<?php
/**
 * PaginationMeta
 *
 * PHP version 8.1
 *
 * @category Class
 * @package  WikipaliApi
 * @author   OpenAPI Generator team
 * @link     https://openapi-generator.tech
 */

/**
 * MINT API
 *
 * International Academy Of Pali Tipitaka(国际巴利三藏学院)  由 `php openapi/scripts/generate.php` 依据 api-v13 的路由与控制器源码生成。 响应统一封装为 `{ok, message, data}`；`ok=false` 时 `message` 为错误信息。
 *
 * The version of the OpenAPI document: 2026.9.28
 * Generated by: https://openapi-generator.tech
 * Generator version: 7.25.0
 */

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

namespace WikipaliApi\Model;

use \ArrayAccess;
use \WikipaliApi\ObjectSerializer;

/**
 * PaginationMeta Class Doc Comment
 *
 * @category Class
 * @description v3 列表接口的分页信息，由 Laravel paginator 生成。 刻意不含 links / path：那些是 APP_URL 拼出的绝对地址，反代下会拼错，前端也用不到。 手工分页的接口会附加自己的字段（如 has_more / first_para / page_size）。
 * @package  WikipaliApi
 * @author   OpenAPI Generator team
 * @link     https://openapi-generator.tech
 * @implements \ArrayAccess<string, mixed>
 */
class PaginationMeta implements ModelInterface, ArrayAccess, \JsonSerializable
{
    public const DISCRIMINATOR = null;

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

    /**
     * Array of property to type mappings. Used for (de)serialization
     *
     * @var string[]
     */
    protected static $openAPITypes = [
        'current_page' => 'int',
        'per_page' => 'int',
        'total' => 'int',
        'last_page' => 'int',
        'from' => 'int',
        'to' => 'int'
    ];

    /**
     * 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 = [
        'current_page' => null,
        'per_page' => null,
        'total' => null,
        'last_page' => null,
        'from' => null,
        'to' => null
    ];

    /**
     * Array of nullable properties. Used for (de)serialization
     *
     * @var boolean[]
     */
    protected static array $openAPINullables = [
        'current_page' => false,
        'per_page' => false,
        'total' => false,
        'last_page' => false,
        'from' => true,
        'to' => true
    ];

    /**
     * If a nullable field gets set to null, insert it here
     *
     * @var boolean[]
     */
    protected array $openAPINullablesSetToNull = [];

    /**
     * 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 nullable properties
     *
     * @return array
     */
    protected static function openAPINullables(): array
    {
        return self::$openAPINullables;
    }

    /**
     * Array of nullable field names deliberately set to null
     *
     * @return boolean[]
     */
    private function getOpenAPINullablesSetToNull(): array
    {
        return $this->openAPINullablesSetToNull;
    }

    /**
     * Setter - Array of nullable field names deliberately set to null
     *
     * @param boolean[] $openAPINullablesSetToNull
     */
    private function setOpenAPINullablesSetToNull(array $openAPINullablesSetToNull): void
    {
        $this->openAPINullablesSetToNull = $openAPINullablesSetToNull;
    }

    /**
     * Checks if a property is nullable
     *
     * @param string $property
     * @return bool
     */
    public static function isNullable(string $property): bool
    {
        return self::openAPINullables()[$property] ?? false;
    }

    /**
     * Checks if a nullable property is set to null.
     *
     * @param string $property
     * @return bool
     */
    public function isNullableSetToNull(string $property): bool
    {
        return in_array($property, $this->getOpenAPINullablesSetToNull(), true);
    }

    /**
     * Array of attributes where the key is the local name,
     * and the value is the original name
     *
     * @var string[]
     */
    protected static $attributeMap = [
        'current_page' => 'current_page',
        'per_page' => 'per_page',
        'total' => 'total',
        'last_page' => 'last_page',
        'from' => 'from',
        'to' => 'to'
    ];

    /**
     * Array of attributes to setter functions (for deserialization of responses)
     *
     * @var string[]
     */
    protected static $setters = [
        'current_page' => 'setCurrentPage',
        'per_page' => 'setPerPage',
        'total' => 'setTotal',
        'last_page' => 'setLastPage',
        'from' => 'setFrom',
        'to' => 'setTo'
    ];

    /**
     * Array of attributes to getter functions (for serialization of requests)
     *
     * @var string[]
     */
    protected static $getters = [
        'current_page' => 'getCurrentPage',
        'per_page' => 'getPerPage',
        'total' => 'getTotal',
        'last_page' => 'getLastPage',
        'from' => 'getFrom',
        'to' => 'getTo'
    ];

    /**
     * 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[]|null $data Associated array of property values
     *                      initializing the model
     */
    public function __construct(?array $data = null)
    {
        $this->setIfExists('current_page', $data ?? [], null);
        $this->setIfExists('per_page', $data ?? [], null);
        $this->setIfExists('total', $data ?? [], null);
        $this->setIfExists('last_page', $data ?? [], null);
        $this->setIfExists('from', $data ?? [], null);
        $this->setIfExists('to', $data ?? [], null);
    }

    /**
     * Sets $this->container[$variableName] to the given data or to the given default Value; if $variableName
     * is nullable and its value is set to null in the $fields array, then mark it as "set to null" in the
     * $this->openAPINullablesSetToNull array
     *
     * @param string $variableName
     * @param array  $fields
     * @param mixed  $defaultValue
     */
    private function setIfExists(string $variableName, array $fields, $defaultValue): void
    {
        if (self::isNullable($variableName) && array_key_exists($variableName, $fields) && is_null($fields[$variableName])) {
            $this->openAPINullablesSetToNull[] = $variableName;
        }

        $this->container[$variableName] = $fields[$variableName] ?? $defaultValue;
    }

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

        if ($this->container['current_page'] === null) {
            $invalidProperties[] = "'current_page' can't be null";
        }
        if ($this->container['total'] === null) {
            $invalidProperties[] = "'total' can't be null";
        }
        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 current_page
     *
     * @return int
     */
    public function getCurrentPage()
    {
        return $this->container['current_page'];
    }

    /**
     * Sets current_page
     *
     * @param int $current_page current_page
     *
     * @return self
     */
    public function setCurrentPage($current_page)
    {
        if (is_null($current_page)) {
            throw new \InvalidArgumentException('non-nullable current_page cannot be null');
        }
        $this->container['current_page'] = $current_page;

        return $this;
    }

    /**
     * Gets per_page
     *
     * @return int|null
     */
    public function getPerPage()
    {
        return $this->container['per_page'];
    }

    /**
     * Sets per_page
     *
     * @param int|null $per_page per_page
     *
     * @return self
     */
    public function setPerPage($per_page)
    {
        if (is_null($per_page)) {
            throw new \InvalidArgumentException('non-nullable per_page cannot be null');
        }
        $this->container['per_page'] = $per_page;

        return $this;
    }

    /**
     * Gets total
     *
     * @return int
     */
    public function getTotal()
    {
        return $this->container['total'];
    }

    /**
     * Sets total
     *
     * @param int $total total
     *
     * @return self
     */
    public function setTotal($total)
    {
        if (is_null($total)) {
            throw new \InvalidArgumentException('non-nullable total cannot be null');
        }
        $this->container['total'] = $total;

        return $this;
    }

    /**
     * Gets last_page
     *
     * @return int|null
     */
    public function getLastPage()
    {
        return $this->container['last_page'];
    }

    /**
     * Sets last_page
     *
     * @param int|null $last_page last_page
     *
     * @return self
     */
    public function setLastPage($last_page)
    {
        if (is_null($last_page)) {
            throw new \InvalidArgumentException('non-nullable last_page cannot be null');
        }
        $this->container['last_page'] = $last_page;

        return $this;
    }

    /**
     * Gets from
     *
     * @return int|null
     */
    public function getFrom()
    {
        return $this->container['from'];
    }

    /**
     * Sets from
     *
     * @param int|null $from from
     *
     * @return self
     */
    public function setFrom($from)
    {
        if (is_null($from)) {
            array_push($this->openAPINullablesSetToNull, 'from');
        } else {
            $nullablesSetToNull = $this->getOpenAPINullablesSetToNull();
            $index = array_search('from', $nullablesSetToNull);
            if ($index !== FALSE) {
                unset($nullablesSetToNull[$index]);
                $this->setOpenAPINullablesSetToNull($nullablesSetToNull);
            }
        }
        $this->container['from'] = $from;

        return $this;
    }

    /**
     * Gets to
     *
     * @return int|null
     */
    public function getTo()
    {
        return $this->container['to'];
    }

    /**
     * Sets to
     *
     * @param int|null $to to
     *
     * @return self
     */
    public function setTo($to)
    {
        if (is_null($to)) {
            array_push($this->openAPINullablesSetToNull, 'to');
        } else {
            $nullablesSetToNull = $this->getOpenAPINullablesSetToNull();
            $index = array_search('to', $nullablesSetToNull);
            if ($index !== FALSE) {
                unset($nullablesSetToNull[$index]);
                $this->setOpenAPINullablesSetToNull($nullablesSetToNull);
            }
        }
        $this->container['to'] = $to;

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

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

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

    /**
     * Unsets offset.
     *
     * @param integer|string $offset Offset
     *
     * @return void
     */
    public function offsetUnset(mixed $offset): void
    {
        unset($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));
    }
}