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

/**
 * This class provides access to HighCharts Series Data Types
 *
 * @package    HighChart/Types
 * @category   Helper
 * @author     Deon George
 * @copyright  (c) 2012-2013 Deon George
 * @license    http://dev.leenooks.net/license.html
 */
abstract class HighChart_Type {
	// What axis are required when we receive data.
	protected $_required_axis = array();
	// The series data in the format axis = value
	protected $_sdata = array();
	protected $_sindex = NULL;
	protected $_soptions = array();
	protected $_sorder = 0;
	protected $_stitle = '';
	protected $_sid = '';

	public function __call($name,$args) {
		switch ($name) {
			case 'id':
				if (! $args)
					return $this->_sid;

				$this->_sid = array_shift($args);
				break;

			case 'data':
				$args = array_shift($args);

				if ($this->_required_axis AND array_diff(array_keys($args),$this->_required_axis))
					throw new Kohana_Exception('Invalid data arguments for chart, expecting [:args]',array(':args'=>implode('|',$this->_required_axis)));

				if (! $args)
					return $this->_sdata;

				$this->_sdata = $args;
				break;

			case 'index':
				if (! $args)
					return $this->_sindex;

				$this->_sindex = array_shift($args);
				break;

			case 'name':
				if (! $args)
					return $this->_stitle;

				$this->_stitle = array_shift($args);
				break;

			case 'order':
				if (! $args)
					return $this->_sorder;

				$this->_sorder = array_shift($args);
				break;

			default:
				throw new Kohana_Exception('Unknown method :name',array(':name'=>$name));
		}

		return $this;
	}

	/**
	 * Incrementally add to a series
	 */
	public function series_add($name,$v,$options=array()) {
		if (! empty($this->_sdata[$name]))
			throw new Kohana_Exception('Column :column already has some data',array(':column'=>$name));

		$this->_sdata[$name] = $v;

		foreach ($options as $k=>$v)
			$this->_soptions[$k][$name] = $v;

		return $this;
	}

	/**
	 * Calculate the total of all data in the series
	 */
	public function total() {
		return array_sum($this->_sdata);
	}
}