path: root/src/dk.biks.bachelorizer/dk/biks/bachelorizer/Window.java

// SPDX-FileCopyrightText: 2025 <Alexander Marthin Klemensen stud-marthin@ruc.dk>
// SPDX-FileCopyrightText: 2025 <Ian Valentin Christensen stud-ianc@ruc.dk>
// SPDX-FileCopyrightText: 2025 Jonas Smedegaard <dr@jones.dk>
// SPDX-FileCopyrightText: 2025 <Zahed Noos zahed@ruc.dk>
// SPDX-License-Identifier: GPL-3.0-or-later

package dk.biks.bachelorizer;

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.ComboBox;
import javafx.scene.control.Label;
import javafx.scene.control.TextArea;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

import java.io.IOException;
import java.util.List;

/// Bachelorizer - JavaFX Window view
// Class is final to forbid subclassing,
// because object is passed to controller during instantiation
public final class Window extends Application {

    /// Default constructor
    // (declared explicitly only to silence javadoc)
    public Window() { }

    /// window width
    private static final int WINDOW_WIDTH = 1000;

    /// window height
    private static final int WINDOW_HEIGHT = 500;

    /// box width
    private static final int LIST_WIDTH = 250;

    /// box height
    private static final int LIST_HEIGHT = 35;

    /// Label styling
    private static final String LABEL_STYLE =
        "-fx-font-weight: bold;"
        + "-fx-font-size: 18;"
        + "-fx-padding: 10";

    /// Storage model
    private Storage store = new Database();

    /// UI model
    ///
    /// Must be subclass GUI to cover columns.
    private GUI ui = new GUI();

    /// Application controller
    private Controller control = new Controller(store, ui, this);

    /// column state data as List of ActivityColumn objects
    private List<ActivityColumn> columns;

    /// Application instantiation
    ///
    /// @param args  application parameters
    public static void main(final String[] args) {
        launch(args);
    }

    @Override
    public void start(final Stage stage) throws IOException {

        // pass application parameters to controller
        control.setParameters(getParameters().getRaw());

        // clear old insertions into participation table
        control.initialize();

        // define list of columns based on their names
        columns = List.of(
            new ActivityColumn(GUI.Section.PROGRAM),
            new ActivityColumn(GUI.Section.SUBJECT1),
            new ActivityColumn(GUI.Section.SUBJECT2),
            new ActivityColumn(GUI.Section.ELECTIVE)
        );

        // define button functionality for each activity column
        for (ActivityColumn col : columns) {
            col.nameLabel.setStyle(LABEL_STYLE);
            col.ectsLabel.setStyle(LABEL_STYLE);
            col.categoryCombo.setPrefSize(
                LIST_WIDTH, LIST_HEIGHT);
            col.activitySelect.setPrefSize(
                LIST_WIDTH, LIST_HEIGHT);
            col.area.setPrefWidth(LIST_WIDTH);

            // all boxes share same activity logic
            col.activitySelect.setOnAction(event -> {
                control.onActivitySelected(
                    col.categoryCombo,
                    col.activitySelect.getValue(),
                    col.area);
                control.updateEcts(
                    col.ectsLabel,
                    col.categoryCombo);
            });

            // handle each category box
            switch (col.section) {
              case GUI.Section.PROGRAM -> {
                col.categoryCombo.getItems().addAll(
                    "HumTek", "NatBach");
                col.categoryCombo.setOnAction(event -> {
                    control.onCategorySelected(
                      col.section,
                      col.categoryCombo.getValue());
                });
            }
              // TODO: use the list for filling the box
              case GUI.Section.SUBJECT1 -> {
                col.categoryCombo.getItems().addAll(
                    "Computer Science",
                    "Informatik",
                    "Astrology");
                col.categoryCombo.setOnAction(event -> {
                    control.onSubjectModuleSelected(
                      col.categoryCombo,
                      columns.get(
                        GUI.Section.SUBJECT2.column)
                        .categoryCombo);
                    control.onCategorySelected(
                      col.section,
                      col.categoryCombo.getValue());
                });
            }
              case GUI.Section.SUBJECT2 -> {
                col.categoryCombo.getItems().addAll(
                    "Computer Science",
                    "Informatik",
                    "Astrology");
                // TODO: figure out a better way...
                col.categoryCombo.setOnAction(event -> {
                    control.onSubjectModuleSelected(
                      col.categoryCombo,
                      columns.get(
                        GUI.Section.SUBJECT1.column)
                        .categoryCombo);
                    control.onCategorySelected(
                      col.section,
                      col.categoryCombo.getValue());
                });
            }
              case GUI.Section.ELECTIVE -> {

                // hide useless box
                col.categoryCombo.setVisible(false);

                control.fillElective(col.activitySelect);
            }
            }
        }

        // define HBox and scene for columns
        HBox root = new HBox(
            columns.get(GUI.Section.PROGRAM.column)
                .asVBox(),
            columns.get(GUI.Section.SUBJECT1.column)
                .asVBox(),
            columns.get(GUI.Section.SUBJECT2.column)
                .asVBox(),
            columns.get(GUI.Section.ELECTIVE.column)
                .asVBox());
        Scene scene = new Scene(
            root, WINDOW_WIDTH, WINDOW_HEIGHT);
        stage.setTitle("Bachelorizer - RUC Course Selector");
        stage.setScene(scene);
        stage.show();
    }

    /// column of activities
    ///
    /// @param section         structural section for column
    /// @param nameLabel       display text
    /// @param categoryCombo   dropdown list for categories
    /// @param activitySelect  dropdown list for activities
    /// @param area            description of chosen activities
    /// @param ectsLabel       text to display ECTS points
    private record ActivityColumn(
        GUI.Section section,
        Label nameLabel,
        ComboBox<String> categoryCombo,
        ComboBox<String> activitySelect,
        TextArea area,
        Label ectsLabel
    ) {

        /// column of activities
        ///
        /// @param section  structural section for column
        ActivityColumn(final GUI.Section section) {
            this(
                section,
                new Label(section.label),
                new ComboBox<>(),
                new ComboBox<>(),
                new TextArea(),
                new Label()
            );
        }

        /// activity columne as VBox
        ///
        /// @return  column of activities as VBox
        VBox asVBox() {
            return new VBox(
                nameLabel,
                categoryCombo,
                activitySelect,
                area,
                ectsLabel);
        }
    }

    /// populate activities for a category
    ///
    /// @param section     structural section to operate on
    /// @param activities  activities to apply as string
    public void setOptions(
        final GUI.Section section, final List<String> activities
    ) {

        // clear the activity selection box
        columns.get(section.column).activitySelect
            .getItems().clear();

        // fill activity box from data in store
        columns.get(section.column).activitySelect
            .getItems().addAll(activities);
    }

    /// remove selections from a category
    ///
    /// @param section     structural section to operate on
    public void clearSelections(final GUI.Section section) {

        // clear text area
        columns.get(section.column).area.clear();
    }
}