Program Listing for File ComponentExporter.hpp

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#pragma once

#include "DllHelper.hpp"
#include "Resource.hpp"

#include <functional>
#include <memory>
#include <typeindex>

namespace Cacao {
    class Script;
    class Component;

    class CACAO_API ComponentExporter : public Resource, std::enable_shared_from_this<ComponentExporter> {
      public:
        const std::type_index type;

        template<typename T>
            requires std::is_base_of_v<Component, T> && (!std::is_same_v<Script, T>)
        static ComponentExporter Create(std::function<std::shared_ptr<T>> factory, const std::string& addr) {
            return ComponentExporter(addr, typeid(T), [factory]() { return std::static_pointer_cast<Component>(factory()); });
        }

        std::shared_ptr<Component> Instantiate();

      private:
        ComponentExporter(const std::string& addr, std::type_index tp, std::function<std::shared_ptr<Component>()> f)
          : Resource(addr), type(tp), factory(f) {}

        const std::function<std::shared_ptr<Component>()> factory;
    };
}