using Microsoft.Reporting.WinForms;
using SteamWare;
using System;
using System.Data;

/// <summary>
/// Classe che restituisce uno stream ed i dati accessori per reinviare un report in pdf
/// </summary>
public class reportExporter
{
  /// <summary>
  /// mimeType del report
  /// </summary>
  public string mimeType;
  /// <summary>
  /// encoding dei dati
  /// </summary>
  public string encoding;
  /// <summary>
  /// nome estensione
  /// </summary>
  public string fileNameExtension;
  /// <summary>
  /// steam di bytes del report
  /// </summary>
  public byte[] renderedBytes;
  /// <summary>
  /// metodo protected
  /// </summary>
  public reportExporter()
  {
  }
  /// <summary>
  /// carica i dati richiesti dal report dalla StoredProcedure (filtrando quindi...)
  /// </summary>
  /// <param name="tipoReport">report ammessi: RichiestaIntervento</param>
  /// <param name="idxObj">num int mtz</param>
  /// <returns>tabella dati</returns>
  private DataTable caricaDati(reportRichiesto tipoReport, string idxObj)
  {
    // calcolo idxODL
    int idxOdl = 0;
    try
    {
      idxOdl = Convert.ToInt32(idxObj);
    }
    catch
    { }
    DataTable tab = new DataTable();
    switch (tipoReport)
    {
      case reportRichiesto.SchedaODL:
        tab = (DataTable)MapoDb.DataLayer.obj.taODL.getByIdx(idxOdl, false);
        break;
        //case reportRichiesto.RichiestaIntervento:
        //    tab = (DataTable)TA_app.obj.taInterventiMtz.getByIdx(Convert.ToInt32(idxObj));
        //    break;
        //default:
        //    break;
    }
    return tab;
  }
  /// <summary>
  /// renderizza il report in pdf
  /// </summary>
  /// <param name="tipoReport">report ammessi: RichiestaIntervento</param>
  /// <param name="parametro">idx della richiesta (numIntMtz)</param>
  /// <returns></returns>
  public void popolaPdfStream(reportRichiesto tipoReport, string parametro)
  {
    LocalReport report = new LocalReport();
    devInfoParam deviceInfo = new devInfoParam("PDF", "21cm", "29.7cm", "0.2cm", "0.2cm", "0.2cm", "0.2cm");
    switch (tipoReport)
    {
      case reportRichiesto.SchedaODL:
        report.ReportPath = @".\Reports\Donati_ODL.rdlc";
        report.DataSources.Add(new ReportDataSource("MoonPro", caricaDati(tipoReport, parametro))); // OCCHIO!!! va messa sorgente dati CORRETTA
        deviceInfo = new devInfoParam("PDF", "29.7cm", "21cm", "0.2cm", "0.2cm", "0.2cm", "0.2cm");
        break;
      default:
        break;
    }
    createPdfStream(report, deviceInfo.xmlParam);
  }
  /// <summary>
  /// crea il vero e proprio stream pdf
  /// </summary>
  /// <param name="report"></param>
  /// <param name="deviceInfo"></param>
  private void createPdfStream(LocalReport report, string deviceInfo)
  {
    // export in PDF
    string reportType = "PDF";
    Warning[] warnings;
    string[] streams;
    renderedBytes = report.Render(
        reportType,
        deviceInfo,
        out mimeType,
        out encoding,
        out fileNameExtension,
        out streams,
        out warnings);
  }

}