scp_service.h

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// BSD 3-Clause License
// Copyright (c) 2021-2025, 🍀☀🌕🌥 🌊
// See the LICENSE file in the project root for full license information.
 
#ifndef PACS_SERVICES_SCP_SERVICE_HPP
#define PACS_SERVICES_SCP_SERVICE_HPP
 
#include "kcenon/pacs/network/association.h"
#include "kcenon/pacs/network/dimse/dimse_message.h"
#include "kcenon/pacs/di/ilogger.h"
 
#include <memory>
#include <string>
#include <string_view>
#include <vector>
 
namespace kcenon::pacs::services {
 
class scp_service {
public:
    // =========================================================================
    // Construction / Destruction
    // =========================================================================
 
    explicit scp_service(std::shared_ptr<di::ILogger> logger = nullptr)
        : logger_(logger ? std::move(logger) : di::null_logger()) {}
 
    virtual ~scp_service() = default;
 
    // Non-copyable but movable
    scp_service(const scp_service&) = delete;
    scp_service& operator=(const scp_service&) = delete;
    scp_service(scp_service&&) = default;
    scp_service& operator=(scp_service&&) = default;
 
    // =========================================================================
    // Logger Access
    // =========================================================================
 
    void set_logger(std::shared_ptr<di::ILogger> logger) {
        logger_ = logger ? std::move(logger) : di::null_logger();
    }
 
    [[nodiscard]] const std::shared_ptr<di::ILogger>& logger() const noexcept {
        return logger_;
    }
 
    // =========================================================================
    // Service Interface
    // =========================================================================
 
    [[nodiscard]] virtual std::vector<std::string> supported_sop_classes() const = 0;
 
    [[nodiscard]] virtual network::Result<std::monostate> handle_message(
        network::association& assoc,
        uint8_t context_id,
        const network::dimse::dimse_message& request) = 0;
 
    // =========================================================================
    // Service Information
    // =========================================================================
 
    [[nodiscard]] virtual std::string_view service_name() const noexcept = 0;
 
    [[nodiscard]] bool supports_sop_class(std::string_view sop_class_uid) const {
        const auto classes = supported_sop_classes();
        for (const auto& uid : classes) {
            if (uid == sop_class_uid) {
                return true;
            }
        }
        return false;
    }
 
protected:
    // =========================================================================
    // Protected Members
    // =========================================================================
 
    std::shared_ptr<di::ILogger> logger_;
};
 
using scp_service_ptr = std::shared_ptr<scp_service>;
 
}  // namespace kcenon::pacs::services
 
#endif  // PACS_SERVICES_SCP_SERVICE_HPP