//
//  SmartFolderNode.m
//  Cog
//
//  Created by Vincent Spader on 9/25/06.
//  Copyright 2006 __MyCompanyName__. All rights reserved.
//

#import "SmartFolderNode.h"
#import "DirectoryNode.h"
#import "FileNode.h"

@implementation SmartFolderNode

- (BOOL)isLeaf
{
	return NO;
}

- (NSArray *)subpaths
{
	if (subpaths == nil)
	{
		NSDictionary *doc = [NSDictionary dictionaryWithContentsOfFile:path];
		NSString *rawQuery = [doc objectForKey:@"RawQuery"];
		NSArray *searchPaths = [[doc objectForKey:@"SearchCriteria"] objectForKey:@"CurrentFolderPath"];
		
		// Ugh, Carbon from now on...
		MDQueryRef query = MDQueryCreate(kCFAllocatorDefault, (CFStringRef)rawQuery, NULL, NULL);
		
		MDQuerySetSearchScope(query, (CFArrayRef)searchPaths, 0);
		
		[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(queryFinished:) name:(NSString*)kMDQueryDidFinishNotification object:(id)query];
		[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(queryUpdate:) name:(NSString*)kMDQueryDidUpdateNotification object:(id)query];

		MDQueryExecute(query, kMDQueryWantsUpdates);
	}
	
	return subpaths;
}

- (void)setSubpaths:(id)s
{
	[s retain];
	[subpaths release];
	subpaths = s;
}

- (unsigned int)countOfSubpaths
{
	return [[self subpaths] count];
}

- (PathNode *)objectInSubpathsAtIndex:(unsigned int)index
{
	return [[self subpaths] objectAtIndex:index];
}

- (void)queryFinished:(NSNotification *)notification
{
	MDQueryRef query = (MDQueryRef)[notification object];

	NSMutableArray *results = [NSMutableArray array];

	MDQueryDisableUpdates(query);
	int c = MDQueryGetResultCount(query);
	
	int i;
	for (i = 0; i < c; i++)
	{
		MDItemRef  item = (MDItemRef)MDQueryGetResultAtIndex(query, i);
		
		NSString *itemPath = (NSString*)MDItemCopyAttribute(item, kMDItemPath);
		
		[results addObject:itemPath];
		
		[itemPath release];
	}

	MDQueryEnableUpdates(query);
	
	[self processPaths:results];
}

- (void)queryUpdate:(NSNotification *)notification
{
	[self queryFinished: notification];
}


@end