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<?php
namespace Yoast\WP\SEO\Actions;
use Yoast\WP\SEO\Helpers\User_Helper;
/**
* Class Alert_Dismissal_Action.
*/
class Alert_Dismissal_Action {
public const USER_META_KEY = '_yoast_alerts_dismissed';
/**
* Holds the user helper instance.
*
* @var User_Helper
*/
protected $user;
/**
* Constructs Alert_Dismissal_Action.
*
* @param User_Helper $user User helper.
*/
public function __construct( User_Helper $user ) {
$this->user = $user;
}
/**
* Dismisses an alert.
*
* @param string $alert_identifier Alert identifier.
*
* @return bool Whether the dismiss was successful or not.
*/
public function dismiss( $alert_identifier ) {
$user_id = $this->user->get_current_user_id();
if ( $user_id === 0 ) {
return false;
}
if ( $this->is_allowed( $alert_identifier ) === false ) {
return false;
}
$dismissed_alerts = $this->get_dismissed_alerts( $user_id );
if ( $dismissed_alerts === false ) {
return false;
}
if ( \array_key_exists( $alert_identifier, $dismissed_alerts ) === true ) {
// The alert is already dismissed.
return true;
}
// Add this alert to the dismissed alerts.
$dismissed_alerts[ $alert_identifier ] = true;
// Save.
return $this->user->update_meta( $user_id, static::USER_META_KEY, $dismissed_alerts ) !== false;
}
/**
* Resets an alert.
*
* @param string $alert_identifier Alert identifier.
*
* @return bool Whether the reset was successful or not.
*/
public function reset( $alert_identifier ) {
$user_id = $this->user->get_current_user_id();
if ( $user_id === 0 ) {
return false;
}
if ( $this->is_allowed( $alert_identifier ) === false ) {
return false;
}
$dismissed_alerts = $this->get_dismissed_alerts( $user_id );
if ( $dismissed_alerts === false ) {
return false;
}
$amount_of_dismissed_alerts = \count( $dismissed_alerts );
if ( $amount_of_dismissed_alerts === 0 ) {
// No alerts: nothing to reset.
return true;
}
if ( \array_key_exists( $alert_identifier, $dismissed_alerts ) === false ) {
// Alert not found: nothing to reset.
return true;
}
if ( $amount_of_dismissed_alerts === 1 ) {
// The 1 remaining dismissed alert is the alert to reset: delete the alerts user meta row.
return $this->user->delete_meta( $user_id, static::USER_META_KEY, $dismissed_alerts );
}
// Remove this alert from the dismissed alerts.
unset( $dismissed_alerts[ $alert_identifier ] );
// Save.
return $this->user->update_meta( $user_id, static::USER_META_KEY, $dismissed_alerts ) !== false;
}
/**
* Returns if an alert is dismissed or not.
*
* @param string $alert_identifier Alert identifier.
*
* @return bool Whether the alert has been dismissed.
*/
public function is_dismissed( $alert_identifier ) {
$user_id = $this->user->get_current_user_id();
if ( $user_id === 0 ) {
return false;
}
if ( $this->is_allowed( $alert_identifier ) === false ) {
return false;
}
$dismissed_alerts = $this->get_dismissed_alerts( $user_id );
if ( $dismissed_alerts === false ) {
return false;
}
return \array_key_exists( $alert_identifier, $dismissed_alerts );
}
/**
* Returns an object with all alerts dismissed by current user.
*
* @return array|false An array with the keys of all Alerts that have been dismissed
* by the current user or `false`.
*/
public function all_dismissed() {
$user_id = $this->user->get_current_user_id();
if ( $user_id === 0 ) {
return false;
}
$dismissed_alerts = $this->get_dismissed_alerts( $user_id );
if ( $dismissed_alerts === false ) {
return false;
}
return $dismissed_alerts;
}
/**
* Returns if an alert is allowed or not.
*
* @param string $alert_identifier Alert identifier.
*
* @return bool Whether the alert is allowed.
*/
public function is_allowed( $alert_identifier ) {
return \in_array( $alert_identifier, $this->get_allowed_dismissable_alerts(), true );
}
/**
* Retrieves the dismissed alerts.
*
* @param int $user_id User ID.
*
* @return string[]|false The dismissed alerts. False for an invalid $user_id.
*/
protected function get_dismissed_alerts( $user_id ) {
$dismissed_alerts = $this->user->get_meta( $user_id, static::USER_META_KEY, true );
if ( $dismissed_alerts === false ) {
// Invalid user ID.
return false;
}
if ( $dismissed_alerts === '' ) {
/*
* When no database row exists yet, an empty string is returned because of the `single` parameter.
* We do want a single result returned, but the default should be an empty array instead.
*/
return [];
}
return $dismissed_alerts;
}
/**
* Retrieves the allowed dismissable alerts.
*
* @return string[] The allowed dismissable alerts.
*/
protected function get_allowed_dismissable_alerts() {
/**
* Filter: 'wpseo_allowed_dismissable_alerts' - List of allowed dismissable alerts.
*
* @param string[] $allowed_dismissable_alerts Allowed dismissable alerts list.
*/
$allowed_dismissable_alerts = \apply_filters( 'wpseo_allowed_dismissable_alerts', [] );
if ( \is_array( $allowed_dismissable_alerts ) === false ) {
return [];
}
// Only allow strings.
$allowed_dismissable_alerts = \array_filter( $allowed_dismissable_alerts, 'is_string' );
// Filter unique and reorder indices.
$allowed_dismissable_alerts = \array_values( \array_unique( $allowed_dismissable_alerts ) );
return $allowed_dismissable_alerts;
}
}