ObjIRC  Check-in [c99e07382f]

 */

#import <ObjFW/ObjFW.h>

@class IRCConnection;
@class IRCUser;

#ifndef IRC_CONNECTION_M
@protocol IRCConnectionDelegate <OFObject>
#else
@protocol IRCConnectionDelegate
#endif
#ifdef OF_HAVE_OPTIONAL_PROTOCOLS
@optional
#endif
- (void)connection: (IRCConnection*)connection
    didReceiveLine: (OFString*)line;
- (void)connection: (IRCConnection*)connection
       didSendLine: (OFString*)line;

		[self sendLineWithFormat: @"PART %@ :%@", channel, reason];

	[_channels removeObjectForKey: channel];
}

- (void)sendLine: (OFString*)line
{

	[_delegate connection: self
		  didSendLine: line];

	[_socket writeLine: line];
}

- (void)sendLineWithFormat: (OFConstantString*)format, ...
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];

}

- (void)IRC_processLine: (OFString*)line
{
	OFArray *components;
	OFString *action = nil;



	[_delegate connection: self
	       didReceiveLine: line];

	components = [line componentsSeparatedByString: @" "];

	/* PING */
	if ([components count] == 2 &&
	    [[components firstObject] isEqual: @"PING"]) {
		OFMutableString *s = [[line mutableCopy] autorelease];
		[s replaceOccurrencesOfString: @"PING"
				   withString: @"PONG"];
		[self sendLine: s];

		return;
	}

	action = [[components objectAtIndex: 1] uppercaseString];

	/* Connected */
	if ([action isEqual: @"001"] && [components count] >= 4) {


		[_delegate connectionWasEstablished: self];

		return;
	}

	/* JOIN */
	if ([action isEqual: @"JOIN"] && [components count] == 3) {
		OFString *who = [components objectAtIndex: 0];
		OFString *where = [components objectAtIndex: 2];

			[_channels setObject: channel
				      forKey: where];
		} else
			channel = [_channels objectForKey: where];

		[channel addObject: [user nickname]];



		[_delegate connection: self
			   didSeeUser: user
			  joinChannel: where];

		return;
	}

	/* NAMES reply */
	if ([action isEqual: @"353"] && [components count] >= 6) {
		OFString *where;

			    [user hasPrefix: @"%"] || [user hasPrefix: @"*"])
				user = [user substringWithRange:
				    of_range(1, [user length] - 1)];

			[channel addObject: user];
		}



		[_delegate	   connection: self
		    didReceiveNamesForChannel: where];

		return;
	}

	/* PART */
	if ([action isEqual: @"PART"] && [components count] >= 3) {
		OFString *who = [components objectAtIndex: 0];

		if ([components count] > 3)
			reason = [line substringWithRange:
			    of_range(pos + 2, [line length] - pos - 2)];

		[channel removeObject: [user nickname]];



		[_delegate connection: self
			   didSeeUser: user
			 leaveChannel: where
			       reason: reason];

		return;
	}

	/* KICK */
	if ([action isEqual: @"KICK"] && [components count] >= 4) {
		OFString *who = [components objectAtIndex: 0];

		if ([components count] > 4)
			reason = [line substringWithRange:
			    of_range(pos + 2, [line length] - pos - 2)];

		[channel removeObject: [user nickname]];



		[_delegate connection: self
			   didSeeUser: user
			     kickUser: whom
			      channel: where
			       reason: reason];

		return;
	}

	/* QUIT */
	if ([action isEqual: @"QUIT"] && [components count] >= 2) {
		OFString *who = [components objectAtIndex: 0];

			reason = [line substringWithRange:
			    of_range(pos + 2, [line length] - pos - 2)];

		enumerator = [_channels objectEnumerator];
		while ((channel = [enumerator nextObject]) != nil)
			[channel removeObject: [user nickname]];



		[_delegate connection: self
		       didSeeUserQuit: user
			       reason: reason];

		return;
	}

	/* NICK */
	if ([action isEqual: @"NICK"] && [components count] == 3) {
		OFString *who = [components objectAtIndex: 0];

		while ((channel = [enumerator nextObject]) != nil) {
			if ([channel containsObject: [user nickname]]) {
				[channel removeObject: [user nickname]];
				[channel addObject: nickname];
			}
		}



		[_delegate connection: self
			   didSeeUser: user
		     changeNicknameTo: nickname];

		return;
	}

	/* PRIVMSG */
	if ([action isEqual: @"PRIVMSG"] && [components count] >= 4) {
		OFString *from = [components objectAtIndex: 0];
		OFString *to = [components objectAtIndex: 2];
		IRCUser *user;
		OFString *msg;
		size_t pos = [from length] + 1 +
		    [[components objectAtIndex: 1] length] + 1 + [to length];

		from = [from substringWithRange:
		    of_range(1, [from length] - 1)];
		msg = [line substringWithRange:
		    of_range(pos + 2, [line length] - pos - 2)];
		user = [IRCUser IRCUserWithString: from];

		if (![to isEqual: _nickname])


			[_delegate connection: self
			    didReceiveMessage: msg
				      channel: to
					 user: user];
		else


			[_delegate	  connection: self
			    didReceivePrivateMessage: msg
						user: user];


		return;
	}

	/* NOTICE */
	if ([action isEqual: @"NOTICE"] && [components count] >= 4) {
		OFString *from = [components objectAtIndex: 0];

		if (![from containsString: @"!"] || [to isEqual: @"*"]) {
			/* System message - ignore for now */
			return;
		}

		user = [IRCUser IRCUserWithString: from];

		if (![to isEqual: _nickname])


			[_delegate connection: self
			     didReceiveNotice: notice
				      channel: to
					 user: user];
		else


			[_delegate connection: self
			     didReceiveNotice: notice
					 user: user];


		return;
	}
}

- (void)processLine: (OFString*)line
{

				selector: @selector(socket:didReceiveLine:
					      exception:)];
}

- (OFSet*)usersInChannel: (OFString*)channel
{
	return [[[_channels objectForKey: channel] copy] autorelease];
}
@end

@implementation OFObject (IRCConnectionDelegate)
- (void)connection: (IRCConnection*)connection
    didReceiveLine: (OFString*)line
{
}

- (void)connection: (IRCConnection*)connection
       didSendLine: (OFString*)line
{
}

- (void)connectionWasEstablished: (IRCConnection*)connection
{
}

- (void)connection: (IRCConnection*)connection
	didSeeUser: (IRCUser*)user
       joinChannel: (OFString*)channel
{
}

- (void)connection: (IRCConnection*)connection
	didSeeUser: (IRCUser*)user
      leaveChannel: (OFString*)channel
	    reason: (OFString*)reason
{
}

- (void)connection: (IRCConnection*)connection
        didSeeUser: (IRCUser*)user
  changeNicknameTo: (OFString*)nickname
{
}

- (void)connection: (IRCConnection*)connection
	didSeeUser: (IRCUser*)user
	  kickUser: (OFString*)kickedUser
	   channel: (OFString*)channel
	    reason: (OFString*)reason
{
}

- (void)connection: (IRCConnection*)connection
    didSeeUserQuit: (IRCUser*)user
	    reason: (OFString*)reason
{
}

-  (void)connection: (IRCConnection*)connection
  didReceiveMessage: (OFString*)msg
	    channel: (OFString*)channel
	       user: (IRCUser*)user
{
}

-	  (void)connection: (IRCConnection*)connection
  didReceivePrivateMessage: (OFString*)msg
		      user: (IRCUser*)user
{
}

- (void)connection: (IRCConnection*)connection
  didReceiveNotice: (OFString*)notice
	   channel: (OFString*)channel
	      user: (IRCUser*)user
{
}

- (void)connection: (IRCConnection*)connection
  didReceiveNotice: (OFString*)notice
	      user: (IRCUser*)user
{
}

-	   (void)connection: (IRCConnection*)connection
  didReceiveNamesForChannel: (OFString*)channel
{
}

- (void)connectionWasClosed: (IRCConnection*)connection
{
}
@end