File util.php

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<?php

namespace SIW;

/**
 * Hulpfuncties
 *
 * @copyright 2019 SIW Internationale Vrijwilligersprojecten
 * @since     3.0.0
 */
class Util {

    /**
     * Geeft breakpoint voor mobile terug
     *
     * @return int
     */
    public static function get_mobile_breakpoint() {
        return function_exists( 'siteorigin_panels_setting') ? siteorigin_panels_setting( 'mobile-width' ) : 780; //TODO: fallback in constante
    }

    /**
     * Geeft breakpoint voor tablet terug
     *
     * @return int
     */
    public static function get_tablet_breakpoint() {
        return function_exists( 'siteorigin_panels_setting') ? siteorigin_panels_setting( 'tablet-width' ) : 1024;  //TODO: fallback in constante
    }

    /**
     * Geeft validatiepatroon terug
     *
     * @param string $type
     * @return string
     * 
     * @todo   patterns verplaatsen naar databestand
     */
    public static function get_pattern( string $type ) {
        $patterns = [
            'date'        => '^(0?[1-9]|[12]\d|3[01])[\-](0?[1-9]|1[012])[\-]([12]\d)?(\d\d)$',
            'postal_code' => '^[1-9][0-9]{3}\s?[a-zA-Z]{2}$',
            'latitude'    => '^[-]?(([0-8]?[0-9])\.(\d+))|(90(\.0+)?)$',
            'longitude'   => '^[-]?((((1[0-7][0-9])|([0-9]?[0-9]))\.(\d+))|180(\.0+)?)$',
            'ip'          => '^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$',
        ];
        return $patterns[ $type ] ?? null;
    }

    /**
     * Geeft reguliere expressie terug
     *
     * @param string $type
     * @return string
     */
    public static function get_regex( string $type ) {

        $pattern = self::get_pattern( $type );
        if ( null === $pattern ) {
            return null;
        }
        return sprintf( '/%s/', $pattern );
    }

    /**
     * Geeft array met pagina's in standaardtaal terug
     * 
     * @return array
     * 
     * @todo https://docs.metabox.io/custom-select-checkbox-tree/
     */
    public static function get_pages() {
        $default_lang = i18n::get_default_language();
        $current_lang = i18n::get_current_language();
        do_action( 'wpml_switch_language', $default_lang );
        $results = get_pages();
        do_action( 'wpml_switch_language', $current_lang );

        $pages = [];
        foreach ( $results as $result ) {
            $ancestors = array_reverse( get_ancestors( $result->ID, 'page') );
            $callback = function( &$value, $key ) {
                $value = get_the_title( $value );
            };
            array_walk( $ancestors, $callback );
            $prefix = ! empty( $ancestors ) ? implode( '/', $ancestors ) . '/' : '';
            $pages[ $result->ID ] = esc_html( $prefix . $result->post_title );
        }
        return $pages;
    }
    
    /**
     * Berekent leeftijd in jaren o.b.v. huidige datum
     *
     * @param  string $date dd-mm-jjjj
     * @return int leeftijd in jaren
     */
    public static function calculate_age( string $date ) {
        $from = new \DateTime( $date );
        $to   = new \DateTime('today');
        return $from->diff( $to )->y;
    }

    /**
     * Converteert timestamp met tijdzone naar timestamp in GMT
     *
     * @param int $timestamp
     * @return int
     */
    public static function convert_timestamp_to_gmt( int $timestamp ) {
        return strtotime( get_gmt_from_date( date( 'Y-m-d H:i:s', $timestamp ) ) . ' GMT' );
    }

    /**
     * Geeft aan of kortingsactie voor Groepsprojecten actief is
     *
     * @return bool
     */
    public static function is_workcamp_sale_active() {
        
        $workcamp_sale = siw_get_option( 'workcamp_sale' );
        $workcamp_sale_active = false;

        if ( isset( $workcamp_sale['active'] ) &&
            date( 'Y-m-d' ) >= $workcamp_sale['start_date'] &&
            date( 'Y-m-d' ) <= $workcamp_sale['end_date']
            ) {
                $workcamp_sale_active = true;
        }
        return $workcamp_sale_active;
    }

    /**
     * Geeft aan of kortingsactie voor Projecten Op Maat actief is
     *
     * @return bool
     */
    public static function is_tailor_made_sale_active() {
        
        $tailor_made_sale = siw_get_option( 'tailor_made_sale' );
        
        $tailor_made_sale_active = false;

        if ( isset( $tailor_made_sale['active'] ) &&
            date( 'Y-m-d' ) >= $tailor_made_sale['start_date'] &&
            date( 'Y-m-d' ) <= $tailor_made_sale['end_date']
            ) {
                $tailor_made_sale_active = true;
        }
        return $tailor_made_sale_active;
    }

    /**
     * Geeft aan of template bestaat
     *
     * @param string $template
     * @return bool
     */
    public static function template_exists( string $template ) {
        return file_exists( SIW_TEMPLATES_DIR . "/{$template}" );
    }

    /**
     * Geeft aan of post bestaat op basis van ID
     *
     * @param int $post_id
     * @return string
     */
    public static function post_exists( int $post_id ) {
        return is_string( get_post_status( $post_id ) );
    }

    /**
     * Geeft parameter uit request terug
     *
     * @param string $key
     * @param string $default
     *
     * @return string
     */
    public static function get_request_parameter( string $key, $default = '' ) {
    
        if ( ! isset( $_REQUEST[ $key ] ) || empty( $_REQUEST[ $key ] ) ) {
            return $default;
        }
        return strip_tags( (string) wp_unslash( $_REQUEST[ $key ] ) );
    }

    /**
     * Creëert term indien deze nog niet bestaat
     *
     * @param string $taxonomy
     * @param string $slug
     * @param string $name
     * @param string $order
     * @return int|bool
     */
    public static function maybe_create_term( string $taxonomy, string $slug, string $name, $order = null ) {
        $term = get_term_by( 'slug', $slug, $taxonomy );
        
        //Als term al bestaat zijn we snel klaar
        if ( is_a( $term, '\WP_Term' ) ) {
            return $term->term_id;
        }

        //Anders nieuwe term aanmaken
        $new_term = wp_insert_term( $name, $taxonomy, [ 'slug' => $slug ] );
        if ( is_wp_error( $new_term ) ) {
            return false;
        }

        //Eventueel volgorde zetten
        if ( null != $order ) {
            update_term_meta( $new_term['term_id'], "order_pa_{$taxonomy}", $order ); 
        }

        return $new_term['term_id'];
    }
}

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