#ifndef SHADOW_SCHEMA_HPP
#define SHADOW_SCHEMA_HPP

#include "matador/object/basic_object_info.hpp"

#include "matador/utils/result.hpp"
#include "matador/utils/error.hpp"

#include <memory>
#include <typeindex>

namespace matador::object {
class repository;
class repository_node;
class object;
}

namespace matador::object::internal {
class shadow_repository {
private:
  using node_ptr = std::shared_ptr<repository_node>;

public:
  explicit shadow_repository(repository& s);

  [[nodiscard]] repository& repo() const;
  [[nodiscard]] bool contains(const std::type_index& ti) const;
  [[nodiscard]] utils::result<basic_object_info_ref, utils::error> basic_info(const std::type_index& ti) const;
  [[nodiscard]] utils::result<node_ptr, utils::error> find_node(const std::type_index &type_index) const;
  [[nodiscard]] utils::result<node_ptr, utils::error> find_node(const std::string &name) const;
  [[nodiscard]] utils::result<node_ptr, utils::error> attach_node(const std::shared_ptr<repository_node> &node) const;
  [[nodiscard]] utils::result<void, utils::error> detach_node(const std::shared_ptr<repository_node> &node) const;

  [[nodiscard]] bool expecting_relation_node(const std::string &name) const;
  void expect_relation_node(const std::string &name, const std::type_index &ti) const;
  void remove_expected_relation_node(const std::string &name) const;

  [[nodiscard]] std::shared_ptr<object> provide_object_in_advance(const std::type_index &ti, const std::shared_ptr<object>& obj) const;
  [[nodiscard]] bool has_object_for_type(const std::type_index &ti) const;
  [[nodiscard]] std::shared_ptr<object> object_for_type(const std::type_index &ti) const;
  void remove_object_for_type(const std::type_index &ti) const;

  [[nodiscard]] bool is_node_announced(const std::type_index &ti) const;
  void push_announce_node(const std::type_index &ti, const node_ptr &node) const;
  [[nodiscard]] node_ptr announce_node(const std::type_index &ti) const;
  [[nodiscard]] node_ptr pop_announce_node(const std::type_index &ti) const;

private:
  repository& repo_;
};
}
#endif //SHADOW_SCHEMA_HPP