Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is part of the Prophecy.
Chris@0:  * (c) Konstantin Kudryashov <ever.zet@gmail.com>
Chris@0:  *     Marcello Duarte <marcello.duarte@gmail.com>
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace Prophecy\Argument\Token;
Chris@0: 
Chris@0: use Prophecy\Exception\InvalidArgumentException;
Chris@0: 
Chris@0: /**
Chris@0:  * Array entry token.
Chris@0:  *
Chris@0:  * @author Boris Mikhaylov <kaguxmail@gmail.com>
Chris@0:  */
Chris@0: class ArrayEntryToken implements TokenInterface
Chris@0: {
Chris@0:     /** @var \Prophecy\Argument\Token\TokenInterface */
Chris@0:     private $key;
Chris@0:     /** @var \Prophecy\Argument\Token\TokenInterface */
Chris@0:     private $value;
Chris@0: 
Chris@0:     /**
Chris@0:      * @param mixed $key   exact value or token
Chris@0:      * @param mixed $value exact value or token
Chris@0:      */
Chris@0:     public function __construct($key, $value)
Chris@0:     {
Chris@0:         $this->key = $this->wrapIntoExactValueToken($key);
Chris@0:         $this->value = $this->wrapIntoExactValueToken($value);
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Scores half of combined scores from key and value tokens for same entry. Capped at 8.
Chris@0:      * If argument implements \ArrayAccess without \Traversable, then key token is restricted to ExactValueToken.
Chris@0:      *
Chris@0:      * @param array|\ArrayAccess|\Traversable $argument
Chris@0:      *
Chris@0:      * @throws \Prophecy\Exception\InvalidArgumentException
Chris@0:      * @return bool|int
Chris@0:      */
Chris@0:     public function scoreArgument($argument)
Chris@0:     {
Chris@0:         if ($argument instanceof \Traversable) {
Chris@0:             $argument = iterator_to_array($argument);
Chris@0:         }
Chris@0: 
Chris@0:         if ($argument instanceof \ArrayAccess) {
Chris@0:             $argument = $this->convertArrayAccessToEntry($argument);
Chris@0:         }
Chris@0: 
Chris@0:         if (!is_array($argument) || empty($argument)) {
Chris@0:             return false;
Chris@0:         }
Chris@0: 
Chris@0:         $keyScores = array_map(array($this->key,'scoreArgument'), array_keys($argument));
Chris@0:         $valueScores = array_map(array($this->value,'scoreArgument'), $argument);
Chris@0:         $scoreEntry = function ($value, $key) {
Chris@0:             return $value && $key ? min(8, ($key + $value) / 2) : false;
Chris@0:         };
Chris@0: 
Chris@0:         return max(array_map($scoreEntry, $valueScores, $keyScores));
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Returns false.
Chris@0:      *
Chris@0:      * @return boolean
Chris@0:      */
Chris@0:     public function isLast()
Chris@0:     {
Chris@0:         return false;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Returns string representation for token.
Chris@0:      *
Chris@0:      * @return string
Chris@0:      */
Chris@0:     public function __toString()
Chris@0:     {
Chris@0:         return sprintf('[..., %s => %s, ...]', $this->key, $this->value);
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Returns key
Chris@0:      *
Chris@0:      * @return TokenInterface
Chris@0:      */
Chris@0:     public function getKey()
Chris@0:     {
Chris@0:         return $this->key;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Returns value
Chris@0:      *
Chris@0:      * @return TokenInterface
Chris@0:      */
Chris@0:     public function getValue()
Chris@0:     {
Chris@0:         return $this->value;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Wraps non token $value into ExactValueToken
Chris@0:      *
Chris@0:      * @param $value
Chris@0:      * @return TokenInterface
Chris@0:      */
Chris@0:     private function wrapIntoExactValueToken($value)
Chris@0:     {
Chris@0:         return $value instanceof TokenInterface ? $value : new ExactValueToken($value);
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Converts instance of \ArrayAccess to key => value array entry
Chris@0:      *
Chris@0:      * @param \ArrayAccess $object
Chris@0:      *
Chris@0:      * @return array|null
Chris@0:      * @throws \Prophecy\Exception\InvalidArgumentException
Chris@0:      */
Chris@0:     private function convertArrayAccessToEntry(\ArrayAccess $object)
Chris@0:     {
Chris@0:         if (!$this->key instanceof ExactValueToken) {
Chris@0:             throw new InvalidArgumentException(sprintf(
Chris@0:                 'You can only use exact value tokens to match key of ArrayAccess object'.PHP_EOL.
Chris@0:                 'But you used `%s`.',
Chris@0:                 $this->key
Chris@0:             ));
Chris@0:         }
Chris@0: 
Chris@0:         $key = $this->key->getValue();
Chris@0: 
Chris@0:         return $object->offsetExists($key) ? array($key => $object[$key]) : array();
Chris@0:     }
Chris@0: }