burrow/src/main/java/io/rudefox/burrow/InteractiveBinaryEntropyGenerator.java

package io.rudefox.burrow;

import java.util.Scanner;
import java.util.regex.Pattern;

public class InteractiveBinaryEntropyGenerator extends InteractiveEntropyGenerator {

    public InteractiveBinaryEntropyGenerator(int targetBitsOfEntropy, Scanner inputScanner, boolean ansiColorOutput) {
        super(inputScanner, ansiColorOutput, targetBitsOfEntropy, 1);
    }

    @Override
    protected String readNextEventSetString() {

        String eventSetString = "";
        Pattern eventSetPattern = Pattern.compile(String.format("[0-1]{%d}", eventsPerEventSet));

        while (!eventSetPattern.matcher(eventSetString).matches()) {
            System.out.print("Input 33 coin tosses [0-1]: ");
            eventSetString = inputScanner.next();
        }

        return eventSetString;
    }

    @Override
    protected String getEventValueFormatString(int eventIndexWithinSet) {
        return "";
    }

    @Override
    protected int toZeroBasedInteger(int eventDecimalValue) {
        return eventDecimalValue;
    }

    @Override
    protected void outputEventValuesLine(StringBuilder eventValuesLine) { }

    @Override
    protected StringBuilder getInitialBitsLine() {
        return new StringBuilder("| ");
    }

    @Override
    protected void padBitsLine(StringBuilder eventSetBitsLine, int bitIndexWithinEventSet, int bitIndexWithinEntropy) {
        if (bitIndexWithinEventSet == BITS_PER_EVENT_SET - 1)
            eventSetBitsLine.append(" |");
        else if (bitIndexWithinEventSet % BITS_PER_WORD == 0 || bitIndexWithinEventSet % BITS_PER_WORD == 6)
            eventSetBitsLine.append(styleBit(" ", bitIndexWithinEntropy, bitIndexWithinEventSet));
        else if (bitIndexWithinEventSet % BITS_PER_WORD == BITS_PER_WORD - 1)
            eventSetBitsLine.append(" | ");
    }

    @Override
    protected String getSeedWordLineFormatString() {
        return "|%-15s|%-15s|%-15s|";
    }
}