using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace bnhtrade.Core.Logic.Export
{
    public class SalesInvoice
    {
        private string sqlConnectionString;
        private Logic.Log.LogEvent log = new Log.LogEvent();

        public SalesInvoice(string sqlConnectionString)
        {
            this.sqlConnectionString = sqlConnectionString;
        }

        public string GetNextTempInvoiceNumber()
        {
            var sequence = new Data.Database.Programmability.Sequence(sqlConnectionString);
            return "_tmp" + sequence.GetNext("ExportTempInvoiceNumber").ToString("00000000");
        }

        public void AddTempInvoiceNumber(IEnumerable<Model.Account.IInvoice> invoiceList, bool overwriteExisting)
        {
            for (int i = 0; i < invoiceList.Count(); i++)
            {
                if (invoiceList.ElementAt(i).InvoiceNumber != null && overwriteExisting == false)
                {
                    continue;
                }
                invoiceList.ElementAt(i).InvoiceNumber = GetNextTempInvoiceNumber();
            }
        }

        public void SaveSalesInvoice(List<Model.Account.SalesInvoice> invoiceList)
        {
            // validate the list of invoices
            var validateInvoice = new Logic.Validate.SalesInvoice();
            validateInvoice.IsValidExportInvoice(invoiceList);
            if (validateInvoice.IsValidResult == false)
            {
                log.LogError("Invalid Sales invoice(s) found. See extended info.", validateInvoice.ValidationResultListToString());
                return;
            }
            validateInvoice = null;

            // save to database
            new Data.Database.Export.CreateSalesInvoice(sqlConnectionString).Execute(invoiceList);
        }
    }
}