<?php

namespace PhpOffice\PhpSpreadsheet\Worksheet;

/**
 * Copyright (c) 2006 - 2016 PhpSpreadsheet.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 * @category   PhpSpreadsheet
 *
 * @copyright  Copyright (c) 2006 - 2016 PhpSpreadsheet (https://github.com/PHPOffice/PhpSpreadsheet)
 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt    LGPL
 */
class Drawing extends BaseDrawing implements \PhpOffice\PhpSpreadsheet\IComparable
{
    /**
     * Path.
     *
     * @var string
     */
    private $path;

    /**
     * Create a new Drawing.
     */
    public function __construct()
    {
        // Initialise values
        $this->path = '';

        // Initialize parent
        parent::__construct();
    }

    /**
     * Get Filename.
     *
     * @return string
     */
    public function getFilename()
    {
        return basename($this->path);
    }

    /**
     * Get indexed filename (using image index).
     *
     * @return string
     */
    public function getIndexedFilename()
    {
        $fileName = $this->getFilename();
        $fileName = str_replace(' ', '_', $fileName);

        return str_replace('.' . $this->getExtension(), '', $fileName) . $this->getImageIndex() . '.' . $this->getExtension();
    }

    /**
     * Get Extension.
     *
     * @return string
     */
    public function getExtension()
    {
        $exploded = explode('.', basename($this->path));

        return $exploded[count($exploded) - 1];
    }

    /**
     * Get Path.
     *
     * @return string
     */
    public function getPath()
    {
        return $this->path;
    }

    /**
     * Set Path.
     *
     * @param string $pValue File path
     * @param bool $pVerifyFile Verify file
     *
     * @throws \PhpOffice\PhpSpreadsheet\Exception
     *
     * @return Drawing
     */
    public function setPath($pValue = '', $pVerifyFile = true)
    {
        if ($pVerifyFile) {
            if (file_exists($pValue)) {
                $this->path = $pValue;

                if ($this->width == 0 && $this->height == 0) {
                    // Get width/height
                    list($this->width, $this->height) = getimagesize($pValue);
                }
            } else {
                throw new \PhpOffice\PhpSpreadsheet\Exception("File $pValue not found!");
            }
        } else {
            $this->path = $pValue;
        }

        return $this;
    }

    /**
     * Get hash code.
     *
     * @return string Hash code
     */
    public function getHashCode()
    {
        return md5(
            $this->path .
            parent::getHashCode() .
            __CLASS__
        );
    }

    /**
     * Implement PHP __clone to create a deep clone, not just a shallow copy.
     */
    public function __clone()
    {
        $vars = get_object_vars($this);
        foreach ($vars as $key => $value) {
            if (is_object($value)) {
                $this->$key = clone $value;
            } else {
                $this->$key = $value;
            }
        }
    }
}
