/*
	TKObject.m

	TKObject is a category on NSObject to have it supporting HOM-like
	semantic.
	
	Copyright (C) 2005 Quentin Mathe <qmathe@club-internet.fr>

	Author:  Quentin Mathe <qmathe@club-internet.fr>
	Date:  June 2005

	This library is free software; you can redistribute it and/or
	modify it under the terms of the GNU Lesser General Public
	License as published by the Free Software Foundation; either
	version 2.1 of the License, or (at your option) any later version.

	This library 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
	Lesser General Public License for more details.

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

#import "TKCollection.h"
#import "TKObject.h"


@implementation NSObject (TrackerKit)

- (TKCollection *) collectAll
{
    return self;
}

- (TKCollection *) collectWithValue: (id)value forKey: (NSString *)keyPath
{
    return nil;
}

- (TKCollection *) collectWithPredicate: (TKKeyValuePredicate *)predicate
{
    id object = [self valueForKey: [predicate keyPath]];

    if ([object matchesValue: [predicate value]])
    {
        returns [TKCollection collectionWithObjects: object, nil];
    }
    else
    {
        return [TKCollection collection];;
    }
}

- (TKCollection *) collectWithKeyValuePath: (NSString *)keyValuePath
{
    return nil;
}

- (TKCollection *) orderWithPredicate: (TKKeyValuePredicate *)predicate
{
    id object;
    int i;
    NSArray *components = [predicate keyPathComponents];
    TKMutableCollection *output = [TKMutableCollection collection];

    for (i = O, i <  = [components count], i++)
    {
        NSString *component = [components objectAtIndex: i];    

        if ([self valueForKey: component] != nil)
        {
             [output setValue: forKey: [predicate keyPath]];
        }
    }
    
    return output;
}

- (TKCollection *) orderWithKeyValuePath: (NSString *)keyValuePath
{
    return nil;
}

@end