ContainerAdapters.h

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#pragma once
#include "common/Export.h"
 
 
#include "common/Time.h"
 
#include "common/Container.h"
#include "vehicle/VehicleTypes.h"
 
#include <string>
 
namespace eve::vehicle {
 
struct VehicleSeatContainerObject final : eve::container::ContainerObjectPayload {
    int         occupantId = 0;
    std::string driver;
};
 
class EVENGINE_API_DOMAINS VehicleSeatContainerAdapter final : public eve::container::IContainer {
public:
    VehicleSeatContainerAdapter(eve::container::ContainerId id, VehicleEntity* vehicle,
                                eve::container::AcceptedCondition accepted = {});
 
    [[nodiscard]] const eve::container::ContainerDescriptor& descriptor() const noexcept override {
        return descriptor_;
    }
    [[nodiscard]] eve::Result<eve::container::ContainerSnapshot> snapshot() const override;
    [[nodiscard]] eve::Result<void>                              validateInsert(
                                     const eve::container::ContainerObject& object, std::optional<eve::container::SlotIndex> destination,
                                     std::optional<eve::container::MembershipId> ignoredObject = std::nullopt) const override;
    [[nodiscard]] eve::Result<std::unique_ptr<eve::container::IContainer::PreparedState>> prepare(
        const eve::container::ContainerSnapshot& expected, const eve::container::ContainerSnapshot& candidate) override;
 
    [[nodiscard]] eve::Revision revision() const noexcept;
 
    [[nodiscard]] eve::Result<eve::container::MembershipId> enter(
        eve::container::SlotIndex seatIndex, int occupantId, eve::container::GameEventSink sink = {},
        eve::SimulationTick tick = eve::SimulationTick::zero());
 
    [[nodiscard]] eve::Result<eve::container::MembershipId> exit(
        eve::container::SlotIndex seatIndex, eve::container::GameEventSink sink = {},
        eve::SimulationTick tick = eve::SimulationTick::zero());
 
private:
    class PreparedState;
 
    [[nodiscard]] VehicleEntity*                         vehicle() const noexcept;
    [[nodiscard]] std::uint64_t                          nextEventSerial() noexcept;
    [[nodiscard]] static eve::container::MembershipId    occupantId(int occupantId);
    [[nodiscard]] static eve::container::ContainerObject describe(int occupantId, std::string driver = {});
 
    eve::container::ContainerDescriptor descriptor_;
    ecs::EntityHandle                   vehicle_;
    std::uint64_t                       eventSerial_ = 0;
};
 
}  // namespace eve::vehicle