1 files changed, 28 insertions, 0 deletions
diff --git a/src/geo_json.hh b/src/geo_json.hh
new file mode 100644
index 0000000..d5f4030
--- /dev/null
+++ b/src/geo_json.hh
@@ -0,0 +1,28 @@
+#ifndef GEO_JSON_HH
+#define GEO_JSON_HH
+
+#include <filesystem>
+#include <memory>
+#include <optional>
+#include <string>
+#include <string_view>
+
+class Logger;
+
+class GeoJson {
+public:
+  virtual ~GeoJson() = default;
+
+  static std::unique_ptr<GeoJson> create(std::shared_ptr<Logger> logger,
+                                         std::filesystem::path db);
+
+  virtual std::optional<std::string> get_data(double lat, double lng,
+                                              std::string_view data) const = 0;
+
+protected:
+  GeoJson() = default;
+  GeoJson(GeoJson const&) = delete;
+  GeoJson& operator=(GeoJson const&) = delete;
+};
+
+#endif  // GEO_JSON_HH