basiccomponent.php

См. документацию.

<?php
 
 
namespace Bitrix\Calendar\ICal\Basic;
 
 
use Bitrix\Calendar\ICal\Builder\ComponentCreator;
 
abstract class BasicComponent
{
    private $attachProperties = [];
 
    private $attachSubComponent = [];
 
    abstract public function getType() : string;
 
    abstract public function getProperties(): array;
 
    public function accessContent(): Content
    {
        $content = $this->setContent();
 
        foreach ($this->attachProperties as $attachProperty)
        {
            $content->property($attachProperty);
        }
 
        $content->subComponent(...$this->attachSubComponent);
 
        return $content;
    }
 
    public function toString(): string
    {
        $load = $this->accessContent();
 
        $this->hasRequiredProperties($load);
 
        $builder = new ComponentCreator($load);
 
        return $builder->build();
    }
 
    public function appendProperty(PropertyType $property): BasicComponent
    {
        $this->attachProperties[] = $property;
 
        return $this;
    }
 
    public function appendSubComponent(BasicComponent $component): BasicComponent
    {
        $this->attachSubComponent[] = $component;
 
        return $this;
    }
 
    protected function hasRequiredProperties(Content $componentLoad)
    {
        $providedProperties = [];
 
        foreach ($componentLoad->getProperties() as $property) {
            $providedProperties = array_merge(
                $providedProperties,
                $property->getNames()
            );
        }
 
        $requiredProperties = $this->getProperties();
 
        $sameItems = array_intersect($requiredProperties, $providedProperties);
 
        if (count($sameItems) !== count($requiredProperties)) {
            $missingProperties = array_diff($requiredProperties, $sameItems);
 
            throw InvalidComponent::requiredPropertyMissing($missingProperties, $this);
        }
    }
}