#ifndef QUERY_OBJECT_PARAMETER_BINDER_HPP
#define QUERY_OBJECT_PARAMETER_BINDER_HPP

#include "matador/utils/attribute_writer.hpp"
#include "matador/utils/default_type_traits.hpp"

#include "matador/utils/access.hpp"
#include "matador/utils/field_attributes.hpp"
#include "matador/utils/foreign_attributes.hpp"
#include "matador/utils/primary_key_attribute.hpp"

namespace matador::sql {

namespace detail {

class fk_binder
{
public:
  template<class Type>
  void bind(Type &obj, const size_t column_index, utils::attribute_writer &binder)
  {
    binder_ = &binder;
    index_ = column_index;
    access::process(*this, obj);
    binder_ = nullptr;
  }

  template<typename ValueType>
  void on_primary_key(const char *id, ValueType &value, const utils::primary_key_attribute& attr = utils::default_pk_attributes);
  static void on_revision(const char * /*id*/, unsigned long long &/*rev*/) {}

  template < class Type >
  static void on_attribute(const char * /*id*/, Type &/*x*/, const utils::field_attributes &/*attr*/ = utils::null_attributes) {}
  template < class Pointer >
  static void on_belongs_to(const char * /*id*/, Pointer &/*x*/, const utils::foreign_attributes &/*attr*/ = utils::default_foreign_attributes) {}
  template < class Pointer >
  static void on_has_one(const char * /*id*/, Pointer &/*x*/, const utils::foreign_attributes &/*attr*/ = utils::default_foreign_attributes) {}

  template<class ContainerType>
  static void on_has_many(const char * /*id*/,
                          ContainerType &/*c*/,
                          const char * /*join_column*/,
                          const utils::foreign_attributes &/*attr*/ = utils::default_foreign_attributes) {}
  template<class ContainerType>
  static void on_has_many_to_many(const char * /*id*/,
                                  ContainerType &/*c*/,
                                  const char * /*join_column*/,
                                  const char * /*inverse_join_column*/,
                                  const utils::foreign_attributes &/*attr*/) {}
  template<class ContainerType>
  static void on_has_many_to_many(const char * /*id*/,
                                  ContainerType &/*c*/,
                                  const utils::foreign_attributes &/*attr*/) {}

private:
  utils::attribute_writer *binder_{};
  size_t index_{0};
};

}

class object_parameter_binder {
public:
  explicit object_parameter_binder(bool include_primary_key = true);

  template<class Type>
  void bind(Type &obj, utils::attribute_writer &binder) {
    binder_ = &binder;
    access::process(*this, obj);
    binder_ = nullptr;
  }

  void reset(size_t start_index);
  [[nodiscard]] size_t current_index() const;

  template < class Type >
  void on_primary_key(const char * /*id*/, Type &val, const utils::primary_key_attribute& attr = utils::default_pk_attributes) {
    if (include_primary_key_) {
      utils::data_type_traits<Type>::bind_value(*binder_, index_++, val, attr.size());
    }
  }
  void on_revision(const char *id, uint64_t &/*rev*/);

  template<typename Type>
  void on_attribute(const char * /*id*/, Type &val, const utils::field_attributes &/*attr*/ = utils::null_attributes) {
    utils::data_type_traits<Type>::bind_value(*binder_, index_++, val);
  }

  template<class Type, template < class ... > class Pointer>
  void on_belongs_to(const char * /*id*/, Pointer<Type> &x, const utils::foreign_attributes &/*attr*/ = utils::default_foreign_attributes) {
    fk_binder_.bind(*x, index_++, *binder_);
  }
  template<class Type, template < class ... > class Pointer>
  void on_has_one(const char * /*id*/, Pointer<Type> &x, const utils::foreign_attributes &/*attr*/ = utils::default_foreign_attributes) {
    fk_binder_.bind(*x, index_++, *binder_);
  }
  template<class ContainerType>
  static void on_has_many(const char * /*id*/,
                          ContainerType &/*c*/,
                          const char * /*join_column*/,
                          const utils::foreign_attributes &/*attr*/ = utils::default_foreign_attributes) {}
  template<class ContainerType>
  static void on_has_many_to_many(const char * /*id*/,
                                  ContainerType &/*c*/,
                                  const char * /*join_column*/,
                                  const char * /*inverse_join_column*/,
                                  const utils::foreign_attributes &/*attr*/) {}
  template<class ContainerType>
  static void on_has_many_to_many(const char * /*id*/,
                                  ContainerType &/*c*/,
                                  const utils::foreign_attributes &/*attr*/) {}

private:
  utils::attribute_writer *binder_{};
  size_t index_{0};
  detail::fk_binder fk_binder_;
  bool include_primary_key_{true};
};

namespace detail {

template<typename ValueType>
void fk_binder::on_primary_key(const char * /*id*/, ValueType &value, const utils::primary_key_attribute& attr) {
  utils::data_type_traits<ValueType>::bind_value(*binder_, index_++, value, attr.size());
}

}
}
#endif //QUERY_OBJECT_PARAMETER_BINDER_HPP