///
/// \file    cafeDataType.h
/// \author  Jan Chrin, PSI
/// \date    Release: February 2015
/// \version CAFE 1.0.0
///

#ifndef CAFEDATATYPE_H
#define CAFEDATATYPE_H
 
#include <cadef.h>
#include <iostream>
#include <string>
#include <map>

enum CAFE_DATATYPE  {
  CAFE_TYPENOTCONN  = TYPENOTCONN, // -1 val returned by ca_field_type when channel not connected
  CAFE_STRING       = DBF_STRING,  // 0
  CAFE_SHORT        = DBF_SHORT,   // 1
  CAFE_INT          = DBF_INT,     // 1
  CAFE_FLOAT        = DBF_FLOAT,   // 2
  CAFE_ENUM         = DBF_ENUM,    // 3
  CAFE_USHORT       = DBF_ENUM,    // 3
  CAFE_CHAR         = DBF_CHAR,    // 4
  CAFE_LONG         = DBF_LONG,    // 5
  CAFE_DOUBLE       = DBF_DOUBLE,  // 6
  CAFE_NO_ACCESS    = DBF_NO_ACCESS, //7
  CAFE_INVALID_DATATYPE =   8,
  CAFE_NOT_REQUESTED    = 100,
  CAFE_NOT_SHOWN        = 101   // (in stop monitor)
};

/**
 *  Provides methods to convert between
 *  the CAFE_DATATYPES and text equivalent
 */
class CAFEDataTypeCode {
  typedef std::map<int, std::string> mapLongString;
private:  
  mapLongString   mapDataType;
  mapLongString::iterator pos;
public:
  CAFEDataTypeCode() {
	 mapDataType.insert(std::make_pair((int) CAFE_TYPENOTCONN,       "CAFE_TYPENOTCONN" ));
	 mapDataType.insert(std::make_pair((int) CAFE_STRING,            "DBF_STRING" ));
	 mapDataType.insert(std::make_pair((int) CAFE_SHORT,             "DBF_SHORT"  ));
	 mapDataType.insert(std::make_pair((int) CAFE_INT,               "DBF_SHORT"  ));
	 mapDataType.insert(std::make_pair((int) CAFE_FLOAT,             "DBF_FLOAT"  ));
	 mapDataType.insert(std::make_pair((int) CAFE_ENUM,              "DBF_ENUM"   ));
	 mapDataType.insert(std::make_pair((int) CAFE_CHAR,              "DBF_CHAR"   ));
	 mapDataType.insert(std::make_pair((int) CAFE_LONG,              "DBF_LONG"   ));
	 mapDataType.insert(std::make_pair((int) CAFE_DOUBLE,            "DBF_DOUBLE" ));
	 mapDataType.insert(std::make_pair((int) CAFE_NO_ACCESS,         "DBF_NO_ACCESS"   ));
	 mapDataType.insert(std::make_pair((int) CAFE_INVALID_DATATYPE,  "CAFE_INVALID_DATATYPE"));
	 mapDataType.insert(std::make_pair((int) CAFE_NOT_REQUESTED,     "CAFE_NOT_REQUESTED"));
	 mapDataType.insert(std::make_pair((int) CAFE_NOT_SHOWN,         "CAFE_NOT_SHOWN (IN STOP MONITOR)"));
  };

  ~CAFEDataTypeCode() {};
  
  std::string message (int i) {    
    pos = mapDataType.find(i);    
    if (pos != mapDataType.end()) return    pos->second;  
    return  "CAFE_DATATYPE_UNKNOWN";
  };
  
	
  std::string asString (int i) {    
    pos = mapDataType.find(i);    
    if (pos != mapDataType.end()) return    pos->second;  
    return  "CAFE_DATATYPE_UNKNOWN";
  };
	
  int enumIs (std::string message) {
    for (pos=mapDataType.begin(); pos != mapDataType.end(); ++pos)       
      if (pos->second==message) return pos->first;      
    return  -1;
  };
	
	
  int asEnum (std::string message) {
    for (pos=mapDataType.begin(); pos != mapDataType.end(); ++pos)       
      if (pos->second==message) return pos->first;      
    return  -1;
  };

  void show() {print();}

  void print ( ) {
    std::cout << "------------------"   << std::endl;
    std::cout << "CAFE_DATATYPE LIST" << std::endl;
    std::cout << "-----------------"   << std::endl;
    for (pos=mapDataType.begin(); pos != mapDataType.end(); ++pos) {
        std::cout << pos->first << " " << pos->second << std::endl;
    }
    std::cout << "-----------------" << std::endl;
  };
    
};

/**
 *  A union of CAFE primitive datatypes
 */
union CAFE_DATATYPE_UNION {
  dbr_string_t   str; 
  dbr_short_t  s;
  dbr_float_t  f;
  dbr_enum_t  us;  //unsigned short us;
  dbr_char_t  ch;  //unsigned char  ch;
  dbr_long_t   l;  //int l;
  dbr_double_t d;
};

typedef CAFE_DATATYPE_UNION * CAFE_DATATYPE_UNION_SEQ;



#endif