<?php defined('SYSPATH') or die('No direct access allowed.');

/**
 * This class provides invoice PDF rendering capability
 *
 * @package    Invoice
 * @category   Helpers
 * @author     Deon George
 * @copyright  (c) 2009-2013 Open Source Billing
 * @license    http://dev.osbill.net/license.html
 */

define('FPDF_FONTPATH','includes/tcpdf/fonts/');
require_once('includes/tcpdf/tcpdf.php');

abstract class Invoice_TCPDF extends TCPDF {
	// Our invoice object
	protected $io;
	// Our company object
	protected $co;

	protected $billToCompany = true;
	protected $itemsSummaryMax = 16;
	protected $itemsPreviousMax = 5;
	protected $news = '';
	protected $pageType = 'blank';
	protected $show_itemized = true;
	protected $show_service_range = false;
	private $invoiceCurrency = '$';
	private $invoiceDecimals = 2;

	# Store previous invoices due
	private $itemsPrevious = array();
	# Stores the invoice items
	protected $invoice;
	protected $itemsFull;
	protected $account;
	# Iteration of drawing the items on the invoice
	protected $iteration;
	# Store the date range, that the invoice covers
	protected $dateRange;

	public function __construct($io) {
		parent::__construct();

		$this->io = $io;
		$this->co = Company::instance();

		// Set up the invoice
		$this->SetCreator('Open Source Billing');
		$this->SetAuthor($this->co->name());
		$this->SetTitle(sprintf('%s Invoice',$this->co->name()));
		$this->SetSubject(sprintf('Invoice #%06s',$this->io->refnum(TRUE)));
		$this->SetKeywords($this->io->refnum(TRUE));
		$this->SetAutoPageBreak(TRUE,25);
		$this->SetHeaderMargin(1);
		$this->SetFooterMargin(10);
		$this->SetDisplayMode('fullwidth');
		#$this->setHeaderFont(array('helvetica','',8));
		$this->setFooterFont(array('helvetica','',8));
	}

	abstract public function drawCompanyLogo();
	abstract public function drawCompanyAddress();
	abstract public function drawInvoiceHeader();
	abstract public function drawSummaryLineItems();
	abstract public function drawPaymentMethods();
	abstract public function drawRemittenceStub();

	public function drawCustom() {}
	public function drawInvoiceDueNotice() {}
	public function drawInvoicePaidNotice() {}
	public function setLateFeeNotice() {}

	/**
	 * Get a PDF invoice template
	 */
	public function getTemplate() {}

/*
	public function setItemsFull($items) {
		$this->itemsFull = $items;
	}

	public function setItemsPrevious($items) {
		$this->itemsPrevious = $items;
	}

	public function setDateRange($periodStart,$periodEnd) {
		$this->dateRange = sprintf('%s - %s',date(UNIX_DATE_FORMAT,$periodStart),date(UNIX_DATE_FORMAT,$periodEnd));
	}

	public function setCurrency($currency) {
		$this->invoiceCurrency = $currency;
	}

	public function setDecimals($decimals) {
		$this->invoiceDecimals = $decimals;
	}

	/**
	 * Render an amount into a currency display
	 */
/*
	protected function _currency($num) {
		global $C_list;

		if ($this->invoiceDecimals>3)
			return $this->invoiceCurrency.number_format($num,$this->invoiceDecimals);
		else
			return $C_list->format_currency_num($num,$this->invoice['actual_billed_currency_id']);
	}
*/

	/**
	 * Add a watermark to the PDF
	 */
	public function addWaterMark($text) {
		$this->SetFont('helvetica','B',50);
		$this->SetTextColor(203,203,203);
		$this->Rotate(0);
		$this->Text(10,50,$text);
		$this->Rotate(0);
		$this->SetTextColor(0,0,0);
	}
}
?>