<?php
/**
 * AgileBill - Open Billing Software
 *
 * This body of work is free software; you can redistribute it and/or
 * modify it under the terms of the Open AgileBill License
 * License as published at http://www.agileco.com/agilebill/license1-4.txt
 *
 * Originally authored by Tony Landis, AgileBill LLC
 *
 * Recent modifications by Deon George
 *
 * @author Deon George <deonATleenooksDOTnet>
 * @copyright 2009 Deon George
 * @link http://osb.leenooks.net
 *
 * @link http://www.agileco.com/
 * @copyright 2004-2008 Agileco, LLC.
 * @license http://www.agileco.com/agilebill/license1-4.txt
 * @author Tony Landis <tony@agileco.com>
 * @package AgileBill
 * @subpackage Module:Product
 */

/**
 * The main AgileBill Product Category Class
 *
 * @package AgileBill
 * @subpackage Module:Product
 */
class product_cat extends OSB_module {
	/**
	 * User Menu
	 * List the available categories
	 */
	public function user_menu($VAR) {
		global $smarty,$C_auth;

		$db = &DB();
		$result	= $db->Execute(sqlSelect($db,'product_cat','*','status=1 AND (parent_id=0 OR parent_id IS NULL OR parent_id=id)','position'));
		$smart = array();

		if ($result->RecordCount() == 0) {
			return false;

		} else {
			while (! $result->EOF) {
				# Check for group settings:
				$groups = unserialize($result->fields['group_avail']);

				$auth = false;
				for ($ii=0; $ii<count($groups); $ii++) {
					if ($C_auth->auth_group_by_id($groups[$ii]))
						$auth = true;
				}

				if ($auth) {
					# Create the array for smarty
					array_push($smart,$result->fields);
					$i++;
				}

				$result->MoveNext();
			}

			$smarty->assign('product_cat',$smart);
		}
	}

	/**
	 * User view a category
	 */
	public function user_view($VAR) {
		global $smarty,$C_auth;

		$db = &DB();

		# Get the category information:
		$result	= $db->Execute(sqlSelect($db,'product_cat','id,position,template,name,thumbnail,group_avail,parent_id,max',array('status'=>1,'id'=>$VAR['id'])));

		if (! $result || $result->RecordCount() == 0) {
			return false;

		} else {
			# Check for group settings
			$groups = unserialize($result->fields['group_avail']);

			# Max results per page:
			$max = $result->fields['max'];

			if (empty($max))
				$max = 25;

			if (empty($VAR['page']) || ! is_numeric($VAR['page']) || $VAR['page'] <= 1) {
				$page = 1;
				$start = 0;

			} else {
				$page = $VAR['page'];
				$start = ($page-1)*$max;
			}

			$auth = false;
			for ($ii=0; $ii<count($groups); $ii++) {
				if ($C_auth->auth_group_by_id($groups[$ii]))
					$auth = true;
			}

			if ($auth)
				$smarty->assign('product_cat_arr',array($result->fields));
			else
				return false;

			$parent_id = $result->fields['parent_id'];
			if (! $parent_id)
				$parent_id = '0';
		}

		# Get the items in this category:
		$result	= $db->Execute(sqlSelect($db,'product','id,sku,thumbnail,avail_category_id,price_base,price_setup,group_avail',array('active'=>1),'position,sku'));
		if (! $result || $result->RecordCount() == 0) {
			return false;

		} else {
			$count = 0;
			$smart_prod = array();
			while (! $result->EOF) {
				# check that this item can be displayed in the current category:
				$cat = false;
				$cats = unserialize($result->fields['avail_category_id']);
				for ($i=0; $i<count($cats); $i++) {
					if ($cats[$i] == $VAR['id']) {
						$cat = true;
						break;
					}
				}

				if ($cat) {
					# Check for group settings:
					$groups = unserialize($result->fields['group_avail']);

					$auth = false;
					for ($ii=0; $ii<count($groups); $ii++) {
						if ($C_auth->auth_group_by_id($groups[$ii])) {
							$auth = true;
							break;
						}
					}

					# Paging
					if ($auth) {
						if ($count >= $start && $count < $max*$page)
							array_push($smart_prod,$result->fields);
						$count++;
					}
				}
				$result->MoveNext();
			}

			$results = $count;
			$pages = intval($results / $max);
			if ($results % $max)
				$pages++;

			for ($i=1;$i<=$pages;$i++)
				$pagearr[$i] = $i;

			$smarty->assign('product_arr',$smart_prod);
			$smarty->assign('page_page',$page);
			$smarty->assign('page_results',$results);
			$smarty->assign('page_pages',$pages);
			$smarty->assign('page_arr',$pagearr);
		}

		# Get any sub-categories:
		$result	= $db->Execute($q=sqlSelect($db,'product_cat','*',array('status'=>1,'parent_id'=>$VAR['id']),'position,name'));
		$smart_sub_cat = array();

		if ($result && $result->RecordCount()) {
			while (! $result->EOF) {
				array_push($smart_sub_cat,$result->fields);
				$result->MoveNext();
			}

			$smarty->assign('product_sub_cat',$smart_sub_cat);
		}

		# Get any parent categores:
		$smart_parent_cat = array();
		for ($i=0; $i<=5; $i++) {
			if ($parent_id > 0 ) {
				# Get parent id & add to array
				$result = $db->Execute(sqlSelect($db,array('product_cat','product_cat_translate'),'A.id,A.parent_id,A.template,B.name',array('A.id'=>$parent_id,'B.product_cat_id'=>$parent_id,'B.language_id'=>SESS_LANGUAGE)));
				if ($result && $result->RecordCount()) {
					$parent_id = $result->fields['parent_id'];
					array_push($smart_parent_cat,$result->fields);
				}
			}
		}

		$smart_parent_cat = array_reverse($smart_parent_cat);

		# Get the current category:
		$result = $db->Execute(sqlSelect($db,array('product_cat','product_cat_translate'),'A.id,A.parent_id,A.template,B.name',array('A.id'=>$VAR['id'],'B.product_cat_id'=>$VAR['id'],'B.language_id'=>SESS_LANGUAGE)));
		if ($result && $result->RecordCount())
			$smart_parent_cat[] = $result->fields;

		$smarty->assign('parent_cat',$smart_parent_cat);
	}

	/**
	 * This function will build a nested option list
	 * showing the heirachy of the product categories
	 *
	 * @see tpl_admin_menu_parent
	 */
	private function build_nested_option_list($arr,$start,$level,$current) {
		$option = '';

		for ($i=0; $i<count($arr[$start]); $i++) {
			$id = $arr[$start][$i]['id'];

			if ($id == $current || $arr[$start][$i]['sel'])
				$sel = ' selected="selected"';
			else
				$sel = '';

			if ($level == 0)
				$option .= sprintf('<option value="%s"%s>%s</option>',$id,$sel,$arr[$start][$i]['name']);
			else
				$option .= sprintf('<option value="%s"%s>%s- %s</option>',$id,$sel,str_repeat('&nbsp;',$level-1),$arr[$start][$i]['name']);

			if (isset($arr[$id]))
				$option .= $this->build_nested_option_list($arr,$id,$level+1,$current);
		}

		return $option;
	}

	/**
	 * Select a parent for a category
	 */
	public function tpl_admin_menu_parent($VAR) {
		global $smarty,$C_auth;

		$db = &DB();

		# Get current id
		if (! empty($VAR['id']))
			$cid = str_replace(',','',$VAR['id']);
		else
			$current = '';

		# Loop and put in array
		$result	= $db->Execute(sqlSelect($db,'product_cat','*','','parent_id,position,name'));

		while (! $result->EOF) {
			if ($result->fields['parent_id'] == '' || $result->fields['parent_id'] == 0 || $result->fields['parent_id'] == $result->fields['id'])
				$arr[0][] = $result->fields;
			else
				$arr[$result->fields['parent_id']][] = $result->fields;

			# get current parent_id
			if ($cid > 0 && $result->fields['id'] == $cid)
				$current = $result->fields['parent_id'];

			$result->MoveNext();
		}

		# Create menu
		echo '<select name="product_cat_parent_id" onChange="submit()">';
		echo '<option value="">&nbsp;</option>';
		echo $this->build_nested_option_list($arr,0,0,$current);
		echo '</select>';
	}

	/**
	 * Select a product category for a product
	 */
	public function tpl_admin_menu_product($VAR) {
		global $smarty,$C_auth;

		$db = &DB();
		$dbc	= new CORE_database;

		# Get current category id
		if (! empty($VAR['id'])) {
			$product_id = str_replace(',','',$VAR['id']);
			$product = $db->Execute(sqlSelect($db,'product','avail_category_id',array('id'=>$product_id)));
			$current = unserialize($product->fields['avail_category_id']);

		} else {
			$current = '';
		}

		# Loop and put in array
		$result	= $db->Execute(sqlSelect($db,'product_cat','*','','parent_id,position,name'));

		while (! $result->EOF) {
			# Determine if selected
			$select = false;
			for ($ix=0; $ix<count($current); $ix++) {
				if ($current[$ix] == $result->fields['id']) {
					$result->fields['sel'] = 'selected';
					break;
				}
			}

			# set array
			if ($result->fields['parent_id'] == '' || $result->fields['parent_id'] == 0 || $result->fields['parent_id'] == $result->fields['id'])
				$arr[0][] = $result->fields;
			else
				$arr[$result->fields['parent_id']][] = $result->fields;

			$result->MoveNext();
		}

		# Create menu
		echo '<select name="product_avail_category_id[]" size="5" multiple >';
		echo $this->build_nested_option_list($arr,0,0,null);
		echo '</select>';
	}

	/**
	 * Update an entry
	 */
	public function update($VAR) {
		global $_FILES;

		# Validate the thumbnail upload
		if (isset($_FILES['upload_file1']) && $_FILES['upload_file1']['size'] > 0)
			$VAR['product_cat_thumbnail'] = sprintf('cat_thmb_%s',$_FILES['upload_file1']['name']);
		elseif ($VAR['delthumb'] == 1)
			$VAR['product_cat_thumbnail'] = '';

		# Validate the image upload
		if (isset($_FILES['upload_file2']) && $_FILES['upload_file2']['size'] > 0)
			$VAR['product_cat_image'] = sprintf('cat_img_%s',$_FILES['upload_file2']['name']);
		elseif ( $VAR['delimg'] == 1 )
			$VAR['product_cat_image'] = '';

		$result = parent::update($VAR);

		# Copy the image(s)
		if ($result) {
			# Copy 1ST file upload
			if (isset($_FILES['upload_file1']) && $_FILES['upload_file1']['size'] > 0)
				copy($_FILES['upload_file1']['tmp_name'],sprintf('%scat_thmb_%s',PATH_IMAGES,$_FILES['upload_file1']['name']));

			# Copy the 2ND file upload
			if (isset($_FILES['upload_file2']) && $_FILES['upload_file2']['size'] > 0)
				copy($_FILES['upload_file2']['tmp_name'],sprintf('%scat_img_',PATH_IMAGES,$_FILES['upload_file2']['name']));
		}
	}

	/**
	 * Delete an Entry
	 */
	public function delete($VAR) {
		$this->associated_DELETE = array();

		array_push($this->associated_DELETE,array('table' =>'product_cat_translate','field'=>'product_cat_id'));

		parent::delete($VAR);
	}
}
?>