#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QJsonObject>
#include <memory>
#include <QNetworkReply>

QT_BEGIN_NAMESPACE
namespace Ui { class MainWindow; }
QT_END_NAMESPACE

class QTreeWidgetItem;
class QFile;
class QNetworkReply;
class QAuthenticator;

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    MainWindow(QWidget *parent = nullptr);
    ~MainWindow();

private slots:
    void on_selectProjectDirButton_clicked();
//    void on_reloadButton_clicked();
    void on_languageCombo_currentTextChanged(const QString &selectedLanguage);
    void on_reloadTranslationsButton_clicked();
    void on_reloadFilesButton_clicked();
    void on_nextUntranslatedButton_clicked();
    void on_treeWidget_itemSelectionChanged();
    void on_setTranslationButton_clicked();
    void on_setTranslationAndJumpNextButton_clicked();
    void on_setAndNextAndAutoTranslate_clicked();
    void on_translationEdit_returnPressed();
    void on_saveButton_clicked();
    void on_cleanupButton_clicked();
    void on_cleanupAndSaveButton_clicked();
    void onDeeplTranslationPossibilitiesLoaded(QNetworkReply *reply);
    void on_deeplTranslateFrom_currentTextChanged(const QString &sourceLanguage);
    void on_autoTranslateButton_clicked();
    void on_searchButton_clicked();
    void on_searchNextButton_clicked();
    void on_deeplApiKey_editingFinished();
    void on_copyButton_clicked();

private:
    struct TranslationItem {
        TranslationItem(int line_, QString character_, QString oldText_, QString newText_):
            line(line_),
            character(character_),
            oldText(oldText_),
            newText(newText_) {};
        int line;
        QString character;
        QString oldText;
        QString newText;
    };
    std::unique_ptr<QNetworkAccessManager> networkManager;
    Ui::MainWindow *ui;
    QJsonObject configuration;
    bool noConfigChange{false};
    std::map<QString, QString> fileContentsMap;
    std::map<QString, std::vector<QString> > translationsMap;
    QString searchQuery;
    void crawlProject();
    void populateTreeWidgetFromMap();
    void saveFiles(QStringList &failedFiles);
    bool createBackup(const QString &filePath, const QString &backupFileName);
    bool editAndSaveFile(QTreeWidgetItem *fileItem, const QString &backupFileName, const QString &fileName);
    bool saveToFile(const QString &backupFileName, const QStringList &lines);
    bool parseAndEditFile(QFile &backupFile, QTreeWidgetItem *fileItem, QStringList &lines, bool &changed);
    QString findNewText(QTreeWidgetItem *fileItem, const QString &lineNumber, const QString &originalText, const QString &speaker);
    void loadDeeplTranslationPossibilities();
    void renderDeeplSources();
    void translationRequestFinished(QNetworkReply *reply);
    void onDeeplTranslationAuthenticationError(QNetworkReply *reply, QAuthenticator *authenticator);
    void countAndShowUntranslated();
    void searchNext();
    QVector<TranslationItem> parseTextBlock(const QString &block);
    void setConfigValue(const QString &key, const QString &value);
};
#endif // MAINWINDOW_H