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#include "indexer/brands_holder.hpp"
#include "indexer/search_string_utils.hpp"
#include "platform/platform.hpp"
#include "coding/reader.hpp"
#include "coding/reader_streambuf.hpp"
#include "coding/string_utf8_multilang.hpp"
#include "base/logging.hpp"
#include <sstream>
#include <utility>
#include "defines.hpp"
using namespace std;
namespace
{
enum class State
{
ParseBrand,
ParseLanguages
};
} // namespace
namespace indexer
{
bool BrandsHolder::Brand::Name::operator==(BrandsHolder::Brand::Name const & rhs) const
{
return m_locale == rhs.m_locale && m_name == rhs.m_name;
}
bool BrandsHolder::Brand::Name::operator<(BrandsHolder::Brand::Name const & rhs) const
{
if (m_locale != rhs.m_locale)
return m_locale < rhs.m_locale;
return m_name < rhs.m_name;
}
BrandsHolder::BrandsHolder(unique_ptr<Reader> && reader)
{
ReaderStreamBuf buffer(move(reader));
istream s(&buffer);
LoadFromStream(s);
}
void BrandsHolder::ForEachNameByKey(std::string const & key,
std::function<void(Brand::Name const &)> const & toDo) const
{
auto const it = m_keyToName.find(key);
if (it == m_keyToName.end())
return;
for (auto const & name : it->second->m_synonyms)
toDo(name);
}
void BrandsHolder::ForEachNameByKeyAndLang(std::string const & key, std::string const & lang,
std::function<void(std::string const &)> const & toDo) const
{
int8_t const locale = StringUtf8Multilang::GetLangIndex(lang);
ForEachNameByKey(key, [&](Brand::Name const & name) {
if (name.m_locale == locale)
toDo(name.m_name);
});
}
void BrandsHolder::LoadFromStream(istream & s)
{
m_keys.clear();
m_keyToName.clear();
State state = State::ParseBrand;
string line;
Brand brand;
string key;
char const kKeyPrefix[] = "brand.";
size_t const kKeyPrefixLength = strlen(kKeyPrefix);
int lineNumber = 0;
while (s.good())
{
++lineNumber;
getline(s, line);
strings::Trim(line);
// Allow comments starting with '#' character.
if (!line.empty() && line[0] == '#')
continue;
strings::SimpleTokenizer iter(line, state == State::ParseBrand ? "|" : ":|");
if (state == State::ParseBrand)
{
if (!iter)
continue;
AddBrand(brand, key);
CHECK_GREATER((*iter).size(), kKeyPrefixLength, (lineNumber, *iter));
ASSERT_EQUAL((*iter).find(kKeyPrefix), 0, (lineNumber, *iter));
key = (*iter).substr(kKeyPrefixLength);
CHECK(!++iter, (lineNumber));
state = State::ParseLanguages;
}
else if (state == State::ParseLanguages)
{
if (!iter)
{
state = State::ParseBrand;
continue;
}
int8_t const langCode = StringUtf8Multilang::GetLangIndex(*iter);
CHECK_NOT_EQUAL(langCode, StringUtf8Multilang::kUnsupportedLanguageCode, ());
while (++iter)
{
Brand::Name name(*iter, langCode);
if (!name.m_name.empty())
brand.m_synonyms.push_back(name);
}
}
}
// Add last brand.
AddBrand(brand, key);
}
void BrandsHolder::AddBrand(Brand & brand, string const & key)
{
if (key.empty())
return;
CHECK(!brand.m_synonyms.empty(), ());
shared_ptr<Brand> p(new Brand());
p->Swap(brand);
m_keyToName.emplace(key, p);
CHECK(m_keys.insert(key).second, ("Key duplicate", key));
}
string DebugPrint(BrandsHolder::Brand::Name const & name)
{
std::ostringstream out;
out << "BrandName[" << StringUtf8Multilang::GetLangByCode(name.m_locale) << ", " << name.m_name
<< "]";
return out.str();
}
BrandsHolder const & GetDefaultBrands()
{
static BrandsHolder const instance(GetPlatform().GetReader(SEARCH_BRAND_CATEGORIES_FILE_NAME));
return instance;
}
} // namespace indexer
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