import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.Color;
import java.awt.Image;
import java.awt.Dimension;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.BorderFactory;
import javax.swing.JFileChooser;
import javax.swing.JOptionPane;
import javax.swing.JFrame;
import javax.swing.ImageIcon;
import javax.swing.JPanel;
import javax.swing.JLabel;
import javax.swing.JButton;
import javax.swing.JTextField;
import javax.swing.JTextArea;
import javax.swing.JScrollPane;
import java.io.IOException;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.BufferedOutputStream;
import java.net.URLConnection;
import java.util.Properties;

public class formProfile extends JPanel implements ActionListener
{
	//Keeps a reference to where this file is saved on the disk
	private File file = null;
	private JFrame mainApp;

	private String strSavedName = "";
	private String strSavedEmail = "";
	private String strSavedAge = "";
	private String strSavedDes = ""; //Used to check if the file needs saving or not

	private String strSavedImageLocation = "";
	private String strImageLocation = ""; //The location of the last valid image
	private String strNewImageLocation = ""; //The location of the current picture being browsed for

	private JLabel lblName, lblEmail, lblAge, lblImage, lblDes;
	private JTextField txtName, txtEmail, txtAge;
	private JTextArea txtDes;
	private JButton cmdBrowse, cmdRemove;

	private JPanel panRoot, panProfileText, panGrid, panNorthEast, panNorthWest, panImage, panBrowse, panDes;

	public formProfile (JFrame mainApp)
	{

		this.mainApp = mainApp;

		lblName = new JLabel("Name: ", JLabel.RIGHT);
		lblName.setToolTipText("Name must only consist of letters and spaces");
		
		lblEmail = new JLabel("E-mail: ", JLabel.RIGHT);
		lblEmail.setToolTipText("Must be in the format someone@somewhere.extension");
		
		lblAge = new JLabel("Age: ", JLabel.RIGHT);
		lblAge.setToolTipText("Enter an age between 10 and 120");
		
		lblDes = new JLabel("description", JLabel.CENTER);
		lblDes.setToolTipText("Describe yourself in under 1,000 characters");
		
		lblImage = new JLabel("");
		lblImage.setToolTipText("This is how the image will look on the webpage");
		lblImage.setPreferredSize(new Dimension(200, 200));

		txtName = new JTextField("", 10);
		txtEmail = new JTextField("", 10);
		txtAge = new JTextField("", 2);

		txtDes = new JTextArea("", 6, 20);
		txtDes.setLineWrap(true);
		txtDes.setWrapStyleWord(true);
		
		JScrollPane containerDes = new JScrollPane(txtDes, JScrollPane.VERTICAL_SCROLLBAR_NEVER, JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);

		cmdBrowse = new JButton("Browse...");
		cmdRemove = new JButton("Remove");

		cmdBrowse.setToolTipText("Find an image from disk to upload to the website");
		cmdRemove.setToolTipText("Remove image from your profile");
		cmdRemove.setEnabled(false);

		cmdBrowse.addActionListener(this);
		cmdRemove.addActionListener(this);

		panRoot = new JPanel(new BorderLayout());
		panProfileText = new JPanel();
		panNorthWest = new JPanel(new BorderLayout());
		panNorthEast = new JPanel(new BorderLayout());
		panImage = new JPanel();
		panDes = new JPanel(new BorderLayout());
		panBrowse = new JPanel();
		panGrid = new JPanel(new GridLayout(3, 2, 2, 2));

		this.add(panRoot, BorderLayout.CENTER);
			panRoot.add(panProfileText, BorderLayout.WEST);
				panProfileText.add(panNorthWest);
				panNorthWest.add(panGrid, BorderLayout.NORTH);
					panGrid.add(lblName);
					panGrid.add(txtName);
					panGrid.add(lblEmail);
					panGrid.add(txtEmail);
					panGrid.add(lblAge);
					panGrid.add(txtAge);
				panNorthWest.add(panDes, BorderLayout.SOUTH);
					panDes.add(lblDes, BorderLayout.NORTH);
					panDes.add(containerDes, BorderLayout.SOUTH);
			panRoot.add(panNorthEast, BorderLayout.EAST);
				panNorthEast.add(panImage, BorderLayout.NORTH);
					panImage.add(lblImage);
				panNorthEast.add(panBrowse, BorderLayout.SOUTH);
					panBrowse.add(cmdBrowse);
					panBrowse.add(cmdRemove);

		panRoot.setBorder(BorderFactory.createEmptyBorder(2, 2, 2, 2));
		panGrid.setBorder(BorderFactory.createEmptyBorder(2, 2, 2, 4));
		panDes.setBorder(BorderFactory.createEmptyBorder(12, 1, 1, 0));
		lblImage.setBorder(BorderFactory.createLineBorder(new Color(0, 0, 0), 1));

	}

	public void setColours (Color clrBackground, Color clrForeground)
	{

		this.setBackground(clrBackground);
		panRoot.setBackground(clrBackground);
		panProfileText.setBackground(clrBackground);
		panNorthWest.setBackground(clrBackground);
		panNorthEast.setBackground(clrBackground);
		panImage.setBackground(clrBackground);
		panBrowse.setBackground(clrBackground);
		panGrid.setBackground(clrBackground);
		panDes.setBackground(clrBackground);

		lblName.setForeground(clrForeground);
		lblAge.setForeground(clrForeground);
		lblEmail.setForeground(clrForeground);
		lblDes.setForeground(clrForeground);

	}

	public void openProfileFromFile (Properties props, File file)
	{

		this.file = file;
		setupOpenedProfile(props);

		if (!strNewImageLocation.equals(""))
		{
			setupImage();
		}

	}

	private void setupOpenedProfile (Properties props)
	{

		strSavedName = props.getProperty("name");
		strSavedEmail = props.getProperty("email");
		strSavedAge = props.getProperty("age");
		strSavedDes = props.getProperty("des");

		strNewImageLocation = props.getProperty("pic");
		strSavedImageLocation = strNewImageLocation;

		txtName.setText(strSavedName);
		txtEmail.setText(strSavedEmail);
		txtAge.setText(strSavedAge);
		txtDes.setText(strSavedDes);

		isDataValid();

	}

	private void setupImage ()
	{

		byte[] imageData = getImageFromFile();

		if (imageData != null)
		{

			Image imgOrg = dataManager.createImage(imageData); 
			lblImage.setIcon(new ImageIcon(imgOrg.getScaledInstance(200, 200, Image.SCALE_AREA_AVERAGING)));//Creates a scaled image filter and applies it

			cmdRemove.setEnabled(true);
			strImageLocation = strNewImageLocation;

		}

	}

	private byte[] getImageFromFile ()
	{

		try
		{//Make sure the image is under 100kb big, is an image etc
			return pmValidData.getValidImageBytes(new File(strNewImageLocation), 102400);
		}
		catch (dialogueException ex)
		{
			ex.displayError();
		}

		return null;

	}

	public String getTitle ()
	{

		if (strSavedName.equals(""))
		{
			return "Unnamed profile";
		}

		return strSavedName;

	}

	public boolean saveProfileToFile (boolean saveAs) throws dialogueException
	{

		File saveFile = null;

		if (!isDataValid())
		{
			throw new dialogueException("Can not save this profile because it contains errors", "Invalid Data", JOptionPane.WARNING_MESSAGE);
		}

		if (!saveAs)
		{
			saveFile = this.file;
		}

		saveFile = pmWriteXML.save(mainApp, saveFile, getProfileAsProperties());

		if (saveFile != null)
		{

			this.file = saveFile;
			strSavedName = txtName.getText();
			strSavedEmail = txtEmail.getText();
			strSavedAge = txtAge.getText();
			strSavedDes = txtDes.getText();
			strSavedImageLocation = strImageLocation;

			return true;

		}

		return false;

	}

	public Properties uploadProfileToWebsite (String strSessionID, String strUploadScript) throws dialogueException
	{

		Properties props = getProfileAsProperties();

		props.setProperty("sessionID", strSessionID);

		String strImageUpload = "";

		if (!isDataValid())
		{
			throw new dialogueException("Can not upload this profile because it contains errors", "Invalid Data", JOptionPane.WARNING_MESSAGE);
		}

		if (strImageLocation.equals(""))
		{

			int choice = JOptionPane.showConfirmDialog(mainApp, "You have not selected an image to upload\nDo you wish to keep the existing picture in your profile?\n\nNo will delete the current picture from your profile", "Keep profile picture", JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.QUESTION_MESSAGE);

			if (choice == JOptionPane.CANCEL_OPTION)
			{
				return null;
			}
			else if (choice == JOptionPane.YES_OPTION)
			{
				strImageUpload = "leave";
			}
			else
			{
				strImageUpload = "delete";
			}

		}
		else if (!strImageLocation.equals(""))
		{
			strImageUpload = "upload";
		}


		URLConnection connection = null;

		try
		{
			connection = pmConnectionManager.getConnection(strUploadScript, true, true);
		}
		catch (Exception ex)
		{
			throw new dialogueException(ex.getMessage(), "Could not connect", JOptionPane.ERROR_MESSAGE);
		}

		props.setProperty("imageUpload", strImageUpload);

		try
		{
			//Not uploading an image
			if (strImageUpload.equals("leave") || strImageUpload.equals("delete"))
			{
				return pmConnectionManager.sendAndRecTextData(connection, props);
			}
			else
			{
				//getImageFromFile() uses strNewImageLocation, but for the upload want to use the valid image
				String strTemp = strNewImageLocation; //So save the current new location, then use the valid image
				strNewImageLocation = strImageLocation;
				
				byte[] imageData = getImageFromFile();
				
				strNewImageLocation = strTemp; //Then restore the old value

				if (imageData == null)
				{
					throw new dialogueException("The image could not be found, possibly because it has been deleted, renamed or moved", "Broken Image", JOptionPane.ERROR_MESSAGE);
				}

				scriptUploadData uploadData = new scriptUploadData(1);
				uploadData.put(imageData, "file", strImageLocation, "image/" + pmValidData.getFileExt(strImageLocation));

				return pmConnectionManager.sendAndRecMultiData(connection, props, uploadData);

			}

		}
		catch (IOException ex)
		{
			throw new dialogueException("An error occured when trying to upload the profile\n" + ex.getMessage(), "Upload Error", JOptionPane.ERROR_MESSAGE);
		}

	}

	private Properties getProfileAsProperties ()
	{

		Properties props = new Properties();
		props.setProperty("name", txtName.getText());
		props.setProperty("email", txtEmail.getText());
		props.setProperty("age", txtAge.getText());
		props.setProperty("des", txtDes.getText());
		props.setProperty("pic", strImageLocation);

		return props;

	}

	public boolean isDataValid ()
	{
		
		boolean nameValid = false;
		boolean emailValid = false;
		boolean desValid = false;
		boolean ageValid = false;

		if (txtAge.getText().equals("") || pmValidData.getValidAge(txtAge.getText(), 10, 120) != -1)
		{
			ageValid = true;
		}
		else
		{
			JOptionPane.showMessageDialog(mainApp, "The age is not valid\nAge must be a numeric value between 10 and 120", "Invalid Age", JOptionPane.WARNING_MESSAGE);
		}


		if (txtEmail.getText().equals("") || (pmValidData.isValidEmail(txtEmail.getText()) && txtEmail.getText().length() >= 6 && txtEmail.getText().length() <= 40))
		{
			emailValid = true;			
		}
		else
		{
			JOptionPane.showMessageDialog(mainApp, "E-mail addresses must follow the format someone@somewhere.extension\nIt must be between 6 and 40 characters long", "Invalid E-mail", JOptionPane.WARNING_MESSAGE);
		}

		if (txtName.getText().equals("") || pmValidData.isValidName(txtName.getText()))
		{
			nameValid = true;
		}
		else
		{
			JOptionPane.showMessageDialog(mainApp, "The name must contain letters and spaces\nand be between 2 to 20 characters long", "Invalid Name", JOptionPane.WARNING_MESSAGE);
		}
		
		if (txtDes.getText().length() <= 1000)
		{
			desValid = true;
		}
		else
		{
			JOptionPane.showMessageDialog(mainApp, "The profile description must be 1,000 characters or less", "Invalid Des", JOptionPane.WARNING_MESSAGE);
		}

		//Returns true only if all of the variables are true
		return (nameValid && emailValid && desValid && ageValid);

	}

	public boolean needsSaving ()
	{

		String strTempAge = "";

		if (!(txtAge.getText().equals("") && strSavedAge.equals("")))
		{
			strTempAge = Integer.toString(pmValidData.getValidAge(txtAge.getText(), -1, -1));
		}

		return (!txtName.getText().equals(strSavedName) || !txtEmail.getText().equals(strSavedEmail) || !txtDes.getText().equals(strSavedDes) || !strTempAge.equals(strSavedAge) || !strSavedImageLocation.equals(strImageLocation));

	}

	private boolean openImageFromDisk ()
	{

		File fileDir = null;

		if (strNewImageLocation.equals(""))
		{			
			fileDir = new File(System.getProperty("user.dir"));
		}
		else
		{
			
			fileDir = new File(strNewImageLocation);
			 
			if (!fileDir.exists()) //If the location does not exist
			{
				fileDir = new File(System.getProperty("user.dir"));
			}
			
		}

		JFileChooser fileOpen = new JFileChooser();
		fileOpen.addChoosableFileFilter(new fileTypeImage());
		fileOpen.setAcceptAllFileFilterUsed(false);
		fileOpen.setCurrentDirectory(fileDir);
		fileOpen.setApproveButtonToolTipText("Select this picture");
		fileOpen.setDialogType(JFileChooser.OPEN_DIALOG);
		fileOpen.setDialogTitle("Select Picture");

		int returnValue = fileOpen.showDialog(mainApp, "Select");

		if (returnValue == JFileChooser.APPROVE_OPTION)
		{

			strNewImageLocation = fileOpen.getSelectedFile().getAbsolutePath();
			return true;

		}

		return false;

	}

	public void actionPerformed (ActionEvent e)
	{

		if (e.getSource() == cmdRemove)
		{

			strImageLocation = "";
			lblImage.setIcon(null);
			cmdRemove.setEnabled(false);

		}
		else if (e.getSource() == cmdBrowse)
		{

			if (openImageFromDisk())
			{
				setupImage();
			}

		}

	}

}