using System;
using System.Collections.Generic;
using System.Data;
using System.Data.Entity;
using System.Data.Entity.Infrastructure;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Web.Http;
using System.Web.Http.Description;
using Weee.DAL;
using Weee.Models;
using Weee.Service;
using Weee.Models.ExtensionMethods;
using Weee.Filter;
using Microsoft.AspNet.Identity;
using System.Web.UI.WebControls;
using NLog;
using static Weee.Models.LCACommonSurveyForm_PowerUsages;

namespace Weee.Controllers
{
    public class PowerUsageController : ApiControllerBase
    {
        private readonly WeeeMonthlyDataService service;
        private readonly WeeeParameterDataService parameterservice;
        private readonly WeeeDataContext _db;
        private WeeeLCADataService serviceLCA;

        public PowerUsageController(WeeeMonthlyDataService d, WeeeParameterDataService s
            , WeeeDataContext db, WeeeLCADataService serviceLCA)
            : base(d)
        {
            service = d;
            parameterservice = s;
            _db = db;
            this.serviceLCA = serviceLCA;
        }

        [Route("api/PowerUsage/GetPowerUsages/{LCAID}")]
        //[Filter.ApiMultilanguage]disable obsolete warning, not sure OK or not
        public object Get(int LCAID)
        {
            LCA lca = service.GetLCA(LCAID);
            object ret =
            new
            {
                PowerUsages = service.GetSheet<LCACommonSurveyForm_PowerUsages>(LCAID),
                // 檢查目前的盤查是否為產品型，用於讀取不同的係數
                options = parameterservice.GetYearlyParameterOptions((lca.LCAType.Name == "ProductLCA") ? Models.Paramemter.Categories.ElectricProduct : Models.Paramemter.Categories.Electric),
                SheetHeader = service.GetSheetHeader(LCAID, (lca.LCAType.Name == "ProductLCA") ? Models.Paramemter.Categories.ElectricProduct : Models.Paramemter.Categories.Electric),
                ActivityOptions = activityItems,
                EmitParaOptions = emitParaItems,
                factor = parameterservice.LCAID2powerPara(LCAID)
            };
            return ret;
        }

        [Route("api/PowerUsage/SaveSheetHeader")]
        [HttpPost]
        public HttpResponseMessage SaveHeader(SheetHeader header)
        {
            return this.SaveSheetHeader(service, Weee.Models.Paramemter.Categories.Electric, header);
        }

        [Route("api/PowerUsage/SavePowerUsages/{LCAID}/{activity}/{emitPara}")]
        [HttpPost]
        [ApiEditableAttribute("ToBeSave", true)]
        public object SaveAll(int LCAID, int activity, int emitPara,
            IEnumerable<LCACommonSurveyForm_PowerUsages> ToBeSave)
        {
            if (!ModelState.IsValid)
            {
                throw new Exception("error");
            }
            if (ToBeSave == null || ToBeSave.Count() == 0) 
                return null;
            serviceLCA.Initialize(User.Identity.GetUserId());
            LCA lca = serviceLCA.GetLCA(LCAID);
            lca.activityDataTypePowerUsage = (ActivityDataType)activity;
            lca.emitParaTypePowerUsage = (EmitParaType)emitPara;
            _db.SaveChanges();
            //OrganizationLCA orgLCA = serviceLCA.GetOrganizationLCA(LCAID);
            //orgLCA.activityDataTypePowerUsage =(ActivityDataType) activity;
            //orgLCA.emitParaTypePowerUsage =(EmitParaType) emitPara;
            //serviceLCA.SaveOrganizationLCA(orgLCA);
            var parameterIDs = ToBeSave
                               .Select(x => x.ParameterID)
                               .Where(x => x != null)
                               .Distinct()
                               .Cast<int>();
            var parameters = _db.Parameters
                                .Where(x => parameterIDs.Contains(x.ID));
            //.Select(x => new { x.ID, x.Value });
            Weee.Models.Paramemter.Parameter curPara = new Weee.Models.Paramemter.SimaproParameter();
            curPara.CO2Value = 0;
            string curArea = "";
            string curYear="";
            decimal scalarTotal = 0;
            foreach (var item in ToBeSave)
            {
                curArea= item.Area;
                curYear = item.Year;//.Parameter.Year;
                item.ID = 0;
                item.Peak =(decimal) Math.Round(item.Peak==null?0:(double)item.Peak, 4);
                item.HalfPeak = (decimal)Math.Round(item.HalfPeak == null ? 0 : (double)item.HalfPeak, 4);
                item.SaturdayHalfPeak = (decimal)Math.Round(item.SaturdayHalfPeak == null ? 0 : (double)item.SaturdayHalfPeak, 4);
                item.OffPeak = (decimal)Math.Round(item.OffPeak == null ? 0 : (double)item.OffPeak, 4);
                if (item.ParameterID != null)
                {
                    Weee.Models.Paramemter.Parameter para = parameters.First(x => x.ID == item.ParameterID);
                    curPara = para;
                    if (item.Type == PowerType.GreenNoCarbon)
                        item.KgCO2e = 0;
                    else
                        item.UpdateKgCO2e(para.Value);
                    scalarTotal += item.Scalar;
                }
                else
                    item.KgCO2e = 0;
            }
            service.DeleteSheet<LCACommonSurveyForm_PowerUsages>(ToBeSave.First().LCAID);
            var result = service.SaveSheet(ToBeSave);
            LifecycleAssmtDataService sds =new LifecycleAssmtDataService(_db);
            string userID = User.Identity.GetUserId();
            int yearI = 0;
            if (curYear != null)
            {
                int.TryParse(curYear, out yearI);
            }
            string err=sds.power2lifeCycle(userID, LCAID, scalarTotal, curArea, yearI, curPara);
            if (!string.IsNullOrWhiteSpace(err))
            {
                Logger log = NLog.LogManager.GetCurrentClassLogger();
                log.Error($"error in api api/PowerUsage/SavePowerUsages sync to life cycle item: {err}");
            }
            return new { result = result };
        }

        //[Route("api/PowerUsage/SavePowerUsage/{LCAID}/{id}")]
        //[HttpPost]
        //public int Save(int LCAID, int id, PowerUsage powerusage)
        //{
        //    if (!ModelState.IsValid) { return -1; }
        //    if (id != powerusage.ID || LCAID != powerusage.LCAID) { return -1; }
        //    service.SaveMonthlyData(powerusage);

        //    return powerusage.ID;
        //}

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