File core/shared/classes/class.templating-engine.php

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<?php

function Inbound_Templating_Engine() {
    return Inbound_Templating_Engine::instance();
}


/**
 * Class Inbound_Templating_Engine adds methods supporting token swapping when sending admin new lead notification emails and mailer component emails. Needs more documentation
 * @package Shared
 * @subpackage ShortcodesAndTokens
 */



class Inbound_Templating_Engine {

    public static $instance;
    private $defaults;

    /* Load Singleton Instance */
    public static function instance() {

        if ( ! isset( self::$instance ) && ! ( self::$instance instanceof Inbound_Automation_Load_Extensions ) )
        {
            self::$instance = new Inbound_Templating_Engine;
            self::define_default_tokens();
        }

        return self::$instance;

    }

    /* Set Default Token Values */
    public static function define_default_tokens() {
        self::$instance->defaults = array (
            'admin-email-address' => get_option( 'admin_email', '' ),
            'admin-url' => admin_url(),
            'site-name' => get_option( 'blogname', '' ),
            'site-tagline' => get_option( 'blogdescription', '' ),
            'site-url' => get_option( 'siteurl', '' ) ,
            'date-time' =>  date( 'Y-m-d H:i:s A', current_time( 'timestamp' ) )
        );

        /* Plugin specific constants */
        if ( defined( 'LANDINGPAGES_URLPATH' ) ) {
            self::$instance->defaults['landingpages-urlpath'] = LANDINGPAGES_URLPATH;
        }

        if ( defined( 'WPL_URLPATH' ) ) {
            self::$instance->defaults['leads-urlpath'] = WPL_URLPATH;
        }

        if ( defined( 'WP_CTA_URLPATH' ) ) {
            self::$instance->defaults['callstoaction-urlpath'] = WP_CTA_URLPATH;
        }
    }

    /* Replace Tokens */
    public static function replace_tokens( $template, $args ) {

        /* Add default key/value pairs to front of $args array */
        array_unshift( $args, self::$instance->defaults );

        /* Loop through arguments in $args and replacec template tokens with values found in arguments */
        foreach ($args as $arg) {

            /* Lets look for certain nested arrays and pull their content into the main $arg array */
            if ( isset($arg['Mapped_Data']) ) {
                $arg_json = json_decode( stripslashes($arg['Mapped_Data']), true);

                foreach ($arg_json as $k=>$v) {
                    $arg[$k] = $v;
                }
            }

            /* Lets look for certain nested arrays and pull their content into the main $arg array */
            if ( isset($arg['mapped_params']) ) {

                parse_str( stripslashes($arg['mapped_params']), $arg_parsed);

                foreach ($arg_parsed as $k=>$v) {
                    $arg[$k] = $v;
                }

            }

            foreach ($arg as $key => $value ) {

                /* ignore child elements that are arrays */
                if ( is_array($value) ) {
                    continue;
                }

                /* prepare/re-map keys */
                $key = str_replace( 'inbound_current_page_url', 'source', $key );
                $key = str_replace( 'inbound_form_n', 'form_name', $key );
                $key = str_replace( 'inbound_', '', $key );
                $key = str_replace( 'wpleads_', 'lead_', $key );
                $key = str_replace( '_', '-', $key );

                /* replace tokens in template */
                $template = str_replace( '{{'.$key.'}}', $value, $template );

            }

        }

        /* Replace All Leftover Tokens */
        $template = preg_replace( '/{{(.*?)}}/si', '', $template, -1 );

        return do_shortcode($template);
    }

}

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