<?php
namespace helper;
class email
{
	private $db;
	private $config;
	
	public $mail;				//Zend_Mail Object
	private $charset = "utf-8";
	private $name = "寒区旱区科学数据中心";
	
	private $tbl_mailTemplate = "emailtext";
	
	protected $events = NULL;
	
	public $subject;
	public $body;
	public $type;
	
	function __construct($db = NULL,Zend_Mail_Transport_Smtp $transport = NULL)
	{
		if(empty($db))
		{
			$this->db = Zend_Registry::get('db');
		}else{
			$this->db = $db;
		}
		
		$this->config = Zend_Registry::get('config');
		
		$smtp = $this->config->smtp;
		
		$mail_config = array(
				'ssl' => $smtp->ssl,
				'auth'=> $smtp->auth,
				'username'=> $smtp->username,
				'password'=> $smtp->password
		);
		
		$transport = new Zend_Mail_Transport_Smtp($smtp->host, $mail_config);
		
		Zend_Mail::setDefaultTransport($transport);
		
		if(empty($mail))
		{
			$this->mail = new Zend_Mail();
		}else{
			$this->mail = $mail;
		}
	}

	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;
    }
	
	//默认使用westdc作为发件人
	public function withWestdc()
	{
		$this->mail->setFrom($this->config->supportemail,$this->name);
	}
	
	//加载模板
	public function loadTemplate($id,$data){
		if(is_numeric($this->tmpid))
		{
			$sql = "SELECT * FROM {$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();
			$replacements = array();
			foreach($this->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;
		$this->type = $row['type'];
		
	}//加载模板
	
	//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->withWestdc();
		}else{
			$this->mail->setFrom($from['email'],$from['name']);
		}
		
		$this->mail->setSubject($this->subject);
		
		$this->mail->send();
		
	}
	
}

class EmailListener implements Zend_EventManager_ListenerAggregate
{
	private $db;
	
	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 attach(Zend_EventManager_EventCollection $events)
    {
        $events->attach('send', array($this, 'send'), 100);
    }
	
	public function detach(Zend_EventManager_EventCollection $events)
	{
		
	}
	
	public function send()
	{
		//邮件发送事件
	}
}