New cpp folder structure

Signed-off-by: Alexander Borsuk <me@alex.bio>

libs/indexer/map_style_reader.cpp

@@ -0,0 +1,148 @@
+#include "map_style_reader.hpp"
+
+#include "platform/platform.hpp"
+
+#include "base/file_name_utils.hpp"
+#include "base/logging.hpp"
+
+namespace
+{
+std::string const kSuffixDark = "dark";
+std::string const kSuffixLight = "light";
+std::string const kSuffixDefaultDark = "_default_dark";
+std::string const kSuffixDefaultLight = "_default_light";
+std::string const kSuffixVehicleDark = "_vehicle_dark";
+std::string const kSuffixVehicleLight = "_vehicle_light";
+std::string const kSuffixOutdoorsLight = "_outdoors_light";
+std::string const kSuffixOutdoorsDark = "_outdoors_dark";
+
+std::string const kStylesOverrideDir = "styles";
+
+#ifdef BUILD_DESIGNER
+std::string const kSuffixDesignTool = "_design";
+#endif // BUILD_DESIGNER
+
+std::string GetStyleRulesSuffix(MapStyle mapStyle)
+{
+#ifdef BUILD_DESIGNER
+  return kSuffixDesignTool;
+#else
+  switch (mapStyle)
+  {
+  case MapStyleDefaultDark:
+    return kSuffixDefaultDark;
+  case MapStyleDefaultLight:
+    return kSuffixDefaultLight;
+  case MapStyleVehicleDark:
+    return kSuffixVehicleDark;
+  case MapStyleVehicleLight:
+    return kSuffixVehicleLight;
+  case MapStyleOutdoorsLight:
+    return kSuffixOutdoorsLight;
+  case MapStyleOutdoorsDark:
+    return kSuffixOutdoorsDark;
+  case MapStyleMerged:
+    return {};
+
+  case MapStyleCount:
+    break;
+  }
+  LOG(LWARNING, ("Unknown map style", mapStyle));
+  return kSuffixDefaultLight;
+#endif // BUILD_DESIGNER
+}
+
+std::string GetStyleResourcesSuffix(MapStyle mapStyle)
+{
+#ifdef BUILD_DESIGNER
+  return kSuffixDesignTool;
+#else
+  // We use the same resources for all light/day and dark/night styles
+  // to avoid textures duplication and package size increasing.
+  switch (mapStyle)
+  {
+  case MapStyleDefaultDark:
+  case MapStyleVehicleDark:
+  case MapStyleOutdoorsDark:
+    return kSuffixDark;
+  case MapStyleDefaultLight:
+  case MapStyleVehicleLight:
+  case MapStyleOutdoorsLight:
+    return kSuffixLight;
+  case MapStyleMerged:
+    return {};
+
+  case MapStyleCount:
+    break;
+  }
+  LOG(LWARNING, ("Unknown map style", mapStyle));
+  return kSuffixLight;
+#endif // BUILD_DESIGNER
+}
+}  // namespace
+
+StyleReader::StyleReader()
+  : m_mapStyle(kDefaultMapStyle)
+{}
+
+void StyleReader::SetCurrentStyle(MapStyle mapStyle)
+{
+  m_mapStyle = mapStyle;
+}
+
+MapStyle StyleReader::GetCurrentStyle() const
+{
+  return m_mapStyle;
+}
+
+bool StyleReader::IsCarNavigationStyle() const
+{
+  return m_mapStyle == MapStyle::MapStyleVehicleLight ||
+         m_mapStyle == MapStyle::MapStyleVehicleDark;
+}
+
+ReaderPtr<Reader> StyleReader::GetDrawingRulesReader() const
+{
+  std::string rulesFile =
+      std::string("drules_proto") + GetStyleRulesSuffix(GetCurrentStyle()) + ".bin";
+
+  auto overriddenRulesFile =
+      base::JoinPath(GetPlatform().WritableDir(), kStylesOverrideDir, rulesFile);
+  if (Platform::IsFileExistsByFullPath(overriddenRulesFile))
+    rulesFile = overriddenRulesFile;
+
+#ifdef BUILD_DESIGNER
+  // For Designer tool we have to look first into the resource folder.
+  return GetPlatform().GetReader(rulesFile, "rwf");
+#else
+  return GetPlatform().GetReader(rulesFile);
+#endif
+}
+
+ReaderPtr<Reader> StyleReader::GetResourceReader(std::string const & file,
+                                                 std::string_view density) const
+{
+  std::string resFile = base::JoinPath("symbols", std::string{density}, GetStyleResourcesSuffix(GetCurrentStyle()), file);
+
+  auto overriddenResFile = base::JoinPath(GetPlatform().WritableDir(), kStylesOverrideDir, resFile);
+  if (GetPlatform().IsFileExistsByFullPath(overriddenResFile))
+    resFile = overriddenResFile;
+
+#ifdef BUILD_DESIGNER
+  // For Designer tool we have to look first into the resource folder.
+  return GetPlatform().GetReader(resFile, "rwf");
+#else
+  return GetPlatform().GetReader(resFile);
+#endif
+}
+
+ReaderPtr<Reader> StyleReader::GetDefaultResourceReader(std::string const & file) const
+{
+  return GetPlatform().GetReader(base::JoinPath("symbols/default", file));
+}
+
+StyleReader & GetStyleReader()
+{
+  static StyleReader instance;
+  return instance;
+}