using CScommon;
using Microsoft.AspNet.Identity;
using Qcarbon.ViewModels.DTO;
using Resources;
using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Linq;
using System.Threading;
using System.Web;
using System.Web.Mvc;
using Weee.DAL;
using Weee.Models;
using Weee.Models.ExtensionMethods;
using Weee.Service;

namespace Weee.Areas.Lca.Controllers
{
    //[Authorize(Roles = ProgramConstants.normalcompany)]
    public class RiskMaterialTransportController : LCAcontrollerBase
    {
        protected MaterialC3EmissionDataService service;
        public RiskMaterialTransportController(WeeeDataContext db) 
            : base(db)
        {
            service = new MaterialC3EmissionDataService(db);
        }

        // GET: Lca/RiskMaterialTransport
        //[Route("LCA/RiskMaterialTransport/Index/{LCAID?}")]
        //[Route("RiskMaterialTransport/Index/{LCAID?}")]
        //[Route("LCA/RiskMaterialTransport/{LCAID}")]
        public ActionResult Index(int? LCAID)
        {
            ViewBag.activeRisk = "materialTransport";
            //var v = User.Identity.GetUserAccountType(db);
            RiskMaterialListViewModel viewModel = new RiskMaterialListViewModel();
            if (LCAID == null)
                viewModel.errMsg = "LCAID null!";
            if (viewModel.errMsg=="")
            {
                viewModel.LCAID =(int) LCAID;
                ViewBag.LCAID = viewModel.LCAID;
                loadMaterialList(viewModel);
            }
            return View(viewModel);
        }
        private string loadMaterialList(RiskMaterialListViewModel viewModel)
        {
            string ret = "";
            // get view model from LCAID
            var qry = (from a in uow.LCARiskAssmtSurveyFormMaterialC3EmissionRepository.Get()
                       where a.LCAID ==viewModel.LCAID
                       select a).AsQueryable();
            if (qry == null)
                viewModel.errMsg = "No record(s)!";
            else
            {
                if (viewModel.modelList == null)
                    viewModel.modelList = new List<LCARiskAssmtSurveyForm_MaterialC3Emission>();
                foreach (var rec in qry.ToList())
                {
                    //string json = CScommon.JsonUtl.fromT(rec);
                    //LCARiskAssmtSurveyForm_MaterialC3Emission toAdd =
                    //    CScommon.JsonUtl.toT<LCARiskAssmtSurveyForm_MaterialC3Emission>(json);
                    viewModel.modelList.Add(rec);// toAdd);
                }
            }
            return ret;
        }
        private string updateSelectedModel(RiskMaterialListViewModel viewModel)
        {
            string ret = "";
            var qry = (from a in uow.LCARiskAssmtSurveyFormMaterialC3EmissionRepository.Get()
                       where a.LCAID==viewModel.LCAID && a.MaterialNo==viewModel.selectedID
                       select a).FirstOrDefault();
            viewModel.selectedModel = qry;
            return ret;
        }
        [HttpPost]
        public ActionResult Index(RiskMaterialListViewModel viewModel)
        {
            string err = "";
            switch(viewModel.cmd)
            {
                case "選取":
                    err = updateSelectedModel(viewModel);
                    TempData["selectedModel"] = viewModel.selectedModel;
                    break;
                case "btnAdd":
                    return RedirectToAction("AddUpdate", new { LCAID = viewModel.LCAID });
                    break;
                case "btnEdit":
                    RiskMaterialViewModel editModel = new RiskMaterialViewModel();
                    editModel.editing = true;
                    editModel.LCAID = viewModel.LCAID;
                    editModel.singleRec =(LCARiskAssmtSurveyForm_MaterialC3Emission) TempData["selectedModel"];// viewModel.selectedModel;
                    TempData["viewModel"] = editModel;
                    return RedirectToAction("AddUpdate", new { LCAID = viewModel.LCAID });
                    break;
                case "btnDelete":
                    break;
                default:
                    break;
            }
            err = loadMaterialList(viewModel);
            return View(viewModel);
        }
        public ActionResult AddUpdate(int? LCAID)
        {
            RiskMaterialViewModel viewModel;
            if (LCAID == null)
            {
                viewModel = new RiskMaterialViewModel();
                viewModel.errMsg = "LCAID parameter missing!";
                return View(viewModel);
            }
            ViewBag.LCAID = LCAID;
            var qry = TempData["viewModel"] as RiskMaterialViewModel;
            if (qry != null)//editing
                viewModel = qry;
            else//adding
            {
                viewModel = new RiskMaterialViewModel();
                viewModel.LCAID = (int)LCAID;
            }
            return View(viewModel);
        }
        
        [HttpPost]
        //public ActionResult Add(RiskMaterialViewModel viewModel)
        public ActionResult AddUpdate(RiskMaterialViewModel viewModel)
        {
            verifyAdd(viewModel);
            if (!ModelState.IsValid)
                return View(viewModel);
            viewModel.singleRec.ActivityIntensity = viewModel.singleRec.MaterialSpec
                * viewModel.singleRec.AnnualPurchaseAmount;
            viewModel.singleRec.Emission = viewModel.singleRec.ActivityIntensity
                * viewModel.singleRec.KgCO2e;
            switch (viewModel.cmd)
            {
                case "更新":
                    break;
                case "儲存":
                    //service.Save(viewModel.singleRec);
                    LCARiskAssmtSurveyForm_MaterialC3Emission toBeSave = viewModel.singleRec;
                    toBeSave.LCAID = viewModel.LCAID;
                    var entry = db.Entry(toBeSave);
                    if (toBeSave.ID == 0)
                    {
                        var qry = (from a in db.LCARiskAssmtSurveyForm_MaterialC3Emissions
                                   where a.LCAID == toBeSave.LCAID && a.ID > 0 
                                        && a.MaterialNo == toBeSave.MaterialNo
                                   select a);
                        if (qry.Any())
                        {
                            ModelState.AddModelError("", $"料號 {toBeSave.MaterialNo} 已存在！");
                            return View(viewModel);
                        }
                        //toBeSave.ID = Guid.NewGuid();
                        toBeSave.CreatedBy =User.Identity.GetUserId();
                        toBeSave.CreatedDate = DateTime.Now;
                        entry.State = EntityState.Added;
                    }
                    else
                    {
                        toBeSave.ModifiedBy = User.Identity.GetUserId();
                        toBeSave.ModifiedDate = DateTime.Now;
                        entry.State = EntityState.Modified;
                        entry.Property(x => x.LCAID).IsModified = false;
                    }
                    db.SaveChanges();
                    viewModel.successMsg = "新增成功！";
                    break;
                default:
                    break;
            }
            return View(viewModel);
        }
        protected string verifyAdd(RiskMaterialViewModel viewModel)
        {
            string ret = "";
            if (string.IsNullOrWhiteSpace(viewModel.singleRec.MaterialNo))
                ModelState.AddModelError("",$"{Resource.MaterialNo} {Resource.HeaderMessageRequire}" );
            if (string.IsNullOrWhiteSpace(viewModel.singleRec.MaterialName))
                ModelState.AddModelError("", $"{Resource.RAMC3EMaterialName} {Resource.HeaderMessageRequire}");
            if (string.IsNullOrWhiteSpace(viewModel.singleRec.Unit))
                ModelState.AddModelError("", $"{Resource.RAMC3EMaterialActivityUnit} {Resource.HeaderMessageRequire}");
            //!!...檢查料號是否重複
            return ret;
        }
    }
}