<?php
/**
 * $Id: PHPUnitUtil.php 792 2010-06-24 12:56:45Z mrook $
 *
 * 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 please see
 * <http://phing.info>.
 */

/**
 * Various utility functions
 *
 * @author Michiel Rook <michiel.rook@gmail.com>
 * @version $Id: PHPUnitUtil.php 792 2010-06-24 12:56:45Z mrook $
 * @package phing.tasks.ext.phpunit
 * @since 2.1.0
 */
class PHPUnitUtil
{
    protected static $definedClasses = array();
    
    /**
     * Returns the package of a class as defined in the docblock of the class using @package
     *
     * @param string the name of the class
     * @return string the name of the package
     */
    static function getPackageName($classname)
    {
        $reflect = new ReflectionClass($classname);

        if (preg_match('/@package[\s]+([\.\w]+)/', $reflect->getDocComment(), $matches))
        {
            return $matches[1];
        }
        else
        {
            return "default";
        }
    }
    
    /**
     * Returns the subpackage of a class as defined in the docblock of the class
     * using @subpackage
     *
     * @param string $classname the name of the class
     *
     * @author Benjamin Schultz <bschultz@proqrent.de>
     * @return string|null the name of the subpackage
     */
    public static function getSubpackageName($classname)
    {
        $reflect = new ReflectionClass($classname);

        if (preg_match('/@subpackage[\s]+([\.\w]+)/', $reflect->getDocComment(), $matches)) {
            return $matches[1];
        } else {
            return null;
        }
    }

    /**
     * Derives the classname from a filename.
     * Assumes that there is only one class defined in that particular file, and that
     * the naming follows the dot-path (Java) notation scheme.
     *
     * @param string the filename
     * @return string the name fo the class
     */
    public static function getClassFromFileName($filename)
    {
        $filename = basename($filename);
        
        $rpos = strrpos($filename, '.');
        
        if ($rpos != -1)
        {
            $filename = substr($filename, 0, $rpos);
        }
        
        return $filename;
    }

    /**
     * @param string the filename
     * @param Path optional classpath
     * @return array list of classes defined in the file
     */
    public static function getDefinedClasses($filename, $classpath = NULL)
    {
        $filename = realpath($filename);
        
        if (!file_exists($filename))
        {
            throw new Exception("File '" . $filename . "' does not exist");
        }
        
        if (isset(self::$definedClasses[$filename]))
        {
            return self::$definedClasses[$filename];
        }
        
        Phing::__import($filename, $classpath);

        $declaredClasses = get_declared_classes();
        
        foreach ($declaredClasses as $classname)
        {
            $reflect = new ReflectionClass($classname);
            
            self::$definedClasses[$reflect->getFilename()][] = $classname;
            
            if (is_array(self::$definedClasses[$reflect->getFilename()]))
            {           
                self::$definedClasses[$reflect->getFilename()] = array_unique(self::$definedClasses[$reflect->getFilename()]);
            }
        }
        
        if (isset(self::$definedClasses[$filename]))
        {
            return self::$definedClasses[$filename];
        }
        else
        {
            return array();
        }
    }
}

