gocodebox/lifterlms

<?php
/**
 * Engagement Email
 *
 * @package LifterLMS/Emails/Classes
 *
 * @since 1.0.0
 * @version 5.0.0
 */

defined( 'ABSPATH' ) || exit;

/**
 * Engagement Email Class
 *
 * Generates emails and sends to user. Triggered from an engagement.
 *
 * @since 1.0.0
 * @since 3.30.3 Explicitly define class properties.
 */
class LLMS_Email_Engagement extends LLMS_Email {

    /**
     * Email identifier
     *
     * @since 1.0.0
     * @var string
     */
    protected $id = 'engagement';

    /**
     * @since 3.8.0
     * @var WP_User
     */
    public $student;

    /**
     * Initialize all variables
     *
     * @since 1.0.0
     * @since 3.8.0 Unknown.
     *
     * @param array $args Associative array of engagement args.
     * @return void
     */
    public function init( $args ) {

        $this->student    = new WP_User( $args['person_id'] );
        $this->email_post = get_post( $args['email_id'] );

        $this->add_merge_data(
            array(
                '{user_login}'    => stripslashes( $this->student->user_login ),
                '{first_name}'    => stripslashes( $this->student->first_name ),
                '{last_name}'     => stripslashes( $this->student->last_name ),
                '{email_address}' => stripslashes( $this->student->user_email ),
                '{site_url}'      => get_permalink( llms_get_page_id( 'myaccount' ) ),
                '{current_date}'  => date_i18n( get_option( 'date_format' ), current_time( 'timestamp' ) ),
            )
        );

        // Setup subject, headline, & body.
        $this->body    = $this->email_post->post_content;
        $this->subject = get_post_meta( $this->email_post->ID, '_llms_email_subject', true );
        $this->heading = get_post_meta( $this->email_post->ID, '_llms_email_heading', true );

        // Setup all the recipients.
        foreach ( array( 'to', 'cc', 'bcc' ) as $type ) {

            $list = get_post_meta( $this->email_post->ID, '_llms_email_' . $type, true );

            // Fall back to student email for existing emails with no definition.
            if ( ! $list && 'to' === $type ) {
                $list = '{student_email}';
            }

            if ( ! $list ) {
                continue;
            }

            foreach ( $this->merge_emails( $list ) as $email ) {
                $this->add_recipient( $email, $type );
            }
        }

    }

    /**
     * Handles email merge codes that can be used in the to, cc, and bcc fields
     *
     * @since 3.1.0
     * @since 3.8.0 Unknown.
     *
     * @param string $list Unmerged, comma-separated list of emails
     * @return array
     */
    private function merge_emails( $list ) {

        $codes = array(
            '{student_email}',
            '{admin_email}',
        );

        $addresses = array(
            $this->student->ID,
            get_option( 'admin_email' ),
        );

        $merged = str_replace( $codes, $addresses, $list );
        $array  = explode( ',', $merged );
        return array_map( 'trim', $array );

    }

    /**
     * Send email
     *
     * @since 5.0.0
     *
     * @return boolean
     */
    public function send() {

        add_filter( 'llms_user_info_shortcode_user_id', array( $this, 'set_shortcode_user' ) );

        $ret = parent::send();

        remove_filter( 'llms_user_info_shortcode_user_id', array( $this, 'set_shortcode_user' ) );

        return $ret;

    }

    /**
     * Set the user ID used by [llms-user] to the user receiving the email.
     *
     * @since 5.0.0
     *
     * @param int $uid WP_User ID of the current user.
     * @return int
     */
    public function set_shortcode_user( $uid ) {
        return $this->student->ID;
    }

}