XSSkype.m

//
//  XSSkype.m
//  SkypeToAddressBook
//
//  Created by Xavi Aracil on 07/11/09.
//  Copyright 2009 xaracSoft (Xavi Aracil Diaz). All rights reserved.
//

#import "XSSkype.h"

@interface XSSkype () 
- (void) applicationLaunched:(NSNotification *) notification;
- (void) internalConnect;
@end

@implementation XSSkype

@synthesize appName, delegate, connected;

- (void) applicationLaunched:(NSNotification *) notification
{
    NSDictionary *userInfo = [notification userInfo];
    NSString *applicationLaunched = [userInfo valueForKey:@"NSApplicationName"];
    if ([@"Skype" isEqualToString:applicationLaunched]) {
        [self internalConnect];        
    }
}

- (void) internalConnect
{
    // setting delegate
    [SkypeAPI setSkypeDelegate:self];
    
    // connecting
    [SkypeAPI connect];

}

- (void) connect 
{
	// load Skype
	if ([SkypeAPI isSkypeRunning] == NO) {
        NSNotificationCenter *notCenter = [[NSWorkspace sharedWorkspace] notificationCenter];
        [notCenter addObserver:self
                      selector:@selector(applicationLaunched:)
                          name:NSWorkspaceDidLaunchApplicationNotification 
                        object:nil]; // Register for all notifications
		
        if (![[NSWorkspace sharedWorkspace] launchApplication:@"Skype"]){
            if ([delegate respondsToSelector:@selector(skypeIsNotInstalled)]) {
                [delegate performSelector:@selector(skypeIsNotInstalled)];
            }
            return;
        };
        
        
	} else {
        [self internalConnect];
    }
	
}

- (id) initWithAppName:(NSString *) name
{
	self = [super init];
	if (self != nil) {
		connected = NO;
		appName = name;
		calls = [[NSMutableDictionary alloc] init];
		lastCallId = 0;
	}
	return self;
}

- (void) dealloc
{
	[calls release];
	[delegate release];
	[appName release];
	[super dealloc];
}

-(void) sendCommand:(NSString *) command responder:(id<XSSkypeResponder>) responder {
    if (connected == NO) return;
    
	NSString *callId = [NSString stringWithFormat:@"#%d", lastCallId++];
	NSString *skypeCommand = [NSString stringWithFormat:@"%@ %@", callId, command];
	[calls setObject:responder forKey:callId];
    [SkypeAPI sendSkypeCommand: skypeCommand];	
}

# pragma mark Skype delegate methods
- (NSString*)clientApplicationName {
	return appName;
}

// This is the main delegate method Skype uses to send information to your application. 
// aNotificationString is a Skype API string as described in Skype API protocol documentation.
- (void)skypeNotificationReceived:(NSString*)aNotificationString {
	NSLog(@"Message from skype: %@", aNotificationString);
	// get identifier, if so
	if ([aNotificationString characterAtIndex:0] == '#') {
		NSScanner *theScanner = [NSScanner scannerWithString:aNotificationString];
		NSCharacterSet *characterSet = [NSCharacterSet whitespaceCharacterSet];
		NSString *callId = nil;
		NSString *response = nil;
		if ([theScanner isAtEnd] == NO) {
			[theScanner scanUpToCharactersFromSet:characterSet intoString:&callId];
			response = [[theScanner string] substringFromIndex:[theScanner scanLocation]];
		}
		
        id responder = [calls objectForKey:callId];
        if ([responder conformsToProtocol:@protocol(XSSkypeResponder)]) {
            [responder response:response];
        }
        /*
            [SkypeAPI removeSkypeDelegate];
            [SkypeAPI disconnect];
            connected = NO;
         */
	}	 
}

// This method is called after Skype API client application has called connect. 
// aAttachResponseCode is 0 on failure and 1 on success.
- (void)skypeAttachResponse:(unsigned)aAttachResponseCode {
	if (aAttachResponseCode) {
		connected = YES;
		if ([delegate respondsToSelector:@selector(skypeDidConnect)]) {
			[delegate performSelector:@selector(skypeDidConnect)];
		}
	} else {
        if ([delegate respondsToSelector:@selector(skypeDidFailConnect)]) {
            [delegate performSelector:@selector(skypeDidFailConnect)];
        }
	}
}

// This method is called after Skype has been launched.
- (void)skypeBecameAvailable:(NSNotification*)aNotification {
	if (connected == NO) {
		[self connect];
	}
}

// This method is called after Skype has quit.
- (void)skypeBecameUnavailable:(NSNotification*)aNotification {
	NSLog(@"skypeBecameUnavailable");
    connected = NO;
}

@end