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/*
 * Copyright (c) 2019, 2022, Oracle and/or its affiliates.
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, version 2.0, as published by the
 * Free Software Foundation.
 *
 * This program is also distributed with certain software (including but not
 * limited to OpenSSL) that is licensed under separate terms, as designated in a
 * particular file or component or in included license documentation. The
 * authors of MySQL hereby grant you an additional permission to link the
 * program and your derivative works with the separately licensed software that
 * they have included with MySQL.
 *
 * Without limiting anything contained in the foregoing, this file, which is
 * part of MySQL Connector/J, is also subject to the Universal FOSS Exception,
 * version 1.0, a copy of which can be found at
 * http://oss.oracle.com/licenses/universal-foss-exception.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License, version 2.0,
 * for more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
 */

package com.mysql.cj.protocol;

import java.time.Duration;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.OffsetTime;
import java.util.Calendar;

import com.mysql.cj.util.TimeUtil;

public class InternalTime {

    private boolean negative = false;
    private int hours = 0;
    private int minutes = 0;
    private int seconds = 0;
    private int nanos = 0;
    private int scale = 0;

    public static InternalTime from(LocalTime x) {
        return new InternalTime(x.getHour(), x.getMinute(), x.getSecond(), x.getNano(), -1);
    }

    public static InternalTime from(LocalDateTime x) {
        return new InternalTime(x.getHour(), x.getMinute(), x.getSecond(), x.getNano(), -1);
    }

    public static InternalTime from(OffsetTime x) {
        return new InternalTime(x.getHour(), x.getMinute(), x.getSecond(), x.getNano(), -1);
    }

    public static InternalTime from(Duration x) {
        Duration durationAbs = x.abs();
        long fullSeconds = durationAbs.getSeconds();
        long fullMinutes = fullSeconds / 60;
        long fullHours = fullMinutes / 60;
        InternalTime internalTime = new InternalTime((int) fullHours, (int) (fullMinutes % 60), (int) (fullSeconds % 60), durationAbs.getNano(), -1);
        internalTime.setNegative(x.isNegative());
        return internalTime;
    }

    public static InternalTime from(Calendar x, int nanos) {
        return new InternalTime(x.get(Calendar.HOUR_OF_DAY), x.get(Calendar.MINUTE), x.get(Calendar.SECOND), nanos, -1);
    }

    /**
     * Constructs a zero time
     */
    public InternalTime() {
    }

    public InternalTime(int hours, int minutes, int seconds, int nanos, int scale) {
        this.hours = hours;
        this.minutes = minutes;
        this.seconds = seconds;
        this.nanos = nanos;
        this.scale = scale;
    }

    public boolean isNegative() {
        return this.negative;
    }

    public void setNegative(boolean negative) {
        this.negative = negative;
    }

    public int getHours() {
        return this.hours;
    }

    public void setHours(int hours) {
        this.hours = hours;
    }

    public int getMinutes() {
        return this.minutes;
    }

    public void setMinutes(int minutes) {
        this.minutes = minutes;
    }

    public int getSeconds() {
        return this.seconds;
    }

    public void setSeconds(int seconds) {
        this.seconds = seconds;
    }

    public int getNanos() {
        return this.nanos;
    }

    public void setNanos(int nanos) {
        this.nanos = nanos;
    }

    public boolean isZero() {
        return this.hours == 0 && this.minutes == 0 && this.seconds == 0 && this.nanos == 0;
    }

    public int getScale() {
        return this.scale;
    }

    public void setScale(int scale) {
        this.scale = scale;
    }

    @Override
    public String toString() {
        if (this.nanos > 0) {
            return String.format("%02d:%02d:%02d.%s", this.hours, this.minutes, this.seconds, TimeUtil.formatNanos(this.nanos, this.scale, false));
        }
        return String.format("%02d:%02d:%02d", this.hours, this.minutes, this.seconds);
    }
}