package org.autoplot.jythonsupport;

import java.awt.Component;
import java.awt.Toolkit;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.ClipboardOwner;
import java.awt.datatransfer.StringSelection;
import java.awt.datatransfer.Transferable;
import java.io.IOException;
import javax.swing.JDialog;
import javax.swing.JEditorPane;
import javax.swing.JOptionPane;
import jsyntaxpane.DefaultSyntaxKit;

/**
 * Convenient tool for converting Java code found on-line into Jython
 * code which can be tinkered with.
 * @author jbf
 */
public class JavaJythonConverter extends javax.swing.JPanel {

    public JavaJythonConverter( JEditorPane editor ) {
        this(editor, DIR_JAVA_TO_JYTHON);
    }
    /**
     * Creates new form JavaJythonConverter
     * @param editor editor from which preferences come
     * @param direction
     */
    public JavaJythonConverter( JEditorPane editor, int direction ) {
        initComponents();
        
        this.direction= direction;
        
        DefaultSyntaxKit.initKit();
        javaEditorPane.setContentType("text/java");

        DefaultSyntaxKit.initKit();
        jythonEditorPane.setContentType("text/python");
        
        if ( direction==DIR_JAVA_TO_JYTHON ) {
            
        } else {
            Component _1= jSplitPane1.getLeftComponent();
            Component _2= jSplitPane1.getRightComponent();
            jSplitPane1.setLeftComponent(_2);
            jSplitPane1.setRightComponent(_1);
            jSplitPane1.revalidate();
            jButton1.setText("Convert Jython to Java");
            jButton2.setText("Copy Java to Clipboard");
        }

        if ( editor!=null ) {
            javaEditorPane.setBackground( editor.getBackground() );
            javaEditorPane.setForeground( editor.getForeground() );
            javaEditorPane.setFont(editor.getFont());
            jythonEditorPane.setBackground( editor.getBackground() );
            jythonEditorPane.setForeground( editor.getForeground() );
            jythonEditorPane.setFont(editor.getFont());
        }
    }
    public static final int DIR_JAVA_TO_JYTHON = 1;
    public static final int DIR_JYTHON_TO_JAVA = 2;

    private int direction;
    
    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
        jPanel2 = new javax.swing.JPanel();
        jSplitPane1 = new javax.swing.JSplitPane();
        jPanel3 = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();
        jScrollPane1 = new javax.swing.JScrollPane();
        javaEditorPane = new javax.swing.JEditorPane();
        jPanel4 = new javax.swing.JPanel();
        jScrollPane2 = new javax.swing.JScrollPane();
        jythonEditorPane = new javax.swing.JEditorPane();
        jLabel2 = new javax.swing.JLabel();

        jButton1.setText("Convert Java to Jython");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jButton2.setText("Copy Jython to Clipboard");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
                .addContainerGap(382, Short.MAX_VALUE)
                .addComponent(jButton1)
                .addGap(280, 280, 280)
                .addComponent(jButton2))
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                .addComponent(jButton1)
                .addComponent(jButton2))
        );

        jSplitPane1.setDividerLocation(400);
        jSplitPane1.setResizeWeight(0.5);

        jLabel1.setText("Java Code");

        jScrollPane1.setViewportView(javaEditorPane);

        javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
        jPanel3.setLayout(jPanel3Layout);
        jPanel3Layout.setHorizontalGroup(
            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 456, Short.MAX_VALUE)
            .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addComponent(jLabel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );
        jPanel3Layout.setVerticalGroup(
            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel3Layout.createSequentialGroup()
                .addGap(31, 31, 31)
                .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 641, Short.MAX_VALUE))
            .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(jPanel3Layout.createSequentialGroup()
                    .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 24, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGap(0, 648, Short.MAX_VALUE)))
        );

        jSplitPane1.setLeftComponent(jPanel3);

        jScrollPane2.setViewportView(jythonEditorPane);

        jLabel2.setText("Jython Code");

        javax.swing.GroupLayout jPanel4Layout = new javax.swing.GroupLayout(jPanel4);
        jPanel4.setLayout(jPanel4Layout);
        jPanel4Layout.setHorizontalGroup(
            jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel4Layout.createSequentialGroup()
                .addComponent(jLabel2)
                .addGap(0, 508, Short.MAX_VALUE))
            .addGroup(jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addComponent(jScrollPane2, javax.swing.GroupLayout.DEFAULT_SIZE, 593, Short.MAX_VALUE))
        );
        jPanel4Layout.setVerticalGroup(
            jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel4Layout.createSequentialGroup()
                .addComponent(jLabel2)
                .addGap(0, 657, Short.MAX_VALUE))
            .addGroup(jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel4Layout.createSequentialGroup()
                    .addGap(29, 29, 29)
                    .addComponent(jScrollPane2, javax.swing.GroupLayout.DEFAULT_SIZE, 643, Short.MAX_VALUE)))
        );

        jSplitPane1.setRightComponent(jPanel4);

        javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
        jPanel2.setLayout(jPanel2Layout);
        jPanel2Layout.setHorizontalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jSplitPane1, javax.swing.GroupLayout.Alignment.TRAILING)
        );
        jPanel2Layout.setVerticalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jSplitPane1, javax.swing.GroupLayout.Alignment.TRAILING)
        );

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(0, 0, Short.MAX_VALUE))
                    .addComponent(jPanel2, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(18, 18, 18)
                .addComponent(jPanel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addContainerGap())
        );
    }// </editor-fold>//GEN-END:initComponents

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
        if ( direction==DIR_JAVA_TO_JYTHON ) {
            String java= javaEditorPane.getText();
            String jython= JythonToJavaConverter.convertReverse(java);
            jythonEditorPane.setText(jython);
        } else if ( direction==DIR_JYTHON_TO_JAVA ) {
            try {
                String jython= jythonEditorPane.getText();
                String java= JythonToJavaConverter.convert(jython);
                javaEditorPane.setText(java);
            } catch (Exception ex) {
                ex.printStackTrace();
                JOptionPane.showMessageDialog(this,ex.toString());
            }
        }
    }//GEN-LAST:event_jButton1ActionPerformed

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed
        Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
        StringSelection ss= new StringSelection( jythonEditorPane.getText() );
        clipboard.setContents( ss, new ClipboardOwner() {
            @Override
            public void lostOwnership(Clipboard clipboard, Transferable contents) {
            }
        });
    }//GEN-LAST:event_jButton2ActionPerformed

    

    public static void main( String[] args ) throws IOException {
        JavaJythonConverter cc= new JavaJythonConverter(null);

        String src= "            this.args= new LinkedHashMap<>(args);\n" +
"            String s= args.get(\"start\");\n" +
"            if ( s==null ) return \"periodic field needs start\";\n" +
"            start= TimeUtil.isoTimeToArray(s);\n" +
"            julday= TimeUtil.julianDay( start[0], start[1], start[2] );\n" +
"            start[0]= 0;\n" +
"            start[1]= 0;\n" +
"            start[2]= 0;\n" +
"            s= args.get(\"offset\");\n" +
"            if ( s==null ) return \"periodic field needs offset\";\n" +
"            offset= Integer.parseInt( s );\n" +
"            s= args.get(\"period\");\n" +
"            if ( s==null ) return \"periodic field needs period\";\n" +
"            if ( !s.startsWith(\"P\") ) {\n" +
"                if ( s.endsWith(\"D\") ) {\n" +
"                    throw new IllegalArgumentException(\"periodic unit for day is d, not D\");\n" +
"                } if ( s.endsWith(\"d\")  ) {\n" +
"                    s= \"P\"+s.toUpperCase(); // TODO: this only supports d,H,M,S\n" +
"                } else {\n" +
"                    s= \"PT\" + s.toUpperCase(); \n" +
"                }\n" +
"            }";
        cc.javaEditorPane.setText(src);
        
        JDialog dia= new JDialog();
        dia.setContentPane( cc );
        dia.pack();
        dia.setVisible(true);
        
        
    }
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JPanel jPanel3;
    private javax.swing.JPanel jPanel4;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JScrollPane jScrollPane2;
    private javax.swing.JSplitPane jSplitPane1;
    private javax.swing.JEditorPane javaEditorPane;
    private javax.swing.JEditorPane jythonEditorPane;
    // End of variables declaration//GEN-END:variables

    public void setJavaSource(String doThis) {
        javaEditorPane.setText(doThis);
    }
    
    public void setPythonSource(String doThis) {
        jythonEditorPane.setText(doThis);
    }
}