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package io.yawp.commons.utils;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class DateUtils {

    public static final String TIMESTAMP_FORMAT = "yyyy/MM/dd HH:mm:ss";

    public static final String DATE_FORMAT = "yyyy/MM/dd";

    private DateUtils() {}

    public static String fromTimestamp(Date timestamp) {
        return format(timestamp, TIMESTAMP_FORMAT);
    }

    public static Date toTimestamp(String source) {
        return parse(source, TIMESTAMP_FORMAT);
    }

    public static String fromDate(Date timestamp) {
        return format(timestamp, DATE_FORMAT);
    }

    public static Date toDate(String source) {
        return parse(source, DATE_FORMAT);
    }

    private static String format(Date timestamp, String format) {
        SimpleDateFormat formatter = new SimpleDateFormat(format);
        return formatter.format(timestamp);
    }

    private static Date parse(String source, String format) {
        SimpleDateFormat parser = new SimpleDateFormat(format);
        try {
            return parser.parse(source);
        } catch (ParseException e) {
            throw new RuntimeException(e);
        }
    }

}