<?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName

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/**

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* WPCOM_JSON_API_Date class.

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*

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* @package automattic/jetpack

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*/

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if ( ! defined( 'ABSPATH' ) ) {

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exit( 0 );

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}

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/**

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* Base class for WPCOM_JSON_API_Date.

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*/

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class WPCOM_JSON_API_Date {

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/**

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* Returns ISO 8601 formatted datetime: 2011-12-08T01:15:36-08:00

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*

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* @param string $date_gmt GMT datetime string.

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* @param string $date Optional. Used to calculate the offset from GMT.

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*

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* @return string

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*/

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public static function format_date( $date_gmt, $date = null ) {

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$offset = null;

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$timestamp_gmt = strtotime( "$date_gmt+0000" );

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if ( null === $date ) {

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$timestamp = $timestamp_gmt;

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$west = 0;

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$minutes = 0;

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$hours = 0;

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} else {

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$date_time = date_create( "$date+0000" );

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if ( $date_time ) {

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$timestamp = date_format( $date_time, 'U' );

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} else {

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$timestamp = 0;

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}

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// "0000-00-00 00:00:00" == -62169984000

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if ( -62169984000 === $timestamp_gmt ) {

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// WordPress sets post_date=now, post_date_gmt="0000-00-00 00:00:00" for all drafts

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// WordPress sets post_modified=now, post_modified_gmt="0000-00-00 00:00:00" for new drafts.

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// Try to guess the correct offset from the blog's options.

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$timezone_string = get_option( 'timezone_string' );

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if ( $timezone_string && $date_time ) {

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$timezone = timezone_open( $timezone_string );

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if ( $timezone ) {

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$offset = $timezone->getOffset( $date_time );

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}

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} else {

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$offset = 3600 * (float) get_option( 'gmt_offset' );

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}

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} else {

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$offset = $timestamp - $timestamp_gmt;

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}

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$west = $offset < 0;

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$offset = abs( $offset );

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$hours = (int) floor( $offset / 3600 );

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$offset -= $hours * 3600;

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$minutes = (int) floor( $offset / 60 );

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}

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return (string) gmdate( 'Y-m-d\\TH:i:s', $timestamp ) . sprintf( '%s%02d:%02d', $west ? '-' : '+', $hours, $minutes );

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}

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/**

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* Returns ISO 8601 formatted duration interval: P0DT1H10M0S

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*

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* @param string $time Duration in minutes or hours.

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*

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* @return null|string

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*/

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public static function format_duration( $time ) {

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$timestamp = strtotime( $time, 0 );

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// Bail early if we don't recognize a date.

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if ( empty( $timestamp ) ) {

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return;

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}

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$days = floor( $timestamp / 86400 );

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$timestamp = $timestamp % 86400;

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$hours = floor( $timestamp / 3600 );

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$timestamp = $timestamp % 3600;

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$minutes = floor( $timestamp / 60 );

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$timestamp = $timestamp % 60;

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return (string) sprintf(

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'P%dDT%dH%dM%dS',

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$days,

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$hours,

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$minutes,

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$timestamp

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);

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}

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}

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