Migrated projects to dotnet8

migrated all projects over to .net8
incomplete feature for gui shipments

src/bnhtrade.Core/Model/Account/PurchaseInvoice.cs

@@ -0,0 +1,172 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace bnhtrade.Core.Model.Account
+{
+    public class PurchaseInvoice
+    {
+        public int PurchaseID { get; set; }
+
+        public int PurchaseNumber { get; set; }
+
+        public int? RecordID { get; set; }
+
+        public DateTime PurchaseDate { get; set; }
+
+        public Model.Account.Contact Contact { get; set; }
+
+        public string SupplierRef { get; set; }
+
+        public string AccountCurrency { get; set; }
+
+        public string PurchaseChannel { get; set; }
+
+        public string CurrencyCode { get; set; }
+
+        public decimal InvoiceNetAmount
+        {
+            get
+            {
+                return InvoiceGrossAmount - InvoiceTaxAmount;
+            }
+        }
+
+        public decimal InvoiceTaxAmount
+        {
+            get
+            {
+                decimal amount = 0;
+                foreach (var item in InvoiceLines)
+                {
+                    amount = amount + item.LineTotalTax;
+                }
+                return amount;
+            }
+        }
+
+        public decimal InvoiceGrossAmount 
+        {
+            get
+            {
+                decimal amount = 0;
+                foreach (var item in InvoiceLines)
+                {
+                    amount = amount + item.LineTotalGross;
+                }
+                return amount;
+            }
+        }
+
+        /// <summary>
+        /// Value stored in database to check invoice lines against
+        /// </summary>
+        public decimal InvoiceGrossAmountCheck { get; set; }
+
+        /// <summary>
+        /// Don't know what this is for, all the amounts in the db are gross, so this is always true 
+        /// </summary>
+        public bool VatInclusiveAmounts { get; set; }
+
+        public DateTime RecordCreated { get; set; }
+
+        public DateTime RecordModified { get; set; }
+
+        public bool IsActive { get; set; }
+
+        public List<Model.Account.PurchaseInvoice.Line> InvoiceLines { get; set; }
+
+        public class Line
+        {
+            public int PurchaseLineId { get; set; }
+
+            public int PurchaseId { get; set; }
+
+            public string Status { get; set; }
+
+            public string SupplierRef { get; set; }
+
+            public DateTime? CheckedIn { get; set; }
+
+            public string ItemDescription { get; set; }
+
+            public int ItemQuantity { get; set; }
+
+            public decimal ItemNet
+            {
+                get
+                {
+                    return ItemGross - ItemTax;
+                }
+            }
+
+            public decimal ItemGross { get; set; }
+
+            public decimal ItemTax { get; set; }
+
+            public decimal ShippingNet
+            {
+                get
+                {
+                    return ShippingGross - ShippingTax;
+                }
+            }
+
+            public decimal ShippingGross { get; set; }
+
+            public decimal ShippingTax { get; set; }
+
+            public decimal OtherNet
+            {
+                get
+                {
+                    return OtherGross - OtherTax;
+                }
+            }
+
+            public decimal OtherGross { get; set; }
+
+            public decimal OtherTax { get; set; }
+
+            public decimal LineTotalNet
+            {
+                get
+                {
+                    return (ItemGross + ShippingGross + OtherGross) - (ItemTax + ShippingTax + OtherTax);
+                }
+            }
+
+            public decimal LineTotalTax
+            {
+                get
+                {
+                    return ItemTax + ShippingTax + OtherTax;
+                }
+            }
+
+            public decimal LineTotalGross
+            {
+                get
+                {
+                    return ItemGross + ShippingGross + OtherGross;
+                }
+            }
+
+            public bnhtrade.Core.Model.Account.TaxCodeInfo AccountTaxCode { get; set; }
+
+            public int? Tax_AccountTransactionId { get; set; }
+
+            public int Net_AccountChartOfId { get; set; }
+
+            public int? Net_AccountTransactionId { get; set; }
+
+            public DateTime RecordCreated { get; set; }
+
+            public DateTime RecordModified { get; set; }
+
+            public bool IsActive { get; set; }
+        }
+    }
+}