<?php

namespace App\Blog\Comment;

class Obj extends AbstractObj
{
    protected $_times = array('year' => 31536000, 'month' => 2592000, 'week' => 604800, 'day' => 86400,
                              'hour' => 3600, 'minute' => 60, 'second' => 1);

    public function getListSelect()
    {
        if (null === $this->_select) {
            parent::getListSelect();
            $this->_select->where("`status` = 'approved'");
        }

        return $this->_select;
    }

    protected function _prepareList(&$list)
    {
        parent::_prepareList($list);
        foreach ($list as &$item) {
            $item['timeAgo'] = $this->_getTimeAgo(strtotime($item['date']));
        }
        return $this;
    }

    protected function _getTimeAgo($lastDate)
    {
        if (!is_int($lastDate)) {
            return false;
        }

        $diff = time() - $lastDate;
        $part1 = $this->_getFirstPart($diff);
        if (!empty($part1)) {
            $part2 = $this->_getFirstPart($part1['diff']);
            return $part1['str'] . ' ' . $part2['str'];
        }

        return $part1['str'];
    }

    protected function _getFirstPart($diff)
    {
        foreach ($this->_times as $label => $sec) {
            $p = $diff / $sec;
            if ($p >= 1) {
                $rp = floor($p);
                $s = $rp . ' ' . $label;
                return array(
                    'str'  => ($rp == 1) ? $s : $s . 's',
                    'diff' => $diff - $rp*$sec,
                );
            }
        }

        return null;
    }
}