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<?php
declare(strict_types=1);
/*
* This file is a part of dflydev/dot-access-data.
*
* (c) Dragonfly Development Inc.
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Dflydev\DotAccessData;
use Dflydev\DotAccessData\Exception\DataException;
use Dflydev\DotAccessData\Exception\InvalidPathException;
interface DataInterface
{
public const PRESERVE = 0;
public const REPLACE = 1;
public const MERGE = 2;
/**
* Append a value to a key (assumes key refers to an array value)
*
* If the key does not yet exist it will be created.
* If the key references a non-array it's existing contents will be added into a new array before appending the new value.
*
* @param string $key
* @param mixed $value
*
* @throws InvalidPathException if the given key is empty
*/
public function append(string $key, $value = null): void;
/**
* Set a value for a key
*
* If the key does not yet exist it will be created.
*
* @param string $key
* @param mixed $value
*
* @throws InvalidPathException if the given key is empty
* @throws DataException if the given key does not target an array
*/
public function set(string $key, $value = null): void;
/**
* Remove a key
*
* No exception will be thrown if the key does not exist
*
* @param string $key
*
* @throws InvalidPathException if the given key is empty
*/
public function remove(string $key): void;
/**
* Get the raw value for a key
*
* If the key does not exist, an optional default value can be returned instead.
* If no default is provided then an exception will be thrown instead.
*
* @param string $key
* @param mixed $default
*
* @return mixed
*
* @throws InvalidPathException if the given key is empty
* @throws InvalidPathException if the given key does not exist and no default value was given
*
* @psalm-mutation-free
*/
public function get(string $key, $default = null);
/**
* Check if the key exists
*
* @param string $key
*
* @return bool
*
* @throws InvalidPathException if the given key is empty
*
* @psalm-mutation-free
*/
public function has(string $key): bool;
/**
* Get a data instance for a key
*
* @param string $key
*
* @return DataInterface
*
* @throws InvalidPathException if the given key is empty
* @throws DataException if the given key does not reference an array
*
* @psalm-mutation-free
*/
public function getData(string $key): DataInterface;
/**
* Import data into existing data
*
* @param array<string, mixed> $data
* @param self::PRESERVE|self::REPLACE|self::MERGE $mode
*/
public function import(array $data, int $mode = self::REPLACE): void;
/**
* Import data from an external data into existing data
*
* @param DataInterface $data
* @param self::PRESERVE|self::REPLACE|self::MERGE $mode
*/
public function importData(DataInterface $data, int $mode = self::REPLACE): void;
/**
* Export data as raw data
*
* @return array<string, mixed>
*
* @psalm-mutation-free
*/
public function export(): array;
}