#pragma once

/// \file toggle_value.h
/// \author Folling <folling@ikarus.world>

#include <ikarus/errors.h>
#include <ikarus/macros.h>
#include <ikarus/values/value_cardinality.h>

/// \addtogroup values Values
/// @{

IKARUS_BEGIN_HEADER

/// \brief A numeric value. For example "Age" or "Height".
struct IkarusToggleValue;

/// \brief Creates an empty toggle value.
/// \details If the cardinality is "Single", the value will be initialized with 0.0.
/// \param cardinality The cardinality of the value.
/// \param error_out \see errors.h
/// \return The value or null if an error occurs.
IKA_API IkarusToggleValue * ikarus_toggle_value_create(IkarusValueCardinality cardinality, IkarusErrorData * error_out);

/// \brief Fetches the underlying data of a toggle value at a specific index.
/// \param value The toggle value.
/// \pre \li Must not be null.
/// \param idx The index of the data to fetch.
/// \pre \li Must be less than the size of the value.
/// \param error_out \see errors.h
/// \return The underlying data or NaN if an error occurs.
IKA_API bool ikarus_toggle_value_get(IkarusToggleValue const * value, size_t idx, IkarusErrorData * error_out);

/// \brief Fetches the size of the underlying data of a toggle value.
/// \param value The toggle value.
/// \pre \li Must not be null.
/// \param error_out \see errors.h
/// \return The size of the underlying data or 0 if an error occurs.
IKA_API size_t ikarus_toggle_value_get_size(IkarusToggleValue const * value, IkarusErrorData * error_out);

/// \brief Sets the data of a toggle value at a specific index.
/// \param value The toggle value.
/// \pre \li Must not be null.
/// \param idx The index of the data to set.
/// \pre \li Must be less than the size of the value.
/// \param new_data The new data.
/// \param error_out \see errors.h
IKA_API void ikarus_toggle_value_set(IkarusToggleValue * value, size_t idx, bool new_data, IkarusErrorData * error_out);

/// \brief Inserts a data into a toggle value.
/// \param value The toggle value.
/// \pre \li Must not be null.
/// \pre \li Cardinality must be "Multiple".
/// \param idx The index of the data to insert.
/// \pre \li Must be less than or equal to the size of the value.
/// \param new_data The new data.
/// \param error_out \see errors.h
IKA_API void ikarus_toggle_value_insert(IkarusToggleValue * value, size_t idx, bool new_data, IkarusErrorData * error_out);

/// \brief Removes a data from a toggle value.
/// \param value The toggle value.
/// \pre \li Must not be null.
/// \pre \li Cardinality must be "Multiple".
/// \param idx The index of the data to remove.
/// \pre \li Must be less than the size of the value.
/// \param error_out \see errors.h
IKA_API void ikarus_toggle_value_remove(IkarusToggleValue * value, size_t idx, IkarusErrorData * error_out);

/// \brief Clears a toggle value.
/// \param value The toggle value.
/// \pre \li Cardinality must be "Multiple".
/// \param error_out \see errors.h
IKA_API void ikarus_toggle_value_clear(IkarusToggleValue * value, IkarusErrorData * error_out);

/// \brief Converts a toggle value to a string.
/// \param value The toggle value to convert.
/// \pre \li Must not be null.
/// \param error_out \see errors.h
/// \return The converted string.
/// \remark Must be freed with #ikarus_free.
IKA_API char const * ikarus_toggle_value_to_string(IkarusToggleValue const * value, IkarusErrorData * error_out);

/// \brief Checks if two values are equal.
/// \param lhs The left hand side value.
/// \pre \li Must not be null.
/// \param rhs The right hand side value.
/// \pre \li Must not be null.
/// \param error_out \see errors.h
/// \return True if the values' data are equal, false otherwise.
IKA_API bool ikarus_toggle_value_is_equal(IkarusToggleValue const * lhs, IkarusToggleValue const * rhs, IkarusErrorData * error_out);

/// \brief Creates a copy of a toggle value.
/// \param value The value to copy.
/// \pre \li Must not be null.
/// \param error_out \see errors.h
/// \return The copied value.
IKA_API IkarusToggleValue * ikarus_toggle_value_copy(IkarusToggleValue const * value, IkarusErrorData * error_out);

/// \brief Converts a toggle value to an entity value.
/// \param value The toggle value to convert.
/// \pre \li Must not be null.
/// \param error_out \see errors.h
/// \return The converted entity value.
/// \remark This is the same pointer, so freeing it implies freeing the original value.
IKA_API struct IkarusValueData * ikarus_toggle_value_to_value(IkarusToggleValue * value, IkarusErrorData * error_out);

IKARUS_END_HEADER

/// @}