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package com.github.olaaronsson.process.internal.util;

public class SizeUtils {

	private static final String D_MILLIS = "%d millis";
	private static final String D_SECONDS_D_MILLIS = "%d seconds %d millis";
	private static final String D_MINUTES_D_SECONDS_D_MILLIS = "%d minutes %d seconds %d millis";
	private static final String D_HOURS_D_MINUTES_D_SECONDS_D_MILLIS = "%d hours %d minutes %d seconds %d millis";
	private static final String D_DAYS_D_HOURS_D_MINUTES_D_SECONDS_D_MILLIS = "%d days %d hours %d minutes %d seconds %d millis";

	private SizeUtils() {}

	public static String getFormattedMillisPrintoutFriendly(long execTimeInMillis) {
		long days = execTimeInMillis / 86400000l;
		if (days > 0) {
			execTimeInMillis = execTimeInMillis - (days * 86400000l);
		}
		long hours = execTimeInMillis / 36000000l;
		if (hours > 0) {
			execTimeInMillis = execTimeInMillis - (hours * 36000000);
		}
		long minutes = execTimeInMillis / 60000l;
		if (minutes > 0) {
			execTimeInMillis = execTimeInMillis - (minutes * 60000);
		}
		long seconds = execTimeInMillis / 1000l;
		if (seconds > 0) {
			execTimeInMillis = execTimeInMillis - (seconds * 1000);
		}

		if (days != 0) {
			return String.format(D_DAYS_D_HOURS_D_MINUTES_D_SECONDS_D_MILLIS, days, hours, minutes, seconds, execTimeInMillis);
		} else if (hours != 0) {
			return String.format(D_HOURS_D_MINUTES_D_SECONDS_D_MILLIS, hours, minutes, seconds, execTimeInMillis);
		} else if (minutes != 0) {
			return String.format(D_MINUTES_D_SECONDS_D_MILLIS, minutes, seconds, execTimeInMillis);
		} else if (seconds != 0) {
			return String.format(D_SECONDS_D_MILLIS, seconds, execTimeInMillis);
		} else {
			return String.format(D_MILLIS, execTimeInMillis);
		}
	}
}