#pragma once
#include <coff/archive.hpp>
#include <coff/image.hpp>
#include <theo/engine/iff.hpp>
#include <xtils.hpp>

namespace theo
{
    class swapchain_t
    {
        /// <summary>
        /// pair of front and back buffers...
        /// changes are flushed to the back buffer, then the front
        /// buffer gets overwritten by the back buffer when swapped...
        /// </summary>
        struct pair_t
        {
            std::vector< std::uint8_t > front, back;
        };

        std::vector< pair_t > objs;
        std::vector< std::uint8_t > archive;

      public:
        explicit swapchain_t( const std::vector< std::uint8_t > &img );
        static std::shared_ptr< swapchain_t > make( const std::vector< std::uint8_t > &img );

        /// <summary>
        /// if theo::swapchain::swap takes in an empty vector then it will simply fill it up
        /// instead of flushing the iff data to the back buffer then swapping...
        /// </summary>
        /// <param name="iffs"></param>
        void swap( std::vector< iff_t > &iffs );
    };
} // namespace theo