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<?php

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namespace WPForms\Emails;

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/**

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* Email Summaries main class.

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* @since 1.5.4

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class Summaries {

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/**

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* Constructor.

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* @since 1.5.4

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public function __construct() {

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$this->hooks();

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$summaries_disabled = $this->is_disabled();

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if ( $summaries_disabled && wp_next_scheduled( 'wpforms_email_summaries_cron' ) ) {

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wp_clear_scheduled_hook( 'wpforms_email_summaries_cron' );

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}

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if ( ! $summaries_disabled && ! wp_next_scheduled( 'wpforms_email_summaries_cron' ) ) {

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wp_schedule_event( $this->get_first_cron_date_gmt(), 'wpforms_email_summaries_weekly', 'wpforms_email_summaries_cron' );

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}

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}

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/**

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* Get the instance of a class and store it in itself.

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* @since 1.5.4

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public static function get_instance() {

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static $instance;

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if ( ! $instance ) {

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$instance = new self();

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}

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return $instance;

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}

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/**

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* Email Summaries hooks.

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* @since 1.5.4

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public function hooks() {

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add_filter( 'wpforms_settings_defaults', [ $this, 'disable_summaries_setting' ] );

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add_action( 'wpforms_settings_updated', [ $this, 'deregister_fetch_info_blocks_task' ] );

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// Leave early if Email Summaries are disabled in settings.

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if ( $this->is_disabled() ) {

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return;

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}

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// phpcs:ignore WordPress.WP.CronInterval.ChangeDetected

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add_filter( 'cron_schedules', [ $this, 'add_weekly_cron_schedule' ] );

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add_action( 'init', [ $this, 'preview' ] );

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add_action( 'wpforms_email_summaries_cron', [ $this, 'cron' ] );

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add_filter( 'wpforms_tasks_get_tasks', [ $this, 'register_fetch_info_blocks_task' ] );

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}

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/**

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* Check if Email Summaries are disabled in settings.

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* @since 1.5.4

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* @return bool

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protected function is_disabled(): bool {

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/**

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* Allows to modify whether Email Summaries are disabled in settings.

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* @since 1.5.4

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* @param bool $is_disabled True if Email Summaries are disabled in settings. False by default.

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return (bool) apply_filters( 'wpforms_emails_summaries_is_disabled', (bool) wpforms_setting( 'email-summaries-disable', false ) );

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}

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/**

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* Add "Disable Email Summaries" to WPForms settings.

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* @since 1.5.4

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* @param array $settings WPForms settings.

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* @return mixed

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public function disable_summaries_setting( $settings ) {

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/** This filter is documented in wpforms/src/Emails/Summaries.php */

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if ( (bool) apply_filters( 'wpforms_emails_summaries_is_disabled', false ) ) {

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return $settings;

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}

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$url = wp_nonce_url(

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add_query_arg(

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[

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'wpforms_email_template' => 'summary',

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'wpforms_email_preview' => '1',

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admin_url()

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Preview::PREVIEW_NONCE_NAME

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);

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$desc = esc_html__( 'Disable Email Summaries weekly delivery.', 'wpforms-lite' );

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if ( ! $this->is_disabled() ) {

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$desc .= ' <a href="' . $url . '" target="_blank">' . esc_html__( 'View Email Summary Example', 'wpforms-lite' ) . '</a>.';

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}

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// Get the uninstall data setting.

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$uninstall_data = $settings['misc']['uninstall-data'];

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// Remove the uninstall data setting.

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unset( $settings['misc']['uninstall-data'] );

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// Add the email summaries setting.

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$settings['misc']['email-summaries-disable'] = [

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'id' => 'email-summaries-disable',

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'name' => esc_html__( 'Disable Email Summaries', 'wpforms-lite' ),

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'desc' => $desc,

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'type' => 'toggle',

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'status' => true,

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];

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// Add the uninstall data setting to the end.

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$settings['misc']['uninstall-data'] = $uninstall_data;

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return $settings;

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}

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/**

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* Preview Email Summary.

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* @since 1.5.4

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public function preview() {

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// Leave early if the current request is not a preview for the summaries email template.

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if ( ! $this->is_preview() ) {

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return;

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}

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// Get form entries.

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$entries = $this->get_entries();

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$args = [

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'body' => [

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'overview' => $this->get_calculation_overview( $entries ),

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'entries' => $this->format_trends_for_display( $entries ),

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'has_trends' => $this->entries_has_trends( $entries ),

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'notification_block' => ( new NotificationBlocks() )->get_block(),

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'info_block' => ( new InfoBlocks() )->get_next(),

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'icons' => $this->get_icons_url(),

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];

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$template = ( new Templates\Summary() )->set_args( $args );

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/**

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* Filters the summaries email template.

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* @since 1.5.4

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* @param Templates\Summary $template Default summaries email template.

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$template = apply_filters( 'wpforms_emails_summaries_template', $template );

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$content = $template->get();

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if ( Helpers::is_plain_text_template() ) {

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$content = wpautop( $content );

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}

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// phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped

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echo $content;

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exit;

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}

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/**

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* Get next cron occurrence date.

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* @since 1.5.4

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* @return int

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protected function get_first_cron_date_gmt(): int {

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$date = absint( strtotime( 'next monday 2pm' ) - ( get_option( 'gmt_offset' ) * HOUR_IN_SECONDS ) );

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return $date ? $date : time();

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}

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/**

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* Add custom Email Summaries cron schedule.

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* @since 1.5.4

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* @param array $schedules WP cron schedules.

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* @return array

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public function add_weekly_cron_schedule( $schedules ) {

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$schedules['wpforms_email_summaries_weekly'] = [

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// Make sure the cron job runs on Monday at 2pm.

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'interval' => $this->get_first_cron_date_gmt() - time(),

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'display' => esc_html__( 'Weekly WPForms Email Summaries', 'wpforms-lite' ),

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];

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return $schedules;

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}

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/**

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* Email Summaries cron callback.

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* @since 1.5.4

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public function cron() {

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$entries = $this->get_entries();

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// Email won't be sent if there are no form entries.

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if ( empty( $entries ) ) {

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return;

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}

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$notification = new NotificationBlocks();

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$notification_block = $notification->get_block();

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$info_blocks = new InfoBlocks();

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$next_block = $info_blocks->get_next();

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$args = [

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'body' => [

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'overview' => $this->get_calculation_overview( $entries ),

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'entries' => $this->format_trends_for_display( $entries ),

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'has_trends' => $this->entries_has_trends( $entries ),

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'notification_block' => $notification_block,

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'info_block' => $next_block,

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'icons' => $this->get_icons_url(),

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];

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$template = ( new Templates\Summary() )->set_args( $args );

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/** This filter is documented in preview() method above. */

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$template = apply_filters( 'wpforms_emails_summaries_template', $template );

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$content = $template->get();

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if ( ! $content ) {

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return;

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}

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$parsed_home_url = wp_parse_url( home_url() );

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$site_domain = $parsed_home_url['host'];

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if ( is_multisite() && isset( $parsed_home_url['path'] ) ) {

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$site_domain .= $parsed_home_url['path'];

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}

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$subject = sprintf(

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/* translators: %s - site domain. */

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esc_html__( 'Your Weekly WPForms Summary for %s', 'wpforms-lite' ),

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$site_domain

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);

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/**

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* Filters the summaries email subject.

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* @since 1.5.4

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* @param string $subject Default summaries email subject.

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$subject = apply_filters( 'wpforms_emails_summaries_cron_subject', $subject );

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/**

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* Filters the summaries recipient email address.

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* @since 1.5.4

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* @param string $option Default summaries recipient email address.

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$to_email = apply_filters( 'wpforms_emails_summaries_cron_to_email', get_option( 'admin_email' ) );

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$sent = ( new Mailer() )

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->template( $template )

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->subject( $subject )

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->to_email( $to_email )

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->send();

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if ( $sent === true ) {

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$info_blocks->register_sent( $next_block );

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// Cache the notification block shown to avoid showing it again in the future.

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$notification->maybe_remember_shown_block( $notification_block );

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}

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}

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/**

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* Get form entries.

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* @since 1.5.4

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* @return array

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protected function get_entries(): array {

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// The return value is intentionally left empty, as each email summary

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// depending on the plugin edition Lite/Pro will have different implementation.

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return [];

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}

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/**

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* Get calculation overview.

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* @since 1.8.8

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* @param array $entries Form entries.

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* @return array

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private function get_calculation_overview( $entries ): array {

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// Check if the entries array is empty.

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if ( empty( $entries ) ) {

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return [];

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}

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// Get the sum of 'count' index in all entries.

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$sum_current = array_sum( array_column( $entries, 'count' ) );

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// Choose a specific 'form_id' to check if 'count_previous_week' index exists.

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$sample_form_id = key( $entries );

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// Check if 'count_previous_week' index doesn't exist and return early.

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if ( ! isset( $entries[ $sample_form_id ]['count_previous_week'] ) ) {

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return [];

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}

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// Get the sum of 'count_previous_week' index in all entries.

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$sum_previous_week = array_sum( array_column( $entries, 'count_previous_week' ) );

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// Check if the sum of counts from the previous week is 0.

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// If so, return the sum of counts from the current week and trends as "+100%".

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if ( $sum_previous_week === 0 ) {

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return [

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'total' => $sum_current,

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'trends' => $this->format_trends_for_display( $sum_current === 0 ? 0 : 100 ),

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];

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}

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// Calculate trends based on the sum of counts from the current week and the previous week.

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$trends = round( ( $sum_current - $sum_previous_week ) / $sum_previous_week * 100 );

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// Return an array with the total and trends.

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return [

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'total' => $sum_current,

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'trends' => $this->format_trends_for_display( $trends ),

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];

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}

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/**

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* Register Action Scheduler task to fetch and cache Info Blocks.

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* @since 1.6.4

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* @param \WPForms\Tasks\Task[] $tasks List of task classes.

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* @return array

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public static function register_fetch_info_blocks_task( $tasks ): array {

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$tasks[] = FetchInfoBlocksTask::class;

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return $tasks;

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}

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/**

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* Deregister Action Scheduler task to fetch and cache Info Blocks.

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* @since 1.6.4

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public function deregister_fetch_info_blocks_task() {

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if ( ! $this->is_disabled() ) {

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return;

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}

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// Deregister the task.

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( new FetchInfoBlocksTask() )->cancel();

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// Delete last run time record.

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delete_option( FetchInfoBlocksTask::LAST_RUN );

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// Remove the cache file if it exists.

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$file_name = ( new InfoBlocks() )->get_cache_file_path();

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if ( file_exists( $file_name ) ) {

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// phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged, WordPress.WP.AlternativeFunctions.unlink_unlink

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@unlink( $file_name );

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}

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}

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/**

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* Check if the current request is a preview for the summaries email template.

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* @since 1.8.8

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* @return bool

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private function is_preview(): bool {

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// Leave if the current user can't access.

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if ( ! wpforms_current_user_can() ) {

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return false;

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}

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// phpcs:disable WordPress.Security.NonceVerification.Recommended, WordPress.Security.ValidatedSanitizedInput.InputNotSanitized

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// Leave early if nonce verification failed.

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if ( ! isset( $_GET['_wpnonce'] ) || ! wp_verify_nonce( sanitize_key( $_GET['_wpnonce'] ), Preview::PREVIEW_NONCE_NAME ) ) {

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return false;

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}

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// Leave early if preview is not requested.

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if ( ! isset( $_GET['wpforms_email_preview'], $_GET['wpforms_email_template'] ) ) {

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return false;

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}

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// Leave early if preview is not requested for the summaries template.

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if ( $_GET['wpforms_email_template'] !== 'summary' ) {

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return false;

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}

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// phpcs:enable WordPress.Security.NonceVerification.Recommended, WordPress.Security.ValidatedSanitizedInput.InputNotSanitized

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return true;

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}

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/**

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* Format entries trends for display.

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* This function takes an array of entries and formats the 'trends' value for display.

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* @since 1.8.8

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* @param array|int $input Input data to format.

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* @return array|string

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private function format_trends_for_display( $input ) {

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// If input is a numeric value, format and return it.

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if ( is_numeric( $input ) ) {

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return sprintf( '%s%s%%', $input >= 0 ? '+' : '', $input );

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}

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// Loop through entries and format 'trends' values.

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foreach ( $input as &$form ) {

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// Leave early if 'trends' index doesn't exist.

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if ( ! isset( $form['trends'] ) ) {

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continue;

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}

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// Add percent sign to trends and + sign if value greater than zero.

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$form['trends'] = sprintf( '%s%s%%', $form['trends'] >= 0 ? '+' : '', $form['trends'] );

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}

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return $input;

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}

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/**

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* Check if trends can be displayed for the given entries.

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* @since 1.8.8

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* @param array $entries The entries data.

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* @return bool

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private function entries_has_trends( array $entries ): bool {

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// Return false if entries array is empty.

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if ( empty( $entries ) ) {

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return false;

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}

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