/*
 * Copyright (c) 2011, Florian Zeitz <florob@babelmonkeys.de>
 * Copyright (c) 2021, Jonathan Schleifer <js@nil.im>
 *
 * https://nil.im/objxmpp/
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice is present in all copies.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"

#import "XMPPCallback.h"

@implementation XMPPCallback
#ifdef OF_HAVE_BLOCKS
+ (instancetype)callbackWithBlock: (XMPPCallbackBlock)block
{
	return [[(XMPPCallback *)[self alloc]
	    initWithBlock: block] autorelease];
}

- (instancetype)initWithBlock: (XMPPCallbackBlock)block
{
	self = [super init];

	@try {
		_block = [block copy];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}
#endif

+ (instancetype)callbackWithTarget: (id)target selector: (SEL)selector
{
	return [[[self alloc] initWithTarget: target
				    selector: selector] autorelease];
}

- (instancetype)initWithTarget: (id)target selector: (SEL)selector
{
	self = [super init];

	_target = [target retain];
	_selector = selector;

	return self;
}

- (void)dealloc
{
	[_target release];
#ifdef OF_HAVE_BLOCKS
	[_block release];
#endif

	[super dealloc];
}

- (void)runWithIQ: (XMPPIQ *)IQ connection: (XMPPConnection *)connection
{
#ifdef OF_HAVE_BLOCKS
	if (_block != NULL)
		_block(connection, IQ);
	else
#endif
		[_target performSelector: _selector
			      withObject: connection
			      withObject: IQ];
}
@end