncAdapter.UploadPartProgramAndAddToQueue(QUEUE_TMP_FOLDER, item.FileName, reps, out queueItem);
                            if (cmsError.IsError())
                                return BadRequest(cmsError.localizationKey);
                        }
                    }
                    else if (item.ParameterName == "image")
                    {
                        File.WriteAllBytes(PART_PRG_IMAGES + item.FileName, item.Data);
                    }
                }
            }

            return Ok(queueItem);
        }

        [Route("queue/{processId:int}/remove/{itemId:int}"), HttpDelete]
        public IHttpActionResult RemoveFromQueue(int processId, int itemId)
        {
            using (NcFileAdapter ncAdapter = new NcFileAdapter())
            {
                ncAdapter.Connect();

                CmsError cmsError = ncAdapter.RemoveFromQueue(processId, itemId);
                if (cmsError.IsError())
                    return BadRequest(cmsError.localizationKey);
            }

            return Ok();
        }

        [Route("queue/{processId:int}/move"), HttpPut]
        public IHttpActionResult MoveQueueItems(int processId, MoveItems itemsPositions)
        {
            using (NcFileAdapter ncAdapter = new NcFileAdapter())
            {
                CmsError cmsError = ncAdapter.MoveQueueItems(processId, itemsPositions.ObjectId, itemsPositions.NewPosition, out List<DTOQueueModel> queue);
                if (cmsError.IsError())
                    return BadRequest(cmsError.localizationKey);

                return Ok(queue);
            }
        }

        [Route("queue/{processId:int}/edit/{itemId:int}"), HttpPut] 
        public IHttpActionResult EditQueueItem(int processId, int itemId, RepsModel reps)
        {
            using (NcFileAdapter ncAdapter = new NcFileAdapter())
            {
                if (reps.Reps < 1)
                    return BadRequest(INCORRECT_PARAMETERS_ERROR.localizationKey);

                CmsError cmsError = ncAdapter.EditQueueItemReps(processId, itemId, reps.Reps, out DTOQueueModel queueItem);
                if (cmsError.IsError())
                    return BadRequest(cmsError.localizationKey);

                return Ok(queueItem);
            }
        }

        [Route("queue/{processId:int}/empty"), HttpDelete]
        public IHttpActionResult EmptyQueue(int processId)
        {
            using (NcFileAdapter ncAdapter = new NcFileAdapter())
            {
                CmsError cmsError = ncAdapter.EmptyQueue(processId);
                if (cmsError.IsError())
                    return BadRequest(cmsError.localizationKey);

                return Ok();
            }
        }

        [Route("queue/start")]
        public IHttpActionResult StartWorkingQueue(int processId)
        {
            using (NcFileAdapter ncAdapter = new NcFileAdapter())
            {
                ncAdapter.Connect();

                CmsError cmsError = ncAdapter.StartWorkingQueue(processId);
                if (cmsError.IsError())
                    return BadRequest(cmsError.localizationKey);

                return Ok();
            }
        }

        [Route("queue/stop")]
        public IHttpActionResult StopWorkingQueue(int processId)
        {
            using (NcFileAdapter ncAdapter = new NcFileAdapter())
            {
                ncAdapter.Connect();

                CmsError cmsError = ncAdapter.StopWorkingQueue(processId);
                if (cmsError.IsError())
                    return BadRequest(cmsError.localizationKey);

                return Ok();
            }
        }

        [Route("macros")]
        public IHttpActionResult GetMacros()
        {
            return Ok(MacrosConfig);
        }

        public class MoveItems
        {
            public int ObjectId;

            public int NewPosition;
        }

        public class RepsModel
        {
            public int Reps;
        }

        #endregion Queue Manager
    }
}