co-maps/libs/platform/settings.hpp

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#pragma once
#include "platform/string_storage_base.hpp"
#include "base/macros.hpp"
#include <string>
namespace settings
{
/// Metric or Imperial.
extern std::string_view kMeasurementUnits;
extern std::string_view kDeveloperMode;
extern std::string_view kMapLanguageCode;
// The following two settings are configured externally at the metaserver.
extern std::string_view kDonateUrl;
extern std::string_view kNY;
template <class T>
bool FromString(std::string const & str, T & outValue);
template <class T>
std::string ToString(T const & value);
class StringStorage : public platform::StringStorageBase
{
public:
static StringStorage & Instance();
private:
StringStorage();
};
/// Retrieve setting
/// @return false if setting is absent
template <class Value>
[[nodiscard]] bool Get(std::string_view key, Value & outValue)
{
std::string strVal;
return StringStorage::Instance().GetValue(key, strVal) && FromString(strVal, outValue);
}
template <class Value>
void TryGet(std::string_view key, Value & outValue)
{
bool unused = Get(key, outValue);
UNUSED_VALUE(unused);
}
/// Automatically saves setting to external file
template <class Value>
void Set(std::string_view key, Value const & value)
{
StringStorage::Instance().SetValue(key, ToString(value));
}
/// Automatically saves settings to external file
inline void Update(std::map<std::string, std::string> const & settings)
{
StringStorage::Instance().Update(settings);
}
inline void Delete(std::string_view key)
{
StringStorage::Instance().DeleteKeyAndValue(key);
}
inline void Clear()
{
StringStorage::Instance().Clear();
}
class UsageStats
{
static uint64_t TimeSinceEpoch();
uint64_t m_enterForegroundTime = 0;
uint64_t m_totalForegroundTime = 0;
uint64_t m_sessionsCount = 0;
std::string_view m_firstLaunch, m_lastBackground, m_totalForeground, m_sessions;
StringStorage & m_ss;
public:
UsageStats();
void EnterForeground();
void EnterBackground();
bool IsLoyalUser() const;
};
} // namespace settings