Initial loading of JSON-based settings

scwx-qt/source/scwx/qt/settings/general_settings.cpp

@@ -0,0 +1,98 @@
+#include <scwx/qt/settings/general_settings.hpp>
+#include <scwx/qt/util/json.hpp>
+
+#include <boost/log/trivial.hpp>
+
+namespace scwx
+{
+namespace qt
+{
+namespace settings
+{
+
+static const std::string logPrefix_ = "[scwx::qt::settings::general_settings] ";
+
+static const std::string& DEFAULT_DEFAULT_RADAR_SITE = "KLSX";
+
+class GeneralSettingsImpl
+{
+public:
+   explicit GeneralSettingsImpl() {}
+
+   ~GeneralSettingsImpl() {}
+
+   void SetDefaults() { defaultRadarSite_ = DEFAULT_DEFAULT_RADAR_SITE; }
+
+   std::string defaultRadarSite_;
+};
+
+GeneralSettings::GeneralSettings() : p(std::make_unique<GeneralSettingsImpl>())
+{
+}
+GeneralSettings::~GeneralSettings() = default;
+
+GeneralSettings::GeneralSettings(GeneralSettings&&) noexcept = default;
+GeneralSettings&
+GeneralSettings::operator=(GeneralSettings&&) noexcept = default;
+
+const std::string& GeneralSettings::default_radar_site()
+{
+   return p->defaultRadarSite_;
+}
+
+boost::json::value GeneralSettings::ToJson()
+{
+   boost::json::object json;
+
+   json["default_radar_site"] = p->defaultRadarSite_;
+
+   return json;
+}
+
+std::shared_ptr<GeneralSettings> GeneralSettings::Create()
+{
+   std::shared_ptr<GeneralSettings> generalSettings =
+      std::make_shared<GeneralSettings>();
+
+   generalSettings->p->SetDefaults();
+
+   return generalSettings;
+}
+
+std::shared_ptr<GeneralSettings>
+GeneralSettings::Load(const boost::json::value* json, bool& jsonDirty)
+{
+   std::shared_ptr<GeneralSettings> generalSettings =
+      std::make_shared<GeneralSettings>();
+
+   if (json != nullptr && json->is_object())
+   {
+      jsonDirty |=
+         !util::json::FromJsonString(json->as_object(),
+                                     "default_radar_site",
+                                     generalSettings->p->defaultRadarSite_,
+                                     DEFAULT_DEFAULT_RADAR_SITE);
+   }
+   else
+   {
+      if (json == nullptr)
+      {
+         BOOST_LOG_TRIVIAL(warning)
+            << logPrefix_ << "Key is not present, resetting to defaults";
+      }
+      else if (!json->is_object())
+      {
+         BOOST_LOG_TRIVIAL(warning)
+            << logPrefix_ << "Invalid json, resetting to defaults";
+      }
+
+      generalSettings->p->SetDefaults();
+      jsonDirty = true;
+   }
+
+   return generalSettings;
+}
+
+} // namespace settings
+} // namespace qt
+} // namespace scwx

scwx-qt/source/scwx/qt/settings/general_settings.hpp

@@ -0,0 +1,43 @@
+#pragma once
+
+#include <memory>
+#include <string>
+
+#include <boost/json.hpp>
+
+namespace scwx
+{
+namespace qt
+{
+namespace settings
+{
+
+class GeneralSettingsImpl;
+
+class GeneralSettings
+{
+public:
+   explicit GeneralSettings();
+   ~GeneralSettings();
+
+   GeneralSettings(const GeneralSettings&) = delete;
+   GeneralSettings& operator=(const GeneralSettings&) = delete;
+
+   GeneralSettings(GeneralSettings&&) noexcept;
+   GeneralSettings& operator=(GeneralSettings&&) noexcept;
+
+   const std::string& default_radar_site();
+
+   boost::json::value ToJson();
+
+   static std::shared_ptr<GeneralSettings> Create();
+   static std::shared_ptr<GeneralSettings> Load(const boost::json::value* json,
+                                                bool& jsonDirty);
+
+private:
+   std::unique_ptr<GeneralSettingsImpl> p;
+};
+
+} // namespace settings
+} // namespace qt
+} // namespace scwx