Textractor_test/extensions/translatewrapper.cpp

130 lines
4.2 KiB
C++

#include "qtcommon.h"
#include "extension.h"
#include "blockmarkup.h"
#include "network.h"
#include <map>
#include <fstream>
#include <QComboBox>
#include <QTimer>
extern const char* NATIVE_LANGUAGE;
extern const char* TRANSLATE_TO;
extern const wchar_t* TOO_MANY_TRANS_REQUESTS;
extern const char* TRANSLATION_PROVIDER;
extern QStringList languages;
std::pair<bool, std::wstring> Translate(const std::wstring& text);
const char* LANGUAGE = u8"Language";
const std::string TRANSLATION_CACHE_FILE = FormatString("%s Cache.txt", TRANSLATION_PROVIDER);
QFormLayout* display;
QSettings* settings;
Synchronized<std::wstring> translateTo = L"en";
Synchronized<std::map<std::wstring, std::wstring>> translationCache;
int savedSize;
void SaveCache()
{
std::wstring allTranslations(L"\xfeff");
for (const auto& [sentence, translation] : translationCache.Acquire().contents)
allTranslations.append(L"|SENTENCE|").append(sentence).append(L"|TRANSLATION|").append(translation).append(L"|END|\r\n");
std::ofstream(TRANSLATION_CACHE_FILE, std::ios::binary | std::ios::trunc).write((const char*)allTranslations.c_str(), allTranslations.size() * sizeof(wchar_t));
savedSize = translationCache->size();
}
class Window : public QDialog
{
public:
Window() :
QDialog(nullptr, Qt::WindowMinMaxButtonsHint)
{
display = &layout;
::settings = &settings;
languageBox.addItems(languages);
settings.beginGroup(TRANSLATION_PROVIDER);
int language = -1;
if (settings.contains(LANGUAGE)) language = languageBox.findText(settings.value(LANGUAGE).toString(), Qt::MatchEndsWith);
if (language < 0) language = languageBox.findText(NATIVE_LANGUAGE, Qt::MatchStartsWith);
if (language < 0) language = languageBox.findText("English", Qt::MatchStartsWith);
languageBox.setCurrentIndex(language);
saveLanguage(languageBox.currentText());
connect(&languageBox, &QComboBox::currentTextChanged, this, &Window::saveLanguage);
layout.addRow(TRANSLATE_TO, &languageBox);
setWindowTitle(TRANSLATION_PROVIDER);
QMetaObject::invokeMethod(this, &QWidget::show, Qt::QueuedConnection);
std::ifstream stream(TRANSLATION_CACHE_FILE, std::ios::binary);
BlockMarkupIterator savedTranslations(stream, Array<std::wstring_view>{ L"|SENTENCE|", L"|TRANSLATION|" });
auto translationCache = ::translationCache.Acquire();
while (auto read = savedTranslations.Next())
{
auto& [sentence, translation] = read.value();
translationCache->try_emplace(std::move(sentence), std::move(translation));
}
savedSize = translationCache->size();
}
~Window()
{
SaveCache();
}
private:
void saveLanguage(QString language)
{
settings.setValue(LANGUAGE, S(translateTo->assign(S(language.split(": ")[1]))));
}
QFormLayout layout{ this };
QComboBox languageBox{ this };
QSettings settings{ openSettings(this) };
} window;
bool ProcessSentence(std::wstring& sentence, SentenceInfo sentenceInfo)
{
if (sentenceInfo["text number"] == 0) return false;
static class
{
public:
bool Request()
{
auto tokens = this->tokens.Acquire();
tokens->push_back(GetTickCount());
if (tokens->size() > tokenCount * 5) tokens->erase(tokens->begin(), tokens->begin() + tokenCount * 3);
tokens->erase(std::remove_if(tokens->begin(), tokens->end(), [this](DWORD token) { return GetTickCount() - token > delay; }), tokens->end());
return tokens->size() < tokenCount;
}
private:
const int tokenCount = 30, delay = 60 * 1000;
Synchronized<std::vector<DWORD>> tokens;
} rateLimiter;
bool cache = false;
std::wstring translation;
{
auto translationCache = ::translationCache.Acquire();
auto translationLocation = translationCache->find(sentence);
if (translationLocation != translationCache->end()) translation = translationLocation->second;
else if (!(rateLimiter.Request() || sentenceInfo["current select"])) translation = TOO_MANY_TRANS_REQUESTS;
else std::tie(cache, translation) = Translate(sentence);
if (cache && sentenceInfo["current select"]) translationCache->try_emplace(translationLocation, sentence, translation);
}
if (cache && translationCache->size() > savedSize + 50) SaveCache();
Unescape(translation);
sentence += L"\n" + translation;
return true;
}
TEST(
assert(Translate(L"こんにちは").second.find(L"ello") != std::wstring::npos)
);