<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2015 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------

namespace think\log\driver;

class File
{

    protected $config = [
        'time_format' => ' c ',
        'file_size'   => 2097152,
        'path'        => '',
    ];

    // 实例化并传入参数
    public function __construct($config = [])
    {
        $this->config = array_merge($this->config, $config);
    }

    /**
     * 日志写入接口
     * @access public
     * @param string $log 日志信息
     * @param string $destination  写入目标
     * @return void
     */
    public function write($log, $destination = '')
    {
        $now = date($this->config['time_format']);
        if (empty($destination)) {
            $destination = $this->config['path'] . date('y_m_d') . '.log';
        }

        //检测日志文件大小，超过配置大小则备份日志文件重新生成
        if (is_file($destination) && floor($this->config['file_size']) <= filesize($destination)) {
            rename($destination, dirname($destination) . DS . time() . '-' . basename($destination));
        }

        error_log("[{$now}] {$_SERVER['SERVER_ADDR']} {$_SERVER['REMOTE_ADDR']} {$_SERVER['REQUEST_URI']}\r\n{$log}\r\n", 3, $destination);
    }
}