Chords/src/main/java/moe/nekojimi/chords/Format.java

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package moe.nekojimi.chords;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 *
 * @author jimj316
 */
class Format
{

    private static final Pattern SIZE_PATTERN = Pattern.compile("\\b([0-9]+\\.?[0-9]*)([kkMmGg])i?[bB]\\b");
    private static final Pattern BITRATE_PATTERN = Pattern.compile("\\b([0-9]+)k(b(ps?))?\\b");

    private final String code;
    private final String extension;
    private final String resolution;
    private final String note;

    public Format(String code, String extension, String resolution, String note)
    {
        this.code = code;
        this.extension = extension;
        this.resolution = resolution;
        this.note = note;
    }

    public boolean isAudioOnly()
    {
        return resolution.trim().toLowerCase().contains("audio only");
    }

    public long getSize()
    {
        // try to find eg. "1.32MiB" inside note
        Matcher matcher = SIZE_PATTERN.matcher(note);
        if (matcher.find())
        {
            double value = Double.parseDouble(matcher.group(1));
            String mag = matcher.group(2).toUpperCase();
            long mult = 1;
            switch (mag)
            {
                case "K":
                    mult = 1024;
                    break;
                case "M":
                    mult = 1024 * 1024;
                    break;
                case "G":
                    mult = 1024 * 1024 * 1024;
                    break;
            }
            value *= mult;
            return (long) value;

        }
        return -1;
    }

    public int getBitrate()
    {
        // try to find eg. "51k" inside note
        Matcher matcher = BITRATE_PATTERN.matcher(note);
        if (matcher.find())
        {
            return Integer.parseInt(matcher.group(1)) * 1000;
        }
        return -1;
    }

    public String getCode()
    {
        return code;
    }

    public String getExtension()
    {
        return extension;
    }

    public String getResolution()
    {
        return resolution;
    }

    public String getNote()
    {
        return note;
    }

    @Override
    public String toString()
    {
        return "Format{" + "code=" + code + ", extension=" + extension + ", resolution=" + resolution + ", note=" + note + '}';
    }

}