<?php
namespace Files\Operation;

use Files\Thumbnail;

class FileOperate implements \Files\Event\FileEvent
{
	private $db;  			//传入PDO对象
	private $DefaultFetchMode = \PDO::FETCH_BOTH;	//默认检索模式，防止出现sdtClass错误
	private $config;		//全局配置
	
	public $def_allow_ext = array(
				'gif', 'jpg', 'jpeg', 'png', 'bmp',
				'flv','swf', 'mp3', 'wav', 'wma', 'wmv', 'mid', 'avi', 'mpg', 'asf', 'rm', 'rmvb',
				'pdf','doc', 'docx', 'xls', 'xlsx', 'ppt', 'htm', 'html', 'txt', 'zip', 'rar', 'gz', 'bz2'
				);
	
	function __construct($db = NULL)
	{
		if(empty($db))
		{
			$this->db = \Zend_Registry::get('db');
		}else{
			$this->db = $db;
		}
		
		$this->config = \Zend_Registry::get('config');
	}
	
	public function checkExt(\Zend_EventManager_Event $e){
		$file = $e->getParam('file');
		
		$ext_arr = $this->def_allow_ext;
		
		$finfo = finfo_open(FILEINFO_MIME_TYPE);
		$filetype =  finfo_file($finfo, $file['tmp_name']) ; //文件mime类型
		finfo_close($finfo);
		
		foreach($ext_arr as $v)
		{
			if(strpos($filetype,$v) !== false)
			{
				return true;
			}
		}
		
		return array("error"=>"您上传的文件不在允许的范围内".$filetype." was not in ".join(",",$ext_arr));
	}//checkParam
	
	public function checkSize(\Zend_EventManager_Event $e){
		$file = $e->getParam('file');
		
		$file_size = $file['size'];
		
		if(!isset($conf->maxsize) && !empty($conf->maxsize))
		{
			$max_size = (int)$conf->maxsize;
		}else{
			$max_size = 30*1024*1024;
		}
		
		if($file_size > $max_size)
		{
			return array("error"=>'上传的文件超过了允许的文件大小');
		}
		
		return true;
	}//checkSize
	
	public function makeThumb(\Zend_EventManager_Event $e)
	{
		$file_path = $e->getParam('file_path');
		$conf = $e->getParam('conf');
		$save_path = $conf->upload;
		$dbsave = $e->getParam('db_path');
		$file_ext = $e->getParam('file_ext');
		$new_file_basename = $e->getParam('new_file_basename');
		
		$finfo = finfo_open(FILEINFO_MIME_TYPE);
		$filetype =  finfo_file($finfo, $file_path) ; //文件mime类型
		finfo_close($finfo);
		
		$thumb_conf = new \Zend_Config_Ini("../application/conf/thumb.ini", "thumb");
		
		if($thumb_conf->makethumb != "on")
		{
			return array();
		}
		
		$allowmime = $thumb_conf->imagemime;
		if(empty($allowmime))
		{
			$allowmime = array('image/jpeg','image/png','image/gif');
		}else{
			$allowmime = explode(",",$allowmime);
		}
		
		if(!in_array($filetype,$allowmime))
		{
			return array();
		}
			
		$thumb_size = explode(",",$thumb_conf->thumbsize);
		
		$thumbnail = array();
		
		foreach($thumb_size as $v)
		{
			$v = (int)$v;
			$thumb = new Thumbnail($v, $v);
			$image = file_get_contents($file_path);
			$thumb->loadData($image, $filetype);
			$thumbfile = $save_path.$dbsave.$new_file_basename.'_'.$v. '.' .$file_ext;
			$thumbnail[$v] = array(
				'size' => $v,
				'ext' => $file_ext,
				'file' => $thumbfile,
				'url' => $dbsave.$new_file_basename.'_'.$v. '.' .$file_ext ,
			);
			$thumb->buildThumb($thumbfile);
		}
		
		return $thumbnail;
		
	}//makeThumb
}