AttributeResourceAccount.h

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#pragma once
#include "common/Export.h"
 
 
#include "attributes/AttributeSetResourceAccount.h"
 
#include <cstdint>
 
namespace eve::attributes {
 
enum class AttributeResourceKind : unsigned char {
    Mana,
    Stamina,
};
 
class EVENGINE_API_FOUNDATION AttributeResourceAccountAdapter final : public eve::resource::IResourceAccount {
public:
    AttributeResourceAccountAdapter(AttributeSetResourceAccount& account, AttributeResourceKind kind) noexcept;
 
    AttributeResourceAccountAdapter(const AttributeResourceAccountAdapter&)            = delete;
    AttributeResourceAccountAdapter& operator=(const AttributeResourceAccountAdapter&) = delete;
    AttributeResourceAccountAdapter(AttributeResourceAccountAdapter&&)                 = delete;
    AttributeResourceAccountAdapter& operator=(AttributeResourceAccountAdapter&&)      = delete;
    ~AttributeResourceAccountAdapter() override                                        = default;
 
    [[nodiscard]] AttributeResourceKind kind() const noexcept { return kind_; }
 
    [[nodiscard]] static eve::Result<eve::resource::CostSpec> makeCost(AttributeResourceKind kind, std::int64_t amount);
 
    [[nodiscard]] eve::Result<eve::resource::Affordability> canAfford(
        const eve::resource::CostSpec& cost) const override;
    [[nodiscard]] eve::Result<eve::resource::Reservation> reserve(const eve::resource::CostSpec& cost) override;
    [[nodiscard]] eve::Result<eve::resource::Receipt> debit(const eve::resource::CostSpec& cost) override;
    [[nodiscard]] eve::Result<eve::resource::Receipt> credit(const eve::resource::CostSpec& cost) override;
    [[nodiscard]] eve::Result<eve::resource::Receipt> commit(const eve::resource::Reservation& reservation) override;
    [[nodiscard]] eve::Result<void> rollback(const eve::resource::Reservation& reservation) override;
 
private:
    [[nodiscard]] static const char* resourceName(AttributeResourceKind kind) noexcept;
    [[nodiscard]] eve::Result<void> validateCost(const eve::resource::CostSpec& cost) const;
 
    AttributeSetResourceAccount& account_;
    AttributeResourceKind        kind_;
};
 
using ManaAccountAdapter = AttributeResourceAccountAdapter;
using StaminaAccountAdapter = AttributeResourceAccountAdapter;
 
}  // namespace eve::attributes