Feature: Sync MWS Shipment with Database

Various restructuring and misc. features added.
Removed reliance on ABrain Amazon MWS NuGet package, added Amazon's own C# lib

src/bnhtrade.Core/Logic/Sku/GetSkuIdByType.cs

@@ -0,0 +1,121 @@
+using System;
+using System.Data.SqlClient;
+using System.Transactions;
+
+namespace bnhtrade.Core.Logic.Sku
+{
+    class GetSkuIdByType
+    {
+        // used for retriving SKU that matched parameters, creates new if required, returns 0 if not found
+        public static int Request(string sqlConnectionString, int productId, int conditionId, int accountTaxCodeId, bool noMatchInsertNew)
+        {
+            using (TransactionScope scope = new TransactionScope())
+            using (SqlConnection conn = new SqlConnection(sqlConnectionString))
+            {
+                conn.Open();
+
+                // look for existing entry
+                using (SqlCommand cmd = new SqlCommand(@"
+                        SELECT 
+                            tblSku.skuSkuID
+                        FROM 
+                            tblSku
+                        WHERE 
+                            (((tblSku.skuProductID)=@productId) AND ((tblSku.skuSkuConditionID)=@conditionId) AND ((tblSku.AccountTaxCodeID)=@accountTaxCodeId));
+                        ", conn))
+                {
+                    cmd.Parameters.AddWithValue("@productId", productId);
+                    cmd.Parameters.AddWithValue("@conditionId", conditionId);
+                    cmd.Parameters.AddWithValue("@accountTaxCodeId", accountTaxCodeId);
+
+                    object obj = cmd.ExecuteScalar();
+                    if (obj != null)
+                    {
+                        return (int)obj;
+                    }
+                }
+
+                // value check insert bool
+                if (noMatchInsertNew == false)
+                {
+                    return 0;
+                }
+                else
+                {
+                    // get this far, check tax code id is a valid for SKU
+                    using (SqlCommand cmd = new SqlCommand(@"
+                            SELECT tblAccountTaxCode.InvoiceSales
+                            FROM tblAccountTaxCode
+                            WHERE (((tblAccountTaxCode.AccountTaxCodeID)=@accountTaxCodeId));
+                            ", conn))
+                    {
+                        cmd.Parameters.AddWithValue("@accountTaxCodeId", accountTaxCodeId);
+
+                        object obj = cmd.ExecuteScalar();
+
+                        if (obj == null)
+                        {
+                            throw new Exception("AccountTaxCodeID=" + accountTaxCodeId + " doesn't exist!");
+                        }
+                        else
+                        {
+                            bool result = (bool)obj;
+                            if (result == false)
+                            {
+                                throw new Exception("AccountTaxCodeID=" + accountTaxCodeId + " is not a valid type for an SKU.");
+                            }
+                        }
+                    }
+
+                    // get info to create sku number
+                    int skuCount;
+                    int skuSuffix;
+                    using (SqlCommand cmd = new SqlCommand("SELECT NEXT VALUE FOR SkuCountSequence;", conn))
+                    {
+                        skuCount = (int)cmd.ExecuteScalar();
+                    }
+                    using (SqlCommand cmd = new SqlCommand(@"
+                            SELECT tblSkuCondition.scnSkuNumberSuffix
+                            FROM tblSkuCondition
+                            WHERE (((tblSkuCondition.scnSkuConditionID)=@conditionId));
+                            ", conn))
+                    {
+                        cmd.Parameters.AddWithValue("@conditionId", conditionId);
+
+                        try
+                        {
+                            skuSuffix = (int)cmd.ExecuteScalar();
+                        }
+                        catch (Exception ex)
+                        {
+                            throw new Exception("Error retriving SKU number suffix for SkuConditionID=" + conditionId + "." +
+                                System.Environment.NewLine + "Error Message: " + ex.Message);
+                        }
+                    }
+                    string skuNumber = skuCount.ToString("D6") + "-" + skuSuffix.ToString("D2");
+
+                    // insert new sku
+                    int skuId;
+                    using (SqlCommand cmd = new SqlCommand(@"
+                            INSERT INTO tblSku 
+                                (skuSkuNumber, skuProductID, skuSkuConditionID, AccountTaxCodeID) 
+                            OUTPUT INSERTED.skuSkuID 
+                            VALUES 
+                                (@skuNumber, @productId, @conditionId, @accountTaxCodeId) 
+                            ", conn))
+                    {
+                        cmd.Parameters.AddWithValue("@skuNumber", skuNumber);
+                        cmd.Parameters.AddWithValue("@productId", productId);
+                        cmd.Parameters.AddWithValue("@conditionId", conditionId);
+                        cmd.Parameters.AddWithValue("@accountTaxCodeId", accountTaxCodeId);
+
+                        skuId = (int)cmd.ExecuteScalar();
+                    }
+
+                    scope.Complete();
+                    return skuId;
+                }
+            }
+        }
+    }
+}