<?php

/*

 *  $Id$

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 *

 * This software consists of voluntary contributions made by many individuals

 * and is licensed under the LGPL. For more information, see

 * <http://www.doctrine-project.org>.

 */

namespace Doctrine\Common\Util;

/**

 * Static class containing most used debug methods.

 *

 * @license http://www.opensource.org/licenses/lgpl-license.php LGPL

 * @link    www.doctrine-project.org

 * @since   2.0

 * @version $Revision: 3938 $

 * @author  Guilherme Blanco <guilhermeblanco@hotmail.com>

 * @author  Jonathan Wage <jonwage@gmail.com>

 * @author  Roman Borschel <roman@code-factory.org>

 * @author  Giorgio Sironi <piccoloprincipeazzurro@gmail.com>

 */

final class Debug

{

    /**

     * Private constructor (prevents from instantiation)

     *

     */

    private function __construct() {}

    /**

     * Prints a dump of the public, protected and private properties of $var.

     *

     * @static

     * @link http://xdebug.org/

     * @param mixed $var

     * @param integer $maxDepth Maximum nesting level for object properties

     */

    public static function dump($var, $maxDepth = 2)

    {

        ini_set('html_errors', 'On');

        if (extension_loaded('xdebug')) {

            ini_set('xdebug.var_display_max_depth', $maxDepth);

        }

        $var = self::export($var, $maxDepth++);

        ob_start();

        var_dump($var);

        $dump = ob_get_contents();

        ob_end_clean();

        echo strip_tags(html_entity_decode($dump));

        ini_set('html_errors', 'Off');

    }

    public static function export($var, $maxDepth)

    {

        $return = null;

        $isObj = is_object($var);

        if ($isObj && in_array('Doctrine\Common\Collections\Collection', class_implements($var))) {

            $var = $var->toArray();

        }

        if ($maxDepth) {

            if (is_array($var)) {

                $return = array();

                foreach ($var as $k => $v) {

                    $return[$k] = self::export($v, $maxDepth - 1);

                }

            } else if ($isObj) {

                if ($var instanceof \DateTime) {

                    $return = $var->format('c');

                } else {

                    $reflClass = new \ReflectionClass(get_class($var));

                    $return = new \stdclass();

                    $return->{'__CLASS__'} = get_class($var);

                    if ($var instanceof \Doctrine\ORM\Proxy\Proxy && ! $var->__isInitialized__) {

                        $reflProperty = $reflClass->getProperty('_identifier');

                        $reflProperty->setAccessible(true);

                        foreach ($reflProperty->getValue($var) as $name => $value) {

                            $return->$name = self::export($value, $maxDepth - 1);

                        }

                    } else {

                        $excludeProperties = array();

                        if ($var instanceof \Doctrine\ORM\Proxy\Proxy) {

                            $excludeProperties = array('_entityPersister', '__isInitialized__', '_identifier');

                        }

                        foreach ($reflClass->getProperties() as $reflProperty) {

                            $name  = $reflProperty->getName();

                            if ( ! in_array($name, $excludeProperties)) {

                                $reflProperty->setAccessible(true);

                                $return->$name = self::export($reflProperty->getValue($var), $maxDepth - 1);

                            }

                        }

                    }

                }

            } else {

                $return = $var;

            }

        } else {

            $return = is_object($var) ? get_class($var) 

                : (is_array($var) ? 'Array(' . count($var) . ')' : $var);

        }

        return $return;

    }

    public static function toString($obj)

    {

        return method_exists('__toString', $obj) ? (string) $obj : get_class($obj) . '@' . spl_object_hash($obj);

    }

}