<?php
/**
 * Pagination
 *
 * PHP version 7.3
 *
 * @category Class
 * @package  SellingPartnerApi
 */

/**
 * Selling Partner API for Catalog Items
 *
 * The Selling Partner API for Catalog Items provides programmatic access to information about items in the Amazon catalog. For more information, see the [Catalog Items API Use Case Guide](https://developer-docs.amazon.com/sp-api/docs/catalog-items-api-v2020-12-01-use-case-guide).
 *
 * The version of the OpenAPI document: 2020-12-01
 * 
 * Generated by: https://openapi-generator.tech
 * OpenAPI Generator version: 5.0.1
 */

/**
 * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
 * https://openapi-generator.tech
 * Do not edit the class manually.
 */

namespace SellingPartnerApi\Model\Catalog;

use \ArrayAccess;
use \SellingPartnerApi\ObjectSerializer;
use \SellingPartnerApi\Model\ModelInterface;

/**
 * Pagination Class Doc Comment
 *
 * @category Class
 * @description When a request produces a response that exceeds the pageSize, pagination occurs. This means the response is divided into individual pages. To retrieve the next page or the previous page, you must pass the nextToken value or the previousToken value as the pageToken parameter in the next request. When you receive the last page, there will be no nextToken key in the pagination object.
 * @package  SellingPartnerApi
 * @group 
 * @implements \ArrayAccess<TKey, TValue>
 * @template TKey int|null
 * @template TValue mixed|null  
 */
class Pagination implements ModelInterface, ArrayAccess, \JsonSerializable
{
    public const DISCRIMINATOR = null;

    /**
      * The original name of the model.
      *
      * @var string
      */
    protected static $openAPIModelName = 'Pagination';

    /**
      * Array of property to type mappings. Used for (de)serialization
      *
      * @var string[]
      */
    protected static $openAPITypes = [
        'next_token' => 'string',
        'previous_token' => 'string'
    ];

    /**
      * Array of property to format mappings. Used for (de)serialization
      *
      * @var string[]
      * @phpstan-var array<string, string|null>
      * @psalm-var array<string, string|null>
      */
    protected static $openAPIFormats = [
        'next_token' => null,
        'previous_token' => null
    ];

    /**
     * Array of property to type mappings. Used for (de)serialization
     *
     * @return array
     */
    public static function openAPITypes()
    {
        return self::$openAPITypes;
    }

    /**
     * Array of property to format mappings. Used for (de)serialization
     *
     * @return array
     */
    public static function openAPIFormats()
    {
        return self::$openAPIFormats;
    }

    /**
     * Array of attributes where the key is the local name,
     * and the value is the original name
     *
     * @var string[]
     */
    protected static $attributeMap = [
        'next_token' => 'nextToken',
        'previous_token' => 'previousToken'
    ];

    /**
     * Array of attributes to setter functions (for deserialization of responses)
     *
     * @var string[]
     */
    protected static $setters = [
                'next_token' => 'setNextToken',
        'previous_token' => 'setPreviousToken'
    ];

    /**
     * Array of attributes to getter functions (for serialization of requests)
     *
     * @var string[]
     */
    protected static $getters = [
        'next_token' => 'getNextToken',
        'previous_token' => 'getPreviousToken'
    ];

    /**
     * Array of attributes where the key is the local name,
     * and the value is the original name
     *
     * @return array
     */
    public static function attributeMap()
    {
        return self::$attributeMap;
    }

    /**
     * Array of attributes to setter functions (for deserialization of responses)
     *
     * @return array
     */
    public static function setters()
    {
        return self::$setters;
    }

    /**
     * Array of attributes to getter functions (for serialization of requests)
     *
     * @return array
     */
    public static function getters()
    {
        return self::$getters;
    }

    /**
     * The original name of the model.
     *
     * @return string
     */
    public function getModelName()
    {
        return self::$openAPIModelName;
    }
    
    /**
     * Associative array for storing property values
     *
     * @var mixed[]
     */
    protected $container = [];

    /**
     * Constructor
     *
     * @param mixed[] $data Associated array of property values
     *                      initializing the model
     */
    public function __construct(array $data = null)
    {
        $this->container['next_token'] = $data['next_token'] ?? null;
        $this->container['previous_token'] = $data['previous_token'] ?? null;
    }

    /**
     * Show all the invalid properties with reasons.
     *
     * @return array invalid properties with reasons
     */
    public function listInvalidProperties()
    {
        $invalidProperties = [];

        return $invalidProperties;
    }

    /**
     * Validate all the properties in the model
     * return true if all passed
     *
     * @return bool True if all properties are valid
     */
    public function valid()
    {
        return count($this->listInvalidProperties()) === 0;
    }


    /**
     * Gets next_token
     *
     * @return string|null
     */
    public function getNextToken()
    {
        return $this->container['next_token'];
    }

    /**
     * Sets next_token
     *
     * @param string|null $next_token A token that can be used to fetch the next page.
     *
     * @return self
     */
    public function setNextToken($next_token)
    {
        $this->container['next_token'] = $next_token;

        return $this;
    }
    /**
     * Gets previous_token
     *
     * @return string|null
     */
    public function getPreviousToken()
    {
        return $this->container['previous_token'];
    }

    /**
     * Sets previous_token
     *
     * @param string|null $previous_token A token that can be used to fetch the previous page.
     *
     * @return self
     */
    public function setPreviousToken($previous_token)
    {
        $this->container['previous_token'] = $previous_token;

        return $this;
    }

    /**
     * Returns true if offset exists. False otherwise.
     *
     * @param integer $offset Offset
     *
     * @return boolean
     */
    #[\ReturnTypeWillChange]
    public function offsetExists($offset)
    {
        return isset($this->container[$offset]);
    }

    /**
     * Gets offset.
     *
     * @param integer $offset Offset
     *
     * @return mixed|null
     */
    #[\ReturnTypeWillChange]
    public function offsetGet($offset)
    {
        return $this->container[$offset] ?? null;
    }

    /**
     * Sets value based on offset.
     *
     * @param int|null $offset Offset
     * @param mixed    $value  Value to be set
     *
     * @return void
     */
    #[\ReturnTypeWillChange]
    public function offsetSet($offset, $value)
    {
        if (is_null($offset)) {
            $this->container[] = $value;
        } else {
            $this->container[$offset] = $value;
        }
    }

    /**
     * Unsets offset.
     *
     * @param integer $offset Offset
     *
     * @return void
     */
    #[\ReturnTypeWillChange]
    public function offsetUnset($offset)
    {
        unset($this->container[$offset]);
    }

    /**
     * Serializes the object to a value that can be serialized natively by json_encode().
     * @link https://www.php.net/manual/en/jsonserializable.jsonserialize.php
     *
     * @return mixed Returns data which can be serialized by json_encode(), which is a value
     * of any type other than a resource.
     */
    #[\ReturnTypeWillChange]
    public function jsonSerialize()
    {
       return ObjectSerializer::sanitizeForSerialization($this);
    }

    /**
     * Gets the string presentation of the object
     *
     * @return string
     */
    public function __toString()
    {
        return json_encode(
            ObjectSerializer::sanitizeForSerialization($this),
            JSON_PRETTY_PRINT
        );
    }

    /**
     * Gets a header-safe presentation of the object
     *
     * @return string
     */
    public function toHeaderValue()
    {
        return json_encode(ObjectSerializer::sanitizeForSerialization($this));
    }
}


