<?php

/**
 * @copyright (C) 2013 iJoomla, Inc. - All rights reserved.
 * @license GNU General Public License, version 2 (http://www.gnu.org/licenses/gpl-2.0.html)
 * @author iJoomla.com <webmaster@ijoomla.com>
 * @url https://www.jomsocial.com/license-agreement
 * The PHP code portions are distributed under the GPL license. If not otherwise stated, all images, manuals, cascading style sheets, and included JavaScript *are NOT GPL, and are released under the IJOOMLA Proprietary Use License v1.0
 * More info at https://www.jomsocial.com/license-agreement
 */

use Joomla\CMS\Date\Date;

// no direct access
defined('_JEXEC') or die('Restricted access');
jimport('joomla.utilities.date');

require_once( JPATH_ROOT . '/components/com_community/libraries/core.php' );
require_once( JPATH_ROOT . '/components/com_community/libraries/fields/date.php');

class CFieldsBirthdate extends CFieldsDate {
    public $_yearMaxRanger;
    public $_yearMinRanger;

    /**
     * Construction
     * @param type $fieldId
     */
    public function __construct($fieldId = null) {
        parent::__construct($fieldId);
        if (is_object($this->params)) {
            $this->_yearMaxRanger = $this->params->get('maxrange', 100);
            $this->_yearMinRanger = $this->params->get('minrange', 0); /* for birthdate can not choose year larger than current year */
        }
    }

    public function getFieldData($field) {
        $value = $field['value'];

        if (empty($value))
            return $value;

        $params = new CParameter($field['params']);
        $format = $params->get('display');

        if (!class_exists('CFactory')) {
            require_once( JPATH_ROOT . '/components/com_community/libraries/core.php' );
        }

        $ret = '';

        if ($format == 'age') {
            // PHP version > 5.2
            $datetime = new DateTime($value);
            $now = new DateTime('now');

            // PHP version > 5.3
            if (method_exists($datetime, 'diff')) {
                $interval = $datetime->diff($now);
                $ret = $interval->format('%Y');
            } else {
                $mth = $now->format('m') - $datetime->format('m');
                $day = $now->format('d') - $datetime->format('d');
                $ret = $now->format('Y') - $datetime->format('Y');

                if ($mth >= 0) {
                    if ($day < 0 && $mth == 0) {
                        $ret--;
                    }
                } else {
                    $ret--;
                }
            }
        } else {
            //overwrite Profile date format in Configuration
            $format = $params->get('date_format', 'd. m. Y.');

            //@since 4.2 if this field has hideyear, we shouldn't show the year
            if(isset($field['fieldparams'])){
                $fieldParams = new CParameter($field['fieldparams']);
                if($fieldParams->get('hideyear',false)){

                    $needle = array(
                        '-Y','-y','.Y','.y','Y.','y.','/Y','/y','Y','y'
                    );
                    $format = trim(str_replace($needle, '', $format)); //maybe we should make another input when year is hidden
                }
            }

            $date = new Datetime($value);
            $ret = $date->format($format);
        }

        $ret = trim($ret, '-/.');
        return $ret;
    }

    public function isValid($value, $required) {
        if (($required && empty($value)) || !isset($this->fieldId)) {
            return false;
        }

        $max_range = $this->params->get('maxrange');
        $min_range = $this->params->get('minrange');
        $value = Date::getInstance(strtotime($value))->toUnix();
        $max_ok = true;
        $min_ok = true;

        //$ret = true;

        if ($max_range) {
            if (strtotime($max_range)) {
                $max_range = JDate::getInstance(strtotime($max_range))->toUnix();
                $max_ok = ($value > $max_range);
            } elseif (is_numeric($max_range) && intval($max_range) > 0) {
                //consider as age format
                $datetime = new Datetime();
                $datetime->modify('-' . $max_range . ' year');
                $max_range = $datetime->format('U');
                //revert the age comparation
                $max_ok = ($value > $max_range);
            } else {
                $max_range = 0;
            }
        }
        if ($min_range) {
            if (strtotime($min_range)) {
                $min_range = JDate::getInstance(strtotime($min_range))->toUnix();
                $min_ok = ($value < $min_range);
            } elseif (is_numeric($min_range) && intval($min_range) > 0) {
                //consider as age format
                $datetime = new Datetime();
                $datetime->modify('-' . $min_range . ' year');
                $min_range = $datetime->format('U');
                //revert the age comparation
                $min_ok = ($value < $min_range);
            } else {
                $min_range = 0;
            }
        }

        return ($max_ok && $min_ok) ? true : false;
        //return $ret;
    }

}