<?php

namespace common\components;

use Yii;
use yii\helpers\Url;
use yii\helpers\ArrayHelper;

class Tools
{
    /**
     * 获取随机验证码
     * @return string
     */
    public static function getRandomNumber($count = 6, $type = 'mixed')
    {
        $chars = '1234567890abcdefghijklmnopqrstuvwxyz';

        switch($type) {
            case 'number':
                $startIndex = 0;
                $endIndex = 9;
                break;
            case 'letter':
                $startIndex = 10;
                $endIndex = 35;
                break;
            default :
                $startIndex = 0;
                $endIndex = 35;
                break;
        }

        $randomNumber = '';
        for($i = 0; $i<$count; $i++) {
            $randomNumber .= substr($chars, rand($startIndex, $endIndex), 1);
        }
        return $randomNumber;
    }


    /**
     * 获取文件全路径
     * @param type $filename
     * @param type $type
     * @return string
     */
    public static function getFileUrl($filename, $type)
    {
        return $filename;
        switch ($type) {
            case 'case':
                return $filename?Url::to('@resDomain/' . $type . '/' . $filename):'';
            case 'video':
                return $filename?Url::to('@resDomain/' . $type . '/' . $filename):'';
            case 'banner':
                return $filename?Url::to('@resDomain/' . $type . '/' . $filename):'';
            case 'weixin':
                return $filename?Url::to('@resDomain/' . $type . '/' . $filename):'';
            case 'public':
                return $filename?Url::to('@resDomain/' . $type . '/' . $filename):'';
            default:
                return '';
        }
    }

    public static function getGradeFile($grade)
    {
        return Url::to('@resDomain/grade/a' . $grade . '.png');
    }


    /**
     * 判断当前日期是否是可用日期
     * @param type $startData
     * @param type $endData
     */
    public static function isAvailableDate($start, $end)
    {
        $current = date('Y-m-d');
        $start = $start?date('Y-m-d', strtotime($start)):$current;
        $end = $end?date('Y-m-d', strtotime($end)):$current;

        if($start <= $current && $end >= $current) {
            return true;
        } else {
            return false;
        }
    }


    /**
     * 添加get查询数据
     * @param type $values
     */
    public static function addQueryParams($values)
    {
        Yii::$app->request->setQueryParams(ArrayHelper::merge(Yii::$app->request->get(), $values));
    }


    /**
     * 获取post数据, 可附加额外数据
     * @param array $values 附加数据,必须是数组形式
     * @param string $key 指定数据附加到特定键
     */
    public static function getPost(array $values, $key = null)
    {
        if(Yii::$app->request->isPost) {
            $data = Yii::$app->request->post();
            if($key !== null) {
                $data[$key] = ArrayHelper::merge($data[$key], $values);
            } else {
                $data = ArrayHelper::merge($data, $values);
            }
            return $data;
        } else {
            return;
        }
    }

    /*
 * 截取字符串
 */
    public static function truncate_utf8_string($string, $length, $etc = '...')
    {
        $result = '';
        $string = html_entity_decode(trim(strip_tags($string)), ENT_QUOTES, 'UTF-8');
        $strlen = strlen($string);
        for ($i = 0; (($i < $strlen) && ($length > 0)); $i++)
        {
            if ($number = strpos(str_pad(decbin(ord(substr($string, $i, 1))), 8, '0', STR_PAD_LEFT), '0'))
            {
                if ($length < 1.0)
                {
                    break;
                }
                $result .= substr($string, $i, $number);
                $length -= 1.0;
                $i += $number - 1;
            }
            else
            {
                $result .= substr($string, $i, 1);
                $length -= 0.5;
            }
        }
        $result = htmlspecialchars($result, ENT_QUOTES, 'UTF-8');
        if ($i < $strlen)
        {
            $result .= $etc;
        }
        return $result;
    }

    public static function arraySort($array, $keys, $sort = SORT_DESC)
    {
        $keysValue = [];
        foreach ($array as $k => $v) {
            $keysValue[$k] = $v[$keys];
        }
        array_multisort($keysValue, $sort, $array);
        return $array;
    }
}