#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QString>
#include <cmath>

#include "config.h"


QT_BEGIN_NAMESPACE
namespace Ui {
class MainWindow;
}
QT_END_NAMESPACE

class MainWindow : public QMainWindow
{
    Q_OBJECT

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

private slots:
    void on_comboBox_thesis_spervisorEvaluation_activated(int index);

    void on_comboBox_thesis_examinerEvaluation_activated(int index);

    void on_comboBox_thesis_presentationEvaluation_activated(int index);

    void on_comboBox_exam_questionsEvaluation_activated(int index);

    void on_checkBox_comment1_presentation_checkStateChanged(const Qt::CheckState &arg1);

    void on_checkBox_comment1_prototype_checkStateChanged(const Qt::CheckState &arg1);

    void on_checkBox_comment1_video_checkStateChanged(const Qt::CheckState &arg1);

    void on_radioButton_comment2_quality1_clicked();

    void on_radioButton_comment2_quality2_clicked();

    void on_radioButton_comment2_quality3_clicked();

    void on_radioButton_comment2_quality4_clicked();

    void on_radioButton_comment2_quality5_clicked();

    void on_radioButton_comment3_yes_clicked();

    void on_radioButton_comment3_no_clicked();

    void on_checkBox_comment4_explanations_checkStateChanged(const Qt::CheckState &arg1);

    void on_radioButton_comment4_quality1_clicked();

    void on_radioButton_comment4_quality2_clicked();

    void on_radioButton_comment4_quality3_clicked();

    void on_radioButton_comment4_quality4_clicked();

    void on_radioButton_comment5_confidence1_clicked();

    void on_radioButton_comment5_confidence2_clicked();

    void on_radioButton_comment5_confidence3_clicked();

    void on_radioButton_comment5_quality1_clicked();

    void on_radioButton_comment5_quality2_clicked();

    void on_radioButton_comment5_quality3_clicked();

private:
    Ui::MainWindow *ui;

    /**
     * Initialize all input controls.
     */
    void _initialize_all();

    /**
     * Calculate the final evaluation for thesis and store it
     * into _eval_thesis_final.
     */
    void _calculate_thesisEvaluation();

    /**
     * Calculate the final evaluation for whole examination
     * and store it into _eval_final_text.
     */
    void _calculate_finalEvaluation();

    /**
     * Show a thesis evaluation state.
     */
    void _show_thesisEvaluation();

    /**
     * Show the whole examination final state.
     */
    void _show_finalEvaluation();

    /**
     * Show final vaverbal evaluation of student.
     */
    void _show_finalComment();

    /**
     * Create 1st comment as a whole sentence.
     */
    void _compose_comment1();

    /**
     * Create 2nd comment as a whole sentence.
     */
    void _compose_comment2();

    /**
     * Create 3rd comment as a whole sentence.
     */
    void _compose_comment3();

    /**
     * Create 4th comment as a whole sentence.
     */
    void _compose_comment4();

    /**
     * Create 5th comment as a whole sentence.
     */
    void _compose_comment5();

    /**
     * Helper method for converting evaluation from numerical
     * to text form.
     * @param x numerical value for evaluation
     * @return string
     */
    QString _convert_evaluation_from_number(double x);

    /**
     * Helper method for converting evaluation from text form
     * to numerical form.
     * @param x text value for evaluation
     * @return numerical value
     */
    double _convert_evaluation_from_text(QString x);

    // numerical or text values for thesis evaluation
    double _eval_thesis_supervisor{0};
    double _eval_thesis_examiner{0};
    double _eval_thesis_presentation{0};
    QString _eval_thesis_final_text{""};

    // numerical value for exam evaluation
    double _eval_exam_questions{0};

    // text value for final evaluation
    QString _eval_final_text{""};

    // flags for comment 1
    bool    _comm1_isPresentation{false};
    bool    _comm1_isPrototype{false};
    bool    _comm1_isVideo{false};

    QString _comm2_selectedQuality{""};

    QString _comm3_selectedAnswer{""};

    QString _comm4_explanations{""};
    QString _comm4_selectedQuality{""};

    QString _comm5_selectedConfidence{""};
    QString _comm5_selectedQuality{""};

    bool _comm5_isNoAnswer{false};

    // comments for verbal evaluation
    QString _comment1{""};
    QString _comment2{""};
    QString _comment3{""};
    QString _comment4{""};
    QString _comment5{""};
};
#endif // MAINWINDOW_H