#ifndef QUERY_QUERY_HELPER_HPP
#define QUERY_QUERY_HELPER_HPP

#include "macro_map.hpp"

#include <string>
#include <ostream>

template<typename QueryClass>
struct basic_query;

struct table {
  template<typename QueryClass>
  table(const basic_query<QueryClass> &qc);
  const std::string name;
};

struct field {
  const std::string name;

  friend std::ostream& operator<<(std::ostream &out, const field &f) {
    out << f.name;
    return out;
  }
};

template<typename QueryClass>
struct basic_query {
  const table& operator()() const {
    return table_;
  }

  const table table_;
};

template<typename QueryClass>
table::table(const basic_query<QueryClass>&)
: name(QueryClass::internal_table_name_) {
}

#define FIELD(x) const field x{#x};

#define QUERY_HELPER(C, ...) \
namespace qh {     \
namespace internal {                      \
struct C##_query {           \
MAP(FIELD, __VA_ARGS__) \
}; }                     \
static const internal:: C##_query C;  \
}

#endif //QUERY_QUERY_HELPER_HPP