ct_iod_validator.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_VALIDATION_CT_IOD_VALIDATOR_HPP
#define PACS_SERVICES_VALIDATION_CT_IOD_VALIDATOR_HPP
 
#include "kcenon/pacs/core/dicom_dataset.h"
#include "kcenon/pacs/core/dicom_tag.h"
#include "kcenon/pacs/services/validation/us_iod_validator.h"  // Reuse validation types
 
#include <string>
#include <vector>
 
namespace kcenon::pacs::services::validation {
 
// =============================================================================
// CT-Specific DICOM Tags (not in core tag constants)
// =============================================================================
 
namespace ct_tags {
 
inline constexpr core::dicom_tag kvp{0x0018, 0x0060};
 
inline constexpr core::dicom_tag slice_thickness{0x0018, 0x0050};
 
inline constexpr core::dicom_tag gantry_detector_tilt{0x0018, 0x1120};
 
inline constexpr core::dicom_tag table_height{0x0018, 0x1130};
 
inline constexpr core::dicom_tag rotation_direction{0x0018, 0x1140};
 
inline constexpr core::dicom_tag exposure_time{0x0018, 0x1150};
 
inline constexpr core::dicom_tag xray_tube_current{0x0018, 0x1151};
 
inline constexpr core::dicom_tag exposure{0x0018, 0x1152};
 
inline constexpr core::dicom_tag filter_type{0x0018, 0x1160};
 
inline constexpr core::dicom_tag generator_power{0x0018, 0x1170};
 
inline constexpr core::dicom_tag focal_spots{0x0018, 0x1190};
 
inline constexpr core::dicom_tag convolution_kernel{0x0018, 0x1210};
 
inline constexpr core::dicom_tag reconstruction_diameter{0x0018, 0x1100};
 
inline constexpr core::dicom_tag data_collection_diameter{0x0018, 0x0090};
 
inline constexpr core::dicom_tag patient_position{0x0018, 0x5100};
 
inline constexpr core::dicom_tag image_position_patient{0x0020, 0x0032};
 
inline constexpr core::dicom_tag image_orientation_patient{0x0020, 0x0037};
 
inline constexpr core::dicom_tag slice_location{0x0020, 0x1041};
 
}  // namespace ct_tags
 
// =============================================================================
// CT Validation Options
// =============================================================================
 
struct ct_validation_options {
    bool check_type1 = true;
 
    bool check_type2 = true;
 
    bool check_conditional = true;
 
    bool validate_pixel_data = true;
 
    bool validate_ct_params = true;
 
    bool strict_mode = false;
};
 
// =============================================================================
// CT IOD Validator
// =============================================================================
 
class ct_iod_validator {
public:
    ct_iod_validator() = default;
 
    explicit ct_iod_validator(const ct_validation_options& options);
 
    [[nodiscard]] validation_result validate(
        const core::dicom_dataset& dataset) const;
 
    [[nodiscard]] bool quick_check(
        const core::dicom_dataset& dataset) const;
 
    [[nodiscard]] const ct_validation_options& options() const noexcept;
 
    void set_options(const ct_validation_options& options);
 
private:
    // Module validation methods
    void validate_patient_module(
        const core::dicom_dataset& dataset,
        std::vector<validation_finding>& findings) const;
 
    void validate_general_study_module(
        const core::dicom_dataset& dataset,
        std::vector<validation_finding>& findings) const;
 
    void validate_general_series_module(
        const core::dicom_dataset& dataset,
        std::vector<validation_finding>& findings) const;
 
    void validate_frame_of_reference_module(
        const core::dicom_dataset& dataset,
        std::vector<validation_finding>& findings) const;
 
    void validate_general_equipment_module(
        const core::dicom_dataset& dataset,
        std::vector<validation_finding>& findings) const;
 
    void validate_ct_image_module(
        const core::dicom_dataset& dataset,
        std::vector<validation_finding>& findings) const;
 
    void validate_image_pixel_module(
        const core::dicom_dataset& dataset,
        std::vector<validation_finding>& findings) const;
 
    void validate_sop_common_module(
        const core::dicom_dataset& dataset,
        std::vector<validation_finding>& findings) const;
 
    // Attribute validation helpers
    void check_type1_attribute(
        const core::dicom_dataset& dataset,
        core::dicom_tag tag,
        std::string_view name,
        std::vector<validation_finding>& findings) const;
 
    void check_type2_attribute(
        const core::dicom_dataset& dataset,
        core::dicom_tag tag,
        std::string_view name,
        std::vector<validation_finding>& findings) const;
 
    void check_modality(
        const core::dicom_dataset& dataset,
        std::vector<validation_finding>& findings) const;
 
    void check_pixel_data_consistency(
        const core::dicom_dataset& dataset,
        std::vector<validation_finding>& findings) const;
 
    ct_validation_options options_;
};
 
// =============================================================================
// Convenience Functions
// =============================================================================
 
[[nodiscard]] validation_result validate_ct_iod(
    const core::dicom_dataset& dataset);
 
[[nodiscard]] bool is_valid_ct_dataset(const core::dicom_dataset& dataset);
 
}  // namespace kcenon::pacs::services::validation
 
#endif  // PACS_SERVICES_VALIDATION_CT_IOD_VALIDATOR_HPP