Add Modifier model

Elwig/Helpers/Utils.cs

@@ -94,5 +94,15 @@ namespace Elwig.Helpers {
         public static double OeToKmw(double oe) {
             return Math.Round((-4.54 + Math.Sqrt(4.54 * 4.54 - 4 * 0.022 * -oe)) / 2 * 0.022, 1);
         }
+
+        public static decimal DecFromDb(long value, byte precision) {
+            bool neg = value < 0;
+            if (neg)  value = -value;
+            return new decimal((int)(value & 0xFFFFFFFF), (int)((value >> 32) & 0x7FFFFFFF), 0, neg, precision);
+        }
+
+        public static long DecToDb(decimal value, byte precision) {
+            return (long)decimal.Round(value * precision, 0);
+        }
     }
 }

Elwig/Models/Currency.cs

@@ -1,4 +1,5 @@
-using Microsoft.EntityFrameworkCore;
+using Elwig.Helpers;
+using Microsoft.EntityFrameworkCore;
 using System.ComponentModel.DataAnnotations.Schema;
 
 namespace Elwig.Models {
@@ -14,9 +15,9 @@ namespace Elwig.Models {
         public string? Symbol { get; private set; }
 
         [Column("one_euro")]
-        public int? OneEuroValue { get; private set; }
+        public long? OneEuroValue { get; private set; }
 
         [NotMapped]
-        public decimal? OneEuro => OneEuroValue / 1_000_000;
+        public decimal? OneEuro => OneEuroValue != null ? Utils.DecFromDb((long)OneEuroValue, 6) : null;
     }
 }

Elwig/Models/Modifier.cs

@@ -0,0 +1,42 @@
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Elwig.Models {
+    [Table("modifier"), PrimaryKey("Year", "ModId")]
+    public class Modifier {
+        [Column("year")]
+        public int Year { get; set; }
+
+        [Column("modid")]
+        public string ModId { get; set; }
+
+        [Column("name")]
+        public string Name { get; set; }
+
+        [Column("abs")]
+        public long? AbsValue { get; set; }
+
+        [NotMapped]
+        public decimal? Abs {
+            get {
+                return AbsValue != null ? Season.DecFromDb((long)AbsValue) : null;
+            }
+            set {
+                AbsValue = value != null ? Season.DecToDb((decimal)value) : null;
+            }
+        }
+
+        [Column("rel")]
+        public double? Rel { get; set; }
+
+        [Column("standard")]
+        public bool IsStandard { get; set; }
+
+        [Column("quick_select")]
+        public bool IsQuickSelect { get; set; }
+
+        [ForeignKey("Year")]
+        public virtual Season Season { get; private set; }
+
+    }
+}

Elwig/Models/Season.cs

@@ -1,5 +1,7 @@
-using Microsoft.EntityFrameworkCore;
+using Elwig.Helpers;
+using Microsoft.EntityFrameworkCore;
 using System;
+using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations.Schema;
 
 namespace Elwig.Models {
@@ -12,7 +14,7 @@ namespace Elwig.Models {
         public string CurrencyCode { get; set; }
 
         [Column("precision")]
-        public int Precision { get; set; }
+        public byte Precision { get; set; }
 
         [Column("start_date")]
         public string? StartDateString { get; set; }
@@ -42,5 +44,16 @@ namespace Elwig.Models {
 
         [ForeignKey("CurrencyCode")]
         public virtual Currency Currency { get; private set; }
+
+        [InverseProperty("Season")]
+        public virtual ISet<Modifier> Modifiers { get; private set; }
+
+        public decimal DecFromDb(long value) {
+            return Utils.DecFromDb(value, Precision);
+        }
+
+        public long DecToDb(decimal value) {
+            return Utils.DecToDb(value, Precision);
+        }
     }
 }