<?php
namespace Concrete\Core\Search\Column;
use Loader;
class Set {

	protected $columns = array();
	protected $defaultSortColumn;

	public function addColumn($col) {
		$this->columns[] = $col;
	}

	public function __wakeup() {
		$i = 0;
		foreach($this->columns as $col) {
			if ($col instanceof AttributeKeyColumn) {
				$ak = call_user_func(array($this->attributeClass, 'getByHandle'), substr($col->getColumnKey(), 3));
				if (!is_object($ak)) {
					unset($this->columns[$i]);
				}
			}
			$i++;
		}
	}

	public function getSortableColumns() {
		$tmp = array();
		$columns = $this->getColumns();
		foreach($columns as $col) {
			if ($col->isColumnSortable()) {
				$tmp[] = $col;
			}
		}
		return $tmp;
	}
	public function setDefaultSortColumn(Column $col, $direction = false) {
		if ($direction != false) {
			$col->setColumnDefaultSortDirection($direction);
		}
		$this->defaultSortColumn = $col;
	}

	public function getDefaultSortColumn() {
		return $this->defaultSortColumn;
	}
	public function getColumnByKey($key) {
		if (substr($key, 0, 3) == 'ak_') {
			$ak = call_user_func(array($this->attributeClass, 'getByHandle'), substr($key, 3));
			$col = new AttributeKeyColumn($ak);
			return $col;
		} else {
			foreach($this->columns as $col) {
				if ($col->getColumnKey() == $key) {
					return $col;
				}
			}
		}
	}
	public function getColumns() {return $this->columns;}
	public function contains($col) {
		foreach($this->columns as $_col) {
			if ($col instanceof Column) {
				if ($_col->getColumnKey() == $col->getColumnKey()) {
					return true;
				}
			} else if (is_a($col, '\Concrete\Core\Attribute\Key\Key')) {
				if ($_col->getColumnKey() == 'ak_' . $col->getAttributeKeyHandle()) {
					return true;
				}
			}
		}
		return false;
	}
}