<?php
/**
 * Created by PhpStorm.
 * User: zn
 * Date: 2017/5/16
 * Time: 19:04
 */

namespace common\utils;


use DateTime;

class CommUtil
{
    /**
     * 通过路径方式读取数组参数
     * @param $dataList array源数据
     * @param $keyPath  参数取值路径，使用点号分割 "init.gold"
     * @param null $defaultValue
     * @return null
     */
    public static function getArrayParamByPath($dataList, $keyPath, $defaultValue = null)
    {
        if (!isset($keyPath)) return $defaultValue;

        $keyPathList = explode(".", $keyPath);

        $lastData = $dataList;
        foreach ($keyPathList as $key) {
            if (!isset($lastData[$key])) return $defaultValue;//字段不存在返回

            $lastData = $lastData[$key];
        }

        return $lastData;
    }

    /**
     * 格式化时间
     * @param $time
     * @return false|string
     */
    public static function formatDate($time)
    {
        return date('Y-m-d H:i:s', $time);
    }

    public static function dayStr($time)
    {
        return date('Y-m-d', $time);
    }

    /**
     * 获取周
     * 以周一为标记
     * @param int $time
     * @return string | false
     */
    public static function getWeek($time = 0)
    {
        if (empty($time))
            $time = time();

        $weekIndex = self::getWeekIndex($time);

        $date = new DateTime();
        $date->setTimestamp($time);

        date_sub($date, date_interval_create_from_date_string($weekIndex . ' days'));
        return date_format($date, "Y-m-d");
    }

    /**
     * 获取周
     * 以周一为标记
     * @param int $time
     * @return string | false
     */
    public static function getWeekTime($time = 0)
    {
        $date = date_create(self::getWeek($time));
        return $date->getTimestamp();
    }

    /**
     * 获取周序号，周一为0
     * @param $time
     * @return int
     */
    public static function getWeekIndex($time)
    {
        return intval(date('N', $time)) - 1;
    }

    /**
     * 每日凌晨时间
     * @param $time
     * @return int
     */
    public static function getDayTime($time)
    {
        $dayStr = self::dayStr($time);
        $date = date_create($dayStr);
        return $date->getTimestamp();
    }

    /**
     * 产生随机数字
     * @param $len
     * @return string
     */
    public static function getRandomNum($len)
    {
        $code = '';
        for ($i = 0; $i < $len; $i++) {
            $code .= rand(0, 9);
        }

        return $code;
    }

    public static function oddsOne($list, $oddsField)
    {
        if (count($list) == 0) return null;

        $totalOdds = 0;

        $rlist = [];
        foreach ($list as $item) {
            $odds = intval($item[$oddsField]);
            if ($odds == 0) continue;

            $item['minOdds'] = $totalOdds;
            $item['maxOdds'] = $odds + $totalOdds;
            array_push($rlist, $item);

            $totalOdds += $odds;
        }

        $odds = mt_rand(0, $totalOdds);
        foreach ($rlist as $item) {
            if ($item['minOdds'] <= $odds && $odds < $item['maxOdds'])
                return $item;
        }

        return null;
    }

    public static function genUUID()
    {
        return md5(uniqid('', true));
    }

    public static function converStrList($delimiter, $str, $count)
    {
        $list = explode($delimiter, $str);
        if (count($list) == 0) return null;
        if ($count != 0 && count($list) != $count) return null;
        return $list;
    }
}