using FikaAmazonAPI.AmazonSpApiSDK.Models.ProductPricing;
using System;
using System.Collections.Generic;
using Microsoft.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Transactions;

namespace bnhtrade.Core.Data.Database.Sku
{
    internal class InsertSku : Connection
    {
        public int InsertNew(int productId, int conditionId, int accountTaxCodeId)
        {
            using (TransactionScope scope = new TransactionScope())
            using (SqlConnection conn = new SqlConnection(SqlConnectionString))
            {
                conn.Open();

                // check tax code id is a valid for SKU
                var dbTax = new Data.Database.Account.ReadTaxCode();
                var taxCodeList = dbTax.GetByTaxCodeId(new List<int> { accountTaxCodeId });

                if (taxCodeList.ContainsKey(accountTaxCodeId) == false)
                {
                    throw new Exception("AccountTaxCodeID=" + accountTaxCodeId + " doesn't exist!");
                }
                else if (taxCodeList[accountTaxCodeId].IsValidOnIncome == 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;
            }
        }
    }
}