package controlP5;

/**
 * controlP5 is a processing gui library.
 * 
 * 2006-2015 by Andreas Schlegel
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1
 * of the License, or (at your option) any later version.
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General
 * Public License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307 USA
 * 
 * @author Andreas Schlegel (http://www.sojamo.de)
 * @modified ##date##
 * @version ##version##
 * 
 */

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import processing.core.PApplet;
import processing.core.PGraphics;

/**
 * A matrix is a 2d array with a pointer that traverses through the matrix in a timed interval. if
 * an item of a matrix-column is active, the x and y position of the corresponding cell will trigger
 * an event and notify the program. see the ControlP5matrix example for more information.
 * 
 * @example controllers/ControlP5matrix
 */
public class Matrix extends Controller< Matrix > {

	protected int cnt;
	protected int[][] _myCells;
	protected int stepX;
	protected int stepY;
	protected int cellX;
	protected int cellY;
	protected boolean isPressed;
	protected int _myCellX;
	protected int _myCellY;
	protected int sum;
	protected int _myInterval = 100;
	protected int currentX = -1;
	protected int currentY = -1;
	protected int _myMode = SINGLE_ROW;
	private Thread t;
	protected int gapX = 1;
	protected int gapY = 1;
	private Object _myPlug;
	private String _myPlugName;
	private boolean playing = true;
	private int bg = 0x00000000;

	/**
	 * Convenience constructor to extend Matrix.
	 * 
	 * @example use/ControlP5extendController
	 * @param theControlP5
	 * @param theName
	 */
	public Matrix( ControlP5 theControlP5 , String theName ) {
		this( theControlP5 , theControlP5.getDefaultTab( ) , theName , 10 , 10 , 0 , 0 , 100 , 100 );
		theControlP5.register( theControlP5.papplet , theName , this );
	}

	public Matrix( ControlP5 theControlP5 , ControllerGroup< ? > theParent , String theName , int theCellX , int theCellY , int theX , int theY , int theWidth , int theHeight ) {
		super( theControlP5 , theParent , theName , theX , theY , theWidth , theHeight );
		_myInterval = 100;
		setGrid( theCellX , theCellY );

		_myPlug = cp5.papplet;
		_myPlugName = getName( );
		_myCaptionLabel.align( ControlP5.LEFT , ControlP5.BOTTOM_OUTSIDE );
		_myCaptionLabel.setPadding( 0 , 4 );
		runThread( );
	}

	public Matrix setGrid( int theCellX , int theCellY ) {
		_myCellX = theCellX;
		_myCellY = theCellY;
		sum = _myCellX * _myCellY;
		stepX = getWidth( ) / _myCellX;
		stepY = getHeight( ) / _myCellY;
		_myCells = new int[ _myCellX ][ _myCellY ];
		for ( int x = 0 ; x < _myCellX ; x++ ) {
			for ( int y = 0 ; y < _myCellY ; y++ ) {
				_myCells[ x ][ y ] = 0;
			}
		}
		return this;
	}

	/**
	 * set the speed of intervals in millis iterating through the matrix.
	 * 
	 * @param theInterval int
	 * @return Matrix
	 */

	public Matrix setInterval( int theInterval ) {
		_myInterval = theInterval;
		return this;
	}

	public int getInterval( ) {
		return _myInterval;
	}

	@ControlP5.Invisible public Matrix updateInternalEvents( PApplet theApplet ) {
		setIsInside( inside( ) );

		if ( getIsInside( ) ) {
			if ( isPressed ) {
				int tX = ( int ) ( ( theApplet.mouseX - x( position ) ) / stepX );
				int tY = ( int ) ( ( theApplet.mouseY - y( position ) ) / stepY );

				if ( tX != currentX || tY != currentY ) {
					tX = PApplet.min( PApplet.max( 0 , tX ) , _myCellX );
					tY = PApplet.min( PApplet.max( 0 , tY ) , _myCellY );
					boolean isMarkerActive = ( _myCells[ tX ][ tY ] == 1 ) ? true : false;
					switch ( _myMode ) {
					default:
					case ( SINGLE_COLUMN ):
						for ( int i = 0 ; i < _myCellY ; i++ ) {
							_myCells[ tX ][ i ] = 0;
						}
						_myCells[ tX ][ tY ] = ( !isMarkerActive ) ? 1 : _myCells[ tX ][ tY ];
						break;
					case ( SINGLE_ROW ):
						for ( int i = 0 ; i < _myCellY ; i++ ) {
							_myCells[ tX ][ i ] = 0;
						}
						_myCells[ tX ][ tY ] = ( !isMarkerActive ) ? 1 : _myCells[ tX ][ tY ];
						break;
					case ( MULTIPLES ):
						_myCells[ tX ][ tY ] = ( _myCells[ tX ][ tY ] == 1 ) ? 0 : 1;
						break;
					}
					currentX = tX;
					currentY = tY;
				}
			}
		}
		return this;
	}

	protected void onEnter( ) {
		isActive = true;
	}

	protected void onLeave( ) {
		isActive = false;
	}

	@ControlP5.Invisible public void mousePressed( ) {
		isActive = getIsInside( );
		if ( getIsInside( ) ) {
			isPressed = true;
		}
	}

	protected void mouseReleasedOutside( ) {
		mouseReleased( );
	}

	@ControlP5.Invisible public void mouseReleased( ) {
		if ( isActive ) {
			isActive = false;
		}
		isPressed = false;
		currentX = -1;
		currentY = -1;
	}

	@Override public Matrix setValue( float theValue ) {
		_myValue = theValue;
		broadcast( FLOAT );
		return this;
	}

	public Matrix play( ) {
		playing = true;
		return this;
	}

	public boolean isPlaying( ) {
		return playing;
	}

	public Matrix pause( ) {
		playing = false;
		return this;
	}

	public Matrix stop( ) {
		playing = false;
		cnt = 0;
		return this;
	}

	public Matrix trigger( int theColumn ) {

		if ( theColumn < 0 || theColumn >= _myCells.length ) {
			return this;
		}

		for ( int i = 0 ; i < _myCellY ; i++ ) {
			if ( _myCells[ theColumn ][ i ] == 1 ) {
				_myValue = 0;
				_myValue = ( theColumn << 0 ) + ( i << 8 );
				setValue( _myValue );
				/* TODO remove printStack and replace with Logger */
				try {
					Method method = _myPlug.getClass( ).getMethod( _myPlugName , int.class , int.class );
					method.setAccessible( true );
					method.invoke( _myPlug , theColumn , i );
				} catch ( SecurityException ex ) {
					ex.printStackTrace( );
				} catch ( NoSuchMethodException ex ) {
					//ex.printStackTrace( );
				} catch ( IllegalArgumentException ex ) {
					ex.printStackTrace( );
				} catch ( IllegalAccessException ex ) {
					ex.printStackTrace( );
				} catch ( InvocationTargetException ex ) {
					ex.printStackTrace( );
				}
			}
		}
		return this;
	}

	@Override public Matrix update( ) {
		return setValue( _myValue );
	}

	public Matrix setGap( int theX , int theY ) {
		gapX = theX;
		gapY = theY;
		return this;
	}

	public Matrix plugTo( Object theObject ) {
		_myPlug = theObject;
		return this;
	}

	public Matrix plugTo( Object theObject , String thePlugName ) {
		_myPlug = theObject;
		_myPlugName = thePlugName;
		return this;
	}

	/**
	 * set the state of a particular cell inside a matrix. use true or false for parameter theValue
	 * 
	 * @param theX
	 * @param theY
	 * @param theValue
	 * @return Matrix
	 */
	public Matrix set( int theX , int theY , boolean theValue ) {
		_myCells[ theX ][ theY ] = ( theValue == true ) ? 1 : 0;
		return this;
	}

	public boolean get( int theX , int theY ) {
		return _myCells[ theX ][ theY ] == 1 ? true : false;
	}

	public Matrix clear( ) {
		for ( int x = 0 ; x < _myCells.length ; x++ ) {
			for ( int y = 0 ; y < _myCells[ x ].length ; y++ ) {
				_myCells[ x ][ y ] = 0;
			}
		}
		return this;
	}

	public static int getX( int thePosition ) {
		return ( ( thePosition >> 0 ) & 0xff );
	}

	public static int getY( int thePosition ) {
		return ( ( thePosition >> 8 ) & 0xff );
	}

	public static int getX( float thePosition ) {
		return ( ( ( int ) thePosition >> 0 ) & 0xff );
	}

	public static int getY( float thePosition ) {
		return ( ( ( int ) thePosition >> 8 ) & 0xff );
	}

	public Matrix setCells( int[][] theCells ) {
		setGrid( theCells.length , theCells[ 0 ].length );
		_myCells = theCells;
		return this;
	}

	public int[][] getCells( ) {
		return _myCells;
	}

	private void triggerEventFromThread( ) {
		if ( playing ) {
			cnt += 1;
			cnt %= _myCellX;
			trigger( cnt );
		}
	}

	private void runThread( ) {
		if ( t == null ) {
			t = new Thread( getName( ) ) {

				public void run( ) {
					while ( true ) {
						triggerEventFromThread( );
						try {
							sleep( _myInterval );
						} catch ( InterruptedException e ) {
							// throw new RuntimeException(e);
						}
					}
				}
			};
			t.start( );
		}
	}

	@Override public void remove( ) {
		if ( t != null ) {
			t.interrupt( );
		}
		super.remove( );
	}

	/**
	 * use setMode to change the cell-activation which by default is ControlP5.SINGLE_ROW, 1 active
	 * cell per row, but can be changed to ControlP5.SINGLE_COLUMN or ControlP5.MULTIPLES
	 * 
	 * @param theMode return Matrix
	 */
	public Matrix setMode( int theMode ) {
		_myMode = theMode;
		return this;
	}

	public int getMode( ) {
		return _myMode;
	}

	public Matrix setBackground( int c ) {
		bg = 0x00000000;
		if ( ( c >> 24 & 0xff ) > 0 ) {
			bg = ( c >> 24 ) << 24 | ( c >> 16 ) << 16 | ( c >> 8 ) << 8 | ( c >> 0 ) << 0;
		}
		return this;
	}

	@Override @ControlP5.Invisible public Matrix updateDisplayMode( int theMode ) {
		_myDisplayMode = theMode;
		switch ( theMode ) {
		case ( DEFAULT ):
			_myControllerView = new MatrixView( );
			break;
		case ( IMAGE ):
		case ( SPRITE ):
		case ( CUSTOM ):
		default:
			break;
		}
		return this;
	}

	class MatrixView implements ControllerView< Matrix > {

		public void display( PGraphics theGraphics , Matrix theController ) {
			theGraphics.noStroke( );
			theGraphics.fill( bg );
			theGraphics.rect( 0 , 0 , getWidth( ) , getHeight( ) );

			float gx = gapX / 2;
			float gy = gapY / 2;
			for ( int x = 0 ; x < _myCellX ; x++ ) {
				for ( int y = 0 ; y < _myCellY ; y++ ) {

					theGraphics.fill( _myCells[ x ][ y ] == 1 ? color.getActive( ) : color.getBackground( ) );
					theGraphics.rect( x * stepX + gx , y * stepY + gy , stepX - gapX , stepY - gapY );
				}
			}
			if ( isInside( ) ) {
				// TODO
				// int x = (int) ((theGraphics.mouseX - position.x) / stepX);
				// int y = (int) ((theGraphics.mouseY - position.y) / stepY);
				// if (x >= 0 && x < _myCellX && y >= 0 && y < _myCellY) {
				// theGraphics.fill(_myCells[x][y] == 1 ? color.getActive() :
				// color.getForeground());
				// theGraphics.rect(x * stepX, y * stepY, stepX - gapX, stepY - gapY);
				// }
			}
			theGraphics.fill( color.getActive( ) );
			theGraphics.rect( cnt * stepX , 0 , 1 , getHeight( ) - gapY );
			if ( isLabelVisible ) {
				_myCaptionLabel.draw( theGraphics , 0 , 0 , theController );
			}
		}
	}
}