package eg.edu.alexu.cse.oop.draw.project;

hatla2e goz2 el plugin f goz2 zorar el install plugin w goz2 zorar el ezternal shape

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.io.File;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.*;
import java.util.List;


/**
 * Created by Mohamed Abdelrehim on 3/16/2017.
 */
public class GUI extends JFrame {
  private JPanel root;
  private JPanel shapeButtons;
  private JButton externalShapeButton;
  private JButton redoButton;
  private JButton undoButton;
  private JPanel shapeActions;
  private JPanel actionMemory;
  private JPanel actions;
  private JPanel canvasArea;
  private JComboBox comboBox1;
  private JButton deleteButton;
  private JButton editButton;
  private JButton copyButton;
  private JButton moveButton;
  private JButton colorButton;
  private JButton circleButton;
  private JButton ellipseButton;
  private JButton lineSegmentButton;
  private JButton rectangleButton;
  private JButton triangleButton;
  private JButton squareButton;
  private DrawingEngine drawingEngine;
  private JButton installPluginButton;

  private Shape c;
  private Input dialog;
  private MoveInput move;
  private ArrayList<Class<? extends Shape>> supportedShapes;
  private int i;

  private static GUI gui = new GUI();

  private GUI() {
    drawingEngine.setVisible(true);

    move = new MoveInput();
    i = 0;

    deleteButton.addActionListener((ActionEvent e) ->  {
      c = (Shape)comboBox1.getSelectedItem();
      drawingEngine.removeShape(c);
      comboBox1.removeAllItems();
      updateComboBox();

    });

    editButton.addActionListener((ActionEvent e) ->  {

      c = (Shape)comboBox1.getSelectedItem();
      dialog = new Input(c);
      getUserInput();
      Shape d = dialog.getShapeVal();
      drawingEngine.removeShape(c);
      drawingEngine.addShape(d);
      comboBox1.removeAllItems();
      updateComboBox();
    });

    copyButton.addActionListener((ActionEvent e) ->  {
      c = (Shape)comboBox1.getSelectedItem();
      try {
        Shape d = (Shape)c.clone();
        d.setFillColor(c.getFillColor());
        drawingEngine.addShape(d);
        comboBox1.removeAllItems();
        updateComboBox();
      }
      catch (CloneNotSupportedException e1) {
        e1.printStackTrace();
      }
    });

    moveButton.addActionListener((ActionEvent e) ->  {
      c = (Shape)comboBox1.getSelectedItem();
      getMoveUserInput();
      c.setPosition(move.getPoint());
      Shape d = c;
      drawingEngine.removeShape(c);
      drawingEngine.addShape(d);
      comboBox1.removeAllItems();
      updateComboBox();
    });

    colorButton.addActionListener((ActionEvent e) ->  {
      c = (Shape)comboBox1.getSelectedItem();
      Color selectedColor = JColorChooser.showDialog(null, "Pick Color", c.getFillColor());
      if (selectedColor != null) {
        c.setFillColor(selectedColor);
        Shape temp = c;
        drawingEngine.removeShape(c);
        drawingEngine.addShape(temp);
        drawingEngine.refresh(drawingEngine.getGraphics());
      }

    });

    circleButton.addActionListener((ActionEvent e) ->  {
      c = new Circle();
      dialog = new Input(c);
      getUserInput();
      if(dialog.getIsCancel()) {
        c = dialog.getShapeVal();
        drawingEngine.addShape(c);
        comboBox1.removeAllItems();
        updateComboBox();
      }

    });

    ellipseButton.addActionListener((ActionEvent e) ->  {
      c = new Ellipse();
      dialog = new Input(c);
      getUserInput();
      if(dialog.getIsCancel()) {
        c = dialog.getShapeVal();
        drawingEngine.addShape(c);
        comboBox1.removeAllItems();
        updateComboBox();
      }

    });

    lineSegmentButton.addActionListener((ActionEvent e) ->  {

      c = new LineSegment();
      dialog = new Input(c);
      getUserInput();
      if(dialog.getIsCancel()) {
        c = dialog.getShapeVal();
        drawingEngine.addShape(c);
        comboBox1.removeAllItems();
        updateComboBox();
      }

    });

    rectangleButton.addActionListener((ActionEvent e) ->  {

      c = new Rectangle();
      dialog = new Input(c);
      getUserInput();
      if(dialog.getIsCancel()) {
        c = dialog.getShapeVal();
        drawingEngine.addShape(c);
        comboBox1.removeAllItems();
        updateComboBox();
      }

    });

    triangleButton.addActionListener((ActionEvent e) ->  {

      c = new Triangle();
      dialog = new Input(c);
      getUserInput();
      if(dialog.getIsCancel()) {
        c = dialog.getShapeVal();
        drawingEngine.addShape(c);
        comboBox1.removeAllItems();
        updateComboBox();
      }

    });

    squareButton.addActionListener((ActionEvent e) ->  {

      c = new Square();
      dialog = new Input(c);
      getUserInput();

      if(dialog.getIsCancel()) {
        c = dialog.getShapeVal();
        drawingEngine.addShape(c);
        comboBox1.removeAllItems();
        updateComboBox();
      }

    });

    externalShapeButton.addActionListener((ActionEvent e) ->  {
      ArrayList supportedShapes = new ArrayList<>();
      supportedShapes =(ArrayList<Class<? extends Shape>>) drawingEngine.getSupportedShapes();
      Class b = (Class)supportedShapes.get(0);
      try {
        Constructor constructor = b.getConstructor(null);
        dialog = new Input(c);
        getUserInput();
        if(dialog.getIsCancel()) {
          c = dialog.getShapeVal();
          drawingEngine.addShape(c);
          comboBox1.removeAllItems();
          updateComboBox();
        }
        try {
          c = (Shape) constructor.newInstance();
        } catch (InstantiationException e1) {
          e1.printStackTrace();
        } catch (IllegalAccessException e1) {
          e1.printStackTrace();
        } catch (InvocationTargetException e1) {
          e1.printStackTrace();
        }
      } catch (NoSuchMethodException e1) {
        e1.printStackTrace();
      }
    });

    undoButton.addActionListener((ActionEvent e) ->  {
      drawingEngine.undo();
      drawingEngine.refresh(drawingEngine.getGraphics());
      comboBox1.removeAllItems();

      updateComboBox();
    });

    redoButton.addActionListener((ActionEvent e) ->  {
      drawingEngine.redo();
      drawingEngine.refresh(drawingEngine.getGraphics());
      comboBox1.removeAllItems();

      updateComboBox();
    });
    installPluginButton.addActionListener((ActionEvent e) -> {
      List<URL> urls = new ArrayList<>();
      JFileChooser fileChooser = new JFileChooser();
      int retVal = fileChooser.showOpenDialog(null);
      if (retVal == JFileChooser.APPROVE_OPTION) {
        File file = fileChooser.getSelectedFile();
        try {
          URL url = file.toURI().toURL();
          urls.add(url);
          URLClassLoader classLoader = new URLClassLoader(urls.toArray(new URL[urls.size()]));
          String className = JOptionPane.showInputDialog(null, "Enter proper class name");
          try {
            Class importedClass = classLoader.loadClass(className);
            drawingEngine.installPluginShape(importedClass);
          }
          catch (ClassNotFoundException e1) {
            e1.printStackTrace();
          }
        }
        catch (MalformedURLException e1) {
          e1.printStackTrace();
        }
      }

    });
  }

  public static GUI getInstance() {
    return gui;
  }

  private void updateComboBox() {
    Shape[] arr = drawingEngine.getShapes();
    for (int i = 0; i < drawingEngine.getNumOfShapes(); i++) {
      comboBox1.addItem(arr[i]);
    }
  }

  private void getUserInput() {
    dialog.pack();
    dialog.setVisible(true);
  }

  private void getMoveUserInput() {
    move.pack();
    move.setVisible(true);
  }


  public static void main(String[] args) {
    JFrame frame = new JFrame("Shape Drawing App");
    frame.setContentPane(new GUI().root);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.pack();
    frame.setVisible(true);
  }
}