<?php

namespace Sabre\VObject\Property;

use Sabre\VObject\Property;

/**
 * URI property
 *
 * This object encodes URI values. vCard 2.1 calls these URL.
 *
 * @copyright Copyright (C) 2007-2014 fruux GmbH. All rights reserved.
 * @author Evert Pot (http://evertpot.com/)
 * @license http://sabre.io/license/ Modified BSD License
 */
class Uri extends Property {

    /**
     * In case this is a multi-value property. This string will be used as a
     * delimiter.
     *
     * @var string|null
     */
    public $delimiter = null;

    /**
     * Returns the type of value.
     *
     * This corresponds to the VALUE= parameter. Every property also has a
     * 'default' valueType.
     *
     * @return string
     */
    public function getValueType() {

        return "URI";

    }

    /**
     * Sets a raw value coming from a mimedir (iCalendar/vCard) file.
     *
     * This has been 'unfolded', so only 1 line will be passed. Unescaping is
     * not yet done, but parameters are not included.
     *
     * @param string $val
     * @return void
     */
    public function setRawMimeDirValue($val) {

        // Normally we don't need to do any type of unescaping for these
        // properties, however.. we've noticed that Google Contacts
        // specifically escapes the colon (:) with a blackslash. While I have
        // no clue why they thought that was a good idea, I'm unescaping it
        // anyway.
        //
        // Good thing backslashes are not allowed in urls. Makes it easy to
        // assume that a backslash is always intended as an escape character.
        if ($this->name === 'URL') {
            $regex = '#  (?: (\\\\ (?: \\\\ | : ) ) ) #x';
            $matches = preg_split($regex, $val, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY );
            $newVal = '';
            foreach($matches as $match) {
                switch($match) {
                    case '\:' :
                        $newVal.=':';
                        break;
                    default :
                        $newVal.=$match;
                        break;
                }
            }
            $this->value = $newVal;
        } else {
            $this->value = $val;
        }

    }

    /**
     * Returns a raw mime-dir representation of the value.
     *
     * @return string
     */
    public function getRawMimeDirValue() {

        if (is_array($this->value)) {
            return $this->value[0];
        } else {
            return $this->value;
        }

    }

}
