// Copyright (C) 2010, Guy Barrand. All rights reserved.
// See the file tools.license for terms.

#ifndef tools_sg_mf
#define tools_sg_mf

// mf for multiple field.

#include "bmf"

#include "../stype"
#include "../io/iwbuf"
#include "../io/irbuf"
#include "../HEADER"

namespace tools {
namespace sg {

template <class T>
class mf : public bmf<T> {
  typedef bmf<T> parent;
public:
  static const std::string& s_class() {
    static const std::string s_v("tools::sg::mf<"+stype(T())+">");
    return s_v;
  }
  virtual void* cast(const std::string& a_class) const {
    if(void* p = cmp_cast< mf<T> >(this,a_class)) {return p;}
    return parent::cast(a_class);
  }
  virtual const std::string& s_cls() const {return s_class();}
public:
  virtual bool write(io::iwbuf& a_buffer) {
    const std::vector<T>& vec = parent::m_values;
    return a_buffer.write_vec((uint32)vec.size(),vec.data());
  }
  virtual bool read(io::irbuf& a_buffer) {
    std::vector<T>& vec = parent::m_values;
    return a_buffer.read_std_vec(vec);
  }
  virtual bool dump(std::ostream& a_out) {
    const std::vector<T>& vec = parent::m_values;
    a_out << "size : " << vec.size() << std::endl;
    typedef typename std::vector<T>::const_iterator cit_t;
    for(cit_t it=vec.begin();it!=vec.end();++it) {
      a_out << "  " << (*it) << std::endl;
    }
    return true;
  }
  virtual bool s_value(std::string& a_s) const {a_s.clear();return false;}
  virtual bool s2value(const std::string&) {return false;}
public:
  mf(){}
  mf(const T& a_v):parent(a_v){}
  mf(const std::vector<T>& a_v):parent(a_v){}
  virtual ~mf(){}
public:
  mf(const mf& a_from):parent(a_from){}
  mf& operator=(const mf& a_from){
    parent::operator=(a_from);
    return *this;
  }
public:
  mf& operator=(const std::vector<T>& a_from){
    parent::operator=(a_from);
    return *this;
  }
  mf& operator=(const T& a_v){
    parent::operator=(a_v);
    return *this;
  }
};

class mf_string : public bmf<std::string> {
  TOOLS_HEADER(mf_string,tools::sg::mf_string,bmf<std::string>)
public:
  virtual bool write(io::iwbuf& a_buffer) {
    return a_buffer.write_vec(m_values);
  }
  virtual bool read(io::irbuf& a_buffer) {
    std::vector<std::string>& vec = parent::m_values;
    return a_buffer.read_vec(vec);
  }
  virtual bool dump(std::ostream& a_out) {
    const std::vector<std::string>& vec = parent::m_values;
    a_out << "size : " << vec.size() << std::endl;
    std::vector<std::string>::const_iterator it;
    for(it=vec.begin();it!=vec.end();++it) {
      a_out << "  \"" << (*it) << "\"" << std::endl;
    }
    return true;
  }
  virtual bool s_value(std::string& a_s) const {a_s.clear();return false;}
  virtual bool s2value(const std::string&) {return false;}
public:
  mf_string():parent(){}
  mf_string(const std::string& a_v):parent(a_v){}
  mf_string(const std::vector<std::string>& a_v):parent(a_v){}
  virtual ~mf_string(){}
public:
  mf_string(const mf_string& a_from):parent(a_from){}
  mf_string& operator=(const mf_string& a_from){
    parent::operator=(a_from);
    return *this;
  }
public:
  mf_string& operator=(const std::vector<std::string>& a_value){
    parent::operator=(a_value);
    return *this;
  }
  mf_string& operator=(const char* a_cstr){
    parent::operator=(a_cstr);
    return *this;
  }
};

template <class T>
class mf_enum : public bmf<T> {
  typedef bmf<T> parent;
public:
  static const std::string& s_class() {
    static const std::string s_v("tools::sg::mf_enum");
    return s_v;
  }
  virtual void* cast(const std::string& a_class) const {
    if(void* p = cmp_cast< mf_enum<T> >(this,a_class)) {return p;}
    return parent::cast(a_class);
  }
  virtual const std::string& s_cls() const {return s_class();}
public:
  virtual bool write(io::iwbuf& a_buffer) {
    const std::vector<T>& vec = parent::m_values;
    std::vector<int16> v; //an enum can be negative.
    typedef typename std::vector<T>::const_iterator cit_t;
    for(cit_t it=vec.begin();it!=vec.end();++it) v.push_back(*it);
    return a_buffer.write_vec((uint32)v.size(),v.data());
  }
  virtual bool read(io::irbuf& a_buffer) {
    std::vector<int16> v; //an enum can be negative.
    if(!a_buffer.read_std_vec(v)) return false;
    std::vector<T>& vec = parent::m_values;
    vec.clear();
    std::vector<int16>::const_iterator it;
    for(it=v.begin();it!=v.end();++it) vec.push_back((T)(*it));
    return true;
  }
  virtual bool dump(std::ostream& a_out) {
    const std::vector<T>& vec = parent::m_values;
    a_out << "size : " << vec.size() << std::endl;
    typedef typename std::vector<T>::const_iterator cit_t;
    for(cit_t it=vec.begin();it!=vec.end();++it) {
      a_out << "  " << (*it) << std::endl;
    }
    return true;
  }
  virtual bool s_value(std::string& a_s) const {a_s.clear();return false;}
  virtual bool s2value(const std::string&) {return false;}
public:
  mf_enum():parent(){}
  mf_enum(const T& a_v):parent(a_v){}
  mf_enum(const std::vector<T>& a_v):parent(a_v){}
  virtual ~mf_enum(){}
public:
  mf_enum(const mf_enum& a_from):parent(a_from){}
  mf_enum& operator=(const mf_enum& a_from){
    parent::operator=(a_from);
    return *this;
  }
};

//exa mf_vec<colorf,float>

///////////////////////////////////////////////////////////
//the three below funcs are for :
//  mf_vec< std::vector<std::string> ,std::string> opts;
///////////////////////////////////////////////////////////
inline std::ostream& operator<<(std::ostream& a_out,const std::vector<std::string>&) {
  //for mf_vec::dump.
  return a_out;
}

inline bool set_from_vec(std::vector<std::string>&,const std::vector<std::string>&) {
  //for mf_vec::read(io::irbuf&)
  return false;
}

inline const std::string* get_data(const std::vector<std::string>& a_v) {
  return a_v.data();
}
///////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////


template <class T,class TT>
class mf_vec : public bmf<T> {
  typedef bmf<T> parent;
public:
  static const std::string& s_class() {
    static const std::string s_v("tools::sg::mf_vec<"+stype(T())+","+stype(TT())+">");
    return s_v;
  }
  virtual void* cast(const std::string& a_class) const {
    if(void* p = cmp_cast< mf_vec<T,TT> >(this,a_class)) {return p;}
    return parent::cast(a_class);
  }
  virtual const std::string& s_cls() const {return s_class();}
public:
  virtual bool write(io::iwbuf& a_buffer) {
    const std::vector<T>& vec = parent::m_values;
    typedef typename std::vector<TT> vec_t;
    std::vector<vec_t> vec_vec;
    typedef typename std::vector<T>::const_iterator cit_t;
    for(cit_t it=vec.begin();it!=vec.end();++it) {

      const T& v = (*it);
      size_t num = v.size();
      const TT* d = get_data(v);

      std::vector<TT> std_vec(num);
      for(size_t i=0;i<num;i++) std_vec[i] = d[i];

      vec_vec.push_back(std_vec);
    }
    return a_buffer.write_std_vec_vec(vec_vec);
  }
  virtual bool read(io::irbuf& a_buffer) {
    std::vector<T>& vec = parent::m_values;
    vec.clear();
    typedef typename std::vector<TT> vec_t;
    std::vector<vec_t> vec_vec;
    if(!a_buffer.read_std_vec_vec(vec_vec)) return false;
    typedef typename std::vector<vec_t>::iterator _it_t;
    for(_it_t it=vec_vec.begin();it!=vec_vec.end();++it) {
      T x;
      if(!set_from_vec(x,*it)) {vec.clear();return false;}
      vec.push_back(x);
    }
    return true;
  }
  virtual bool dump(std::ostream& a_out) {
    const std::vector<T>& vec = parent::m_values;
    a_out << "size : " << vec.size() << std::endl;
    typedef typename std::vector<T>::const_iterator cit_t;
    for(cit_t it=vec.begin();it!=vec.end();++it) {
      a_out << "  " << (*it) << std::endl;
    }
    return true;
  }
  virtual bool s_value(std::string& a_s) const {a_s.clear();return false;}
  virtual bool s2value(const std::string&) {return false;}
public:
  mf_vec():parent(){}
  mf_vec(const T& a_v):parent(a_v){}
  mf_vec(const std::vector<T>& a_v):parent(a_v){}
  virtual ~mf_vec(){}
public:
  mf_vec(const mf_vec& a_from):parent(a_from){}
  mf_vec& operator=(const mf_vec& a_from){
    parent::operator=(a_from);
    return *this;
  }
};

template <class T>
class mf_std_vec : public bmf< std::vector<T> > {
  typedef bmf< std::vector<T> > parent;
public:
  static const std::string& s_class() {
    static const std::string s_v("tools::sg::mf_std_vec<"+stype(T())+">");
    return s_v;
  }
  virtual void* cast(const std::string& a_class) const {
    if(void* p = cmp_cast< mf_std_vec<T> >(this,a_class)) {return p;}
    return parent::cast(a_class);
  }
  virtual const std::string& s_cls() const {return s_class();}
public:
  virtual bool write(io::iwbuf& a_buffer) {
    //used in exlib/sg/text_freetype::unitext
    const std::vector< std::vector<T> >& vec = parent::m_values;
    return a_buffer.write_std_vec_vec(vec);
  }
  virtual bool read(io::irbuf& a_buffer) {
    std::vector< std::vector<T> >& vec = parent::m_values;
    return a_buffer.read_std_vec_vec(vec);
  }
  virtual bool dump(std::ostream& a_out) {
    const std::vector< std::vector<T> >& vec = parent::m_values;
    a_out << "size : " << vec.size() << std::endl;
    typedef typename std::vector< std::vector<T> >::const_iterator cit_t;
    for(cit_t it=vec.begin();it!=vec.end();++it) {
    }
    return true;
  }
  virtual bool s_value(std::string& a_s) const {a_s.clear();return false;}
  virtual bool s2value(const std::string&) {return false;}
public:
  mf_std_vec():parent(){}
  mf_std_vec(const T& a_v):parent(a_v){}
  mf_std_vec(const std::vector<T>& a_v):parent(a_v){}
  virtual ~mf_std_vec(){}
public:
  mf_std_vec(const mf_std_vec& a_from):parent(a_from){}
  mf_std_vec& operator=(const mf_std_vec& a_from){
    parent::operator=(a_from);
    return *this;
  }
};

}}

#endif