Chris@17: <?php
Chris@17: 
Chris@17: /*
Chris@17:  * This file is a part of dflydev/dot-access-data.
Chris@17:  *
Chris@17:  * (c) Dragonfly Development Inc.
Chris@17:  *
Chris@17:  * For the full copyright and license information, please view the LICENSE
Chris@17:  * file that was distributed with this source code.
Chris@17:  */
Chris@17: 
Chris@17: namespace Dflydev\DotAccessData;
Chris@17: 
Chris@17: class Data implements DataInterface
Chris@17: {
Chris@17:     /**
Chris@17:      * Internal representation of data data
Chris@17:      *
Chris@17:      * @var array
Chris@17:      */
Chris@17:     protected $data;
Chris@17: 
Chris@17:     /**
Chris@17:      * Constructor
Chris@17:      *
Chris@17:      * @param array|null $data
Chris@17:      */
Chris@17:     public function __construct(array $data = null)
Chris@17:     {
Chris@17:         $this->data = $data ?: array();
Chris@17:     }
Chris@17: 
Chris@17:     /**
Chris@17:      * {@inheritdoc}
Chris@17:      */
Chris@17:     public function append($key, $value = null)
Chris@17:     {
Chris@17:         if (0 == strlen($key)) {
Chris@17:             throw new \RuntimeException("Key cannot be an empty string");
Chris@17:         }
Chris@17: 
Chris@17:         $currentValue =& $this->data;
Chris@17:         $keyPath = explode('.', $key);
Chris@17: 
Chris@17:         if (1 == count($keyPath)) {
Chris@17:             if (!isset($currentValue[$key])) {
Chris@17:                 $currentValue[$key] = array();
Chris@17:             }
Chris@17:             if (!is_array($currentValue[$key])) {
Chris@17:                 // Promote this key to an array.
Chris@17:                 // TODO: Is this really what we want to do?
Chris@17:                 $currentValue[$key] = array($currentValue[$key]);
Chris@17:             }
Chris@17:             $currentValue[$key][] = $value;
Chris@17: 
Chris@17:             return;
Chris@17:         }
Chris@17: 
Chris@17:         $endKey = array_pop($keyPath);
Chris@17:         for ( $i = 0; $i < count($keyPath); $i++ ) {
Chris@17:             $currentKey =& $keyPath[$i];
Chris@17:             if ( ! isset($currentValue[$currentKey]) ) {
Chris@17:                 $currentValue[$currentKey] = array();
Chris@17:             }
Chris@17:             $currentValue =& $currentValue[$currentKey];
Chris@17:         }
Chris@17: 
Chris@17:         if (!isset($currentValue[$endKey])) {
Chris@17:             $currentValue[$endKey] = array();
Chris@17:         }
Chris@17:         if (!is_array($currentValue[$endKey])) {
Chris@17:             $currentValue[$endKey] = array($currentValue[$endKey]);
Chris@17:         }
Chris@17:         // Promote this key to an array.
Chris@17:         // TODO: Is this really what we want to do?
Chris@17:         $currentValue[$endKey][] = $value;
Chris@17:     }
Chris@17: 
Chris@17:     /**
Chris@17:      * {@inheritdoc}
Chris@17:      */
Chris@17:     public function set($key, $value = null)
Chris@17:     {
Chris@17:         if (0 == strlen($key)) {
Chris@17:             throw new \RuntimeException("Key cannot be an empty string");
Chris@17:         }
Chris@17: 
Chris@17:         $currentValue =& $this->data;
Chris@17:         $keyPath = explode('.', $key);
Chris@17: 
Chris@17:         if (1 == count($keyPath)) {
Chris@17:             $currentValue[$key] = $value;
Chris@17: 
Chris@17:             return;
Chris@17:         }
Chris@17: 
Chris@17:         $endKey = array_pop($keyPath);
Chris@17:         for ( $i = 0; $i < count($keyPath); $i++ ) {
Chris@17:             $currentKey =& $keyPath[$i];
Chris@17:             if (!isset($currentValue[$currentKey])) {
Chris@17:                 $currentValue[$currentKey] = array();
Chris@17:             }
Chris@17:             if (!is_array($currentValue[$currentKey])) {
Chris@17:                 throw new \RuntimeException("Key path at $currentKey of $key cannot be indexed into (is not an array)");
Chris@17:             }
Chris@17:             $currentValue =& $currentValue[$currentKey];
Chris@17:         }
Chris@17:         $currentValue[$endKey] = $value;
Chris@17:     }
Chris@17: 
Chris@17:     /**
Chris@17:      * {@inheritdoc}
Chris@17:      */
Chris@17:     public function remove($key)
Chris@17:     {
Chris@17:         if (0 == strlen($key)) {
Chris@17:             throw new \RuntimeException("Key cannot be an empty string");
Chris@17:         }
Chris@17: 
Chris@17:         $currentValue =& $this->data;
Chris@17:         $keyPath = explode('.', $key);
Chris@17: 
Chris@17:         if (1 == count($keyPath)) {
Chris@17:             unset($currentValue[$key]);
Chris@17: 
Chris@17:             return;
Chris@17:         }
Chris@17: 
Chris@17:         $endKey = array_pop($keyPath);
Chris@17:         for ( $i = 0; $i < count($keyPath); $i++ ) {
Chris@17:             $currentKey =& $keyPath[$i];
Chris@17:             if (!isset($currentValue[$currentKey])) {
Chris@17:                 return;
Chris@17:             }
Chris@17:             $currentValue =& $currentValue[$currentKey];
Chris@17:         }
Chris@17:         unset($currentValue[$endKey]);
Chris@17:     }
Chris@17: 
Chris@17:     /**
Chris@17:      * {@inheritdoc}
Chris@17:      */
Chris@17:     public function get($key, $default = null)
Chris@17:     {
Chris@17:         $currentValue = $this->data;
Chris@17:         $keyPath = explode('.', $key);
Chris@17: 
Chris@17:         for ( $i = 0; $i < count($keyPath); $i++ ) {
Chris@17:             $currentKey = $keyPath[$i];
Chris@17:             if (!isset($currentValue[$currentKey]) ) {
Chris@17:                 return $default;
Chris@17:             }
Chris@17:             if (!is_array($currentValue)) {
Chris@17:                 return $default;
Chris@17:             }
Chris@17:             $currentValue = $currentValue[$currentKey];
Chris@17:         }
Chris@17: 
Chris@17:         return $currentValue === null ? $default : $currentValue;
Chris@17:     }
Chris@17: 
Chris@17:     /**
Chris@17:      * {@inheritdoc}
Chris@17:      */
Chris@17:     public function has($key)
Chris@17:     {
Chris@17:         $currentValue = &$this->data;
Chris@17:         $keyPath = explode('.', $key);
Chris@17: 
Chris@17:         for ( $i = 0; $i < count($keyPath); $i++ ) {
Chris@17:             $currentKey = $keyPath[$i];
Chris@17:             if (
Chris@17:                 !is_array($currentValue) ||
Chris@17:                 !array_key_exists($currentKey, $currentValue)
Chris@17:             ) {
Chris@17:                 return false;
Chris@17:             }
Chris@17:             $currentValue = &$currentValue[$currentKey];
Chris@17:         }
Chris@17: 
Chris@17:         return true;
Chris@17:     }
Chris@17: 
Chris@17:     /**
Chris@17:      * {@inheritdoc}
Chris@17:      */
Chris@17:     public function getData($key)
Chris@17:     {
Chris@17:         $value = $this->get($key);
Chris@17:         if (is_array($value) && Util::isAssoc($value)) {
Chris@17:             return new Data($value);
Chris@17:         }
Chris@17: 
Chris@17:         throw new \RuntimeException("Value at '$key' could not be represented as a DataInterface");
Chris@17:     }
Chris@17: 
Chris@17:     /**
Chris@17:      * {@inheritdoc}
Chris@17:      */
Chris@17:     public function import(array $data, $clobber = true)
Chris@17:     {
Chris@17:         $this->data = Util::mergeAssocArray($this->data, $data, $clobber);
Chris@17:     }
Chris@17: 
Chris@17:     /**
Chris@17:      * {@inheritdoc}
Chris@17:      */
Chris@17:     public function importData(DataInterface $data, $clobber = true)
Chris@17:     {
Chris@17:         $this->import($data->export(), $clobber);
Chris@17:     }
Chris@17: 
Chris@17:     /**
Chris@17:      * {@inheritdoc}
Chris@17:      */
Chris@17:     public function export()
Chris@17:     {
Chris@17:         return $this->data;
Chris@17:     }
Chris@17: }