<?php

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namespace WPForms\Logger;

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use Iterator;

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use Countable;

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/**

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* Class Records.

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*

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* @since 1.6.3

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*/

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class Records implements Countable, Iterator {

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/**

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* Iterator position.

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*

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* @since 1.6.3

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*

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* @var int

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*/

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private $iterator_position = 0;

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/**

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* List of log records.

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*

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* @since 1.6.3

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*

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* @var array

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*/

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private $list = [];

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/**

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* Return the current element.

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*

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* @since 1.6.3

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*

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* @return \WPForms\Logger\Record|null Return null when no items in collection.

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*/

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#[\ReturnTypeWillChange]

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public function current() {

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return $this->valid() ? $this->list[ $this->iterator_position ] : null;

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}

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/**

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* Move forward to next element.

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*

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* @since 1.6.3

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*/

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#[\ReturnTypeWillChange]

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public function next() {

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++ $this->iterator_position;

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}

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/**

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* Return the key of the current element.

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*

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* @since 1.6.3

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*

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* @return int

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*/

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#[\ReturnTypeWillChange]

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public function key() {

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return $this->iterator_position;

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}

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/**

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* Checks if current position is valid.

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*

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* @since 1.6.3

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*

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* @return bool

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*/

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#[\ReturnTypeWillChange]

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public function valid() {

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return isset( $this->list[ $this->iterator_position ] );

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}

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/**

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* Rewind the Iterator to the first element.

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*

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* @since 1.6.3

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*/

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#[\ReturnTypeWillChange]

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public function rewind() {

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$this->iterator_position = 0;

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}

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/**

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* Count number of Record in a Queue.

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*

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* @since 1.6.3

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*

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* @return int

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*/

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#[\ReturnTypeWillChange]

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public function count() {

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return count( $this->list );

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}

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/**

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* Push record to list.

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*

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* @since 1.6.3

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*

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* @param \WPForms\Logger\Record $record Record.

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*/

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#[\ReturnTypeWillChange]

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public function push( $record ) {

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if ( ! is_a( $record, '\WPForms\Logger\Record' ) ) {

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return;

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}

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$this->list[] = $record;

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}

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/**

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* Clear collection.

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*

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* @since 1.6.3

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*/

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#[\ReturnTypeWillChange]

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public function clear() {

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$this->list = [];

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$this->iterator_position = 0;

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}

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}

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