<?php
/**
 * InvoiceItem
 *
 * PHP version 7.4
 *
 * @category Class
 * @package  Xendit
 */

/**
 * xendit-invoice-service
 *
 * The version of the OpenAPI document: 1.9.0
 */

/**
 * NOTE: This class is auto generated.
 * Do not edit the class manually.
 */

namespace Xendit\Invoice;


use \ArrayAccess;
use \Xendit\ObjectSerializer;
use \Xendit\Model\ModelInterface;

/**
 * InvoiceItem Class Doc Comment
 *
 * @category Class
 * @description An object representing an item within an invoice.
 * @package  Xendit
 * @implements \ArrayAccess<string, mixed>
 */
class InvoiceItem implements ModelInterface, ArrayAccess, \JsonSerializable
{
    public const DISCRIMINATOR = null;

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

    /**
      * Array of property to type mappings. Used for (de)serialization
      *
      * @var string[]
      */
    protected static $openAPITypes = [
        'name' => 'string',
        'price' => 'float',
        'quantity' => 'float',
        'reference_id' => 'string',
        'url' => 'string',
        'category' => '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 = [
        'name' => null,
        'price' => null,
        'quantity' => null,
        'reference_id' => null,
        'url' => null,
        'category' => null
    ];

    /**
      * Array of nullable properties. Used for (de)serialization
      *
      * @var boolean[]
      */
    protected static array $openAPINullables = [
        'name' => false,
		'price' => false,
		'quantity' => false,
		'reference_id' => false,
		'url' => false,
		'category' => false
    ];

    /**
      * 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 = [
        'name' => 'name',
        'price' => 'price',
        'quantity' => 'quantity',
        'reference_id' => 'reference_id',
        'url' => 'url',
        'category' => 'category'
    ];

    /**
     * Array of attributes to setter functions (for deserialization of responses)
     *
     * @var string[]
     */
    protected static $setters = [
        'name' => 'setName',
        'price' => 'setPrice',
        'quantity' => 'setQuantity',
        'reference_id' => 'setReferenceId',
        'url' => 'setUrl',
        'category' => 'setCategory'
    ];

    /**
     * Array of attributes to getter functions (for serialization of requests)
     *
     * @var string[]
     */
    protected static $getters = [
        'name' => 'getName',
        'price' => 'getPrice',
        'quantity' => 'getQuantity',
        'reference_id' => 'getReferenceId',
        'url' => 'getUrl',
        'category' => 'getCategory'
    ];

    /**
     * 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->setIfExists('name', $data ?? [], null);
        $this->setIfExists('price', $data ?? [], null);
        $this->setIfExists('quantity', $data ?? [], null);
        $this->setIfExists('reference_id', $data ?? [], null);
        $this->setIfExists('url', $data ?? [], null);
        $this->setIfExists('category', $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['name'] === null) {
            $invalidProperties[] = "'name' can't be null";
        }
        if ($this->container['price'] === null) {
            $invalidProperties[] = "'price' can't be null";
        }
        if ($this->container['quantity'] === null) {
            $invalidProperties[] = "'quantity' can't be null";
        }
        if (($this->container['quantity'] <= 0)) {
            $invalidProperties[] = "invalid value for 'quantity', must be bigger than 0.";
        }

        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 name
     *
     * @return string
     */
    public function getName()
    {
        return $this->container['name'];
    }

    /**
     * Sets name
     *
     * @param string $name The name of the item.
     *
     * @return self
     */
    public function setName($name)
    {
        if (is_null($name)) {
            throw new \InvalidArgumentException('non-nullable name cannot be null');
        }
        $this->container['name'] = $name;

        return $this;
    }

    /**
     * Gets price
     *
     * @return float
     */
    public function getPrice()
    {
        return $this->container['price'];
    }

    /**
     * Sets price
     *
     * @param float $price The price of the item.
     *
     * @return self
     */
    public function setPrice($price)
    {
        if (is_null($price)) {
            throw new \InvalidArgumentException('non-nullable price cannot be null');
        }
        $this->container['price'] = $price;

        return $this;
    }

    /**
     * Gets quantity
     *
     * @return float
     */
    public function getQuantity()
    {
        return $this->container['quantity'];
    }

    /**
     * Sets quantity
     *
     * @param float $quantity The quantity of the item. Must be greater than or equal to 0.
     *
     * @return self
     */
    public function setQuantity($quantity)
    {
        if (is_null($quantity)) {
            throw new \InvalidArgumentException('non-nullable quantity cannot be null');
        }

        if (($quantity <= 0)) {
            throw new \InvalidArgumentException('invalid value for $quantity when calling InvoiceItem., must be bigger than 0.');
        }

        $this->container['quantity'] = $quantity;

        return $this;
    }

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

    /**
     * Sets reference_id
     *
     * @param string|null $reference_id The reference ID of the item.
     *
     * @return self
     */
    public function setReferenceId($reference_id)
    {
        if (is_null($reference_id)) {
            throw new \InvalidArgumentException('non-nullable reference_id cannot be null');
        }
        $this->container['reference_id'] = $reference_id;

        return $this;
    }

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

    /**
     * Sets url
     *
     * @param string|null $url The URL associated with the item.
     *
     * @return self
     */
    public function setUrl($url)
    {
        if (is_null($url)) {
            throw new \InvalidArgumentException('non-nullable url cannot be null');
        }
        $this->container['url'] = $url;

        return $this;
    }

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

    /**
     * Sets category
     *
     * @param string|null $category The category of the item.
     *
     * @return self
     */
    public function setCategory($category)
    {
        if (is_null($category)) {
            throw new \InvalidArgumentException('non-nullable category cannot be null');
        }
        $this->container['category'] = $category;

        return $this;
    }
    /**
     * Returns true if offset exists. False otherwise.
     *
     * @param integer $offset Offset
     *
     * @return boolean
     */
    public function offsetExists($offset): bool
    {
        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    $value  Value to be set
     *
     * @return void
     */
    public function offsetSet($offset, $value): void
    {
        if (is_null($offset)) {
            $this->container[] = $value;
        } else {
            $this->container[$offset] = $value;
        }
    }

    /**
     * Unsets offset.
     *
     * @param integer $offset Offset
     *
     * @return void
     */
    public function offsetUnset($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));
    }
}


