using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Windows.Forms;
using MercatorApi;
using MercatorUi;

namespace Billing
{
    public class Customizer : MercatorUi.ICustomizers.IBillingEngineCreated, MercatorUi.ICustomizers.IBillingEngineClosed
    {

        public void BillingEngineCreated(MercatorUi.Engine.Gescom.BillingEngine BillingEngine)
        {
            BillingEngine.PrintPrevPrepared += new MercatorUi.Engine.Gescom.BillingEngine.PrintPrevPreparedEventHandler(BillingEngine_PrintPrevPrepared);
        }

        public void BillingEngineClosed(MercatorUi.Engine.Gescom.BillingEngine BillingEngine)
        {
            BillingEngine.PrintPrevPrepared -= new MercatorUi.Engine.Gescom.BillingEngine.PrintPrevPreparedEventHandler(BillingEngine_PrintPrevPrepared);
        }

        void BillingEngine_PrintPrevPrepared(object sender, MercatorUi.Engine.Gescom.BillingEngine.PrintPrevPreparedEventArgs e)
        {
            MercatorUi.Engine.Gescom.BillingEngine BillingEngine = (MercatorUi.Engine.Gescom.BillingEngine)sender;
            if (BillingEngine.CLI == null) // le client n'a pas été saisi
                return;

            string reqSql = "select journal,piece,date,(case when tot<0 then -tot else 0 end) as debit,(case when tot>0 then tot else 0 end) as credit \r\n"
                + "    from lignes_c (NOLOCK) \r\n"
                + "    where (id_cli=@id_cli) and (lettrage<=0) \r\n"
                + "    order by date";
            DataSet ds = Api.Zselect(Globals.RepData, reqSql, new MercatorSqlParam("@id_cli", BillingEngine.CLI["C_ID"], SqlDbType.Char, 10));
            if (ds == null)
                return;

            ds.Tables[0].TableName = "ExtraitCompte";
            e.DataSet.Tables.Add(ds.Tables[0].Copy()); // ajout d'une copie de la table de cet extrait de compte dans le dataset qui va être envoyé au générateur de rapports

            e.Parameters.Add("NRowsExtraitCompte", ds.Tables[0].Rows.Count); // ajout d'un paramètre passé au générateur de rapports : le nombre de ligne dans cette datatable
        }
    }
}