HW-07-JavaFX/src/main/java/sbu/javafx/MusicController.java

package sbu.javafx;

import javafx.fxml.FXML;
import javafx.event.ActionEvent;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.ListCell;
import javafx.scene.control.ListView;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.layout.*;
import javafx.scene.Scene;
import javafx.scene.layout.VBox;


public class MusicController {

    @FXML
    public ListView<Song> playlistListView;
    @FXML
    public ListView<Song> musicsListView;
    @FXML
    private VBox root;
    @FXML
    Label nowPlayingLabel;
    @FXML
    Button playPauseBtn;
    @FXML
    Button openPlaylistBtn;
    @FXML
    Button themeToggleBtn;
    private boolean isDarkMode=true;
    private boolean isPlaying=false;
    private Song currentSong = null;
    ImageView playIcon;
    ImageView pauseIcon;

    // TODO: Define your UI components using the @FXML annotation.

    @FXML
    public void initialize() {
        Image playImg = new Image(getClass().getResourceAsStream("/image/play.png"));
        Image pauseImg = new Image(getClass().getResourceAsStream("/image/pause.png"));

        playIcon = new ImageView(playImg);
        pauseIcon = new ImageView(pauseImg);

        playIcon.setFitWidth(35);
        playIcon.setFitHeight(35);
        pauseIcon.setFitWidth(35);
        pauseIcon.setFitHeight(35);

        playPauseBtn.setGraphic(playIcon);

    }

    public void setupListView(ListView<Song> listView) {

        listView.setCellFactory(param -> new ListCell<Song>() {
            @Override
            protected void updateItem(Song song, boolean empty) {
                super.updateItem(song, empty);

                if (empty || song == null) {
                    setText(null);
                    setGraphic(null);
                    return;
                }

                Label nameLabel = new Label(song.getName());
                nameLabel.setStyle("-fx-font-weight: bold; -fx-font-size: 14px;");

                Label singerLabel = new Label(song.getSinger());
                singerLabel.setStyle("-fx-text-fill: gray; -fx-font-size: 12px;");

                VBox songInfo = new VBox(3);
                songInfo.setAlignment(Pos.CENTER_LEFT);

                songInfo.getChildren().addAll(nameLabel, singerLabel);

                Button addToPlaylistBtn = new Button("Add to playlist");
                addToPlaylistBtn.getStyleClass().add("playlist-button");
                addToPlaylistBtn.setOnAction(e -> {
                    addToPlaylist(e, song);
                });

                Button playBtn = new Button("Play");
                playBtn.getStyleClass().add("play-button");
                playBtn.setOnAction(e -> {
                    play(e, song);
                });

                HBox row = new HBox(10);
                row.setPadding(new Insets(10));
                row.setAlignment(Pos.CENTER_LEFT);

                Region spacer = new Region();
                HBox.setHgrow(spacer, Priority.ALWAYS);

                row.getChildren().addAll(songInfo, spacer, playBtn, addToPlaylistBtn);

                setGraphic(row);
            }
        });
    }

    @FXML
    public void toggleTheme(ActionEvent event) {
        if (isDarkMode) {
            themeToggleBtn.setText("Light");
            changeTheme();
            isDarkMode = false;
        } else {
            themeToggleBtn.setText("Dark");
            changeTheme();
            isDarkMode = true;
        }
    }

    public void changeTheme(){


        Scene scene = root.getScene();

        scene.getStylesheets().clear();

        if(isDarkMode){
            scene.getStylesheets().add(
                    getClass().getResource("/css/dark.css").toExternalForm()
            );

        }else{
            scene.getStylesheets().add(
                    getClass().getResource("/css/light.css").toExternalForm()
            );
        }

        isDarkMode=!isDarkMode;
    }

    //TODO: Implement the logic to play a song. This method should update the UI to show which song is currently playing.


    @FXML
    public void handlePlayAction() {
        //Update labels, change button icons, etc.
    }

    public void play(ActionEvent event, Song song){
        currentSong=song;
        nowPlayingLabel.setText(song.getName());
        if (!isPlaying)
            playPause(event);
        //کد پخش
    }

    @FXML
    public void playPause(ActionEvent a){
        if(isPlaying){
            playPauseBtn.setGraphic(playIcon);
            isPlaying=false;
            //کد توقف اینجاست چون برای هر توقفی دکمه ی پاز رو میزنیم ولی برای پلی ممکنه از بین آهنگ ها بزنیم
        }
        else{
            playPauseBtn.setGraphic(pauseIcon);
            isPlaying=true;
        }
    }

    //TODO: Logic to add a specific song to the user's playlist.

    public void addToPlaylist(ActionEvent event, Song song) {
        //Add the song to a list or update a ListView.
        playlistListView.getItems().add(song);
    }

    // TODO:This method should open a new window or change the current scene  to display the "Playlist" page.

    public void openPlaylistWindow() {
        //Create a new stage and show the playlist UI.
        musicsListView.setVisible(false);
        if(playlistListView!=null)
            playlistListView.setVisible(true);
        else
            throw new RuntimeException("Playlist is empty");
    }

}