BealeEngineering/BealeEngineering/BealeEngineering.Core/Logic/Export/XeroInvoiceFlatFile.cs

using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using CsvHelper;

namespace BealeEngineering.Core.Logic.Export
{
    public class XeroInvoiceFlatFile
    {
        string sqlConnectionString;

        public XeroInvoiceFlatFile(string sqlConnectionString)
        {
            this.sqlConnectionString = sqlConnectionString;

            FileOutputPath =
                Environment.GetFolderPath(Environment.SpecialFolder.UserProfile)
                + @"\Dropbox\Beale Engineering Services Ltd\BE Accounts\Xero-Export-Invoices.csv";
        }

        public int InvoicesExported { get; private set; } = 0;

        public string FileOutputPath { get; set; }

        public void Execute()
        {
            if (string.IsNullOrWhiteSpace(FileOutputPath))
            { throw new Exception("File path not set"); }

            // read all invoice from db
            var invoiceList = new Data.Database.Sale.ReadInvoice(sqlConnectionString).Read();

            // map into xeroinvoice dto
            var xeroInvoiceList = new Logic.Adapter.XeroInvoiceFlatFile().SaleInvoice(invoiceList);
            if (xeroInvoiceList == null || !xeroInvoiceList.Any())
            { return; }
            else { InvoicesExported = xeroInvoiceList.Count(); }
            var xeroInvoiceDtoList = new Logic.Adapter.XeroInvoiceFlatFileDTO().XeroInvoiceFlatFile(xeroInvoiceList);

            // create flatfile from dto
            using (var writer = new StreamWriter(FileOutputPath))
            using (var csv = new CsvWriter(writer, CultureInfo.InvariantCulture))
            {
                csv.WriteRecords(xeroInvoiceDtoList);
                //csv.WriteRecords(xeroInvoiceList);
            }
        }
    }
}