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Editing: Google.php

<?php

namespace Spatie\CalendarLinks\Generators;

use Spatie\CalendarLinks\Generator;
use Spatie\CalendarLinks\Link;

/**
 * @see https://github.com/InteractionDesignFoundation/add-event-to-calendar-docs/blob/master/services/google.md
 * @psalm-type GoogleUrlParameters = array<string, scalar|null>
 */
class Google implements Generator
{
    /** @var string {@see https://www.php.net/manual/en/function.date.php} */
    protected $dateFormat = 'Ymd';
    /** @var string */
    protected $dateTimeFormat = 'Ymd\THis';

/** @psalm-var GoogleUrlParameters */
    protected array $urlParameters = [];

/** @psalm-param GoogleUrlParameters $urlParameters */
    public function __construct(array $urlParameters = [])
    {
        $this->urlParameters = $urlParameters;
    }

/** {@inheritDoc} */
    public function generate(Link $link): string
    {
        $url = 'https://calendar.google.com/calendar/render?action=TEMPLATE';

$dateTimeFormat = $link->allDay ? $this->dateFormat : $this->dateTimeFormat;
        $url .= '&dates='.$link->from->format($dateTimeFormat).'/'.$link->to->format($dateTimeFormat);
        $url .= '&ctz=' . $link->from->getTimezone()->getName();
        $url .= '&text='.urlencode($link->title);

if ($link->description) {
            $url .= '&details='.urlencode($link->description);
        }

if ($link->address) {
            $url .= '&location='.urlencode($link->address);
        }

foreach ($this->urlParameters as $key => $value) {
            $url .= '&'.urlencode($key).(in_array($value, [null, ''], true) ? '' : '='.urlencode((string) $value));
        }

return $url;
    }
}

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