[locale] Add GeoIP settings to Config

- this doesn't do the lookup **yet**
- while here, refactor setConfigurationMap so it reads like a story,
  with chunks bitten out into a handful of static inline void methods.

src/modules/locale/Config.cpp

@@ -327,43 +327,50 @@ Config::currentLCStatus() const
         .arg( localeLabel( m_selectedLocaleConfiguration.lc_numeric ) );
 }
 
-
-void
-Config::setConfigurationMap( const QVariantMap& configurationMap )
+static inline void
+getLocaleGenLines( const QVariantMap& configurationMap, QStringList& localeGenLines )
 {
     QString localeGenPath = CalamaresUtils::getString( configurationMap, "localeGenPath" );
     if ( localeGenPath.isEmpty() )
     {
         localeGenPath = QStringLiteral( "/etc/locale.gen" );
     }
-    m_localeGenLines = loadLocales( localeGenPath );
+    localeGenLines = loadLocales( localeGenPath );
+}
 
-    m_adjustLiveTimezone
+static inline void
+getAdjustLiveTimezone( const QVariantMap& configurationMap, bool& adjustLiveTimezone )
+{
+    adjustLiveTimezone
         = CalamaresUtils::getBool( configurationMap, "adjustLiveTimezone", Calamares::Settings::instance()->doChroot() );
 #ifdef DEBUG_TIMEZONES
     if ( m_adjustLiveTimezone )
     {
         cWarning() << "Turning off live-timezone adjustments because debugging is on.";
-        m_adjustLiveTimezone = false;
+        adjustLiveTimezone = false;
     }
 #endif
 #ifdef __FreeBSD__
-    if ( m_adjustLiveTimezone )
+    if ( adjustLiveTimezone )
     {
         cWarning() << "Turning off live-timezone adjustments on FreeBSD.";
-        m_adjustLiveTimezone = false;
+        adjustLiveTimezone = false;
     }
 #endif
+}
 
+static inline void
+getStartingTimezone( const QVariantMap& configurationMap, CalamaresUtils::GeoIP::RegionZonePair& startingTimezone )
+{
     QString region = CalamaresUtils::getString( configurationMap, "region" );
     QString zone = CalamaresUtils::getString( configurationMap, "zone" );
     if ( !region.isEmpty() && !zone.isEmpty() )
     {
-        m_startingTimezone = CalamaresUtils::GeoIP::RegionZonePair( region, zone );
+        startingTimezone = CalamaresUtils::GeoIP::RegionZonePair( region, zone );
     }
     else
     {
-        m_startingTimezone
+        startingTimezone
             = CalamaresUtils::GeoIP::RegionZonePair( QStringLiteral( "America" ), QStringLiteral( "New_York" ) );
     }
 
@@ -372,11 +379,40 @@ Config::setConfigurationMap( const QVariantMap& configurationMap )
         auto systemtz = CalamaresUtils::GeoIP::splitTZString( QTimeZone::systemTimeZoneId() );
         if ( systemtz.isValid() )
         {
-            m_startingTimezone = systemtz;
+            cDebug() << "Overriding configured timezone" << startingTimezone << "with system timezone" << systemtz;
+            startingTimezone = systemtz;
         }
     }
 }
 
+static inline void
+getGeoIP( const QVariantMap& configurationMap, std::unique_ptr< CalamaresUtils::GeoIP::Handler >& geoip )
+{
+    bool ok = false;
+    QVariantMap map = CalamaresUtils::getSubMap( configurationMap, "geoip", ok );
+    if ( ok )
+    {
+        QString url = CalamaresUtils::getString( map, "url" );
+        QString style = CalamaresUtils::getString( map, "style" );
+        QString selector = CalamaresUtils::getString( map, "selector" );
+
+        geoip = std::make_unique< CalamaresUtils::GeoIP::Handler >( style, url, selector );
+        if ( !geoip->isValid() )
+        {
+            cWarning() << "GeoIP Style" << style << "is not recognized.";
+        }
+    }
+}
+
+void
+Config::setConfigurationMap( const QVariantMap& configurationMap )
+{
+    getLocaleGenLines( configurationMap, m_localeGenLines );
+    getAdjustLiveTimezone( configurationMap, m_adjustLiveTimezone );
+    getStartingTimezone( configurationMap, m_startingTimezone );
+    getGeoIP( configurationMap, m_geoip );
+}
+
 Calamares::JobList
 Config::createJobs()
 {

src/modules/locale/Config.h

@@ -24,6 +24,7 @@
 #include "LocaleConfiguration.h"
 
 #include "Job.h"
+#include "geoip/Handler.h"
 #include "geoip/Interface.h"
 #include "locale/TimeZone.h"
 
@@ -136,8 +137,18 @@ private:
     bool m_adjustLiveTimezone;
 
     /** @brief The initial timezone (region, zone) specified in the config.
+     *
+     * This may be overridden by setting *useSystemTimezone* or by
+     * GeoIP settings.
      */
     CalamaresUtils::GeoIP::RegionZonePair m_startingTimezone;
+
+    /** @brief Handler for GeoIP lookup (if configured)
+     *
+     * The GeoIP lookup needs to be started at some suitable time,
+     * by explicitly calling *TODO*
+     */
+    std::unique_ptr< CalamaresUtils::GeoIP::Handler > m_geoip;
 };