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#pragma once
#include "std/string.hpp"
#include "std/map.hpp"
namespace Settings
{
template <class T> bool FromString(string const & str, T & outValue);
template <class T> string ToString(T const & value);
class StringStorage
{
typedef map<string, string> ContainerT;
ContainerT m_values;
StringStorage();
void Save() const;
public:
static StringStorage & Instance();
bool GetValue(string const & key, string & outValue);
void SetValue(string const & key, string const & value);
};
/// Retrieve setting
/// @return false if setting is absent
template <class ValueT> bool Get(string const & key, ValueT & outValue)
{
string strVal;
return StringStorage::Instance().GetValue(key, strVal)
&& FromString(strVal, outValue);
}
/// Automatically saves setting to external file
template <class ValueT> void Set(string const & key, ValueT const & value)
{
StringStorage::Instance().SetValue(key, ToString(value));
}
enum Units { Metric = 0, Yard, Foot };
/// Use this function for running some stuff once according to date.
/// @param[in] date Current date in format yymmdd.
bool IsFirstLaunchForDate(int date);
/// @Returns true when user launched app first time
/// Use to track new installs
/// @warning Can be used only before IsFirstLaunchForDate(int) call
bool IsFirstLaunch();
}
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