ContainerAdapters.h

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#pragma once
#include "common/Export.h"
 
 
#include "common/Container.h"
#include "inventory/Bag.h"
#include "inventory/Equipment.h"
 
namespace eve::inventory {
 
enum class InventoryContainerKind : std::uint8_t { Bag, Equipment };
 
struct InventoryContainerObject final : eve::container::ContainerObjectPayload {
    ItemStack   stack;
    std::string equipmentSlot;
};
 
class EVENGINE_API_FOUNDATION InventoryContainerAdapter final : public eve::container::IContainer {
public:
    InventoryContainerAdapter(eve::container::ContainerId id, Bag* bag,
                              eve::container::Capacity capacity = eve::container::Capacity::unlimited());
    InventoryContainerAdapter(eve::container::ContainerId id, EquipmentSet* equipment);
 
    [[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 { return revision_; }
 
private:
    class PreparedState;
 
    [[nodiscard]] static eve::container::MembershipId    objectId(const ItemStack& stack);
    [[nodiscard]] static eve::container::ContainerObject describe(const ItemStack& stack,
                                                                  std::string      equipmentSlot = {});
    [[nodiscard]] const ItemStack* stackAt(eve::container::SlotIndex slot) const;
    [[nodiscard]] ItemStack*        stackAt(eve::container::SlotIndex slot);
    [[nodiscard]] std::string       slotName(eve::container::SlotIndex slot) const;
    [[nodiscard]] eve::Result<void> validateObject(const InventoryContainerObject& object) const;
 
    eve::container::ContainerDescriptor descriptor_;
    InventoryContainerKind              kind_;
    Bag*                                bag_       = nullptr;
    EquipmentSet*                       equipment_ = nullptr;
    eve::Revision                       revision_  = eve::Revision(0);
};
 
}  // namespace eve::inventory