<?php
/**
 * phpcpd
 *
 * Copyright (c) 2009-2013, Sebastian Bergmann <sebastian@phpunit.de>.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *
 *   * Neither the name of Sebastian Bergmann nor the names of his
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * 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.
 *
 * @package   phpcpd
 * @author    Sebastian Bergmann <sebastian@phpunit.de>
 * @copyright 2009-2013 Sebastian Bergmann <sebastian@phpunit.de>
 * @license   http://www.opensource.org/licenses/BSD-3-Clause  The BSD 3-Clause License
 * @since     File available since Release 1.0.0
 */

namespace SebastianBergmann\PHPCPD\Detector
{
    use SebastianBergmann\PHPCPD\Detector\Strategy\AbstractStrategy;
    use SebastianBergmann\PHPCPD\CodeCloneMap;

    /**
     * PHPCPD code analyser.
     *
     * @author    Johann-Peter Hartmann <johann-peter.hartmann@mayflower.de>
     * @author    Sebastian Bergmann <sebastian@phpunit.de>
     * @copyright 2009-2013 Sebastian Bergmann <sebastian@phpunit.de>
     * @license   http://www.opensource.org/licenses/BSD-3-Clause  The BSD 3-Clause License
     * @link      http://github.com/sebastianbergmann/phpcpd/tree
     * @since     Class available since Release 1.0.0
     */
    class Detector
    {
        /**
         * @var Strategy
         */
        protected $strategy;

        /**
         * @var ezcConsoleOutput
         */
        protected $output;

        /**
         * Constructor.
         *
         * @param AbstractStrategy $strategy
         * @param ezcConsoleOutput $output
         * @since Method available since Release 1.3.0
         */
        public function __construct(AbstractStrategy $strategy, \ezcConsoleOutput $output = NULL)
        {
            $this->strategy = $strategy;
            $this->output   = $output;
        }

        /**
         * Copy & Paste Detection (CPD).
         *
         * @param  Iterator|array $files     List of files to process
         * @param  integer        $minLines  Minimum number of identical lines
         * @param  integer        $minTokens Minimum number of identical tokens
         * @return CodeCloneMap   Map of exact clones found in the list of files
         */
        public function copyPasteDetection($files, $minLines = 5, $minTokens = 70)
        {
            $result = new CodeCloneMap;

            if ($this->output !== NULL) {
                $bar = new \ezcConsoleProgressbar($this->output, count($files));
                print "Processing files\n";
            }

            foreach ($files as $file) {
                $this->strategy->processFile(
                  $file, $minLines, $minTokens, $result
                );

                if ($this->output !== NULL) {
                    $bar->advance();
                }
            }

            if ($this->output !== NULL) {
                print "\n\n";
            }

            return $result;
        }
    }
}
