unit_registry.h

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// === unit_registry.h =================================================================================================
//                                               Sen Infrastructure
//                   Released under the Apache License v2.0 (SPDX-License-Identifier Apache-2.0).
//                                    See the LICENSE.txt file for more information.
//                   © Airbus SAS, Airbus Helicopters, and Airbus Defence and Space SAU/GmbH/SAS.
// =====================================================================================================================
 
#ifndef SEN_CORE_META_UNIT_REGISTRY_H
#define SEN_CORE_META_UNIT_REGISTRY_H
 
// sen
#include "sen/core/base/class_helpers.h"  // for SEN_NOCOPY_NOMOVE
#include "sen/core/base/iterator_adapters.h"
#include "sen/core/meta/unit.h"  // for Unit, UnitCategory
 
// std
#include <memory>
#include <optional>
#include <string>
#include <string_view>  // for string_view
#include <vector>       // for vector
 
namespace sen
{


class UnitRegistry final
{
  SEN_NOCOPY_NOMOVE(UnitRegistry)
 
public:
  using UnitList = std::vector<Unit*>;
  using UnitStorage = std::vector<std::unique_ptr<Unit>>;
  using UnitRange = sen::util::IteratorRange<util::SmartPtrIteratorAdapter<UnitStorage::const_iterator>>;
 
public:
  static const UnitRegistry& get();
 
public:
  [[nodiscard]] UnitRange getUnits() const noexcept;

  [[nodiscard]] UnitList getUnitsByCategory(UnitCategory category) const;

  [[nodiscard]] std::optional<const Unit*> searchUnitByName(std::string_view name) const;

  [[nodiscard]] std::optional<const Unit*> searchUnitByAbbreviation(std::string_view abbrev) const;
 
private:
  UnitRegistry();
  ~UnitRegistry() = default;
 
private:
  struct DeprecatedAbbreviation
  {
    std::string abbreviation;
    const Unit* targetUnit;
  };
 
  UnitStorage units_;
  std::vector<DeprecatedAbbreviation> deprecatedAbbreviations_;
};

 
}  // namespace sen
 
#endif  // SEN_CORE_META_UNIT_REGISTRY_H