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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 ArrayAccess;
use Dflydev\DotAccessData\Exception\DataException;
use Dflydev\DotAccessData\Exception\InvalidPathException;
use Dflydev\DotAccessData\Exception\MissingPathException;
/**
* @implements ArrayAccess<string, mixed>
*/
class Data implements DataInterface, ArrayAccess
{
private const DELIMITERS = ['.', '/'];
/**
* Internal representation of data data
*
* @var array<string, mixed>
*/
protected $data;
/**
* Constructor
*
* @param array<string, mixed> $data
*/
public function __construct(array $data = [])
{
$this->data = $data;
}
/**
* {@inheritdoc}
*/
public function append(string $key, $value = null): void
{
$currentValue =& $this->data;
$keyPath = self::keyToPathArray($key);
$endKey = array_pop($keyPath);
foreach ($keyPath as $currentKey) {
if (! isset($currentValue[$currentKey])) {
$currentValue[$currentKey] = [];
}
$currentValue =& $currentValue[$currentKey];
}
if (!isset($currentValue[$endKey])) {
$currentValue[$endKey] = [];
}
if (!is_array($currentValue[$endKey])) {
// Promote this key to an array.
// TODO: Is this really what we want to do?
$currentValue[$endKey] = [$currentValue[$endKey]];
}
$currentValue[$endKey][] = $value;
}
/**
* {@inheritdoc}
*/
public function set(string $key, $value = null): void
{
$currentValue =& $this->data;
$keyPath = self::keyToPathArray($key);
$endKey = array_pop($keyPath);
foreach ($keyPath as $currentKey) {
if (!isset($currentValue[$currentKey])) {
$currentValue[$currentKey] = [];
}
if (!is_array($currentValue[$currentKey])) {
throw new DataException(sprintf('Key path "%s" within "%s" cannot be indexed into (is not an array)', $currentKey, self::formatPath($key)));
}
$currentValue =& $currentValue[$currentKey];
}
$currentValue[$endKey] = $value;
}
/**
* {@inheritdoc}
*/
public function remove(string $key): void
{
$currentValue =& $this->data;
$keyPath = self::keyToPathArray($key);
$endKey = array_pop($keyPath);
foreach ($keyPath as $currentKey) {
if (!isset($currentValue[$currentKey])) {
return;
}
$currentValue =& $currentValue[$currentKey];
}
unset($currentValue[$endKey]);
}
/**
* {@inheritdoc}
*
* @psalm-mutation-free
*/
public function get(string $key, $default = null)
{
/** @psalm-suppress ImpureFunctionCall */
$hasDefault = \func_num_args() > 1;
$currentValue = $this->data;
$keyPath = self::keyToPathArray($key);
foreach ($keyPath as $currentKey) {
if (!is_array($currentValue) || !array_key_exists($currentKey, $currentValue)) {
if ($hasDefault) {
return $default;
}
throw new MissingPathException($key, sprintf('No data exists at the given path: "%s"', self::formatPath($keyPath)));
}
$currentValue = $currentValue[$currentKey];
}
return $currentValue === null ? $default : $currentValue;
}
/**
* {@inheritdoc}
*
* @psalm-mutation-free
*/
public function has(string $key): bool
{
$currentValue = $this->data;
foreach (self::keyToPathArray($key) as $currentKey) {
if (
!is_array($currentValue) ||
!array_key_exists($currentKey, $currentValue)
) {
return false;
}
$currentValue = $currentValue[$currentKey];
}
return true;
}
/**
* {@inheritdoc}
*
* @psalm-mutation-free
*/
public function getData(string $key): DataInterface
{
$value = $this->get($key);
if (is_array($value) && Util::isAssoc($value)) {
return new Data($value);
}
throw new DataException(sprintf('Value at "%s" could not be represented as a DataInterface', self::formatPath($key)));
}
/**
* {@inheritdoc}
*/
public function import(array $data, int $mode = self::REPLACE): void
{
$this->data = Util::mergeAssocArray($this->data, $data, $mode);
}
/**
* {@inheritdoc}
*/
public function importData(DataInterface $data, int $mode = self::REPLACE): void
{
$this->import($data->export(), $mode);
}
/**
* {@inheritdoc}
*
* @psalm-mutation-free
*/
public function export(): array
{
return $this->data;
}
/**
* {@inheritdoc}
*
* @return bool
*/
#[\ReturnTypeWillChange]
public function offsetExists($key)
{
return $this->has($key);
}
/**
* {@inheritdoc}
*
* @return mixed
*/
#[\ReturnTypeWillChange]
public function offsetGet($key)
{
return $this->get($key, null);
}
/**
* {@inheritdoc}
*
* @param string $key
* @param mixed $value
*
* @return void
*/
#[\ReturnTypeWillChange]
public function offsetSet($key, $value)
{
$this->set($key, $value);
}
/**
* {@inheritdoc}
*
* @return void
*/
#[\ReturnTypeWillChange]
public function offsetUnset($key)
{
$this->remove($key);
}
/**
* @param string $path
*
* @return string[]
*
* @psalm-return non-empty-list<string>
*
* @psalm-pure
*/
protected static function keyToPathArray(string $path): array
{
if (\strlen($path) === 0) {
throw new InvalidPathException('Path cannot be an empty string');
}
$path = \str_replace(self::DELIMITERS, '.', $path);
return \explode('.', $path);
}
/**
* @param string|string[] $path
*
* @return string
*
* @psalm-pure
*/
protected static function formatPath($path): string
{
if (is_string($path)) {
$path = self::keyToPathArray($path);
}
return implode(' ยป ', $path);
}
}