preset-settings.h

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#pragma once
 
#include <QString>
#include <QFile>
#include <QJsonObject>
#include <QJsonArray>
#include <QSettings>
#include <QJsonDocument>
 
// TODO (Redesign logic to PresetSettings -> Preset -> Param)
 
class PresetSettings {
public:
  struct Param {
  public:
    QString name;
    int power;
    int speed;
    int repeat;
    double step_height;
    double target_height;
    bool use_diode;
    bool use_autofocus;
 
    Param() :
         power(20),
         speed(20),
         repeat(1),
         step_height(0),
         target_height(0),
         use_diode(false),
         use_autofocus(false) {}
 
    static Param fromJson(const QJsonObject &obj);
 
    QJsonObject toJson() const;
  };
 
  struct Preset {
  public:
    QString name;
    QList<Param> params;
 
    static Preset fromJson(const QJsonObject &obj);
 
    QJsonObject toJson() const;
  };
 
  PresetSettings() {
    QSettings settings;
    QJsonObject obj = settings.value("preset/user").value<QJsonDocument>().object();
    if (obj["data"].isNull()) {
      QFile file(":/resources/parameters/default.json");
      file.open(QFile::ReadOnly);
      // TODO (Is it possible to remove QJsonDocument and use QJsonObject only?)
      auto preset = Preset::fromJson(QJsonDocument::fromJson(file.readAll()).object());
      preset.name = "FLUX beamo Preset";
      presets_ << preset;
    } else {
      loadJson(obj);
    }
  }
 
  void loadJson(const QJsonObject &obj) {
    QJsonArray data = obj["data"].toArray();
    presets_.clear();
    for (QJsonValue item : data) {
      presets_ << Preset::fromJson(item.toObject());
    }
  }
 
  QJsonObject toJson() const {
    QJsonArray data;
    for (auto &param : presets_) {
      data << param.toJson();
    }
    QJsonObject obj;
    obj["data"] = data;
    return obj;
  }
 
  const QList<Preset> &presets() {
    return presets_;
  }
 
  void save() {
    QSettings settings;
    settings.setValue("preset/user", QJsonDocument(toJson()));
  }
 
  QList<Preset> presets_;
};