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#include "ugc/binary/serdes.hpp"
#include <set>
using namespace std;
namespace ugc
{
namespace binary
{
namespace
{
class BaseCollector
{
public:
virtual ~BaseCollector() = default;
virtual void VisitRating(float const f, char const * /* name */ = nullptr) {}
virtual void operator()(string const & /* s */, char const * /* name */ = nullptr) {}
virtual void operator()(Sentiment const /* sentiment */, char const * /* name */ = nullptr) {}
virtual void operator()(Time const /* time */, char const * /* name */ = nullptr) {}
virtual void operator()(TranslationKey const & tk, char const * /* name */ = nullptr) {}
virtual void operator()(Text const & text, char const * /* name */ = nullptr) {}
template <typename T>
void operator()(vector<T> const & vs, char const * /* name */ = nullptr)
{
for (auto const & v : vs)
(*this)(v);
}
template <typename R>
typename enable_if<is_fundamental<R>::value>::type operator()(R const & r,
char const * /* name */ = nullptr)
{
}
template <typename R>
typename enable_if<!is_fundamental<R>::value>::type operator()(R const & r,
char const * /* name */ = nullptr)
{
r.Visit(*this);
}
};
// Collects all translation keys from UGC.
class TranslationKeyCollector : public BaseCollector
{
public:
using BaseCollector::operator();
explicit TranslationKeyCollector(set<TranslationKey> & keys) : m_keys(keys) {}
void operator()(TranslationKey const & tk, char const * /* name */ = nullptr) override
{
m_keys.insert(tk.m_key);
}
private:
set<TranslationKey> & m_keys;
};
// Collects all texts from UGC.
class TextCollector : public BaseCollector
{
public:
using BaseCollector::operator();
TextCollector(vector<Text> & texts) : m_texts(texts) {}
void operator()(Text const & text, char const * /* name */ = nullptr) override
{
m_texts.push_back(text);
}
private:
vector<Text> & m_texts;
};
} // namespace
void UGCSeriaizer::CollectTranslationKeys()
{
ASSERT(m_keys.empty(), ());
set<TranslationKey> keys;
TranslationKeyCollector collector(keys);
for (auto const & p : m_ugcs)
collector(p.m_ugc);
m_keys.assign(keys.begin(), keys.end());
}
void UGCSeriaizer::CollectTexts()
{
ASSERT(m_texts.empty(), ());
for (auto const & p : m_ugcs)
{
m_texts.emplace_back();
TextCollector collector(m_texts.back());
collector(p.m_ugc);
}
}
} // namespace binary
} // namespace ugc
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