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<?php
namespace iThemesSecurity\Ban_Hosts;
final class Cursor {
/** @var \DateTimeImmutable */
private $last_date;
/** @var int */
private $last_id;
/** @var int */
private $last_count;
/**
* Cursor constructor.
*
* @param \DateTimeImmutable $last_date
* @param int $last_id
* @param int $last_count
*/
public function __construct( \DateTimeImmutable $last_date = null, $last_id = 0, $last_count = 0 ) {
$this->last_date = $last_date;
$this->last_id = $last_id;
$this->last_count = $last_count;
}
/**
* Parses a formatted value into a cursor.
*
* @param string $formatted
*
* @return static
*/
public static function parse( $formatted ) {
$parts = explode( '-', $formatted );
if ( count( $parts ) !== 3 ) {
throw new Malformed_Cursor( esc_html__( 'Cursor definition for repository is malformed.', 'better-wp-security' ) );
}
list( $last_date, $last_id, $last_count ) = $parts;
return new static(
$last_date ? new \DateTimeImmutable( "@{$last_date}" ) : null,
(int) $last_id,
(int) $last_count
);
}
/**
* Creates a new cursor from a results array.
*
* @param array $results
*
* @return static
*/
public static function from_results( array $results ) {
$last = \ITSEC_Lib::array_key_last( $results );
if ( $last !== null ) {
$last_id = $results[ $last ]->get_id();
$date = $results[ $last ]->get_created_at();
} else {
$last_id = 0;
$date = null;
}
return new static( $date, $last_id, count( $results ) );
}
/**
* Gets the date results must be before.
*
* @return \DateTimeImmutable|null
*/
public function get_last_date() {
return $this->last_date;
}
/**
* Gets the id results must be before.
*
* @return int
*/
public function get_last_id() {
return $this->last_id;
}
/**
* Gets the count of results from the previous page.
*
* @return int
*/
public function get_last_count() {
return $this->last_count;
}
/**
* Converts the cursor to a string.
*
* @return string
*/
public function __toString() {
return implode( '-', [ $this->get_last_date()->getTimestamp(), $this->get_last_id(), $this->get_last_count() ] );
}
}
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