From 3701f20d4ed312040f1072ec0d9dbd8d54291e85 Mon Sep 17 00:00:00 2001
From: Daria Volvenkova <d.volvenkova@corp.mail.ru>
Date: Fri, 21 Dec 2018 17:49:30 +0300
Subject: [PATCH] Represent feature id as string by its params.

---
 map/framework_light.cpp | 43 +++++++++++++++++++++++++++++++++++++++++
 map/framework_light.hpp |  6 ++++++
 2 files changed, 49 insertions(+)

diff --git a/map/framework_light.cpp b/map/framework_light.cpp
index c4f4455508..5b8b4e8abb 100644
--- a/map/framework_light.cpp
+++ b/map/framework_light.cpp
@@ -1,5 +1,15 @@
 #include "map/framework_light.hpp"
 
+#include "base/stl_helpers.hpp"
+#include "base/string_utils.hpp"
+
+#include <sstream>
+
+namespace
+{
+char const * kDelimiter = "|";
+}  // namespace
+
 namespace lightweight
 {
 Framework::Framework(RequestTypeMask request) : m_request(request)
@@ -109,4 +119,37 @@ boost::optional<notifications::NotificationCandidate> Framework::GetNotification
 {
   return m_notificationManager->GetNotification();
 }
+
+std::string FeatureParamsToString(int64_t mwmVersion, std::string const & countryId, uint32_t featureIndex)
+{
+  std::ostringstream stream;
+  stream << mwmVersion << kDelimiter << countryId << kDelimiter << featureIndex;
+  return stream.str();
+}
+
+bool FeatureParamsFromString(std::string const & str, int64_t & mwmVersion, std::string & countryId,
+                             uint32_t & featureIndex)
+{
+  std::vector<std::string> tokens;
+  strings::Tokenize(str, kDelimiter, base::MakeBackInsertFunctor(tokens));
+  if (tokens.size() != 3)
+    return false;
+
+  int64_t tmpMwmVersion;
+  if (!strings::to_int64(tokens[0], tmpMwmVersion))
+    return false;
+
+  unsigned int tmpFeatureIndex;
+  if (!strings::to_uint(tokens[2], tmpFeatureIndex))
+    return false;
+
+  if (tokens[1].empty())
+    return false;
+
+  mwmVersion = tmpMwmVersion;
+  countryId = tokens[1];
+  featureIndex = tmpFeatureIndex;
+
+  return true;
+}
 }  // namespace lightweight
diff --git a/map/framework_light.hpp b/map/framework_light.hpp
index f46bff0acf..61e9203074 100644
--- a/map/framework_light.hpp
+++ b/map/framework_light.hpp
@@ -15,6 +15,7 @@
 
 #include <cstdint>
 #include <memory>
+#include <string>
 #include <vector>
 
 #include <boost/optional.hpp>
@@ -73,4 +74,9 @@ private:
   std::unique_ptr<Statistics> m_localAdsStatistics;
   std::unique_ptr<lightweight::NotificationManager> m_notificationManager;
 };
+
+std::string FeatureParamsToString(int64_t mwmVersion, std::string const & countryId, uint32_t featureIndex);
+
+bool FeatureParamsFromString(std::string const & str, int64_t & mwmVersion, std::string & countryId,
+                             uint32_t & featureIndex);
 }  // namespace lightweight