unit uRptPedidosCliente_Server;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, frxClass, frxDBSet, uDAScriptingProvider,
  uDADataTable, uDACDSDataTable, DB, uDAClasses, frxChart, frxGradient,
  frxChBox, frxCross, frxOLE, frxBarcode, frxRich, uDABINAdapter, uROTypes,
  uDAInterfaces, FactuGES_Intf, frxExportPDF;

type
  TRptPedidosCliente = class(TDataModule)
    DADataCabecera: TDADataSource;
    DADataDetalles: TDADataSource;
    tbl_Cabecera: TDACDSDataTable;
    tbl_Detalles: TDACDSDataTable;
    DABINAdapter: TDABINAdapter;
    frxRichObject1: TfrxRichObject;
    frxBarCodeObject1: TfrxBarCodeObject;
    frxOLEObject1: TfrxOLEObject;
    frxCrossObject1: TfrxCrossObject;
    frxCheckBoxObject1: TfrxCheckBoxObject;
    frxGradientObject1: TfrxGradientObject;
    frxChartObject1: TfrxChartObject;
    frxDBCabecera: TfrxDBDataset;
    frxDBDetalles: TfrxDBDataset;
    schReport: TDASchema;
    DataDictionary: TDADataDictionary;
    frxReport: TfrxReport;
    frxPDFExport1: TfrxPDFExport;
    procedure DataModuleCreate(Sender: TObject);
    procedure frxReportGetValue(const VarName: string; var Value: Variant);
  private
    FConnection: IDAConnection;
    FShowLogotipo: Boolean;
    procedure _GenerarPedido(const AID : Integer); overload;
  public
    function GenerarPedido(const AID : String; const AConLogotipo: Boolean = False): Binary; overload;
    function GenerarReportEnPDF(const ListaID : TIntegerArray; const AConLogotipo: Boolean = False): Binary;
  end;

implementation

{$R *.dfm}

uses
  uDataModuleServer, schPedidosClienteClient_Intf;

const
  rptInforme = 'InfPedidoCliente.fr3';

  { Dataset names for schReport }
  ds_InformeCabecera = 'Informe_Cabecera';
  ds_InformeDetalles = 'Informe_Detalles';


{ TRptPedidosProveedor }


procedure TRptPedidosCliente.DataModuleCreate(Sender: TObject);
begin
  schReport.ConnectionManager := dmServer.ConnectionManager;
  FConnection := dmServer.DarNuevaConexion;
  frxReport.EngineOptions.NewSilentMode := simReThrow;
end;

function TRptPedidosCliente.GenerarPedido(const AID: String; const AConLogotipo: Boolean = False): Binary;
var
  ID_Pedidos: TStringList;
  i: Integer;

begin
  Result := Binary.Create;
  try
    FShowLogotipo := AConLogotipo;
    ID_Pedidos := TStringList.Create;
    ID_Pedidos.CommaText := AID;

    //Vamos generando todos y cada uno de los albaranes recibidos
    for i := 0 to ID_Pedidos.Count - 1 do
        _GenerarPedido(StrToInt(ID_Pedidos.Strings[i]));

    frxReport.PreviewPages.SaveToStream(Result);
  finally
  end;
end;

function TRptPedidosCliente.GenerarReportEnPDF(const ListaID: TIntegerArray;
  const AConLogotipo: Boolean): Binary;
var
  i: Integer;
begin
  FShowLogotipo := AConLogotipo;
  Result := Binary.Create;
  try
    //Vamos generando todos y cada uno de los presupuestos recibidos
    for i := 0 to ListaID.Count - 1 do
        _GenerarPedido(ListaID.Items[i]);

    frxPDFExport1.Stream := Result;
    frxReport.Export(frxPDFExport1)
  finally
  end;
end;

procedure TRptPedidosCliente.frxReportGetValue(const VarName: string;
  var Value: Variant);
begin
  if VarName = 'ShowLogotipo' then
     Value := FShowLogotipo;
end;

procedure TRptPedidosCliente._GenerarPedido(const AID: Integer);
var
  AStream: TMemoryStream;
  dsMaster: IDADataset;
  dsDetail: IDADataset;
begin
  AStream := TMemoryStream.Create;
  FConnection.BeginTransaction; //<--- Creo que no va a hacer falta. "PUES SI ES NECESARIO"

  try
    dsMaster := schReport.NewDataset(FConnection, ds_InformeCabecera, ['ID'], [AID]);
    dsDetail := schReport.NewDataset(FConnection, ds_InformeDetalles, ['ID_PEDIDO'], [AID], False);

    AStream.Clear;
    DABINAdapter.WriteDataset(AStream, dsMaster, [woRows, woSchema], -1);
    DABINAdapter.ReadDataset(AStream, tbl_Cabecera, TRUE, '', TRUE, TRUE);

    AStream.Clear;
    DABINAdapter.WriteDataset(AStream, dsDetail, [woRows, woSchema], -1);
    DABINAdapter.ReadDataset(AStream, tbl_Detalles, TRUE, '', TRUE, TRUE);

    frxReport.LoadFromFile(DarRutaInformes + rptInforme, True);
    frxReport.PrepareReport(False);

  finally
    FConnection.RollbackTransaction; //<--- Creo que no va a hacer falta. "PUES SI ES NECESARIO"
    AStream.Free;
    dsMaster := Nil;
    dsDetail := Nil;
  end;
end;

end.