PNP_PIbd-31_Rodionov_I_A_CourseWork_ServerPart/service/serviceloaddb.h

#ifndef SERVICELOADDB_H
#define SERVICELOADDB_H

#include <QObject>
#include <QSql>
#include <QSqlDatabase>
#include <QSqlRecord>
#include <QSqlQuery>
#include <QSqlError>
#include <QString>
#include <QDebug>
#include <QStringList>
#include <QMap>
#include <QList>
#include <QFile>

#include "models/types.h" // IWYU pragma: keep

class ServiceLoadDB : public QObject
{
    Q_OBJECT

public:
    explicit ServiceLoadDB(QObject *parent = nullptr);
    void start();
    QMap<int, Location> loadLocations();
    QMap<int, Department> loadDepartments();
    QMap<int, Manufacturer> loadManufacturers();
    QMap<int, DeviceType> loadDeviceTypes();
    QMap<int, DeviceModel> loadDeviceModels();
    QMap<int, Device> loadDevices();
    bool updateDevice(const Device &device);

private:
    QList<DeviceStructureElement> readStructureElements(int modelId);

    template <typename T>
    T getValueOrDefault(const QSqlQuery &query, const QSqlRecord &record, const QString &fieldName, const T &defaultValue);

private:
    QSqlDatabase _db;
    QString _dbInput;
    QSqlQuery _query;

    QMap<int, DeviceModel> _mapDeviceModels;
};

#endif // SERVICELOADDB_H