using Step.Database.Controllers;
using Step.Model.DatabaseModels;
using Step.Model.DTOModels.AlarmModels;
using Step.NC;
using Step.Provider;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Security.Claims;
using System.Threading.Tasks;
using System.Web.Http;
using static Step.Model.Constants;

namespace Step.Controllers.WebApi
{
    [RoutePrefix("api/alarm")]
    public class ApiAlarmController : ApiController
    {
        [Route("paginated"), HttpPost]
        public IHttpActionResult GetDataPaginated([FromBody]DTOAlarmsFilterModel filter)
        {
            if (!ModelState.IsValid)
                return BadRequest(ModelState);

            Dictionary<int, string> plcMessages = new Dictionary<int, string>();
            using (NcHandler ncHandler = new NcHandler())
            {
                // Read data
                ncHandler.numericalControl.NC_GetTranslatedPlcMessages(filter.Language, ref plcMessages);
            }


            using (AlarmsController alarm = new AlarmsController())
            {
                var alarms = alarm.GetPaginatedWithFilter(filter.Title, filter.Type, filter.Page - 1, filter.PageSize, filter.StartDate.Value, filter.EndDate, filter.UserIds, plcMessages);

                return Ok(alarms);
            }
        }

        [Route("data"), HttpPost]
        public IHttpActionResult GetAlarmsData(int pageSize)
        {
            using (AlarmsController alarmController = new AlarmsController())
            {
                var alarms = alarmController.GetAlarmsData(pageSize);

                return Ok(alarms);
            }
        }

        #region Note

        [Route("{alarmDescId:int}/note"), HttpGet]
        [WebApiAuthorize(FunctionAccess = FUNCTIONALITY_NAMES.MAINTENANCE, Action = ACTIONS.READ)]
        public IHttpActionResult GetAlarmNotes(int alarmDescId)
        {
            if (!ModelState.IsValid)
                return BadRequest(ModelState);

            using (AlarmsController alarmsController = new AlarmsController())
            {
                // Check if alarm desc exists
                AlarmDescriptionsModel dbAlarm = alarmsController.FindById(alarmDescId);
                if (dbAlarm == null)
                    return NotFound();

                // Update data
                List<DTOAlarmNoteModel> notes = alarmsController.GetNotesByAlarmDescId(alarmDescId);

                return Ok(notes);
            }
        }

        [Route("{alarmDescId:int}/note"), HttpPost]
        [WebApiAuthorize(FunctionAccess = FUNCTIONALITY_NAMES.USER_FUNCTIONS, Action = ACTIONS.WRITE)]
        public IHttpActionResult AddAlarmNote(int alarmDescId, DTONewAlarmNoteModel note)
        {
            if (!ModelState.IsValid)
                return BadRequest(ModelState);

            var identity = User.Identity as ClaimsIdentity;
            // Find user id from the bearer token
            var userId = identity.Claims.Where(c => c.Type == USER_ID_KEY).FirstOrDefault();

            using (AlarmsController alarmsController = new AlarmsController())
            {
                // Check if alarm desc exists
                AlarmDescriptionsModel dbAlarm = alarmsController.FindById(alarmDescId);
                if (dbAlarm == null)
                    return NotFound();

                // Update data
                DTOAlarmNoteModel notes = alarmsController.CreateNote(Convert.ToInt32(userId.Value), alarmDescId, note);

                return Ok(notes);
            }
        }

        [Route("{alarmDescId:int}/note/{noteId:int}"), HttpPut]
        [WebApiAuthorize(FunctionAccess = FUNCTIONALITY_NAMES.MAINTENANCE, Action = ACTIONS.WRITE)]
        public IHttpActionResult EditAlarmNote(int noteId, DTONewAlarmNoteModel newNote)
        {
            if (!ModelState.IsValid)
                return BadRequest(ModelState);

            var identity = User.Identity as ClaimsIdentity;
            // Find user id from the bearer token
            var userId = identity.Claims.Where(c => c.Type == USER_ID_KEY).FirstOrDefault();

            using (AlarmsController alarmsController = new AlarmsController())
            {
                // Check if alarm desc exists
                AlarmNoteModel dbNote = alarmsController.FindNoteById(noteId);
                if (dbNote == null)
                    return NotFound();

                // Check if user is different
                if (dbNote.UserId != Convert.ToInt32(userId.Value))
                    return Unauthorized();

                // Update data
                DTOAlarmNoteModel notes = alarmsController.UpdateNote(dbNote, newNote);

                return Ok(notes);
            }
        }

        [Route("{alarmDescId:int}/note/{noteId:int}"), HttpDelete]
        [WebApiAuthorize(FunctionAccess = FUNCTIONALITY_NAMES.MAINTENANCE, Action = ACTIONS.WRITE)]
        public IHttpActionResult DeleteAlarmNote(int noteId)
        {
            if (!ModelState.IsValid)
                return BadRequest(ModelState);

            var identity = User.Identity as ClaimsIdentity;
            // Find user id from the bearer token
            var userId = identity.Claims.Where(c => c.Type == USER_ID_KEY).FirstOrDefault();

            using (AlarmsController alarmsController = new AlarmsController())
            {
                // Check if alarm desc exists
                AlarmNoteModel dbNote = alarmsController.FindNoteById(noteId);
                if (dbNote == null)
                    return NotFound();

                // Check if user is different
                if (dbNote.UserId != Convert.ToInt32(userId.Value))
                    return Unauthorized();

                // Update data
                alarmsController.DeleteNote(dbNote.NoteId);

                return Ok();
            }
        }

        #endregion Note

        #region Attachment

        [Route("{alarmDescId:int}/attachments"), HttpGet]
        [WebApiAuthorize(FunctionAccess = FUNCTIONALITY_NAMES.MAINTENANCE, Action = ACTIONS.READ)]
        public IHttpActionResult GetAttachmentsByAlarmId(int alarmDescId)
        {
            using (AlarmsController alarmsController = new AlarmsController())
            {
                // Check if alarm desc exists
                AlarmDescriptionsModel dbAlarm = alarmsController.FindById(alarmDescId);
                if (dbAlarm == null)
                    return NotFound();

                List<AlarmFileModel> attachments = alarmsController.FindAttachmentByAlarmDescId(alarmDescId);

                return Ok(attachments);
            }
        }

        [Route("attachment/{attachmentId:int}"), HttpGet]
        public IHttpActionResult GetAttachment(int attachmentId)
        {
            using (AlarmsController alarmsController = new AlarmsController())
            {
                // Check if attachment exist in db or physically
                AlarmFileModel attachment = alarmsController.FindAttachmentById(attachmentId);
                if (attachment == null)
                    return NotFound();
                if (!File.Exists(ALARM_ATTACHMENT_PATH + attachment.LocalFileName))
                    return NotFound();

                return new FileResult(ALARM_ATTACHMENT_PATH + attachment.LocalFileName);
            }
        }

        [Route("{alarmDescId:int}/attachment"), HttpPost]
        [WebApiAuthorize(FunctionAccess = FUNCTIONALITY_NAMES.MAINTENANCE, Action = ACTIONS.WRITE)]
        public async Task<IHttpActionResult> AddAttachment(int alarmDescId)
        {
            var identity = User.Identity as ClaimsIdentity;
            // Find user id from the bearer token
            var userId = identity.Claims.Where(c => c.Type == USER_ID_KEY).FirstOrDefault();

            // Check whether the POST operation is MultiPart?
            if (!Request.Content.IsMimeMultipartContent())
                throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType);

            // Create CustomMultipartFormDataStreamProvider
            CustomMultipartFormDataStreamProvider provider = new CustomMultipartFormDataStreamProvider(ALARM_ATTACHMENT_PATH);
            List<string> files = new List<string>();

            // Read all contents of multipart message into CustomMultipartFormDataStreamProvider.
            var result = await Request.Content.ReadAsMultipartAsync(provider);

            AlarmFileModel attachment = null;
            using (AlarmsController alarmsController = new AlarmsController())
            {
                // Check if alarm desc exists
                AlarmDescriptionsModel dbAlarm = alarmsController.FindById(alarmDescId);
                if (dbAlarm == null)
                    return NotFound();

                // TODO: Remove foreach
                foreach (MultipartFileData file in provider.FileData)
                {
                    var fileName = Path.GetFileName(file.LocalFileName);

                    files.Add(fileName);
                    attachment = alarmsController.AddAttachment(file.Headers.ContentDisposition.FileName.Replace("\"", string.Empty), fileName, alarmDescId, Convert.ToInt32(userId.Value));
                }
            }

            // Send OK Response along with saved file names to the client.
            return Ok(attachment);
        }

        [Route("attachment/{attachmentId:int}"), HttpDelete]
        [WebApiAuthorize(FunctionAccess = FUNCTIONALITY_NAMES.MAINTENANCE, Action = ACTIONS.WRITE)]
        public IHttpActionResult DeleteAttachment(int attachmentId)
        {
            var identity = User.Identity as ClaimsIdentity;
            // Find user id from the bearer token
            var userId = identity.Claims.Where(c => c.Type == USER_ID_KEY).FirstOrDefault();

            using (AlarmsController alarmsController = new AlarmsController())
            {
                // Get single file
                AlarmFileModel attachment = alarmsController.FindAttachmentById(attachmentId);
                // Check if exist in db or physically
                if (attachment == null)
                    return NotFound();
                // Check user
                if (attachment.UserId != Convert.ToInt32(userId.Value))
                    return Unauthorized();

                alarmsController.DeleteAttachment(attachment);

                return Ok();
            }
        }

        #endregion Attachment
    }
}