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Kreta.BusinessLogic/HelperClasses/TanuloOsztalyTantargyiAtlagCo.cs

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+using System;
+using System.Collections.Generic;
+using Kreta.BusinessLogic.Classes;
+
+namespace Kreta.BusinessLogic.HelperClasses
+{
+    public class TanuloOsztalyTantargyiAtlagCoComparer : IEqualityComparer<TanuloOsztalyTantargyiAtlagCo>
+    {
+        public bool Equals(TanuloOsztalyTantargyiAtlagCo lhs, TanuloOsztalyTantargyiAtlagCo rhs) => lhs.TantargyId == rhs.TantargyId;
+
+        public int GetHashCode(TanuloOsztalyTantargyiAtlagCo obj) => obj.TantargyId.GetHashCode();
+    }
+
+    public class TanuloOsztalyTantargyiAtlagCo
+    {
+        public bool HasAtlag { get; set; } = true;
+
+        public int TantargyId { get; set; }
+
+        public string TantargyNev { get; set; }
+
+        public List<(int Osztalyzat, int? Suly)> TanuloErtekelesOsztalyzatList { get; set; }
+
+        public List<(int Osztalyzat, int? Suly)> OsztalyErtekelesOsztalyzatList { get; set; }
+
+        public double? TanuloAtlag => HasAtlag ? TanuloErtekelesOsztalyzatList.Count > 0 ? TanuloErtekelesOsztalyzatList.WeightedAverage(x => x.Osztalyzat, x => x.Suly ?? 100, 2) : 0.00 : default(double?);
+
+        public double? OsztalyAtlag => HasAtlag ? OsztalyErtekelesOsztalyzatList.Count > 0 ? OsztalyErtekelesOsztalyzatList.WeightedAverage(x => x.Osztalyzat, x => x.Suly ?? 100, 2) : 0.00 : default(double?);
+
+        public double? AtlagKulonbseg => HasAtlag ? Math.Round(TanuloAtlag.Value - OsztalyAtlag.Value, 2) : default(double?);
+
+        //NOTE: A tantárgyak sorrendezéséhez kellenek ezek az adatok!
+        public int? FotargyId { get; set; }
+
+        public string FotargyNev { get; set; }
+
+        public int? TantargyKategoriaId { get; set; }
+
+        public string TantargyKategoriaNev { get; set; }
+
+        public string IsMagatartasSzorgalom { get; set; }
+
+        public int? FotargyTantargyKategoriaId { get; set; }
+
+        public string FotargyTantargyKategoriaNev { get; set; }
+    }
+}