using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Web;
using System.Web.Http;
using Weee.DAL;
using Weee.Filter;
using Weee.Models;
using Weee.Models.ExtensionMethods;
using Weee.Service;

namespace Weee.Controllers
{
    public class WorkHourController : ApiControllerBase
    {
        private readonly WeeeMonthlyDataService service;
        private readonly WeeeDataContext _db;

        public WorkHourController(WeeeMonthlyDataService d, WeeeDataContext db)
            : base(d)
        {
            service = d;
            _db = db;
        }

        [Route("api/WorkHour/GetWorkHours")]
        [HttpPost]
        //[Filter.ApiMultilanguage]disable obsolete warning, not sure OK or not
        public object Get(PeopleTypesParameters parameters)
        {
            if (HttpContext.Current.Session!=null)
                HttpContext.Current.Session["LCAid"] = parameters.LCAID;
            Dictionary<string, decimal> dictFactors = service.getWorkhourFactors();
            List<string> Factors = new List<string>();
            foreach(var rec in dictFactors)
            {
                Factors.Add(rec.Key);
                Factors.Add(rec.Value.ToString("0.0000000000"));
            }
            var GWP_CH4 = (from a in _db.AssessmentReportGWP
                           where a.chemicalFormula == "CH4"
                           select a).FirstOrDefault();
            var arVersion = (from a in _db.LCAs // uow.GetDBcontext().LCAs
                             where a.ID == parameters.LCAID
                             select a.ARversion).FirstOrDefault();
            if (GWP_CH4 != null && arVersion != null)
            {
                Factors.Add("GWP");
                if (arVersion == "AR4")
                    Factors.Add(GWP_CH4.AR4GWP100.ToString("0.0000000000"));
                else if (arVersion == "AR5")
                    Factors.Add(GWP_CH4.AR5GWP100.ToString("0.0000000000"));
                else if (arVersion == "AR6")
                    Factors.Add(GWP_CH4.AR6GWP100.ToString("0.0000000000"));
            }
            if (Factors.Count < 12)
            {
                for (int i = Factors.Count; i < 12; i++)
                    Factors.Add("");
            }
            if(parameters.peopleType == null)
            {
                parameters.peopleType = "直接人員";
            }
            object ret = null;
            if (parameters.peopleType == "直接人員" || parameters.peopleType == "間接人員")
            {
                var WorkHours = service.GetSheet<LCACommonSurveyForm_WorkHours>(parameters.LCAID);
                if (parameters.peopleType == "直接人員")
                {
                    WorkHours = WorkHours.Where(x => x.Type == LCACommonSurveyForm_WorkHours.WorkHourType.Direct);
                    if (!WorkHours.Any())
                    {
                        var workHoursList = new List<LCACommonSurveyForm_WorkHours>();
                        for (int i = 1; i <= 12; i++)
                        {
                            workHoursList.Add(new LCACommonSurveyForm_WorkHours
                            {
                                Type = LCACommonSurveyForm_WorkHours.WorkHourType.Direct,
                                Index = i,
                                LCAID = parameters.LCAID
                            });
                        }
                        WorkHours.Concat(workHoursList);
                        _db.LCACommonSurveyForm_WorkHour.AddRange(workHoursList);
                        _db.SaveChanges();
                    }
                }
                else if (parameters.peopleType == "間接人員")
                {
                    WorkHours = WorkHours.Where(x => x.Type == LCACommonSurveyForm_WorkHours.WorkHourType.Indirect);
                    if (!WorkHours.Any())
                    {
                        var workHoursList = new List<LCACommonSurveyForm_WorkHours>();
                        for (int i = 1; i <= 12; i++)
                        {
                            workHoursList.Add(new LCACommonSurveyForm_WorkHours
                            {
                                Type = LCACommonSurveyForm_WorkHours.WorkHourType.Indirect,
                                Index = i,
                                LCAID = parameters.LCAID
                            });
                        }
                        WorkHours.Concat(workHoursList);
                        _db.LCACommonSurveyForm_WorkHour.AddRange(workHoursList);
                        _db.SaveChanges();
                    }

                }
                ret = new
                {
                    WorkHours,
                    SheetHeader = service.GetSheetHeader(parameters.LCAID, Weee.Models.Paramemter.Categories.Septic),
                    Factors
                };

            }
            else
            {
                ret = new
                {
                    WorkHours = service.GetSheet<LCACommonSurveyForm_WorkHours>(parameters.LCAID).Where(x => x.Type == LCACommonSurveyForm_WorkHours.WorkHourType.WorkHourPeopleType && x.WorkHourPeopleType == parameters.peopleType),
                    SheetHeader = service.GetSheetHeader(parameters.LCAID, Weee.Models.Paramemter.Categories.Septic),
                    Factors
                };

            }
            return ret;
        }

        [Route("api/WorkHour/GetAllWorkHours/{LCAID}")]
        //[Filter.ApiMultilanguage]disable obsolete warning, not sure OK or not
        public object GetAll(int LCAID)
        {
            if (HttpContext.Current.Session != null)
                HttpContext.Current.Session["LCAid"] = LCAID;
            Dictionary<string, decimal> dictFactors = service.getWorkhourFactors();
            List<string> Factors = new List<string>();
            foreach (var rec in dictFactors)
            {
                Factors.Add(rec.Key);
                Factors.Add(rec.Value.ToString("0.0000000000"));
            }
            var GWP_CH4 = (from a in _db.AssessmentReportGWP
                           where a.chemicalFormula == "CH4"
                           select a).FirstOrDefault();
            var arVersion = (from a in _db.LCAs // uow.GetDBcontext().LCAs
                             where a.ID == LCAID
                             select a.ARversion).FirstOrDefault();
            if (GWP_CH4 != null && arVersion != null)
            {
                Factors.Add("GWP");
                if (arVersion == "AR4")
                    Factors.Add(GWP_CH4.AR4GWP100.ToString("0.0000000000"));
                else if (arVersion == "AR5")
                    Factors.Add(GWP_CH4.AR5GWP100.ToString("0.0000000000"));
                else if (arVersion == "AR6")
                    Factors.Add(GWP_CH4.AR6GWP100.ToString("0.0000000000"));
            }
            if (Factors.Count < 12)
            {
                for (int i = Factors.Count; i < 12; i++)
                    Factors.Add("");
            }
            var ret = new
            {
                WorkHours = service.GetSheet<LCACommonSurveyForm_WorkHours>(LCAID).OrderBy(x=>x.Type).ThenBy(x=>x.WorkHourPeopleType).ThenBy(x=>x.Index),
                SheetHeader = service.GetSheetHeader(LCAID, Weee.Models.Paramemter.Categories.Septic),
                Factors
            };
            return ret;
        }

        [Route("api/WorkHour/GetPeopleTypes/{LCAID}")]
        public object GetPeopleTypes(int LCAID)
        {
            if (HttpContext.Current.Session != null)
                HttpContext.Current.Session["LCAid"] = LCAID;

            var PeopleTypes = _db.LCACommonSurveyForm_WorkHour.Where(x => x.LCAID == LCAID && x.WorkHourPeopleType != null).Select(x => x.WorkHourPeopleType).Distinct().ToList();
            if (!PeopleTypes.Contains("間接人員"))
            {
                PeopleTypes.Insert(0, "間接人員");
            }
            if (!PeopleTypes.Contains("直接人員"))
            {
                PeopleTypes.Insert(0, "直接人員");
            }

            object ret = new
            {
                PeopleTypes
            };
            return ret;
        }
        public class PeopleTypesParameters
        {
            public int LCAID { get; set; }
            public String peopleType { get; set; }
        }
        [Route("api/WorkHour/CreatePeopleTypes")]
        [HttpPost]
        public object CreatePeopleTypes(PeopleTypesParameters parameters)
        {
            if (HttpContext.Current.Session != null)
                HttpContext.Current.Session["LCAid"] = parameters.LCAID;

            if(_db.LCACommonSurveyForm_WorkHour.Where(x => x.LCAID == parameters.LCAID && x.WorkHourPeopleType == parameters.peopleType).Count() > 0)
            {
               //return null;
            }
            else
            {
                for (int i = 1; i <= 12; i++)
                {
                    var workHour = new LCACommonSurveyForm_WorkHours();
                    workHour.Index = i;
                    workHour.WorkHourPeopleType = parameters.peopleType;
                    workHour.Type = LCACommonSurveyForm_WorkHours.WorkHourType.WorkHourPeopleType;
                    workHour.LCAID = parameters.LCAID;
                    _db.LCACommonSurveyForm_WorkHour.Add(workHour);
                }
                _db.SaveChanges();
            }
            var PeopleTypes = service.GetSheet<LCACommonSurveyForm_WorkHours>(parameters.LCAID).Where(x => x.WorkHourPeopleType != null).Select(x => x.WorkHourPeopleType).Distinct().ToList();
            if (!PeopleTypes.Contains("間接人員"))
            {
                PeopleTypes.Insert(0, "間接人員");
            }
            if (!PeopleTypes.Contains("直接人員"))
            {
                PeopleTypes.Insert(0, "直接人員");
            }

            object ret = new
            {
                PeopleTypes
            };
            return ret;
        }

        [Route("api/WorkHour/DeletePeopleTypes")]
        [HttpPost]
        public object DeletePeopleTypes(PeopleTypesParameters parameters)
        {
            if (HttpContext.Current.Session != null)
                HttpContext.Current.Session["LCAid"] = parameters.LCAID;
            if (parameters.peopleType != "直接人員" && parameters.peopleType != "間接人員")
            {
                var workHourList = _db.LCACommonSurveyForm_WorkHour.Where(x => x.LCAID == parameters.LCAID && x.WorkHourPeopleType == parameters.peopleType);
                if (workHourList.Count() > 0)
                {
                    _db.LCACommonSurveyForm_WorkHour.RemoveRange(workHourList);
                    _db.SaveChanges();
                }

            }
            var PeopleTypes = service.GetSheet<LCACommonSurveyForm_WorkHours>(parameters.LCAID).Where(x => x.WorkHourPeopleType != null).Select(x => x.WorkHourPeopleType).Distinct().ToList();
            if (!PeopleTypes.Contains("間接人員"))
            {
                PeopleTypes.Insert(0, "間接人員");
            }
            if (!PeopleTypes.Contains("直接人員"))
            {
                PeopleTypes.Insert(0, "直接人員");
            }

            object ret = new
            {
                PeopleTypes
            };
            return ret;
        }
        [Route("api/WorkHour/SaveSheetHeader")]
        [HttpPost]
        public HttpResponseMessage SaveHeader(SheetHeader header)
        {
            return this.SaveSheetHeader(service, Weee.Models.Paramemter.Categories.Septic, header);
        }

        [Route("api/WorkHour/SaveWorkHours")]
        [HttpPost]
        [ApiEditableAttribute("ToBeSave", true)]
        public object SaveAll(IEnumerable<LCACommonSurveyForm_WorkHours> ToBeSave)
        {
            if (!ModelState.IsValid)
            {
                throw new Exception("error");
            }
            if (ToBeSave == null || ToBeSave.Count() == 0) 
                return null;
            int LCAID = ToBeSave.First().LCAID;
            var spvalue = _db.NonYearlyParameters
                   .Where(y => y.Type.Category.Category == Weee.Models.Paramemter.Categories.Septic)
                   .Where(y => !y.IsHistory)
                   .Where(y => y.Type.DisplayNameTW != "GWP")
                   .AsNoTracking()
                   .Select(y => y.Value)
                   .AsEnumerable()
                   .Multiply();
            var GWP_CH4 = (from a in _db.AssessmentReportGWP
                           where a.chemicalFormula == "CH4"
                           select a).FirstOrDefault();
            var arVersion = (from a in _db.LCAs // uow.GetDBcontext().LCAs
                             where a.ID == LCAID
                             select a.ARversion).FirstOrDefault();
            if (GWP_CH4 != null && arVersion != null)
            {
                if (arVersion == "AR4")
                    spvalue *= GWP_CH4.AR4GWP100;
                else if (arVersion == "AR5")
                    spvalue *= GWP_CH4.AR5GWP100;
                else if (arVersion == "AR6")
                    spvalue *= GWP_CH4.AR6GWP100;
            }
            // service.SaveMonthlyData(workhour);
            foreach (var item in ToBeSave)
            {
                var entity = _db.LCACommonSurveyForm_WorkHour.Where(x => x.ID == item.ID).FirstOrDefault();
                if(entity != null)
                {
                    _db.LCACommonSurveyForm_WorkHour.Remove(entity);
                }
                item.ID = 0;
                item.WorkerNumber = Math.Round(item.WorkerNumber, 4);
                item.WorkDay = Math.Round(item.WorkDay, 4);
                item.AverageHourPerDay = Math.Round(item.AverageHourPerDay, 4);
                item.UpdateKgCO2e(spvalue);
                //the kgco2e should devide by 8 , 因為係數中有一個單位為 每人每日(8小時)汙水量 , 而非每人每小時汙水量
                //而工時的Scalar 單位為 "小時"
                item.KgCO2e *= 0.125m;
            }
            _db.SaveChanges();
            //service.DeleteSheet<LCACommonSurveyForm_WorkHours>(LCAID);
            var result = service.SaveSheet(ToBeSave);
            var qry = (from a in _db.LCAs
                       where a.ID == LCAID
                       select a).FirstOrDefault();
            if (qry != null)
            {
                qry.activityDataTypeWorkHour = ActivityDataType.自行推估;
                qry.emitParaTypeWorkHour = EmitParaType.國家排放係數;
                _db.SaveChanges();
            }
            return new { result = result };
        }


        [Route("api/WorkHour/SaveAllTypesWorkHours")]
        [HttpPost]
        [ApiEditableAttribute("ToBeSave", true)]
        public object SaveAllTypes(IEnumerable<LCACommonSurveyForm_WorkHours> ToBeSave)
        {
            if (!ModelState.IsValid)
            {
                throw new Exception("error");
            }
            if (ToBeSave == null || ToBeSave.Count() == 0)
                return null;
            int LCAID = ToBeSave.First().LCAID;
            var spvalue = _db.NonYearlyParameters
                   .Where(y => y.Type.Category.Category == Weee.Models.Paramemter.Categories.Septic)
                   .Where(y => !y.IsHistory)
                   .Where(y => y.Type.DisplayNameTW != "GWP")
                   .AsNoTracking()
                   .Select(y => y.Value)
                   .AsEnumerable()
                   .Multiply();
            var GWP_CH4 = (from a in _db.AssessmentReportGWP
                           where a.chemicalFormula == "CH4"
                           select a).FirstOrDefault();
            var arVersion = (from a in _db.LCAs // uow.GetDBcontext().LCAs
                             where a.ID == LCAID
                             select a.ARversion).FirstOrDefault();
            if (GWP_CH4 != null && arVersion != null)
            {
                if (arVersion == "AR4")
                    spvalue *= GWP_CH4.AR4GWP100;
                else if (arVersion == "AR5")
                    spvalue *= GWP_CH4.AR5GWP100;
                else if (arVersion == "AR6")
                    spvalue *= GWP_CH4.AR6GWP100;
            }
            // 全部清空
            _db.LCACommonSurveyForm_WorkHour.RemoveRange(_db.LCACommonSurveyForm_WorkHour.Where(x => x.LCAID == LCAID).ToList());
            // 再逐個類別匯入
            foreach (var group in ToBeSave.GroupBy(x=>new { x.Type, x.WorkHourPeopleType }).ToList())
            {
                var items = group.ToList();
                var type = group.Key.Type;
                var workHourPeopleType = group.Key.WorkHourPeopleType;
                var cnt = items.Count();
                for (var i = 0; i < items.Count() && i < 12; i++) 
                {
                    items[i].ID = 0;
                    items[i].Index = i + 1;
                    items[i].WorkerNumber = Math.Round(items[i].WorkerNumber, 4);
                    items[i].WorkDay = Math.Round(items[i].WorkDay, 4);
                    items[i].AverageHourPerDay = Math.Round(items[i].AverageHourPerDay, 4);
                    items[i].UpdateKgCO2e(spvalue);
                    //the kgco2e should devide by 8 , 因為係數中有一個單位為 每人每日(8小時)汙水量 , 而非每人每小時汙水量
                    //而工時的Scalar 單位為 "小時"
                    items[i].KgCO2e *= 0.125m;
                }
                for(var i = cnt; i < 12; i++)
                {
                    items.Add(new LCACommonSurveyForm_WorkHours()
                    {
                        ID = 0,
                        LCAID = LCAID,
                        Index = i + 1,
                        Type = type,
                        WorkHourPeopleType = workHourPeopleType,
                    });
                }
                _db.LCACommonSurveyForm_WorkHour.AddRange(items);
            }
            _db.SaveChanges();
            var PeopleTypes = _db.LCACommonSurveyForm_WorkHour.Where(x => x.LCAID == LCAID && x.WorkHourPeopleType != null).Select(x => x.WorkHourPeopleType).Distinct().ToList();
            if (!PeopleTypes.Contains("間接人員"))
            {
                PeopleTypes.Insert(0, "間接人員");
            }
            if (!PeopleTypes.Contains("直接人員"))
            {
                PeopleTypes.Insert(0, "直接人員");
            }

            object ret = new
            {
                PeopleTypes
            };
            return ret;
        }
        //[Route("api/WorkHour/SaveWorkHour/{LCAID}/{id}")]
        //[HttpPost]
        //public int Save(int LCAID, int id, WorkHour workhour)
        //{
        //    if (!ModelState.IsValid) { return -1; }
        //    if (id != workhour.ID || LCAID != workhour.LCAID) { return -1; }

        //    return workhour.ID;
        //}

        //[Route("api/WorkHour/DeleteWorkHours/{LCAID}")]
        //[HttpDelete]
        //public IHttpActionResult DeleteAll(int LCAID)
        //{
        //    service.DeleteSheet<WorkHour>(LCAID);
        //    return Ok();
        //}
    }
}