using GreenTree.Nachtragsmanagement.Core.Domain.Appendix;
using GreenTree.Nachtragsmanagement.Core.Domain.Deviation;
using GreenTree.Nachtragsmanagement.Services.Appendix;
using GreenTree.Nachtragsmanagement.Services.Deviation;
using GreenTree.Nachtragsmanagement.Web.Framework.Authorization;
using GreenTree.Nachtragsmanagement.Web.Models.Deviation;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace GreenTree.Nachtragsmanagement.Web.Controllers
{
    public class DeviationController : Controller
    {
        private readonly IDeviationService _deviationService;
        private readonly IAppendixService _appendixService;

        public DeviationController(
            IDeviationService deviationService,
            IAppendixService appendixService)
        {
            _deviationService = deviationService;

            ViewData["AllAppendices"] = _appendixService.GetAllAppendices();
            ViewData["AllStatuses"] = _deviationService.GetAllStatuses();
            ViewData["AllDisturbances"] = _deviationService.GetAllDisturbances();
            ViewData["AllKinds"] = _deviationService.GetAllKinds();
        }

        /// <summary>
        /// Basic deviation view function
        /// </summary>
        [FunctionAuthorize(true, "Deviation-Deviations")]
        public ActionResult ViewDeviations()
        {
            var deviations = _deviationService.GetAllDeviations();
            var deviationModels = deviations
                .Select(u => DeviationDataModel.FromDeviation(u, false))
                .ToList();

            return View("~/Views/Admin/Deviations/View.cshtml", deviationModels);
        }

        /// <summary>
        /// Get JSON data of specific deviation
        /// </summary>
        /// <param name="id">Deviation id.</param>
        public ActionResult GetDeviation(int id = -1)
        {
            var deviation = _deviationService.GetDeviationById(id);
            if (deviation == null)
                return new JsonResult
                {
                    Data = "notFound",
                    JsonRequestBehavior = JsonRequestBehavior.AllowGet
                };

            var deviationModel = DeviationDataModel.FromDeviation(deviation, false);

            return new JsonResult
            {
                Data = JsonConvert.SerializeObject(deviationModel),
                JsonRequestBehavior = JsonRequestBehavior.AllowGet
            };
        }

        /// <summary>
        /// Callback result for deviation grid
        /// </summary>
        public ActionResult PartialDeviations()
        {
            var deviations = _deviationService.GetAllDeviations();
            var deviationModels = deviations
                .Select(u => DeviationDataModel.FromDeviation(u, false))
                .ToList();

            return PartialView("~/Views/Admin/Deviations/_DeviationGridPartial.cshtml", deviationModels);
        }

        /// <summary>
        /// Partial edit for editing of existing or for new deviation
        /// </summary>
        /// <param name="id">Id for existing deviation, otherweise -1.</param>
        public ActionResult EditDeviation(int id = -1)
        {
            var deviation = _deviationService.GetDeviationById(id);
            var deviationModel = DeviationDataModel.FromDeviation(deviation, true);

            return PartialView("~/Views/Admin/Deviations/_DeviationEditPartial.cshtml", deviationModel);
        }

        /// <summary>
        /// Partial edit result if ModelState is valid, otherwise simple JSON result for success
        /// </summary>
        /// <param name="deviationModel">Deviation model to be saved.</param>
        [HttpPost, ValidateInput(false)]
        public ActionResult EditDeviation(DeviationDataModel deviationModel)
        {
            if (!ModelState.IsValid)
            {
                //deviationModel.AppendixDescription = ((IList<Appendix>)ViewData["AllAppendices"])
                //    .First(d => d.Id == deviationModel.AppendixId).CustomNumber;
                //deviationModel.StatusDescription = ((IList<Status>)ViewData["AllStatuses"])
                //    .First(d => d.Id == deviationModel.StatusId).Description;
                //deviationModel.DisturbanceDescription = ((IList<Disturbance>)ViewData["AllDisturbances"])
                //    .First(d => d.Id == deviationModel.DisturbanceId).Description;
                //deviationModel.KindDescription = ((IList<Kind>)ViewData["AllKinds"])
                //    .First(d => d.Id == deviationModel.KindId).Description;

                return PartialView("~/Views/Admin/Deviations/_DeviationEditPartial.cshtml", deviationModel);
            }

            if (deviationModel.Id == -1)
            {
                var deviation = deviationModel.ToDeviation();

                _deviationService.InsertDeviation(deviation);
            }
            else
            {
                var deviation = _deviationService.GetDeviationById(deviationModel.Id);

                deviation.CustomNumber = deviationModel.CustomNumber;
                deviation.ReceiptDate = deviationModel.ReceiptDate;
                deviation.Value = deviationModel.Value;
                deviation.AppendixId = deviationModel.AppendixId;
                deviation.StatusId = deviationModel.StatusId;
                deviation.DisturbanceId = deviationModel.DisturbanceId;
                deviation.KindId = deviationModel.KindId;
                deviation.Comment = deviationModel.Comment;

                _deviationService.UpdateDeviation(deviation);
            }

            return new JsonResult
            {
                Data = "success"
            };
        }

        /// <summary>
        /// Simple JSON result for deleting a specific deviation
        /// </summary>
        /// <param name="id">Deviation id.</param>
        [HttpPost]
        public ActionResult DeleteDeviation(int id)
        {
            var deviation = _deviationService.GetDeviationById(id);

            if (deviation != null)
                _deviationService.DeleteDeviation(deviation);

            return new JsonResult
            {
                Data = "success"
            };
        }
    }
}