<?php
/**
 * Created by PhpStorm.
 * User: Mead
 * Date: 2019/9/3
 * Time: 8:46 PM
 */

namespace App\Handlers;

trait ToolsHandler
{
    public static function stitching($arr, $offset, $length = false)
    {
        if ($length === false) return implode('', array_slice($arr, $offset));
        return implode('', array_slice($arr, $offset, $length));
    }

    /**
     * 处理状态信息
     *
     * @param  $status string
     * @return array
     * @author Fx
     *
     */
    public static function handleStatus($status, $offset = 0, $len = 11)
    {

        $data = self::handleU4($status);
        $data = array_slice($data, $offset, $len);
        $res = [
            'bike_lock' => $data[0],
            'guard_lock' => $data[1],
            'rear_wheel_lock' => $data[2],
            'backseat_lock' => $data[3],
            'lamp_status' => $data[4],
            'battery_lock' => $data[5],
            'rear_wheel_motion' => $data[6],
            'is_motion' => $data[7],
            'location_type' => $data[8],
            'backseat_status' => $data[9],
            'order_status' => $data[10],
        ];

        return $res;
    }

    /**
     * 解析u1
     *
     * @param $u1
     * @return array
     * @author Fx
     *
     */
    public static function handleU1($u1)
    {
        $str2 = base_convert($u1, 16, 2);
        $u1_bin = str_pad($str2, 8, 0, STR_PAD_LEFT);
        $data = str_split(str_replace(' ', '', trim($u1_bin)));
        return array_reverse($data);
    }

    /**
     * 解析u2
     *
     * @param $u2
     * @return array
     * @author Fx
     *
     */
    public static function handleU2($u2)
    {
        $str2 = base_convert($u2, 16, 2);
        $u2_bin = str_pad($str2, 16, 0, STR_PAD_LEFT);
        $data = str_split(str_replace(' ', '', trim($u2_bin)));
        return array_reverse($data);
    }

    public static function handleI2($i2)
    {
        $str10 = base_convert($i2, 16, 10);
        if ($str10 > 32767) {
            return $str10 - (32768 * 2);
        } else {
            return $str10;
        }
    }

    /**
     * 解析u4
     *
     * @param $u4
     * @return array
     * @author Fx
     *
     */
    public static function handleU4($u4)
    {
//        $u4 = hexdec($u4);
//        $u4_bin = self::decto_bin([$u4], 2);
        $str2 = base_convert($u4, 16, 2);
        $u4_bin = str_pad($str2, 32, 0, STR_PAD_LEFT);
        $data = str_split(str_replace(' ', '', trim($u4_bin)));
//        var_dump($data);
        return array_reverse($data);
    }

    public static function formatCoordinate($val)
    {
        return $val / 1000000;
    }

    /**
     *十进制转二进制、八进制、十六进制 不足位数前面补零*
     *
     * @param array $datalist 传入数据array(100,123,130)
     * @param int $bin 转换的进制可以是：2,8,16
     * @return array 返回数据 array() 返回没有数据转换的格式
     */
    public static function decto_bin($datalist, $bin)
    {
        static $arr = array(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 'A', 'B', 'C', 'D', 'E', 'F');
        if (!is_array($datalist)) $datalist = array($datalist);
        if ($bin == 10) return $datalist; //相同进制忽略
        $bytelen = ceil(16 / $bin); //获得如果是$bin进制，一个字节的长度
        $aOutChar = array();
        foreach ($datalist as $num) {
            $t = "";
            $num = intval($num);
            if ($num === 0) continue;
            while ($num > 0) {
                $t = $arr[$num % $bin] . $t;
                $num = floor($num / $bin);
            }
            $tlen = strlen($t);
            if ($tlen % $bytelen != 0) {
                $pad_len = $bytelen - $tlen % $bytelen;
                $t = str_pad("", $pad_len, "0", STR_PAD_LEFT) . $t; //不足一个字节长度，自动前面补充0
            }
            $aOutChar[] = $t;
        }
        return $aOutChar;
    }

}