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<?php

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/**

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* Ad Expiration functionality.

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class Advanced_Ads_Ad_Expiration {

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const POST_STATUS = 'advanced_ads_expired';

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const POST_META = 'advanced_ads_expiration_time';

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/**

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* The current ad object.

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* @var Advanced_Ads_Ad

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private $ad;

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/**

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* Inject ad object, hook to option saving.

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* @param Advanced_Ads_Ad $ad the current ad object.

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public function __construct( Advanced_Ads_Ad $ad ) {

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$this->ad = $ad;

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add_filter( 'advanced-ads-save-options', [ $this, 'save_expiration_date' ], 10, 2 );

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}

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/**

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* Check whether this ad is expired.

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* @return bool

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public function is_ad_expired() {

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if ( $this->ad->expiry_date <= 0 || $this->ad->expiry_date > time() ) {

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return false;

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}

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// if the ad is not trashed, but has a different status than expired, transition the status.

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if ( ! in_array( $this->ad->status, [ self::POST_STATUS, 'trash' ], true ) ) {

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$this->transition_post_status();

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}

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return true;

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}

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/**

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* Extract the expiration date from the options array and save it as post_meta directly.

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* @param array $options array with all ad options.

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* @param Advanced_Ads_Ad $ad the current ad object.

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* @return array

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public function save_expiration_date( $options, Advanced_Ads_Ad $ad ) {

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if ( empty( $options['expiry_date'] ) ) {

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delete_post_meta( $ad->id, self::POST_META );

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return $options;

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}

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$datetime = ( new DateTimeImmutable() )->setTimestamp( (int) $options['expiry_date'] );

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update_post_meta( $ad->id, self::POST_META, $datetime->format( 'Y-m-d H:i:s' ) );

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return $options;

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}

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/**

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* Transition the post form previous status to self::POST_STATUS.

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* Remove kses filters before updating the post so that expiring ads don’t lose HTML or other code.

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private function transition_post_status() {

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kses_remove_filters();

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wp_update_post(

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[

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'ID' => $this->ad->id,

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'post_status' => self::POST_STATUS,

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]

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);

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kses_init_filters();

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}

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/**

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* Register custom post status for expired ads.

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public static function register_post_status() {

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register_post_status( self::POST_STATUS, [

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'label' => __( 'Expired', 'advanced-ads' ),

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'private' => true,

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] );

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}

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/**

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* Hook into wp_untrash_post_status, to revert ads that previously had the expired status to that status instead of draft.

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* @param string $new_status The new status after untrashing a post.

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* @param int $post_id The post id of the post to be untrashed.

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* @param string $previous_status The post status before trashing.

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* @return string

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public static function wp_untrash_post_status( $new_status, $post_id, $previous_status ) {

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if ( $previous_status === self::POST_STATUS ) {

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return $previous_status;

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}

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return $new_status;

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}

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}

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