package chromesthesia2;

import painter.SPainter;
import javax.swing.*;
import java.util.Scanner;

public class Chromesthesia {

    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();
    }

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

    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

    }

    private static Pitch[] establishPitches(SPainter painter) {
        Pitch[] pitches = new Pitch[21];
        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;
        Pitch pitchMiddleF = new Pitch("F", painter);
        pitches[9] = pitchMiddleF;
        Pitch pitchLowF = new Pitch("F,", painter);
        pitches[10] = pitchLowF;
        Pitch pitchHighF = new Pitch("f", painter);
        pitches[11] = pitchHighF;
        Pitch pitchMiddleG = new Pitch("G", painter);
        pitches[12] = pitchMiddleG;
        Pitch pitchLowG = new Pitch("G,", painter);
        pitches[13] = pitchLowG;
        Pitch pitchHighG = new Pitch("g", painter);
        pitches[14] = pitchHighG;
        Pitch pitchMiddleA = new Pitch("A", painter);
        pitches[15] = pitchMiddleA;
        Pitch pitchLowA = new Pitch("A,", painter);
        pitches[16] = pitchLowA;
        Pitch pitchHighA = new Pitch("a", painter);
        pitches[17] = pitchHighA;
        Pitch pitchMiddleB = new Pitch("B", painter);
        pitches[18] = pitchMiddleB;
        Pitch pitchLowB = new Pitch("B,", painter);
        pitches[19] = pitchLowB;
        Pitch pitchHighB = new Pitch("b", painter);
        pitches[20] = pitchHighB;

        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();
            String pitchName;
            String duration = "";
            if (token.indexOf(",") == 1) {
                pitchName = token.substring(0,1);
                duration = token.substring(2);
            } else if ( token.length() == 2) {
                pitchName = token.substring(0,1);
                duration = token.substring(1);
            } else {
                pitchName = token.substring(0,1);
            }
            if (duration.length() == 0 ) { duration = "1"; }
            Pitch pitch = find(pitchName, pitches);
            pitch.play(duration);
        }

    }


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

    private static void initialization() {
        jackson = new SPainter("Chromesthesia", 500, 500);
        jackson.setVisible(false);
        jackson.setBrushWidth(7);
        pitches = establishPitches(jackson);
        display(pitches);
    }

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

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