<?php

/**
 * @package cms
 * @subpackage newsletter
 */

/**
 * Batch process for sending newsletters.
 * @package cms
 * @subpackage newsletter
 */
class NewsletterEmailProcess extends BatchProcess {
	
	protected $subject;
	protected $body;
	protected $from;
	protected $newsletter;
	protected $nlType;
	protected $messageID;
	
	/** 
	 * Set up a Newsletter Email Process
	 *
	 * @param $recipients DataObjectSet The recipients of this newsletter
	 */
	function __construct( $subject, $body, $from, $newsletter, $nlType, $messageID = null, $recipients) {
		
		$this->subject = $subject;
		$this->body = $body;
		$this->from = $from;
		$this->newsletter = $newsletter;
		$this->nlType = $nlType;
		$this->messageID = $messageID;

		parent::__construct( $recipients );
	
	}
	
	function next( $count = 10 ) {
		$max = $this->current + $count;
		
		$max = $max < count( $this->objects ) ? $max : count( $this->objects );
		
		while($this->current < $max) {
			$index = $this->current++;
			$member = $this->objects[$index];

	        // check to see if the user has unsubscribed from the mailing list
	        // TODO Join in the above query first
	        $unsubscribeRecord = DataObject::get_one('Member_UnsubscribeRecord', "`MemberID`='{$member->ID}' AND `NewsletterTypeID`='{$this->nlType->ID}'");
	        
	        if( !$unsubscribeRecord ) {
	        	
	    		$address = $member->Email;   
	    		
	    		/**
	    		 * Email Blacklisting Support
	    		 */
				if($member->BlacklistedEmail && Email_BlackList::isBlocked($address)){
					$bounceRecord = new Email_BounceRecord();
					$bounceRecord->BounceEmail = $member->Email;
					$bounceRecord->BounceTime = date("Y-m-d H:i:s",time());
					$bounceRecord->BounceMessage = "BlackListed Email";
					$bounceRecord->MemberID = $member->ID;
					$bounceRecord->write();

					// Log the blacklist for this specific Newsletter
					$newsletter = new Newsletter_SentRecipient();
					$newsletter->Email = $address;
					$newsletter->MemberID = $member->ID;
					$newsletter->Result = 'BlackListed';
					$newsletter->ParentID = $this->newsletter->ID;
					$newsletter->write();

				} else {		
					$e = new Newsletter_Email($this->nlType);
					$e->setBody( $this->body );
					$e->setSubject( $this->subject );
					$e->setFrom( $this->from );
					$e->setTemplate( $this->nlType->Template );
		
					if(method_exists($member, "getNameForEmail"))
						$nameForEmail = $member->getNameForEmail();
			
					$e->populateTemplate( array( 'Member' => $member, 'FirstName' => $member->FirstName, 'NameForEmail'=>$nameForEmail ) );
					$this->sendToAddress( $e, $address, $this->messageID, $member);
				}
	        }
    	}
    
	    if( $this->current >= count( $this->objects ) )
	    	return $this->complete();
	    else	
	    	return parent::next();
	}
	
	/*
	 * Sends a Newsletter email to the specified address
	 *
	 * @param $member The object containing information about the member being emailed
	 */
	private function sendToAddress( $email, $address, $messageID = null, $member) {
		$email->setTo( $address );
		$result = $email->send( $messageID );
		// Log result of the send
		$newsletter = new Newsletter_SentRecipient();
		$newsletter->Email = $address;
		$newsletter->MemberID = $member->ID;
		// If Sending is successful
		if ($result == true) {
			$newsletter->Result = 'Sent';
		} else {
			$newsletter->Result = 'Failed';
		}
		$newsletter->ParentID = $this->newsletter->ID;
		$newsletter->write();
		// Adding a pause between email sending can be useful for debugging purposes
		// sleep(10);
	}
	
	function complete() {
		parent::complete();
		
		if( $this->newsletter->SentDate ) {
			$resent = true;
		} else {
			$resent = false;
		}
		
		$this->newsletter->SentDate = 'now';
		$this->newsletter->Status = 'Send';
		$this->newsletter->write();
		
		// Call the success message JS function with the Newsletter information
		if( $resent ) {
			return "resent_ok( '{$this->nlType->ID}', '{$this->newsletter->ID}', '".count( $this->objects )."' )";
		} else {
			return "draft_sent_ok( '{$this->nlType->ID}', '{$this->newsletter->ID}', '".count( $this->objects )."' )";
		}
	}
}
?>