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