<?php
namespace Mail;

use Helpers\dbh;

class Mail
{
	private $db;				//传入PDO对象.
	private $conf;				//邮件设置
	private $config;			//站点设置
	
	protected $events = NULL;
	
	private $tbl_mailTemplate = "emailtext";
	
	public $mail;				//邮件
	public $subject;
	public $body;
	public $type;
		
	function __construct($db = NULL, $mail = NULL){
		if(empty($db))
		{
			$this->db = \Zend_Registry::get('db');
		}else{
			$this->db = $db;
		}
		
		$this->config = \Zend_Registry::get('config');
		
		$this->conf = new \stdClass();
		
		$this->loadconf();
		$this->smtp();
		
		if(empty($mail))
		{
			$this->mail = new \Zend_Mail('UTF-8');
		}else{
			$this->mail = $mail;
		}
	}
	
	private function loadconf()
	{
		$this->conf->host = $this->config->smtp->host;
		$this->conf->username = $this->config->smtp->username;
		$this->conf->password = $this->config->smtp->password;
		$this->conf->port = $this->config->smtp->port;
		$this->conf->ssl = $this->config->smtp->ssl;
		$this->conf->auth = $this->config->smtp->auth;
		$this->conf->name = $this->config->smtp->name;
	}
	
	private function smtp()
	{
		$mail_config = array(
			'ssl' => $this->conf->ssl,
			'port' => $this->conf->port,
			'auth' => $this->conf->auth,
			'username' => $this->conf->username,
			'password' => $this->conf->password
		);
		$transport = new \Zend_Mail_Transport_Smtp($this->conf->host, $mail_config);
		\Zend_Mail::setDefaultTransport($transport);
	}
	
	public function events(\Zend_EventManager_EventCollection $events = NULL)
    {
        if ($events !== NULL) {
            $this->events = $events;
        } elseif ($this->events === NULL) {
            $this->events = new \Zend_EventManager_EventManager(__CLASS__);
        }
        return $this->events;
    }
	
	//设置默认发件人
	public function setDefaultForm()
	{
		$this->mail->setFrom($this->conf->username,$this->conf->name);
	}
	
	//设置默认收件人
	public function setDefaultTo()
	{
		$this->mail->addTo($this->conf->username,$this->conf->name);
	}
	
	//加载模板
	public function loadTemplate($id,$data){
		if(is_numeric($id))
		{
			$sql = "SELECT * FROM {$this->tbl_mailTemplate} WHERE id='".$id."'";
		}else{
			$sql = "SELECT * FROM {$this->tbl_mailTemplate} WHERE \"template\"='".$id."'";
		}
		
		$rs = $this->db->query($sql);
		
		$row = $rs->fetch();
		
		$subject = $row['subject'];
		$body = $row['body'];
		
		if(count($data) > 0)
		{
			$patterns = array();
			$replacements = array();
			foreach($data as $k=>$v)
			{
				$patterns[]='/{'.$k.'}/i';
				$replacements[]=$v;
			}
			ksort($patterns);
			ksort($replacements);
			$body = preg_replace($patterns, $replacements, $body);
			$subject = preg_replace($patterns, $replacements, $subject);
		}//count($this->data)
		
		$this->subject = $subject;
		$this->body = $body;
		if(isset($row['type']))
		{
			$this->type = $row['type'];
		}else{
			$this->type = "text";
		}
		
	}//加载模板
	
	public function addTo($email,$name)
	{
		$this->mail->addTo($email,$name);
	}
	
	//使用loadTemplate 的结果发送邮件
	//在此之前需要使用 $this->mail->addTo()添加收件人
	public function send($from = NULL){
		if(empty($this->subject) || empty($this->body))
		{
			return "邮件信息不完整";
		}
		
		if($this->type == 'html')
		{
			$this->mail->setBodyHtml($this->body);
		}else{
			$this->mail->setBodyText($this->body);
		}
		
		if(empty($from))
		{
			$this->setDefaultForm();
		}else{
			$this->mail->setFrom($from['email'],$from['name']);
		}
		
		$this->mail->setSubject($this->subject);
		
		$this->mail->send();
		
	}
	

}