<?php
/* 	
 	Open Media Collectors Database
	Copyright (C) 2001,2006 by Jason Pell

	This program is free software; you can redistribute it and/or
	modify it under the terms of the GNU General Public License
	as published by the Free Software Foundation; either version 2
	of the License, or (at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program; if not, write to the Free Software
	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

include_once('./functions/item_type.php');
include_once('./functions/item_attribute.php');

function get_s_attribute_type_tooltip_array($s_attribute_type_list_rs)
{
	$arrayOfAttributes = "arrayOfSystemAttributeTypeTooptips = new Array(".count($s_attribute_type_list_rs).");\n";
	$count = 0;
	reset($s_attribute_type_list_rs);
	while(list(,$s_attribute_type_r) = each($s_attribute_type_list_rs))
	{
		$arrayOfAttributes .= "arrayOfSystemAttributeTypeTooptips[$count] = new SystemAttributeTypeTooltip('".addslashes($s_attribute_type_r['s_attribute_type'])."', '".addslashes($s_attribute_type_r['description'])."', '".addslashes($s_attribute_type_r['prompt'])."', '".addslashes($s_attribute_type_r['input_type'])."', '".addslashes($s_attribute_type_r['display_type'])."', '".addslashes($s_attribute_type_r['s_field_type'])."', '".addslashes($s_attribute_type_r['site_type'])."');\n";
	    $count++;
	}

	return "<script language=\"JavaScript\">".$arrayOfAttributes."</script>";
}

function check_item_type_structure($s_item_type, &$error)
{
	if(is_exists_item_type($s_item_type))
	{
		$missing_s_field_types = NULL;
		
		if(!fetch_sfieldtype_item_attribute_type($s_item_type,'TITLE'))
			$missing_s_field_types[] = 'TITLE';
		
		if(!fetch_sfieldtype_item_attribute_type($s_item_type,'STATUSTYPE'))
			$missing_s_field_types[] = 'STATUSTYPE';
			
		if(!fetch_sfieldtype_item_attribute_type($s_item_type,'STATUSCMNT'))
			$missing_s_field_types[] = 'STATUSCMNT';
			
		if(!fetch_sfieldtype_item_attribute_type($s_item_type,'CATEGORY'))
			$missing_s_field_types[] = 'CATEGORY';
		
		if(get_opendb_config_var('borrow', 'enable')!==FALSE && get_opendb_config_var('borrow', 'duration_support')!==FALSE)
		{
			if(!fetch_sfieldtype_item_attribute_type($s_item_type,'DURATION'))
				$missing_s_field_types[] = 'DURATION';
		}
		
		if(is_not_empty_array($missing_s_field_types))
		{
			$error = array('error'=>'The following Field Type attribute relationships are missing.',
							'detail'=>$missing_s_field_types);
							
			return FALSE;
		}
		else // No errors so no problem.
			return TRUE;
	}
	else // no message if s_item_type does not even exist.
		return FALSE;
}

/**
* If any items found with the specified s_item_type, then
* the s_item_type is not deletable.
*/
function is_s_item_type_deletable($s_item_type)
{
	$query = "SELECT 'x' FROM item i WHERE i.s_item_type='".$s_item_type."'";
	$result = db_query($query);
	if($result && db_num_rows($result)>0)
	{
		db_free_result($result);
		return FALSE;
	}

	//else
	return TRUE;
}


function is_exists_non_instance_item_attributes($s_item_type, $s_attribute_type, $order_no)
{
	$query = "SELECT 'x' FROM item i, item_attribute ia ".
		"WHERE i.id = ia.item_id AND i.s_item_type = '$s_item_type' AND ".
		"ia.s_attribute_type = '$s_attribute_type' AND ia.order_no = '$order_no' AND instance_no = 0 ";

	$result = db_query($query);
	if($result && db_num_rows($result)>0)
	{
		db_free_result($result);
		return TRUE;
	}

	//else
	return FALSE;
}


/**
* If any item_attributes found with the specified s_item_type, s_attribute_type
* and order_no then the s_item_attribute_type record is not deletable.
*/
function is_s_item_attribute_type_deletable($s_item_type, $s_attribute_type, $order_no)
{
	$query = "SELECT 'x' FROM item i, item_attribute ia ".
			"WHERE i.id = ia.item_id AND i.s_item_type = '$s_item_type' AND ".
			"ia.s_attribute_type = '$s_attribute_type' AND ia.order_no = '$order_no'";
	
	$result = db_query($query);
	if($result && db_num_rows($result)>0)
	{
		db_free_result($result);
		return FALSE;
	}

	//else
	return TRUE;
}

function is_s_item_attribute_type_with_order_no($s_item_type, $s_attribute_type, $order_no)
{
	$query = "SELECT 'x' FROM s_item_attribute_type siat ".
			"WHERE siat.s_item_type = '$s_item_type' AND ".
			"siat.s_attribute_type = '$s_attribute_type' AND ".
			"siat.order_no = '$order_no'";

	$result = db_query($query);
	if($result && db_num_rows($result)>0)
	{
		db_free_result($result);
		return TRUE;
	}

	//else
	return FALSE;
}

/**
*/
function is_exists_item_attribute_type_field_type($s_item_type, $s_field_type)
{
	$query = "SELECT 'x' FROM s_item_attribute_type siat, s_attribute_type sat ".
			"WHERE siat.s_attribute_type = sat.s_attribute_type AND siat.s_item_type = '$s_item_type' AND sat.s_field_type = '$s_field_type'";
	
	$result = db_query($query);
	if($result && db_num_rows($result)>0)
	{
		db_free_result($result);
		return TRUE;
	}

	//else
	return FALSE;
}

/**
	Fetch a list of all s_attribute_type's including reserved list.
*/
function fetch_item_type_s_attribute_type_rs($orderby = "s_attribute_type", $order = "asc")
{
	$query = "SELECT s_attribute_type, s_field_type, description, prompt, input_type, display_type, site_type FROM s_attribute_type ".
			"WHERE (s_field_type IS NULL OR s_field_type NOT IN ('ADDRESS', 'RATING')) ".
			"ORDER BY $orderby $order";
			
	$result = db_query($query);
	if($result && db_num_rows($result)>0)
		return $result;
	else
		return FALSE;
}

/*
* Fetch a list of ALL s_attribute_type's
*/
function fetch_sfieldtype_attribute_type_rs($s_field_type, $orderby = "s_attribute_type", $order = "asc")
{
	$query = "SELECT s_attribute_type, s_field_type, description, prompt, input_type, display_type, site_type FROM s_attribute_type ";

	if(is_array($s_field_type))
        $query .= "WHERE s_field_type IN(". format_sql_in_clause($s_field_type).") ";
	else
		$query .= "WHERE s_field_type = '$s_field_type' ";

	$query .= "ORDER BY $orderby $order";

	$result = db_query($query);
	if($result && db_num_rows($result)>0)
		return $result;
	else
		return FALSE;
}

function fetch_s_item_type_rs($orderby = "order_no", $order = "asc")
{
	$query = "SELECT s_item_type, order_no, description, image FROM s_item_type ORDER BY $orderby $order";

	$result = db_query($query);
	if($result && db_num_rows($result)>0)
		return $result;
	else
		return FALSE;
}

function fetch_s_item_attribute_type_rs($s_item_type)
{
	$query = "SELECT siat.s_attribute_type, siat.order_no, siat.prompt, siat.instance_attribute_ind, siat.compulsory_ind, sat.s_field_type, sat.site_type, siat.rss_ind, siat.printable_ind FROM s_item_attribute_type siat, s_attribute_type sat WHERE siat.s_attribute_type = sat.s_attribute_type AND siat.s_item_type = '$s_item_type' ORDER BY siat.order_no ASC";
	
	$result = db_query($query);
	if($result && db_num_rows($result)>0)
		return $result;
	else
		return FALSE;
}

function fetch_s_item_type_r($s_item_type)
{
	$query = "SELECT s_item_type, order_no, description, image FROM s_item_type WHERE s_item_type = '$s_item_type'";

	$result = db_query($query);
	if($result && db_num_rows($result)>0)
	{
		$found = db_fetch_assoc($result);
		db_free_result($result);
		return $found;
	}
	
	//else
	return FALSE;
}

/*
* This function will insert the initial s_item_type only, no reference to the
* s_item_attribute_type's which will come later.
*/ 
function insert_s_item_type($s_item_type, $order_no, $description, $image)
{
	$description = addslashes(trim(strip_tags($description)));

	$query = "INSERT INTO s_item_type (s_item_type, order_no, description, image) "
			."VALUES ('$s_item_type', ".(is_numeric($order_no)?"'$order_no'":"NULL").", '$description', '$image')";
	$update = db_query($query);
	
	// We should not treat updates that were not actually updated because value did not change as failures.
	$rows_affected = db_affected_rows();
	if($update && $rows_affected !== -1)
	{
		if($rows_affected>0)
			opendb_logger(OPENDB_LOG_INFO, __FILE__, __FUNCTION__, NULL, array($s_item_type, $order_no, $description, $image));
		return TRUE;
	}
	else
	{
		opendb_logger(OPENDB_LOG_ERROR, __FILE__, __FUNCTION__, db_error(), array($s_item_type, $order_no, $description, $image));
		return FALSE;
	}
}

function update_s_item_type($s_item_type, $order_no, $description, $image)
{
	$description = addslashes(trim(strip_tags($description)));

	$query = "UPDATE s_item_type "
			."SET "
			.($order_no!==FALSE?" order_no = ".(is_numeric($order_no)?"'$order_no', ":"NULL, "):"")
			."description = '$description' "
			.", image = '$image' "
			."WHERE s_item_type = '$s_item_type'";

	$update = db_query($query);

	// We should not treat updates that were not actually updated because value did not change as failures.
	$rows_affected = db_affected_rows();
	if($update && $rows_affected !== -1)
	{
		if($rows_affected>0)
			opendb_logger(OPENDB_LOG_INFO, __FILE__, __FUNCTION__, NULL, array($s_item_type, $order_no, $description, $image));
		return TRUE;
	}
	else
	{
		opendb_logger(OPENDB_LOG_ERROR, __FILE__, __FUNCTION__, db_error(), array($s_item_type, $order_no, $description, $image));
		return FALSE;
	}
}

function delete_s_item_type($s_item_type)
{
	$query = "DELETE FROM s_item_type "
			."WHERE s_item_type = '$s_item_type'";

	$delete = db_query($query);
	
	// We should not treat updates that were not actually updated because value did not change as failures.
	$rows_affected = db_affected_rows();
	if($delete && $rows_affected !== -1)
	{
		if($rows_affected>0)
			opendb_logger(OPENDB_LOG_INFO, __FILE__, __FUNCTION__, NULL, array($s_item_type));
		return TRUE;
	}
	else
	{
		opendb_logger(OPENDB_LOG_ERROR, __FILE__, __FUNCTION__, db_error(), array($s_item_type));
		return FALSE;
	}
}

function insert_s_item_attribute_type($s_item_type, $s_attribute_type, $order_no, $prompt, $instance_attribute_ind, $compulsory_ind, $rss_ind, $printable_ind)
{
	$prompt = addslashes(trim(strip_tags($prompt)));
	$s_field_type = strtoupper(trim($s_field_type));

    // Ensure we have a valid instance_attribute_ind value.
	$instance_attribute_ind = strtoupper(trim($instance_attribute_ind));
	if($instance_attribute_ind != 'Y')
		$instance_attribute_ind = 'N';

	// Ensure we have a valid compulsory_ind value.	
	$compulsory_ind = strtoupper(trim($compulsory_ind));
	if($compulsory_ind != 'Y')
		$compulsory_ind = 'N';
	
	// Ensure we have a valid rss_ind value.	
	$rss_ind = strtoupper(trim($rss_ind));
	if($rss_ind != 'Y')
		$rss_ind = 'N';
	
	// Ensure we have a valid printable_ind value.	
	$printable_ind = strtoupper(trim($printable_ind));
	if($printable_ind != 'Y')
		$printable_ind = 'N';
	
	$query = "INSERT INTO s_item_attribute_type (s_item_type, s_attribute_type, order_no, prompt, instance_attribute_ind, compulsory_ind, rss_ind, printable_ind) "
			."VALUES ('$s_item_type', '$s_attribute_type', ".(is_numeric($order_no)?"'$order_no'":"0").", '$prompt', '$instance_attribute_ind', '$compulsory_ind', '$rss_ind', '$printable_ind')";
	$update = db_query($query);
	
	// We should not treat updates that were not actually updated because value did not change as failures.
	$rows_affected = db_affected_rows();
	if($update && $rows_affected !== -1)
	{
		if($rows_affected>0)
			opendb_logger(OPENDB_LOG_INFO, __FILE__, __FUNCTION__, NULL, array($s_item_type, $s_attribute_type, $order_no, $prompt, $instance_attribute_ind, $compulsory_ind, $rss_ind, $printable_ind));
		return TRUE;
	}
	else
	{
		opendb_logger(OPENDB_LOG_ERROR, __FILE__, __FUNCTION__, db_error(), array($s_item_type, $s_attribute_type, $order_no, $prompt, $instance_attribute_ind, $compulsory_ind, $rss_ind, $printable_ind));
		return FALSE;
	}
}

function update_s_item_attribute_type_order_no($s_item_type, $s_attribute_type, $old_order_no, $order_no)
{
	$query = "UPDATE s_item_attribute_type "
			."SET order_no = '$order_no' "
			."WHERE s_item_type = '$s_item_type' AND s_attribute_type = '$s_attribute_type' AND order_no = '$old_order_no'";

	$update = db_query($query);
	
	// We should not treat updates that were not actually updated because value did not change as failures.
	$rows_affected = db_affected_rows();
	if($update && $rows_affected !== -1)
	{
		if($rows_affected>0)
			opendb_logger(OPENDB_LOG_INFO, __FILE__, __FUNCTION__, NULL, array($s_item_type, $s_attribute_type, $old_order_no, $order_no));
		return TRUE;
	}
	else
	{
		opendb_logger(OPENDB_LOG_ERROR, __FILE__, __FUNCTION__, db_error(), array($s_item_type, $s_attribute_type, $old_order_no, $order_no));
		return FALSE;
	}
}

function update_s_item_attribute_type($s_item_type, $s_attribute_type, $order_no, $prompt, $instance_attribute_ind, $compulsory_ind, $rss_ind, $printable_ind)
{
	$prompt = addslashes(trim(strip_tags($prompt)));

    // Ensure we have a valid instance_attribute_ind value.
	$instance_attribute_ind = strtoupper(trim($instance_attribute_ind));
	if($instance_attribute_ind != 'Y')
		$instance_attribute_ind = 'N';

	// Ensure we have a valid compulsory_ind value.
	$compulsory_ind = strtoupper(trim($compulsory_ind));
	if($compulsory_ind != 'Y')
		$compulsory_ind = 'N';

	// Ensure we have a valid rss_ind value.
	$rss_ind = strtoupper(trim($rss_ind));
	if($rss_ind != 'Y')
		$rss_ind = 'N';

	// Ensure we have a valid printable_ind value.
	$printable_ind = strtoupper(trim($printable_ind));
	if($printable_ind != 'Y')
		$printable_ind = 'N';
	
	$query = "UPDATE s_item_attribute_type "
			."SET prompt = '$prompt', "
            ."instance_attribute_ind = '$instance_attribute_ind', "
			."compulsory_ind = '$compulsory_ind', "
			."rss_ind = '$rss_ind', "
			."printable_ind = '$printable_ind' "
			."WHERE s_item_type = '$s_item_type' AND s_attribute_type = '$s_attribute_type' AND order_no = '$order_no'";

	$update = db_query($query);
	
	// We should not treat updates that were not actually updated because value did not change as failures.
	$rows_affected = db_affected_rows();
	if($update && $rows_affected !== -1)
	{
		if($rows_affected>0)
			opendb_logger(OPENDB_LOG_INFO, __FILE__, __FUNCTION__, NULL, array($s_item_type, $s_attribute_type, $order_no, $prompt, $instance_attribute_ind, $compulsory_ind, $rss_ind, $printable_ind));
		return TRUE;
	}
	else
	{
		opendb_logger(OPENDB_LOG_ERROR, __FILE__, __FUNCTION__, db_error(), array($s_item_type, $s_attribute_type, $order_no, $prompt, $instance_attribute_ind, $compulsory_ind, $rss_ind, $printable_ind));
		return FALSE;
	}
}


function delete_s_item_attribute_type($s_item_type, $s_attribute_type, $order_no)
{
	$query = "DELETE FROM s_item_attribute_type "
			."WHERE s_item_type = '$s_item_type'";

	if(strlen($s_attribute_type)>0)
	{			
		$query .= " AND s_attribute_type = '$s_attribute_type'";
	}
	
	if(is_numeric($order_no))
	{
		 $query .= " AND order_no = '$order_no'";
	}

	$delete = db_query($query);
	
	// We should not treat updates that were not actually updated because value did not change as failures.
	$rows_affected = db_affected_rows();
	if($delete && $rows_affected !== -1)
	{
		if($rows_affected>0)
			opendb_logger(OPENDB_LOG_INFO, __FILE__, __FUNCTION__, NULL, array($s_item_type, $s_attribute_type, $order_no));
		return TRUE;
	}
	else
	{
		opendb_logger(OPENDB_LOG_ERROR, __FILE__, __FUNCTION__, db_error(), array($s_item_type, $s_attribute_type, $order_no));
		return FALSE;
	}
}

function delete_item_attribute_order_no($s_item_type, $s_attribute_type, $order_no)
{
	// have to use alias to lock table! -- http://dev.mysql.com/doc/mysql/en/LOCK_TABLES.html
	if(db_query("LOCK TABLES item AS i WRITE, item_attribute AS ia WRITE, item_attribute WRITE"))
	{
		$results = db_query(
					"SELECT DISTINCT ia.item_id ".
					"FROM item i, item_attribute ia ".
					"WHERE i.id = ia.item_id AND ".
					"i.s_item_type = '$s_item_type' AND ".
					"ia.s_attribute_type = '$s_attribute_type' AND ".
					"ia.order_no = $order_no");
					
		if($results)
		{
			while($item_attribute_r = db_fetch_assoc($results))
			{
				$update = db_query(
						"DELETE FROM item_attribute ".
						"WHERE item_id = ".$item_attribute_r['item_id']." AND s_attribute_type = '$s_attribute_type' AND order_no = '$order_no'");
		
				// We should not treat updates that were not actually updated because value did not change as failures.
				$rows_affected = db_affected_rows();
				if($update && $rows_affected !== -1)
				{
					if($rows_affected>0)
						opendb_logger(OPENDB_LOG_INFO, __FILE__, __FUNCTION__, NULL, array($s_item_type, $s_attribute_type, $order_no));
				}
				else
				{
                    db_query("UNLOCK TABLES");
                    
                    opendb_logger(OPENDB_LOG_ERROR, __FILE__, __FUNCTION__, db_error(), array($s_item_type, $s_attribute_type, $order_no));
					return FALSE;
				}
			}
			db_free_result($results);
			
			db_query("UNLOCK TABLES");
			return TRUE;
		}
		else
		{
            db_query("UNLOCK TABLES");
            
            opendb_logger(OPENDB_LOG_ERROR, __FILE__, __FUNCTION__, db_error(), array($s_item_type, $s_attribute_type, $order_no));
			return FALSE;
		}
	}
	else
	{
		opendb_logger(OPENDB_LOG_ERROR, __FILE__, __FUNCTION__, db_error(), array($s_item_type, $s_attribute_type, $order_no));
		return FALSE;
	}
}
?>