import java.awt.Font;
import java.io.File;
import java.io.IOException;
import java.util.Comparator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Scanner;
import java.util.Set;
import java.util.TreeMap;
import java.util.TreeSet;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;

/**
 *
 * @author Bill Kraynek
 */
public class CountWordsWithMapsAndEntrys {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws IOException {
        Scanner fileScanner = new Scanner(new File("src/CountWordsWithMapsAndEntrys.java"));
        fileScanner.useDelimiter("[^A-Za-z]+");
        Map<String, Integer> words = new TreeMap<>(new IgnoreCaseComparator());
        int maxWordLength = 30;
        while (fileScanner.hasNext()) {
            String word = fileScanner.next();
            if (!words.keySet().contains(word)) {
                words.put(word, 0);
            }// end if
            words.put(word, words.get(word) + 1);
        }// end while
        displayMap(words, maxWordLength);
        Set<Entry<String, Integer>> wordsEntrys = new TreeSet<>(new EntryCountComparator());
        wordsEntrys.addAll(words.entrySet());
        displaySet(wordsEntrys, maxWordLength);
        String[] wordsArray = words.keySet().toArray(new String[0]);
        while (true) {
            String word = (String) JOptionPane.showInputDialog(null, "Pick a Word", "Words and Counts", JOptionPane.PLAIN_MESSAGE,
                    null, wordsArray, wordsArray[0]);
            if (word == null) {
                return;
            }
            JOptionPane.showMessageDialog(null, word + " appeared " + words.get(word) + " time(s).");
        }
    }

    static void displayMap(Map<String, Integer> words, int maxWordLength) {
        String blanks = "";
        for (int i = 0; i < maxWordLength + 1; i++) {
            blanks += " ";
        }
        String out = "  Word" + blanks.substring(8) + "Count\n\n";
        for (Entry<String, Integer> entry : words.entrySet()) {
            out += entry.getKey() + blanks.substring(entry.getKey().length()) + entry.getValue() + "\n";
        }// end for
        JTextArea outArea = new JTextArea(out, 40, 35);
        outArea.setFont(new Font(Font.MONOSPACED, Font.PLAIN, 15));
        JOptionPane.showMessageDialog(null, new JScrollPane(outArea));
    }

    static void displaySet(Set<Entry<String, Integer>> wordEntrys, int maxWordLength) {
        String blanks = "";
        for (int i = 0; i < maxWordLength + 1; i++) {
            blanks += " ";
        }
        String out = "  Word" + blanks.substring(8) + "Count\n\n";
        for (Entry<String, Integer> entry : wordEntrys) {
            out += entry.getKey() + blanks.substring(entry.getKey().length()) + entry.getValue() + "\n";
        }// end for
        JTextArea outArea = new JTextArea(out, 40, 35);
        outArea.setFont(new Font(Font.MONOSPACED, Font.PLAIN, 15));
        JOptionPane.showMessageDialog(null, new JScrollPane(outArea));
    }

    static class IgnoreCaseComparator implements Comparator<String> {

        public int compare(String lhs, String rhs) {
            return lhs.compareToIgnoreCase(rhs);
        }
    }

    static class EntryCountComparator implements Comparator<Entry<String, Integer>> {

        public int compare(Entry<String, Integer> lhs, Entry<String, Integer> rhs) {
            int diff = rhs.getValue() - lhs.getValue();
            if (diff != 0) {
                return diff;
            }
            return lhs.getKey().compareToIgnoreCase(rhs.getKey());
        }
    }
}