CollabCollection.php

См. документацию.

<?php
 
declare(strict_types=1);
 
namespace Bitrix\Socialnetwork\Collab;
 
use ArrayAccess;
use ArrayIterator;
use Bitrix\Main\Type\Contract\Arrayable;
use Countable;
use IteratorAggregate;

class CollabCollection implements ArrayAccess, IteratorAggregate, Arrayable, Countable
{
    protected array $collabs = [];
 
    public function __construct(Collab ...$collabs)
    {
        foreach ($collabs as $collab)
        {
            $this->collabs[$collab->getId()] = $collab;
        }
    }
 
    public function isEmpty(): bool
    {
        return empty($this->collabs);
    }
 
    public function offsetExists(mixed $offset): bool
    {
        return isset($this->collabs[$offset]);
    }
 
    public function offsetGet(mixed $offset): ?Collab
    {
        return $this->collabs[$offset] ?? null;
    }
 
    public function offsetSet(mixed $offset, mixed $value): void
    {
        $this->collabs[$offset] = $value;
    }
 
    public function offsetUnset(mixed $offset): void
    {
        unset($this->collabs[$offset]);
    }
 
    public function getIterator(): ArrayIterator
    {
        return new ArrayIterator($this->collabs);
    }
 
    public function toArray(): array
    {
        $data = [];
        foreach ($this->collabs as $collab)
        {
            $data[$collab->getId()] = $collab->toArray();
        }
 
        return $data;
    }
 
    public function getFirst(): ?Collab
    {
        foreach ($this->collabs as $collab)
        {
            return $collab;
        }
 
        return null;
    }
 
    public function count(): int
    {
        return count($this->collabs);
    }
 
    public function __call(string $name, array $arguments = [])
    {
        $operation = substr($name, 0, 3);
        $subOperation =  lcfirst(substr($name, -4));
 
        if ($operation === 'get' && $subOperation === 'list')
        {
            $property = strtoupper(substr($name, 3, -4));
 
            return array_column($this->toArray(), $property);
        }
 
        return null;
    }
}