path: root/src/com.example.portfolio2/com/example/portfolio2/HelloApplication.java

package com.example.portfolio2;

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;

public class HelloApplication extends Application {
    // Initializing model, controller and database objects
    private Model model = new Model();
    private Controller con = new Controller(model,this);
    MyDB myDB = new MyDB();

    /* Below is the original implementation of the UI elements with
    accompanying, individual calls to setOnAction to specify functionality.
    Before changing to a list format,
    we made sure methods in controller and model
    were generalized to allow for the new structure seamlessly.
    private ComboBox<String> programCombo = new ComboBox<>();
    private ComboBox<String> subject1Combo = new ComboBox<>();
    private ComboBox<String> subject2Combo = new ComboBox<>();
    private ComboBox<String> electiveCombo = new ComboBox<>();

    private ComboBox<String> programSelect = new ComboBox<>();
    private ComboBox<String> subject1Select = new ComboBox<>();
    private ComboBox<String> subject2Select = new ComboBox<>();
    private ComboBox<String> electiveSelect = new ComboBox<>();

    private TextArea programArea = new TextArea();
    private TextArea subject1Area = new TextArea();
    private TextArea subject2Area = new TextArea();
    private TextArea electiveArea = new TextArea();

    private Label programEcts = new Label();
    private Label subject1Ects = new Label();
    private Label subject2Ects = new Label();
    private Label electiveEcts = new Label();

    private VBox program = new VBox(new Label("Program"), programCombo, programSelect, programArea, programEcts);
    private VBox subject1 = new VBox(new Label("Subject 1"), subject1Combo, subject1Select, subject1Area, subject1Ects);
    private VBox subject2 = new VBox(new Label("Subject 2"), subject2Combo, subject2Select, subject2Area, subject2Ects);
    private VBox elective = new VBox(new Label("Elective"), electiveCombo, electiveSelect, electiveArea, electiveEcts);
    */

    @Override
    public void start(Stage stage) throws IOException {
        // Clears old insertions into the participation table
        con.initialize();

        // Defines a list of columns based on their names.
        List<ActivityColumn> columns = List.of(
            new ActivityColumn("Program"),
            new ActivityColumn("Subject 1"),
            new ActivityColumn("Subject 2"),
            new ActivityColumn("Elective")
        );

        // Defines a list of subject modules
        List<String> subjectModules = List.of("Computer Science", "Informatik", "Astrology");

        // Loop for defining button funtionality for each activity column
        for (ActivityColumn col : columns) {
            col.nameLabel.setStyle("-fx-font-size: 18px; -fx-padding: 10px;"); // Styling
            col.ectsLabel.setStyle("-fx-font-size: 18px; -fx-padding: 10px");
            col.categoryCombo.setPrefSize(250, 35);
            col.activitySelect.setPrefSize(250, 35);
            col.area.setPrefWidth(250);

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

            switch (col.name) { // Switch statement handles different category boxes
              case "Program" -> {
                col.categoryCombo.getItems().addAll("HumTek", "NatBach");
                col.categoryCombo.setOnAction(event -> {
                    con.onComboSelected(col.categoryCombo, col.activitySelect, col.area);
                });
            }
              case "Subject 1" -> { // We considered using the list for filling the box but couldn't figure it out
                col.categoryCombo.getItems().addAll("Computer Science", "Informatik", "Astrology");
                col.categoryCombo.setOnAction(event -> {
                    con.onSubjectModuleSelected(col.categoryCombo, columns.get(2).categoryCombo, subjectModules);
                    con.onComboSelected(col.categoryCombo, col.activitySelect, col.area);
                });
            }
              case "Subject 2" -> {
                col.categoryCombo.getItems().addAll("Computer Science", "Informatik", "Astrology");
                col.categoryCombo.setOnAction(event -> { // We figured we have to specify
                    // the second column like this but reckon there's a better way.
                    con.onSubjectModuleSelected(col.categoryCombo, columns.get(1).categoryCombo, subjectModules);
                    con.onComboSelected(col.categoryCombo, col.activitySelect, col.area);
                });
            }
              case "Elective" -> {
                col.categoryCombo.setVisible(false); // Hide useless box
                con.fillElective(col.activitySelect);
            }
            }
        }

        // Define an HBox based on the columns and define the scene based on it.
        HBox root = new HBox(columns.get(0).asVBox(), columns.get(1).asVBox(), columns.get(2).asVBox(), columns.get(3).asVBox());
        Scene scene = new Scene(root, 1000, 500);
        stage.setTitle("Course Selector RUC: Ultimate Deluxe Edition");
        stage.setScene(scene);
        stage.show();
    }

    public static void main(String[] args) {
        launch();
    }

    // Class for each column of activities
    private class ActivityColumn {
        // Each column contains these elements
        String name;
        Label nameLabel;
        ComboBox<String> categoryCombo;
        ComboBox<String> activitySelect;
        TextArea area;
        Label ectsLabel;

        ActivityColumn(String name) {
            this.name = name;
            nameLabel = new Label(name);
            categoryCombo = new ComboBox<>();
            activitySelect = new ComboBox<>();
            area = new TextArea();
            ectsLabel = new Label();
            // new column, "this.name" to define and saved in the text felt,
            // new "nameLabel" to show visual text.
            // CategoryCombo creat a dropdown list
            // activitySelect creat one more dropdown list with Combobox, possible to choose activity.
            // area = new TextArea helps create a text felt to describe the chosen activity
            // ectsLabel = new Label shows text for ects points

        }

        VBox asVBox() {
            return new VBox(nameLabel, categoryCombo, activitySelect, area, ectsLabel);
        }
    }
}