/*

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  Copyright (c) 2018, Kenneth Troldal Balslev

  All rights reserved.

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions are met:
  - Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
  - Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
  - Neither the name of the author nor the
    names of any contributors may be used to endorse or promote products
    derived from this software without specific prior written permission.

  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

#ifndef OPENXLSX_XLCELL_HPP
#define OPENXLSX_XLCELL_HPP

#pragma warning(push)
#pragma warning(disable : 4251)
#pragma warning(disable : 4275)

#include <memory>

// ===== OpenXLSX Includes ===== //
#include "OpenXLSX-Exports.hpp"
#include "XLCellReference.hpp"
#include "XLCellValue.hpp"
#include "XLFormula.hpp"
#include "XLSharedStrings.hpp"

// ========== CLASS AND ENUM TYPE DEFINITIONS ========== //
namespace OpenXLSX
{
    class XLCellRange;
    class XLSharedStrings;

    /**
     * @brief An implementation class encapsulating the properties and behaviours of a spreadsheet cell.
     */
    class OPENXLSX_EXPORT XLCell
    {
        friend class XLCellIterator;
        friend class XLCellValueProxy;
        friend class XLRowDataIterator;
        friend bool operator==(const XLCell& lhs, const XLCell& rhs);
        friend bool operator!=(const XLCell& lhs, const XLCell& rhs);

    public:
        //---------- Public Member Functions ----------//

        /**
         * @brief Default constructor. Constructs a null object.
         */
        XLCell();

        /**
         * @brief
         * @param cellNode
         * @param sharedStrings
         */
        XLCell(const XMLNode& cellNode, const XLSharedStrings& sharedStrings);

        /**
         * @brief Copy constructor
         * @param other The XLCell object to be copied.
         * @note The copy constructor has been deleted, as it makes no sense to copy a cell. If the objective is to
         * copy the getValue, create the the target object and then use the copy assignment operator.
         */
        XLCell(const XLCell& other);

        /**
         * @brief Move constructor
         * @param other The XLCell object to be moved
         * @note The move constructor has been deleted, as it makes no sense to move a cell.
         */
        XLCell(XLCell&& other) noexcept;

        /**
         * @brief Destructor
         * @note Using the default destructor
         */
        ~XLCell();

        /**
         * @brief Copy assignment operator
         * @param other The XLCell object to be copy assigned
         * @return A reference to the new object
         * @note Copies only the cell contents, not the pointer to parent worksheet etc.
         */
        XLCell& operator=(const XLCell& other);

        /**
         * @brief Move assignment operator [deleted]
         * @param other The XLCell object to be move assigned
         * @return A reference to the new object
         * @note The move assignment constructor has been deleted, as it makes no sense to move a cell.
         */
        XLCell& operator=(XLCell&& other) noexcept;

        /**
         * @brief
         * @return
         */
        explicit operator bool() const;

        /**
         * @brief
         * @return
         */
        XLCellValueProxy& value();

        /**
         * @brief
         * @return
         */
        const XLCellValueProxy& value() const;

        /**
         * @brief get the XLCellReference object for the cell.
         * @return A reference to the cells' XLCellReference object.
         */
        XLCellReference cellReference() const;

        /**
         * @brief get the XLCell object from the current cell offset
         * @return A reference to the XLCell object.
         */
        XLCell offset(uint16_t rowOffset, uint16_t colOffset) const;

        /**
         * @brief
         * @return
         */
        bool hasFormula() const;

        /**
         * @brief
         * @return
         */
        XLFormulaProxy& formula();

        /**
         * @brief
         * @return
         */
        const XLFormulaProxy& formula() const;

        /**
         * @brief
         * @param newFormula
         */

    private:

        /**
         * @brief
         * @param lhs
         * @param rhs
         * @return
         */
        static bool isEqual(const XLCell& lhs, const XLCell& rhs);

        //---------- Private Member Variables ---------- //
        std::unique_ptr<XMLNode> m_cellNode;      /**< A pointer to the root XMLNode for the cell. */
        XLSharedStrings          m_sharedStrings; /**< */
        XLCellValueProxy         m_valueProxy;    /**< */
        XLFormulaProxy           m_formulaProxy; /**< */
    };

}    // namespace OpenXLSX

// ========== FRIEND FUNCTION IMPLEMENTATIONS ========== //
namespace OpenXLSX
{
    /**
     * @brief
     * @param lhs
     * @param rhs
     * @return
     */
    inline bool operator==(const XLCell& lhs, const XLCell& rhs)
    {
        return XLCell::isEqual(lhs, rhs);
    }

    /**
     * @brief
     * @param lhs
     * @param rhs
     * @return
     */
    inline bool operator!=(const XLCell& lhs, const XLCell& rhs)
    {
        return !XLCell::isEqual(lhs, rhs);
    }

}    // namespace OpenXLSX

#pragma warning(pop)
#endif    // OPENXLSX_XLCELL_HPP