import javafx.application.Application;
import javafx.application.Platform;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.layout.*;
import javafx.scene.text.Font;
import javafx.scene.text.Text;
import javafx.stage.Stage;
import javafx.scene.layout.StackPane;
import javafx.collections.*;
import javafx.scene.paint.*;
import javafx.scene.text.*;
import javafx.scene.Group;
import java.util.Random;

public class Detaildata extends Application
{
    Text textKasir = new Text("Petugas Kasir :");
    Text KodeBarang = new Text("");
    Text textHarga = new Text("");
    Text textJumlah = new Text("");
    Text textTotalBayar = new Text("");
    Text NamaBarang = new Text("");
    Text HargaBarang = new Text("");
    Text TotalHargaText = new Text("");
    TextField textFieldJumlah = new TextField ();
    TextField textFieldKasir = new TextField ();
    Text JumlahText = new Text("");

    ObservableList<String> optionBarang = FXCollections.observableArrayList( "A001", "B002", "C003");
    final ComboBox comboBoxBarang = new ComboBox(optionBarang);

    private int TotalHarga;
    private int Harga;
    private int Jumlah;

    @Override
    public void start(Stage stage) throws Exception
    {
        Scene scene = new Scene(new Group(), 500, 250);
        stage.setTitle("Detail Pembelian");

        textKasir.setFont(Font.font("SanSerif",18));
        KodeBarang.setFont(Font.font("SanSerif", 18));
        textHarga.setFont(Font.font("SanSerif", 18));
        textJumlah.setFont(Font.font("SanSerif", 18));
        textTotalBayar.setFont(Font.font("SanSerif",18));

        GridPane grid = new GridPane();
        grid.setVgap(10);
        grid.setHgap(10);
        grid.setPadding(new Insets(10, 10, 10, 10));
        grid.add(new Label("Petugas Kasir : "), 0, 0);
        grid.add(textFieldKasir, 1, 0);
        grid.add(new Label("Kode Barang : " ), 0, 1);
        grid.add(comboBoxBarang, 1, 1);

        EventHandler<ActionEvent> event = new EventHandler<ActionEvent>()
        {
            public void handle(ActionEvent e)
            {
                if(comboBoxBarang.getValue() == "A001")
                {
                    NamaBarang.setText("Sticker");
                    HargaBarang.setText("Rp5000");
                    Harga = 5000;
                }
                else if(comboBoxBarang.getValue() == "B002")
                {
                    NamaBarang.setText("Enamel Pin");
                    HargaBarang.setText("Rp25000");
                    Harga = 25000;
                }
                else if(comboBoxBarang.getValue() == "C003")
                {
                    NamaBarang.setText("Patch");
                    HargaBarang.setText("Rp20000");
                    Harga = 20000;
                }
            }
        };

        comboBoxBarang.setOnAction(event);

        grid.add(new Label("Nama Barang : "), 0, 2);
        grid.add(NamaBarang, 1, 2);
        grid.add(new Label("Harga : "), 0, 3);
        grid.add(HargaBarang,1, 3);
        grid.add(new Label("Jumlah Barang : "), 0, 4);
        grid.add(textFieldJumlah, 1, 4);

        EventHandler<ActionEvent> eventJumlah = new EventHandler<ActionEvent>()
        {
            public void handle(ActionEvent e)
            {
                TotalHarga = Integer.parseInt(textFieldJumlah.getText()) * Harga;
                TotalHargaText.setText("Rp " + Integer.toString(TotalHarga));
                Jumlah = Integer.parseInt(textFieldJumlah.getText());
                JumlahText.setText(Integer.toString(Jumlah));
            }
        };

        textFieldJumlah.setOnAction(eventJumlah);
        grid.add(new Label("Total Harga : "), 0, 5);
        grid.add(TotalHargaText, 1, 5);
        grid.add(new Label("Total Bayar : "), 0, 6);
        grid.add(TotalHargaText, 1, 6);

        Button button = new Button("Cetak");
        grid.add(button, 1, 6);

        button.setOnAction(this::buttonClick);

        Group root = (Group)scene.getRoot();
        root.getChildren().add(grid);
        stage.setScene(scene);
        stage.show();
    }

        private void buttonClick(ActionEvent event)
        {
            Cetak c = new Cetak(NamaBarang, JumlahText, TotalHargaText);
            c.showCetak();
        }
    }