Илья

AddEventHandler("catalog", "OnBeforeCatalogImport1C", "CatalogWeightProcessor::OnBeforeCatalogImport1C");
AddEventHandler("catalog", "OnSuccessCatalogImport1C", "CatalogWeightProcessor::OnSuccessCatalogImport1C");

class CatalogWeightProcessor
{
    protected static $exchangeStart = null;

    public static function OnBeforeCatalogImport1C()
    {
        // запоминаем время начала обмена, чтобы вытащить только обновленные товары
        self::$exchangeStart = time();
    }

    public static function OnSuccessCatalogImport1C()
    {
        Bitrix\Main\Loader::includeModule('iblock');

        $select = [
            'ID',
            'PROPERTY_[вес]',
        ];
        $filter = [
            '=IBLOCK_ID' => "ид каталога",
            '>=TIMESTAMP_X' => Bitrix\Main\Type\DateTime::createFromTimestamp(self::$exchangeStart),
        ];
        $result = CIBlockElement::GetList([], $filter, false, false, $select);
        while ($row = $result->GetNext()) {
            $productId = $row['ID'];
            $weight = (float) $row['PROPERTY_[вес]_VALUE'];
            $result = Bitrix\Catalog\ProductTable::update($productId, [
                'WEIGHT' => $weight,
            ]);
            if (!$result->isSuccess()) {
                $errors = $result->getErrorMessages();
                CEventLog::Add([
                    'SEVERITY' => 'ERROR',
                    'AUDIT_TYPE_ID' => 'exchange1c',
                    'MODULE_ID' => 'catalog',
                    'ITEM_ID' => $productId,
                    'DESCRIPTION' => join(",", $errors),
                ]);
            }
        }
    }
}

<template>
    <div>
        <div class='tags'>
            <a v-for="item in tags" @click.prevent="activeTagId = item.id">{item.name}</a>
        </div>
        <div class="videos">
            <div v-for="item in videos" v-show="isViewVideo(item)">...</div>
        </div>
    </div>
</template>
<script>
export default {
    data() {
        return {
            activeTagId: null,
            tags: [
                {
                    id: 1,
                    name: '',
                },
            ],
            videos: [
                {
                    id: 1,
                    name: '',
                    tagIds: [1,2,3],
                },
            ],
        };
    },
    methods: {
        isViewVideo(video) {
            return video.tagIds && video.tagIds.indexOf(this.activeTagId) >= 0;
        },
    },
}
</script>

class SitemapImageBuilder
{
	public function __construct(string $imagesDir)
	{
		$this->dir = $imagesDir;
	}

	public function run()
	{
		$imageFiles = $this->getImageFiles($this->dir);
		$this->generateXml($imageFiles);
	}

	public function getImageFiles(string $path)
	{
		$ret = [];
		$files = scandir($path);
		$explodeNames = [
			'.',
			'..',
		];
		$mimeRe = "/^image/";
		foreach ($files as $name) {
			if (in_array($name, $explodeNames)) {
				continue;
			}

			$filePath = $path .'/'. $name;
			if (is_dir($filePath)) {
				$childs = $this->getImageFiles($filePath);
				if ($childs) {
					array_push($ret, ...$childs);
				}
			}
			else if (is_file($filePath)) {
				$mime = mime_content_type($name);
				if (preg_match($mimeRe, $mime)) {
					$ret[] = $filePath;
				}
			}
		}
		return $ret;
	}

	public function generateXml(array $pathes)
	{
		// генерация XML sitemap
	}
}

$imagesDir = 'path/to/static';
(new SitemapImageBuilder($imagesDir))->run();