<?php
/**
 * @brief		Send Invoice Warnings Task
 *
 * @copyright	(c) 2001 - SVN_YYYY Invision Power Services, Inc.
 *
 * @package		IPS Social Suite
 * @subpackage	nexus
 * @since		01 Apr 2014
 * @version		SVN_VERSION_NUMBER
 */

namespace IPS\nexus\tasks;

/* To prevent PHP errors (extending class does not exist) revealing path */
if ( !defined( '\IPS\SUITE_UNIQUE_KEY' ) )
{
	header( ( isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0' ) . ' 403 Forbidden' );
	exit;
}

/**
 * Send Invoice Warnings Task
 */
class _sendInvoiceWarnings extends \IPS\Task
{
	/**
	 * Execute
	 *
	 * If ran successfully, should return anything worth logging. Only log something
	 * worth mentioning (don't log "task ran successfully"). Return NULL (actual NULL, not '' or 0) to not log (which will be most cases).
	 * If an error occurs which means the task could not finish running, throw an \IPS\Task\Exception - do not log an error as a normal log.
	 * Tasks should execute within the time of a normal HTTP request.
	 *
	 * @return	mixed	Message to log or NULL
	 * @throws	\IPS\Task\Exception
	 */
	public function execute()
	{
		if ( \IPS\Settings::i()->cm_invoice_warning )
		{
			$cutoff = \IPS\DateTime::create()->add( new \DateInterval( 'P' . \IPS\Settings::i()->cm_invoice_generate . 'D' ) )->add( new \DateInterval( 'P' . \IPS\Settings::i()->cm_invoice_warning . 'D' ) )->getTimestamp();
			$select = \IPS\Db::i()->select( '*', 'nexus_purchases', array( 'ps_renewals>0 AND ps_invoice_pending=0 AND ps_invoice_warning_sent=0 AND ps_active=1 AND ps_expire>0 AND ps_expire<?', $cutoff ), 'ps_member', 50 );
			
			$groupedPurchases = array();
			foreach ( new \IPS\Patterns\ActiveRecordIterator( $select, 'IPS\nexus\Purchase' ) as $purchase )
			{
				$groupedPurchases[ $purchase->member->member_id ][ $purchase->id ] = $purchase;
			}
			
			/* Loop */
			foreach ( $groupedPurchases as $memberId => $purchases )
			{
				$member = \IPS\nexus\Customer::load( $memberId );
				$cards = \IPS\Db::i()->select( '*', 'nexus_customer_cards', array( 'card_member=?', $member->member_id ) );
				
				try
				{
					$card = \IPS\nexus\Customer\CreditCard::constructFromData( $cards->first() );
					
					$invoice = new \IPS\nexus\Invoice; // We're not actually going to save this, it's just to know what the charges will be
					foreach ( $purchases as $purchase )
					{
						$invoice->addItem( \IPS\nexus\Invoice\Item\Renewal::create( $purchase ) );
					}
					
					\IPS\Email::buildFromTemplate( 'nexus', 'invoiceWarning', array( $card, $invoice, $invoice->summary() ) )
						->send(
							$member,
							array_map(
								function( $contact )
								{
									return $contact->alt_id->email;
								},
								iterator_to_array( $member->alternativeContacts( array( 'billing=1' ) ) )
							),
							( in_array( 'invoice_warn', explode( ',', \IPS\Settings::i()->nexus_notify_copy_types ) ) ? explode( ',', \IPS\Settings::i()->nexus_notify_copy_email ) : array() )
						);
				}
				catch ( \UnderflowException $e ) {}
								
				\IPS\Db::i()->update( 'nexus_purchases', array( 'ps_invoice_warning_sent' => 1 ), \IPS\Db::i()->in( 'ps_id', array_keys( $purchases ) ) );
			}
		}		
	}
	
	/**
	 * Cleanup
	 *
	 * If your task takes longer than 15 minutes to run, this method
	 * will be called before execute(). Use it to clean up anything which
	 * may not have been done
	 *
	 * @return	void
	 */
	public function cleanup()
	{
		
	}
}