<?php namespace App\Console\Commands;

use Illuminate\Console\Command;
use Illuminate\Support\Facades\DB;
use App\libs\sms;

class ErrorLogMonitor extends Command {

	/**
	 * The console command name.
	 *
	 * @var string
	 */
	protected $name = 'ErrorLogMonitor';
	protected $YP_TPL_ID = '3390076';

	/**
	 * The console command description.
	 *
	 * @var string
	 */
	protected $description = '监控最近3分钟错误日志';

    public function handle()
    {
        //本地测试路径
//        $path = dirname(__FILE__).'\..\..\..\public';
        $path1 = '/log/seafood_log/error';
        $res1 = $this->chargeFile($path1);
        $path2 = '/log/seafood_log/script_error';
        $res2 = $this->chargeFile($path2);
        if($res1 || $res2){
            $this->sendMsg('13161864516');
            $this->sendMsg('18501257479');
            $this->sendMsg('18410900527');
        }
    }

    public function chargeFile($path){
        $fileName = '/'.date('Y-m-d',time()).'.txt';
        //判断文件是否存在
        $fileName = $path.$fileName;
        $fileRes = file_exists($fileName);
        if($fileRes){
            //读取文件内容
            $contents = $this->tailWithSkip($fileName);
            $arr = json_decode($contents,true);
            $time = strtotime($arr['time']);

            //判断最后一行时间是否在3分钟内
            if(time()-$time <= 180){
                //报警
                return true;
            }
        }
        return false;
    }

    //获取文件最后一行内容
    public function tailWithSkip($filepath, $lines = 1, $skip = 0, $adaptive = true)
    {
        // Open file
        $f = @fopen($filepath, "rb");
        if (@flock($f, LOCK_SH) === false) return false;
        if ($f === false) return false;

        // Sets buffer size, according to the number of lines to retrieve.
        // This gives a performance boost when reading a few lines from the file.
        $max=max($lines, $skip);
        if (!$adaptive) $buffer = 4096;
        else $buffer = ($max < 2 ? 64 : ($max < 10 ? 512 : 4096));

        // Jump to last character
        fseek($f, -1, SEEK_END);

        // Read it and adjust line number if necessary
        // (Otherwise the result would be wrong if file doesn't end with a blank line)
        if (fread($f, 1) == "\n") {
            if ($skip > 0) { $skip++; $lines--; }
        } else {
            $lines--;
        }

        // Start reading
        $output = '';
        $chunk = '';
        // While we would like more
        while (ftell($f) > 0 && $lines >= 0) {
            // Figure out how far back we should jump
            $seek = min(ftell($f), $buffer);

            // Do the jump (backwards, relative to where we are)
            fseek($f, -$seek, SEEK_CUR);

            // Read a chunk
            $chunk = fread($f, $seek);

            // Calculate chunk parameters
            $count = substr_count($chunk, "\n");
            $strlen = mb_strlen($chunk, '8bit');

            // Move the file pointer
            fseek($f, -$strlen, SEEK_CUR);

            if ($skip > 0) { // There are some lines to skip
                if ($skip > $count) { $skip -= $count; $chunk=''; } // Chunk contains less new line symbols than
                else {
                    $pos = 0;

                    while ($skip > 0) {
                        if ($pos > 0) $offset = $pos - $strlen - 1; // Calculate the offset - NEGATIVE position of last new line symbol
                        else $offset=0; // First search (without offset)

                        $pos = strrpos($chunk, "\n", $offset); // Search for last (including offset) new line symbol

                        if ($pos !== false) $skip--; // Found new line symbol - skip the line
                        else break; // "else break;" - Protection against infinite loop (just in case)
                    }
                    $chunk=substr($chunk, 0, $pos); // Truncated chunk
                    $count=substr_count($chunk, "\n"); // Count new line symbols in truncated chunk
                }
            }

            if (strlen($chunk) > 0) {
                // Add chunk to the output
                $output = $chunk . $output;
                // Decrease our line counter
                $lines -= $count;
            }
        }

        // While we have too many lines
        // (Because of buffer size we might have read too many)
        while ($lines++ < 0) {
            // Find first newline and remove all text before that
            $output = substr($output, strpos($output, "\n") + 1);
        }

        // Close file and return
        @flock($f, LOCK_UN);
        fclose($f);
        return trim($output);
    }

    private function init(){
        $ch = curl_init();
        /* 设置验证方式 */
        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Accept:text/plain;charset=utf-8',
            'Content-Type:application/x-www-form-urlencoded', 'charset=utf-8'));
        /* 设置返回结果为流 */
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

        /* 设置超时时间*/
        curl_setopt($ch, CURLOPT_TIMEOUT, 10);

        /* 设置通信方式 */
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        return $ch;

    }

    public function sendMsg($phone){

        $tpl_id = $this->YP_TPL_ID;
        $ch=$this->init();
        //$data=array('tpl_id' => $tpl_id,'text'=>$text,'apikey'=>YP_SMS_KEY,'mobile'=>$phone);
        $data = [
            'apikey' => YP_SMS_KEY,
            'mobile' => $phone,
            'tpl_id' => $tpl_id,
        ];
        $json_data = $this->tpl_send($ch,$data);
        //print_r($json_data);    ******************************maybe影响验证码发出
        $array = json_decode($json_data,true);
        // echo '<pre>';print_r($array);
        curl_close($ch);
        return $array;
    }

    private function tpl_send($ch,$data){
        curl_setopt ($ch, CURLOPT_URL, YP_TPL_URL);
        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));
        $result = curl_exec($ch);
        $error = curl_error($ch);
        $this->checkErr($result,$error);
        return $result;
    }

    private static function checkErr($result,$error) {
        if($result === false)
        {
            echo 'Curl error: ' . $error;
        }
//        else
//        {
//            echo '操作完成没有任何错误';
//        }
    }
}