/* 
* This program interprets melodic lines given in ABC notation as a* chromesthete might. 
* 
* A Pitch class will be defined, and will take center stage in the* processing. 
* 
* Interpreting a melody in ABC notation will amount to flashing* colored rectangles for prescribed durations, while sounding 
* the pitch! The color of the rectangle will correspond to pitch 
* class. The duration will correspond to the duration of the note. 
* 
* For this first version of the program, the duration will be held 
*constant at 1 beat.** Three sorts of images will appear on the screen, the chromesthetic 
* output box, a text input box, and an error message box. Simplicity 
* of design is rendered by permitting only one box to be on the screen 
* at a time. 
* 
* ABC represents notes in a manner consistent with these examples: 
* C, D, E, C D E c d e 
* 
* Google ABC music representation if you would like to know more about it. 
*/

package chromesthesia0;

import java.util.Scanner;
import javax.swing.JOptionPane;
import javax.swing.SwingUtilities;
import painter.SPainter;

public class Chromesthesia {
    // INFRASTRUCTURE FOR THE PROGRAM -- LAUNCHING A "GRAPHICS" THREAD

    public static void main(String[] args){
        SwingUtilities.invokeLater(new ThreadForGUI());
    }

    private static class ThreadForGUI implements Runnable{
        @Override
        public void run(){
            new Chromesthesia();
        }
    }

    public Chromesthesia(){
        interpreter();
    }

    // FEATURED VARIABLES

    private static SPainter miro;
    private static Pitch[] pitches;

    // THE INTERPRETER

    public static void interpreter(){
        initialization(); // miro and pitches
        while ( true ){
            String input = getInput();
            if (input.equalsIgnoreCase("EXIT")){
                break;
            } else {
                try {
                    playMelody(input,pitches);
                } catch (Exception ex){
                    showErrorMessage(ex.toString());
                }
            }
        }
        cleanup(); // miro has to go
    }

    // METHODS PERTAINING TO THE CHROMESTHETIC PITCHES
    private static Pitch[] establishPitches(SPainter painter) {
        Pitch[] pitches = new Pitch[9];
        Pitch pitchMiddleC = new Pitch("C",painter);
        pitches[0] = pitchMiddleC;Pitch pitchLowC = new Pitch("C,",painter);
        pitches[1] = pitchLowC;Pitch pitchHighC = new Pitch("c",painter);
        pitches[2] = pitchHighC;Pitch pitchMiddleD = new Pitch("D",painter);
        pitches[3] = pitchMiddleD;Pitch pitchLowD = new Pitch("D,",painter);
        pitches[4] = pitchLowD;Pitch pitchHighD = new Pitch("d",painter);
        pitches[5] = pitchHighD;Pitch pitchMiddleE = new Pitch("E",painter);
        pitches[6] = pitchMiddleE;Pitch pitchLowE = new Pitch("E,",painter);
        pitches[7] = pitchLowE;Pitch pitchHighE = new Pitch("e",painter);
        pitches[8] = pitchHighE;
        return pitches;
    }

    private static Pitch find(String token, Pitch[] pitches) throws Exception {
        for ( int i = 0; i < pitches.length; i = i + 1 ) {
            Pitch pitch = pitches[i];
            if (pitch.abcName().equals(token) ) {
                return pitch;
            }
        }throw new Exception("### PITCH " + token + " NOT FOUND");
    }

    private static void display(Pitch[] pitches){
        for (int i = 0; i < pitches.length; i = i + 1 ){
            System.out.println(pitches[i].toString());
        }
    }

    private static void playMelody(String input, Pitch[] pitches) throws Exception {
        Scanner scanner = new Scanner(input);
        while ( scanner.hasNext() ) {
            String token = scanner.next();
            Pitch pitch = find(token,pitches);
            pitch.play("1");
        }
    }

    // INITIALIZATION, CLEANUP, GETTING INPUT, ERROR MESSAGING

    static private void showErrorMessage(String message) {
        miro.setVisible(false);
        JOptionPane.showMessageDialog(null, message);
    }

    private static void initialization() {
        // ESTABLISH THE PAINTER AND GIVE IT A SUBSTANTIAL BRUSH WIDTH
        miro = new SPainter("Chromesthesia",500,500);
        miro.setVisible(false);
        miro.setBrushWidth(7);

        // ESTABLISH THE CHROMESTITIC PITCH CLASS OBJECTS
        pitches = establishPitches(miro);
        display(pitches);
    }

    private static String getInput() {
        miro.setVisible(false);
        String label = "Please enter a melody in ABC notation, or EXIT ...     ";
        String input = JOptionPane.showInputDialog(null,label);
        miro.setVisible(true);
        if ( input == null ) { input = ""; }
        return input;
    }

    static private void cleanup(){
        System.exit(0);
    }
}