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File / Folder	Size	Action
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resources	--	ren
AbstractCursorPaginator...	14.886KB	edt ren
AbstractPaginator.php	16.539KB	edt ren
Cursor.php	3.154KB	edt ren
CursorPaginator.php	4.443KB	edt ren
LICENSE.md	1.05KB	edt ren
LengthAwarePaginator.php	6.038KB	edt ren
PaginationServiceProvid...	0.723KB	edt ren
PaginationState.php	1.011KB	edt ren
Paginator.php	4.271KB	edt ren
UrlWindow.php	5.606KB	edt ren
composer.json	0.879KB	edt ren

<?php

namespace Illuminate\Pagination;

use Illuminate\Contracts\Support\Arrayable;
use UnexpectedValueException;

class Cursor implements Arrayable
{
    /**
     * The parameters associated with the cursor.
     *
     * @var array
     */
    protected $parameters;

/**
     * Determine whether the cursor points to the next or previous set of items.
     *
     * @var bool
     */
    protected $pointsToNextItems;

/**
     * Create a new cursor instance.
     *
     * @param  array  $parameters
     * @param  bool  $pointsToNextItems
     */
    public function __construct(array $parameters, $pointsToNextItems = true)
    {
        $this->parameters = $parameters;
        $this->pointsToNextItems = $pointsToNextItems;
    }

/**
     * Get the given parameter from the cursor.
     *
     * @param  string  $parameterName
     * @return string|null
     *
     * @throws \UnexpectedValueException
     */
    public function parameter(string $parameterName)
    {
        if (! array_key_exists($parameterName, $this->parameters)) {
            throw new UnexpectedValueException("Unable to find parameter [{$parameterName}] in pagination item.");
        }

return $this->parameters[$parameterName];
    }

/**
     * Get the given parameters from the cursor.
     *
     * @param  array  $parameterNames
     * @return array
     */
    public function parameters(array $parameterNames)
    {
        return collect($parameterNames)->map(function ($parameterName) {
            return $this->parameter($parameterName);
        })->toArray();
    }

/**
     * Determine whether the cursor points to the next set of items.
     *
     * @return bool
     */
    public function pointsToNextItems()
    {
        return $this->pointsToNextItems;
    }

/**
     * Determine whether the cursor points to the previous set of items.
     *
     * @return bool
     */
    public function pointsToPreviousItems()
    {
        return ! $this->pointsToNextItems;
    }

/**
     * Get the array representation of the cursor.
     *
     * @return array
     */
    public function toArray()
    {
        return array_merge($this->parameters, [
            '_pointsToNextItems' => $this->pointsToNextItems,
        ]);
    }

/**
     * Get the encoded string representation of the cursor to construct a URL.
     *
     * @return string
     */
    public function encode()
    {
        return str_replace(['+', '/', '='], ['-', '_', ''], base64_encode(json_encode($this->toArray())));
    }

/**
     * Get a cursor instance from the encoded string representation.
     *
     * @param  string|null  $encodedString
     * @return static|null
     */
    public static function fromEncoded($encodedString)
    {
        if (! is_string($encodedString)) {
            return null;
        }

$parameters = json_decode(base64_decode(str_replace(['-', '_'], ['+', '/'], $encodedString)), true);

if (json_last_error() !== JSON_ERROR_NONE) {
            return null;
        }

$pointsToNextItems = $parameters['_pointsToNextItems'];

unset($parameters['_pointsToNextItems']);

return new static($parameters, $pointsToNextItems);
    }
}