#ifndef BAG_VRTRACKINGLIST_H

#define BAG_VRTRACKINGLIST_H

#include "bag_config.h"

#include "bag_deleteh5dataset.h"

#include "bag_fordec.h"

#include "bag_types.h"

#include <memory>

#include <vector>

namespace H5 {

class DataSet;

}  // namespace H5

namespace BAG {

#ifdef _MSC_VER

#pragma warning(push)

#pragma warning(disable: 4251)  // std classes do not have DLL-interface when exporting

#endif

//! The interface for the variable resolution tracking list.

class BAG_API VRTrackingList final

{

public:

    using value_type = VRTrackingItem;

    using iterator = std::vector<value_type>::iterator;

    using const_iterator = std::vector<value_type>::const_iterator;

    using reference = value_type&;

    using const_reference = const value_type&;

    VRTrackingList(const Dataset& dataset, int compressionLevel);

    VRTrackingList(const VRTrackingList&) = delete;

    VRTrackingList(VRTrackingList&&) = delete;

    // Allow std::make_shared() to call our constructor

    explicit VRTrackingList(const Dataset& dataset);

    VRTrackingList& operator=(const VRTrackingList&) = delete;

    VRTrackingList& operator=(VRTrackingList&&) = delete;

    bool operator==(const VRTrackingList &rhs) const noexcept {

        return m_pH5dataSet == rhs.m_pH5dataSet &&

               weak_ptr_equals(m_pBagDataset, rhs.m_pBagDataset) &&

                itemsEqual(rhs.m_items);

    }

    bool operator!=(const VRTrackingList &rhs) const noexcept {

        return !(rhs == *this);

    }

    iterator begin() & noexcept;

    const_iterator begin() const & noexcept;

    iterator end() & noexcept;

    const_iterator end() const & noexcept;

    const_iterator cbegin() const & noexcept;

    const_iterator cend() const & noexcept;

    void clear() noexcept;

    void push_back(const value_type& value);

    void push_back(value_type&& value);

    template <typename... Args>

    void emplace_back(Args&&... args) &;

    reference front() &;

    const_reference front() const &;

    reference back() &;

    const_reference back() const &;

    void reserve(size_t newCapacity);

    void resize(size_t count);

    value_type* data() & noexcept;

    const value_type* data() const & noexcept;

    bool empty() const noexcept;

    size_t size() const noexcept;

    reference operator[](size_t index) & noexcept;

    const_reference operator[](size_t index) const & noexcept;

    void write() const;

protected:

private:

    std::unique_ptr<::H5::DataSet, DeleteH5dataSet> createH5dataSet(

        int compressionLevel);

    std::unique_ptr<::H5::DataSet, DeleteH5dataSet> openH5dataSet();

    //! The associated BAG Dataset.

    std::weak_ptr<const Dataset> m_pBagDataset;

    //! The items making up the tracking list.

    std::vector<value_type> m_items;

    //! The HDF5 DataSet this class relates to.

    std::unique_ptr<::H5::DataSet, DeleteH5dataSet> m_pH5dataSet;

    bool itemsEqual(std::vector<value_type> other) const {

        auto size = m_items.size();

        bool areEqual = size == other.size();

        if (!areEqual) return areEqual;

        for (size_t i = 0; i < size; i++) {

            auto ours = m_items[i];

            auto theirs = other[i];

            if (ours.row != theirs.row ||

                ours.col != theirs.col ||

                ours.depth != theirs.depth ||

                ours.uncertainty != theirs.uncertainty ||

                ours.track_code != theirs.track_code ||

                ours.list_series != theirs.list_series) {

                return false;

            }

        }

        return areEqual;

    }

    friend Dataset;

};

//! Add an item to the end of the tracking list.

/*!

\param args

    One or more parameters to hand to the constructor of VRTrackingItem.

*/

template <typename... Args>

void VRTrackingList::emplace_back(Args&&... args) &

{

    m_items.emplace_back(std::forward<Args>(args)...);

}

#ifdef _MSC_VER

#pragma warning(pop)

#endif

}  // namespace BAG

#endif  // BAG_VRTRACKINGLIST_H