using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace Weee.Models.ExtensionMethods
{
    public static class SheetDataExtension
    {
        public static decimal GetTotalKgCO2e<T>(this ICollection<T> sheetDatas) where T : SheetData
        {
            return sheetDatas.Sum(x => x.KgCO2e);
        }

        public static void UpdateKgCO2e(this SheetData self, decimal parametervalue)
        {
                self.KgCO2e = self.Scalar * parametervalue;
        }

        public static decimal GetWeightDistributeKgCO2e<T>(this ICollection<T> sheetDatas, ProductLCA productLca) where T : SheetData
        {
            var weightDistribute = sheetDatas.Sum(x => x.KgCO2e) / productLca.GetDistributeWeight();
            return weightDistribute;
        }

        public static decimal GetAreaDistributeKgCO2e<T>(this ICollection<T> sheetDatas, ProductLCA productLca) where T : SheetData
        {
            var areaDistribute = sheetDatas.Sum(x => x.KgCO2e) / productLca.GetDistributeArea();
            return areaDistribute;
        }

        public static decimal GetHourDistributeKgCO2e<T>(this ICollection<T> sheetDatas, ProductLCA productLca) where T : SheetData
        {
            var hourDistribte = sheetDatas.Sum(x => x.KgCO2e) * productLca.GetDistributeHour();
            return hourDistribte;
        }

        public static decimal GetWeightDistributePercentage<T>(this ICollection<T> sheetDatas, ProductLCA productLca) where T : SheetData
        {
            var kgCO2Proportion = sheetDatas.Sum(x => x.KgCO2e) / productLca.GetTotalFabKgCO2e();
            var weightDistributeProportion = kgCO2Proportion / productLca.GetDistributeWeight();
            return weightDistributeProportion * 100;
        }

        public static decimal GetAreaDistributePercentage<T>(this ICollection<T> sheetDatas, ProductLCA productLca) where T : SheetData
        {
            var kgCO2Proportion = sheetDatas.Sum(x => x.KgCO2e) / productLca.GetTotalFabKgCO2e();
            var areaDistribteProportion = kgCO2Proportion / productLca.GetDistributeArea();
            return areaDistribteProportion * 100;
        }

        public static decimal GetHourDistributePercentage<T>(this ICollection<T> sheetDatas, ProductLCA productLca) where T : SheetData
        {
            var kgCO2Proportion = sheetDatas.Sum(x => x.KgCO2e) / productLca.GetTotalFabKgCO2e();
            var hourDistributeProportion = kgCO2Proportion * productLca.GetDistributeHour();
            return hourDistributeProportion * 100;
        }
    }
}