importmapping.h

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#ifndef OPENSWMMVIS_UI_DIALOGS_IMPORT_IMPORTMAPPING_H
#define OPENSWMMVIS_UI_DIALOGS_IMPORT_IMPORTMAPPING_H
 
#include "ui/dialogs/import/importtargetregistry.h"
 
#include <QJsonObject>
#include <QString>
#include <QVariant>
#include <QVector>
 
#include <optional>
 
namespace openswmmvis::import {
 
struct AttributeBinding {
    QString  targetKey;     
    QString  sourceField;   
    QVariant defaultValue;  
 
    [[nodiscard]] bool isBound() const
    { return !sourceField.isEmpty() || defaultValue.isValid(); }
};
 
struct ImportMapping {
    TargetKind                kind = TargetKind::Junction;
    QVector<AttributeBinding> bindings;
 
    // ---- link endpoint resolution (priority order: fields → snap →
    //      auto-create; see the planner) --------------------------------
    bool    endpointsFromFields   = false;
    bool    endpointsSnap         = true;
    double  snapToleranceMapUnits = 1.0;   
    bool    autoCreateJunctions   = false;
    QString autoNodePrefix        = QStringLiteral("J_");
 
    // ---- conflict policy against existing objects ---------------------
    enum class Conflict { Skip = 0, Update = 1 };
    Conflict conflict         = Conflict::Skip;
    bool     updateAttributes = true;   
    bool     updateGeometry   = false;  
 
    // ---- source-side filter -------------------------------------------
    bool selectedFeaturesOnly = false;
 
    [[nodiscard]] const AttributeBinding *binding(const QString &targetKey) const;
    AttributeBinding &ensureBinding(const QString &targetKey);
 
    [[nodiscard]] QJsonObject toJson() const;
 
    [[nodiscard]] static std::optional<ImportMapping>
        fromJson(const QJsonObject &j, QString *errorOut = nullptr);
};
 
} // namespace openswmmvis::import
 
#endif // OPENSWMMVIS_UI_DIALOGS_IMPORT_IMPORTMAPPING_H