/*************************************************************************
 * Copyright (c) 2015 fortiss GmbH
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *   Gerd Kainz - initial API and implementation and/or initial documentation
 *************************************************************************/

#ifndef _IW_H_
#define _IW_H_

#include <processinterface.h>

#ifdef IN
#undef IN
#endif

#ifdef OUT
#undef OUT
#endif

/*! /brief generic class for IW function blocks providing access to one word physical input
 *
 * In order that this FB can be used implementations need to provide a class CProcessInterface
 * this class needs to inherit from CProcessInterfaceBase and provide the following functions
 *
 *   - bool initialise(bool paInput)
 *     Initialize the physical input identified with the value of the PARAMS input
 *       - @param paInput: if true it should be an input, if false it should be an output
 *       - @return true on success, false on error
 *
 *   - bool deinitialise()
 *     Deinitialize the physical port
 *       - @return true on success, false on error
 *
 *   - bool readWord()
 *     Read the value of the physical input word and apply it to the function block's OUT() data output
 *       - @return true on success, false on error
 *
 * TODO a higher flexibility and easier use could be achieve if the base class would be a template parameter. However
 *   currently it is very hard to templatize a function block class.
 */
class FORTE_IW: public CProcessInterface{
  DECLARE_FIRMWARE_FB(FORTE_IW)

private:
  static const CStringDictionary::TStringId scm_anDataInputNames[];
  static const CStringDictionary::TStringId scm_anDataInputTypeIds[];
  CIEC_BOOL &QI() {
    return *static_cast<CIEC_BOOL*>(getDI(0));
  };

  CIEC_STRING &PARAMS() {
    return *static_cast<CIEC_STRING*>(getDI(1));
  };

  static const CStringDictionary::TStringId scm_anDataOutputNames[];
  static const CStringDictionary::TStringId scm_anDataOutputTypeIds[];
  CIEC_BOOL &QO() {
    return *static_cast<CIEC_BOOL*>(getDO(0));
  };

  CIEC_STRING &STATUS() {
    return *static_cast<CIEC_STRING*>(getDO(1));
  };

  CIEC_WORD &IN() {
    return *static_cast<CIEC_WORD*>(getDO(2));
  };

  static const TEventID scm_nEventINITID = 0;
  static const TEventID scm_nEventREQID = 1;
  static const TForteInt16 scm_anEIWithIndexes[];
  static const TDataIOID scm_anEIWith[];
  static const CStringDictionary::TStringId scm_anEventInputNames[];

  static const TEventID scm_nEventINITOID = 0;
  static const TEventID scm_nEventCNFID = 1;
  static const TEventID scm_nEventINDID = 2;
  static const TForteInt16 scm_anEOWithIndexes[];
  static const TDataIOID scm_anEOWith[];
  static const CStringDictionary::TStringId scm_anEventOutputNames[];

  static const SFBInterfaceSpec scm_stFBInterfaceSpec;

   FORTE_FB_DATA_ARRAY(2, 2, 3, 0);

  void executeEvent(int pa_nEIID);

public:
  FUNCTION_BLOCK_CTOR_WITH_BASE_CLASS(FORTE_IW, CProcessInterface){
  };

  virtual ~FORTE_IW(){};

};

#endif //close the ifdef sequence from the beginning of the file
