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#import <FPWCSApi2/FPWCSApi2.h>

- (FPWCSApi2Session *)connect {
    FPWCSApi2SessionOptions *options = [[FPWCSApi2SessionOptions alloc] init];
    url =[[NSURL alloc] initWithString:_connectUrl.text];
    options.urlServer = [NSString stringWithFormat:@"%@://%@:%@", url.scheme, url.host, url.port];
    streamName = [url.path.stringByDeletingPathExtension stringByReplacingOccurrencesOfString: @"/" withString:@""];
    options.appKey = @"defaultApp";
    NSError *error;
    FPWCSApi2Session *session = [FPWCSApi2 createSession:options error:&error];
    if (!session) {
        UIAlertController * alert = [UIAlertController
                                     alertControllerWithTitle:@"Failed to connect"
                                     message:error.localizedDescription
                                     preferredStyle:UIAlertControllerStyleAlert];
        
        UIAlertAction* okButton = [UIAlertAction
                                   actionWithTitle:@"Ok"
                                   style:UIAlertActionStyleDefault
                                   handler:^(UIAlertAction * action) {
                                       [self onDisconnected];
                                   }];
        
        [alert addAction:okButton];
        [self presentViewController:alert animated:YES completion:nil];
        return nil;
    }
    
    [session on:kFPWCSSessionStatusEstablished callback:^(FPWCSApi2Session *rSession){
        [self changeConnectionStatus:[rSession getStatus]];
        [self onConnected:rSession];
    }];
    
    [session on:kFPWCSSessionStatusDisconnected callback:^(FPWCSApi2Session *rSession){
        [self changeConnectionStatus:[rSession getStatus]];
        [self onDisconnected];
    }];
    
    [session on:kFPWCSSessionStatusFailed callback:^(FPWCSApi2Session *rSession){
        [self changeConnectionStatus:[rSession getStatus]];
        [self onDisconnected];
    }];
    [session ...
    [session connect];
    return session;
}

- (void)onConnected:(FPWCSApi2Session *)session {
    [self publishStream];
}

- (FPWCSApi2Stream *)publishStream {
    FPWCSApi2Session *session = [FPWCSApi2 getSessions][0];
    FPWCSApi2StreamOptions *options = [[FPWCSApi2StreamOptions alloc] init];
    options.name = streamName;
    options.display = _remoteDisplay;
    options.record = true;
    if ( UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad ) {
        options.constraints = [[FPWCSApi2MediaConstraints alloc] initWithAudio:YES videoWidth:640 videoHeight:480 videoFps:15];
    }
    NSError *error;
    FPWCSApi2Stream *stream = [session createStream:options error:&error];
    if (!stream) {
        UIAlertController * alert = [UIAlertController
                                     alertControllerWithTitle:@"Failed to publish"
                                     message:error.localizedDescription
                                     preferredStyle:UIAlertControllerStyleAlert];
        
        UIAlertAction* okButton = [UIAlertAction
                                   actionWithTitle:@"Ok"
                                   style:UIAlertActionStyleDefault
                                   handler:^(UIAlertAction * action) {
                                       [session disconnect];
                                   }];
        
        [alert addAction:okButton];
        [self presentViewController:alert animated:YES completion:nil];
        return nil;
    }
    [stream on:kFPWCSStreamStatusPublishing callback:^(FPWCSApi2Stream *rStream){
        [self changeStreamStatus:rStream];
        [self onPublishing:rStream];
    }];
    
    [stream on:kFPWCSStreamStatusUnpublished callback:^(FPWCSApi2Stream *rStream){
        [self changeStreamStatus:rStream];
        [self onUnpublished];
    }];
    
    [stream on:kFPWCSStreamStatusFailed callback:^(FPWCSApi2Stream *rStream){
        [self changeStreamStatus:rStream];
        [self onUnpublished];
    }];
    ...
    if(![stream publish:&error]) {
        UIAlertController * alert = [UIAlertController
                                     alertControllerWithTitle:@"Failed to publish"
                                     message:error.localizedDescription
                                     preferredStyle:UIAlertControllerStyleAlert];
        
        UIAlertAction* okButton = [UIAlertAction
                                   actionWithTitle:@"Ok"
                                   style:UIAlertActionStyleDefault
                                   handler:^(UIAlertAction * action) {
                                       [session disconnect];
                                   }];
        
        [alert addAction:okButton];
        [self presentViewController:alert animated:YES completion:nil];
    }
    return stream;
}

- (void)onPublishing:(FPWCSApi2Stream *)stream {
    [_startButton setTitle:@"STOP" forState:UIControlStateNormal];
    [self changeViewState:_startButton enabled:YES];
    recordName = [stream getRecordName];
}

- (void)startButton:(UIButton *)button {
    [self changeViewState:button enabled:NO];
    if ([button.titleLabel.text isEqualToString:@"STOP"]) {
        if ([FPWCSApi2 getSessions].count) {
            FPWCSApi2Session *session = [FPWCSApi2 getSessions][0];
            NSLog(@"Disconnect session with server %@", [session getServerUrl]);
            [session disconnect];
        } else {
            NSLog(@"Nothing to disconnect");
            [self onDisconnected];
        }
    } else {
        [self changeViewState:_connectUrl enabled:NO];
        [self connect];
    }
}

- (void)onDisconnected {
    [self changeViewState:_connectUrl enabled:YES];
    [self onUnpublished];
    if (url && recordName) {
//        NSString *urlString = @"http://www.sample-videos.com/video/mp4/720/big_buck_bunny_720p_1mb.mp4";
        NSString *urlString = [NSString stringWithFormat:@"http://%@:9091/client/records/%@", url.host, recordName];
        _recordLink.text = urlString;
        [self playVideo: urlString];
    }
}

- (void)playVideo:(NSString *)urlString {
    NSURL *url = [NSURL URLWithString:urlString];
    AVURLAsset *movieAsset = [AVURLAsset URLAssetWithURL:url options:nil];
    [movieAsset.resourceLoader setDelegate:self queue:dispatch_get_main_queue()];
    
    AVPlayerItem *playerItem = [AVPlayerItem playerItemWithAsset:movieAsset];
    _player = [AVPlayer playerWithPlayerItem:playerItem];
    _playerViewController.player = _player;
    [_player play];
}