#ifndef EXPORTER_H
#define EXPORTER_H

#include <QObject>
#include <QStringList>

#include "exportdata.h"

namespace vnotex
{
    class Notebook;
    class Node;
    class Buffer;
    class File;
    class WebViewExporter;

    class Exporter : public QObject
    {
        Q_OBJECT
    public:
        // We need the QWidget as parent.
        explicit Exporter(QWidget *p_parent);

        // Return exported output file.
        QString doExport(const ExportOption &p_option, Buffer *p_buffer);

        // Return exported output file.
        QString doExport(const ExportOption &p_option, Node *p_note);

        // Return exported output files.
        QStringList doExportFolder(const ExportOption &p_option, Node *p_folder);

        QStringList doExport(const ExportOption &p_option, Notebook *p_notebook);

        void stop();

    signals:
        void progressUpdated(int p_val, int p_maximum);

        void logRequested(const QString &p_log);

    private:
        QStringList doExport(const ExportOption &p_option, const QString &p_outputDir, Node *p_folder);

        QString doExport(const ExportOption &p_option, const QString &p_outputDir, const File *p_file);

        QString doExportMarkdown(const ExportOption &p_option, const QString &p_outputDir, const File *p_file);

        QString doExportHtml(const ExportOption &p_option, const QString &p_outputDir, const File *p_file);

        QString doExportPdf(const ExportOption &p_option, const QString &p_outputDir, const File *p_file);

        QString doExportCustom(const ExportOption &p_option, const QString &p_outputDir, const File *p_file);

        bool doExportCustom(const ExportOption &p_option,
                            const QStringList &p_files,
                            const QStringList &p_resourcePaths,
                            const QString &p_filePath);

        // Export @p_notebook or @p_folder. @p_folder will be considered only when @p_notebook is null.
        QString doExportPdfAllInOne(const ExportOption &p_option, Notebook *p_notebook, Node *p_folder);

        QString doExportCustomAllInOne(const ExportOption &p_option, Notebook *p_notebook, Node *p_folder);

        void exportAttachments(Node *p_node,
                               const QString &p_srcFilePath,
                               const QString &p_outputFolder,
                               const QString &p_destFilePath);

        WebViewExporter *getWebViewExporter(const ExportOption &p_option);

        void cleanUpWebViewExporter();

        void cleanUp();

        bool checkAskedToStop() const;

        QStringList doExportNotebook(const ExportOption &p_option, const QString &p_outputDir, Notebook *p_notebook);

        static ExportOption getExportOptionForIntermediateHtml(const ExportOption &p_option, const QString &p_outputDir);

        static QString evaluateCommand(const ExportOption &p_option,
                                       const QStringList &p_files,
                                       const QStringList &p_resourcePaths,
                                       const QString &p_filePath);

        static QString getQuotedPath(const QString &p_path);

        static void collectFiles(const QList<QSharedPointer<File>> &p_files, QStringList &p_inputFiles, QStringList &p_resourcePaths);

        // Managed by QObject.
        WebViewExporter *m_webViewExporter = nullptr;

        bool m_askedToStop = false;
    };
}

#endif // EXPORTER_H