enum.php

См. документацию.

<?php
 
namespace Bitrix\Sale\Delivery\ExtraServices;
 
use Bitrix\Main\SystemException;
use Bitrix\Main\Localization\Loc;
 
Loc::loadMessages(__FILE__);
 
class Enum extends Base
{
    public function __construct($id, array $structure, $currency, $value = null, array $additionalParams = array())
    {
        $prices = !empty($structure["PARAMS"]["PRICES"]) && is_array($structure["PARAMS"]["PRICES"]) ? $structure["PARAMS"]["PRICES"] : array();
        $structure["PARAMS"]["ONCHANGE"] = $this->createJSOnchange($id, $prices);
        parent::__construct($id, $structure, $currency,  $value);
        $this->params["TYPE"] = "ENUM";
        $this->params["OPTIONS"] = array();
    }
 
    public static function getClassTitle()
    {
        return Loc::getMessage("DELIVERY_EXTRA_SERVICE_ENUM_TITLE");
    }
 
    public function getCost()
    {
        if (
            !isset($this->params["PRICES"])
            || !is_array($this->params["PRICES"])
        )
        {
            throw new SystemException("Service id: " . $this->id . " doesn't have field array PRICES");
        }
 
        if (isset($this->params["PRICES"][$this->value]["PRICE"]))
        {
            $result = $this->params["PRICES"][$this->value]["PRICE"];
        }
        else
        {
            $row = reset($this->params["PRICES"]);
            $result =$row["PRICE"] ?? 0;
        }
 
        return $this->convertToOperatingCurrency($result);
    }
 
    public static function prepareParamsToSave(array $params)
    {
        if(!isset($params["PARAMS"]["PRICES"]) || !is_array($params["PARAMS"]["PRICES"]))
            return $params;
 
        foreach($params["PARAMS"]["PRICES"] as $id => $price)
            if($price["TITLE"] == '')
                unset($params["PARAMS"]["PRICES"][$id]);
 
        return $params;
    }
 
    public static function getAdminParamsName()
    {
        return Loc::getMessage("DELIVERY_EXTRA_SERVICE_ENUM_LIST");
    }
 
    public static function getAdminParamsControl($name, array $params, $currency = "")
    {
        $result = '<div style="border: 1px solid #e0e8ea; padding: 10px; width: 500px;">';
 
        if(isset($params["PARAMS"]["PRICES"]) && is_array($params["PARAMS"]["PRICES"]))
        {
            foreach($params["PARAMS"]["PRICES"] as $id => $price)
            {
                if(!isset($params["PARAMS"]["PRICES"][$id]))
                    $params["PARAMS"]["PRICES"][$id] = 0;
 
                $result .= self::getValueHtml($name, $id, $price["TITLE"], $price["PRICE"] ?? 0, $currency)."<br><br>";
            }
        }
 
        $i = strval(time());
        $result .= self::getValueHtml($name, $i, "", "", $currency)."<br><br>".
            '<input type="button" value="'.Loc::getMessage("DELIVERY_EXTRA_SERVICE_ENUM_ADD").
                '" onclick=\'var d=new Date(); '.
                'this.parentNode.insertBefore(BX.create("span",{html: this.nextElementSibling.innerHTML.replace(/\#ID\#/g, d.getTime())}), this);\'>'.
            '<span style="display:none;">'.self::getValueHtml($name, '#ID#')."<br><br>".'</span><br><br></div>';
 
        return $result;
    }
 
    protected static function getValueHtml($name, $id, $title = "", $price = "", $currency = "")
    {
        $price = roundEx((float)$price, SALE_VALUE_PRECISION);
        $currency = htmlspecialcharsbx((string)$currency);
 
        return Loc::getMessage("DELIVERY_EXTRA_SERVICE_ENUM_NAME").
            ':&nbsp;<input name="'.$name.'[PARAMS][PRICES]['.$id.'][TITLE]" value="'.htmlspecialcharsbx($title).'">&nbsp;&nbsp;'.
            Loc::getMessage("DELIVERY_EXTRA_SERVICE_ENUM_PRICE").
            ':&nbsp;<input name="'.$name.'[PARAMS][PRICES]['.$id.'][PRICE]" value="'.$price.'">'.($currency <> '' ? " (".$currency.")" : "");
    }
 
    protected static function getJSPrice(array $prices)
    {
        if(empty($prices))
            return "";
 
        foreach($prices as $id => $price)
            $prices[$id] = roundEx(floatval($price), SALE_VALUE_PRECISION);
 
        return "(function(value){var prices=".\CUtil::PhpToJSObject($prices)."; return prices[value]['PRICE'];})(this.value)";
    }
 
    public function setOperatingCurrency($currency)
    {
        if(!empty($this->params["PRICES"]) && is_array($this->params["PRICES"]))
        {
            $prices = array();
 
            foreach($this->params["PRICES"] as $id => $price)
                $prices[$id] = $this->convertToOperatingCurrency($price);
 
            $this->params["ONCHANGE"] = $this->createJSOnchange($this->id, $prices);
        }
 
        $this->createOptions();
        parent::setOperatingCurrency($currency);
    }
 
    protected function createOptions()
    {
        $this->params["OPTIONS"] = [];
 
        if (empty($this->params["PRICES"]) || !is_array($this->params["PRICES"]))
        {
            return;
        }
 
        foreach ($this->params["PRICES"] as $key => $price)
        {
            if (!is_array($price))
            {
                continue;
            }
            $priceTitle = trim((string)($price['TITLE'] ?? ''));
            if ($priceTitle === '')
            {
                continue;
            }
 
            $priceVal = (float)($price['PRICE'] ?? 0);
            $this->params['OPTIONS'][$key] =
                htmlspecialcharsbx($price['TITLE'])
                . ' ('
                . strip_tags(
                    SaleFormatCurrency(
                        $this->convertToOperatingCurrency($priceVal),
                        $this->operatingCurrency,
                        false
                    )
                )
                . ')'
            ;
        }
    }
 
    public function getEditControl($prefix = "", $value = false)
    {
        $this->createOptions();
        return parent::getEditControl($prefix, $value);
    }
 
    public function getViewControl()
    {
        $this->createOptions();
        return parent::getViewControl();
    }
 
    protected function createJSOnchange($id, array $prices)
    {
        return "BX.onCustomEvent('onDeliveryExtraServiceValueChange', [{'id' : '".$id."', 'value': this.value, 'price': ".$this->getJSPrice($prices)."}]);";
    }

    public function getDisplayValue(): ?string
    {
        return isset($this->params['PRICES'][$this->value])
            ? (string)$this->params['PRICES'][$this->value]['TITLE']
            : null;
    }
}