owncloud/core

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lib/private/DateTimeFormatter.php

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<?php
/**
 * @author Joas Schilling <coding@schilljs.com>
 * @author Morris Jobke <hey@morrisjobke.de>
 * @author Thomas Müller <thomas.mueller@tmit.eu>
 *
 * @copyright Copyright (c) 2018, ownCloud GmbH
 * @license AGPL-3.0
 *
 * This code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License, version 3,
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 *
 */

namespace OC;

class DateTimeFormatter implements \OCP\IDateTimeFormatter {
    /** @var \DateTimeZone */
    protected $defaultTimeZone;

    /** @var \OCP\IL10N */
    protected $defaultL10N;

    /**
     * Constructor
     *
     * @param \DateTimeZone $defaultTimeZone Set the timezone for the format
     * @param \OCP\IL10N $defaultL10N Set the language for the format
     */
    public function __construct(\DateTimeZone $defaultTimeZone, \OCP\IL10N $defaultL10N) {
        $this->defaultTimeZone = $defaultTimeZone;
        $this->defaultL10N = $defaultL10N;
    }

    /**
     * Get TimeZone to use
     *
     * @param \DateTimeZone $timeZone    The timezone to use
     * @return \DateTimeZone        The timezone to use, falling back to the current user's timezone
     */
    protected function getTimeZone($timeZone = null) {
        if ($timeZone === null) {
            $timeZone = $this->defaultTimeZone;
        }

        return $timeZone;
    }

    /**
     * Get \OCP\IL10N to use
     *
     * @param \OCP\IL10N $l    The locale to use
     * @return \OCP\IL10N        The locale to use, falling back to the current user's locale
     */
    protected function getLocale($l = null) {
        if ($l === null) {
            $l = $this->defaultL10N;
        }

        return $l;
    }

    /**
     * Generates a DateTime object with the given timestamp and TimeZone
     *
     * @param mixed $timestamp
     * @param \DateTimeZone $timeZone    The timezone to use
     * @return \DateTime
     */
    protected function getDateTime($timestamp, \DateTimeZone $timeZone = null) {
        if ($timestamp === null) {
            return new \DateTime('now', $timeZone);
        } elseif (!$timestamp instanceof \DateTime) {
            $dateTime = new \DateTime('now', $timeZone);
            $dateTime->setTimestamp($timestamp);
            return $dateTime;
        }
        if ($timeZone) {
            $timestamp->setTimezone($timeZone);
        }
        return $timestamp;
    }

    /**
     * Formats the date of the given timestamp
     *
     * @param int|\DateTime    $timestamp    Either a Unix timestamp or DateTime object
     * @param string    $format            Either 'full', 'long', 'medium' or 'short'
     *                 full:    e.g. 'EEEE, MMMM d, y'    => 'Wednesday, August 20, 2014'
     *                 long:    e.g. 'MMMM d, y'        => 'August 20, 2014'
     *                 medium:    e.g. 'MMM d, y'            => 'Aug 20, 2014'
     *                 short:    e.g. 'M/d/yy'            => '8/20/14'
     *                 The exact format is dependent on the language
     * @param \DateTimeZone    $timeZone    The timezone to use
     * @param \OCP\IL10N    $l            The locale to use
     * @return string Formatted date string
     */
    public function formatDate($timestamp, $format = 'long', \DateTimeZone $timeZone = null, \OCP\IL10N $l = null) {
        return $this->format($timestamp, 'date', $format, $timeZone, $l);
    }

    /**
     * Formats the date of the given timestamp
     *
     * @param int|\DateTime    $timestamp    Either a Unix timestamp or DateTime object
     * @param string    $format            Either 'full', 'long', 'medium' or 'short'
     *                 full:    e.g. 'EEEE, MMMM d, y'    => 'Wednesday, August 20, 2014'
     *                 long:    e.g. 'MMMM d, y'        => 'August 20, 2014'
     *                 medium:    e.g. 'MMM d, y'            => 'Aug 20, 2014'
     *                 short:    e.g. 'M/d/yy'            => '8/20/14'
     *                 The exact format is dependent on the language
     *                     Uses 'Today', 'Yesterday' and 'Tomorrow' when applicable
     * @param \DateTimeZone    $timeZone    The timezone to use
     * @param \OCP\IL10N    $l            The locale to use
     * @return string Formatted relative date string
     */
    public function formatDateRelativeDay($timestamp, $format = 'long', \DateTimeZone $timeZone = null, \OCP\IL10N $l = null) {
        if (\substr($format, -1) !== '*') {
            $format .= '^';
        }

        return $this->format($timestamp, 'date', $format, $timeZone, $l);
    }

    /**
     * Gives the relative date of the timestamp
     * Only works for past dates
     *
     * @param int|\DateTime    $timestamp    Either a Unix timestamp or DateTime object
     * @param int|\DateTime    $baseTimestamp    Timestamp to compare $timestamp against, defaults to current time
     * @return string    Dates returned are:
     *                 <  1 month    => Today, Yesterday, n days ago
     *                 < 13 month    => last month, n months ago
     *                 >= 13 month    => last year, n years ago
     * @param \OCP\IL10N    $l            The locale to use
     * @return string Formatted date span
     */
    public function formatDateSpan($timestamp, $baseTimestamp = null, \OCP\IL10N $l = null) {
        $l = $this->getLocale($l);
        $timestamp = $this->getDateTime($timestamp);
        $timestamp->setTime(0, 0, 0);
        if ($baseTimestamp === null) {
            $baseTimestamp = \time();
        }
        $baseTimestamp = $this->getDateTime($baseTimestamp);
        $baseTimestamp->setTime(0, 0, 0);
        $dateInterval = $timestamp->diff($baseTimestamp);

        if ($dateInterval->y == 0 && $dateInterval->m == 0 && $dateInterval->d == 0) {
            return (string) $l->t('today');
        } elseif ($dateInterval->y == 0 && $dateInterval->m == 0 && $dateInterval->d == 1) {
            return (string) $l->t('yesterday');
        } elseif ($dateInterval->y == 0 && $dateInterval->m == 0) {
            return (string) $l->n('%n day ago', '%n days ago', $dateInterval->d);
        } elseif ($dateInterval->y == 0 && $dateInterval->m == 1) {
            return (string) $l->t('last month');
        } elseif ($dateInterval->y == 0) {
            return (string) $l->n('%n month ago', '%n months ago', $dateInterval->m);
        } elseif ($dateInterval->y == 1) {
            return (string) $l->t('last year');
        }
        return (string) $l->n('%n year ago', '%n years ago', $dateInterval->y);
    }

    /**
     * Formats the time of the given timestamp
     *
     * @param int|\DateTime    $timestamp    Either a Unix timestamp or DateTime object
     * @param string    $format            Either 'full', 'long', 'medium' or 'short'
     *                 full:    e.g. 'h:mm:ss a zzzz'    => '11:42:13 AM GMT+0:00'
     *                 long:    e.g. 'h:mm:ss a z'        => '11:42:13 AM GMT'
     *                 medium:    e.g. 'h:mm:ss a'        => '11:42:13 AM'
     *                 short:    e.g. 'h:mm a'            => '11:42 AM'
     *                 The exact format is dependent on the language
     * @param \DateTimeZone    $timeZone    The timezone to use
     * @param \OCP\IL10N    $l            The locale to use
     * @return string Formatted time string
     */
    public function formatTime($timestamp, $format = 'medium', \DateTimeZone $timeZone = null, \OCP\IL10N $l = null) {
        return $this->format($timestamp, 'time', $format, $timeZone, $l);
    }

    /**
     * Gives the relative past time of the timestamp
     *
     * @param int|\DateTime    $timestamp    Either a Unix timestamp or DateTime object
     * @param int|\DateTime    $baseTimestamp    Timestamp to compare $timestamp against, defaults to current time
     * @return string    Dates returned are:
     *                 < 60 sec    => seconds ago
     *                 <  1 hour    => n minutes ago
     *                 <  1 day    => n hours ago
     *                 <  1 month    => Yesterday, n days ago
     *                 < 13 month    => last month, n months ago
     *                 >= 13 month    => last year, n years ago
     * @param \OCP\IL10N    $l            The locale to use
     * @return string Formatted time span
     */
    public function formatTimeSpan($timestamp, $baseTimestamp = null, \OCP\IL10N $l = null) {
        $l = $this->getLocale($l);
        $timestamp = $this->getDateTime($timestamp);
        if ($baseTimestamp === null) {
            $baseTimestamp = \time();
        }
        $baseTimestamp = $this->getDateTime($baseTimestamp);

        $diff = $timestamp->diff($baseTimestamp);
        if ($diff->y > 0 || $diff->m > 0 || $diff->d > 0) {
            return (string) $this->formatDateSpan($timestamp, $baseTimestamp, $l);
        }

        if ($diff->h > 0) {
            return (string) $l->n('%n hour ago', '%n hours ago', $diff->h);
        } elseif ($diff->i > 0) {
            return (string) $l->n('%n minute ago', '%n minutes ago', $diff->i);
        }
        return (string) $l->t('seconds ago');
    }

    /**
     * Formats the date and time of the given timestamp
     *
     * @param int|\DateTime $timestamp    Either a Unix timestamp or DateTime object
     * @param string        $formatDate        See formatDate() for description
     * @param string        $formatTime        See formatTime() for description
     * @param \DateTimeZone    $timeZone    The timezone to use
     * @param \OCP\IL10N    $l            The locale to use
     * @return string Formatted date and time string
     */
    public function formatDateTime($timestamp, $formatDate = 'long', $formatTime = 'medium', \DateTimeZone $timeZone = null, \OCP\IL10N $l = null) {
        return $this->format($timestamp, 'datetime', $formatDate . '|' . $formatTime, $timeZone, $l);
    }

    /**
     * Formats the date and time of the given timestamp
     *
     * @param int|\DateTime $timestamp    Either a Unix timestamp or DateTime object
     * @param string    $formatDate        See formatDate() for description
     *                     Uses 'Today', 'Yesterday' and 'Tomorrow' when applicable
     * @param string    $formatTime        See formatTime() for description
     * @param \DateTimeZone    $timeZone    The timezone to use
     * @param \OCP\IL10N    $l            The locale to use
     * @return string Formatted relative date and time string
     */
    public function formatDateTimeRelativeDay($timestamp, $formatDate = 'long', $formatTime = 'medium', \DateTimeZone $timeZone = null, \OCP\IL10N $l = null) {
        if (\substr($formatDate, -1) !== '^' && \substr($formatDate, -1) !== '*') {
            $formatDate .= '^';
        }

        return $this->format($timestamp, 'datetime', $formatDate . '|' . $formatTime, $timeZone, $l);
    }

    /**
     * Formats the date and time of the given timestamp
     *
     * @param int|\DateTime $timestamp    Either a Unix timestamp or DateTime object
     * @param string        $type        One of 'date', 'datetime' or 'time'
     * @param string        $format        Format string
     * @param \DateTimeZone    $timeZone    The timezone to use
     * @param \OCP\IL10N    $l            The locale to use
     * @return string Formatted date and time string
     */
    protected function format($timestamp, $type, $format, \DateTimeZone $timeZone = null, \OCP\IL10N $l = null) {
        $l = $this->getLocale($l);
        $timeZone = $this->getTimeZone($timeZone);
        $timestamp = $this->getDateTime($timestamp, $timeZone);

        return (string) $l->l($type, $timestamp, [
            'width' => $format,
        ]);
    }
}