BT Report To Cloud

//reportToCloud...
-(void)reportToCloud{
    [BT_debugger showIt:self message:[NSString stringWithFormat:@"reportToCloud%@", @""]];

    //if we do not have any reportToCloud results yet, make a fake one...
    if(![BT_fileManager doesLocalFileExist:[self modifiedFileName]]){
        [BT_fileManager saveTextFileToCacheWithEncoding:@"blankLastModified" fileName:self.modifiedFileName encodingFlag:-1];
    }


    //ignore if we are refreshing...
    if(![self isRefreshing]){
        NSString *useURL = @"";
        //app's configuration data must have  a "dataURL" and a "reportToCloudURL"...
        if([[self.rootApp dataURL] length] > 1 && [[self.rootApp reportToCloudURL] length] > 1){
            useURL = [self.rootApp reportToCloudURL];
        }else{
            [BT_debugger showIt:self theMessage:[NSString stringWithFormat:@"not reporting to cloud, no dataURL or reportToCloudURL%@", @""]];
        }
        if ([useURL length] > 3) {
            //if we have a currentMode in the BT_config.txt IN THE PROJECT, append it to the end of the URL...
            if([[self currentMode] length] > 0){
                useURL = [useURL stringByAppendingString:[NSString stringWithFormat:@"&currentMode=%@", [self currentMode]]];
            }
            //the dataURL may contain merge fields...
            [BT_debugger showIt:self theMessage:[NSString stringWithFormat:@"reporting to cloud at : %@", useURL]];
            NSString *tmpURL = [BT_strings mergeBTVariablesInString:useURL];
            NSURL *escapedURL = [NSURL URLWithString:[tmpURL stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLFragmentAllowedCharacterSet]]];

            ////////////////////////////
            // start of replacement code
            NSURLSessionConfiguration *defaultConfigObject = [NSURLSessionConfiguration defaultSessionConfiguration];
            NSURLSession *defaultSession = [NSURLSession sessionWithConfiguration: defaultConfigObject delegate: nil delegateQueue: [NSOperationQueue mainQueue]];

            //            NSURL * url = [NSURL URLWithString:mySQLServerURL];
            //            NSMutableURLRequest * request = [NSMutableURLRequest requestWithURL:url];
            NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init] ;
            [request setURL:escapedURL];
            [request setHTTPMethod:@"GET"];
            NSURLSessionDataTask * dataTask =[defaultSession dataTaskWithRequest: request completionHandler: ^(NSData *data, NSURLResponse *response, NSError *error) {
                /////////////
                [BT_debugger showIt:self theMessage:[NSString stringWithFormat:@"Response: %@ -|- %@\n", response, error]];
                /////////////
                if(error == nil) {
                    [self doSomethingOK:data];
                    NSString * returnText = [[NSString alloc] initWithData: data encoding: NSUTF8StringEncoding];
                    [BT_debugger showIt:self theMessage:[NSString stringWithFormat:@"Returned Data: %@", returnText]];
                }
                /////////////
            }];
            [dataTask resume];
        }
    }//isRefreshing...

}
////////////
-(void) doSomethingOK:(NSData *)returnData {
    //save data as "lastModified" file
    NSString *dStringData = [[NSString alloc] initWithData:returnData encoding:NSASCIIStringEncoding];
    if([dStringData length] > 3){

        //returned data format: {"lastModifiedUTC":"2011-02-22 02:13:25"}
        NSString *lastModified = @"";
        NSString *previousModified = @"";

        //parse returned JSON data
        SBJsonParser *parser = [SBJsonParser new];
        id jsonData = [parser objectWithString:dStringData];
        if(jsonData){
            if([jsonData objectForKey:@"lastModifiedUTC"]){
                lastModified = [jsonData objectForKey:@"lastModifiedUTC"];
                [BT_debugger showIt:self theMessage:[NSString stringWithFormat:@"lastModified (value on server): %@", lastModified]];
            }
        }

        //parse previous saved data
        if([BT_fileManager doesLocalFileExist:self.modifiedFileName]){
            NSString *previousData = [BT_fileManager readTextFileFromCacheWithEncoding:self.modifiedFileName encodingFlag:-1];
            SBJsonParser *parser = [SBJsonParser new];
            id jsonData = [parser objectWithString:previousData];
            if(jsonData){
                if([jsonData objectForKey:@"lastModifiedUTC"]){
                    previousModified = [jsonData objectForKey:@"lastModifiedUTC"];
                    [BT_debugger showIt:self theMessage:[NSString stringWithFormat:@"previousModified (value on device): %@", previousModified]];
                }
            }
        }

        //save a copy of the lastModified text for next time..
        BOOL saved = [BT_fileManager saveTextFileToCacheWithEncoding:dStringData fileName:self.modifiedFileName encodingFlag:-1];
        if(saved){};

        //if value are not emtpy, and different....ask user to confirm refresh...
        if([lastModified length] > 3 && [previousModified length] > 3){
            if(![lastModified isEqualToString:previousModified]){

                //show alert with confirmation...
                UIAlertController * alertView = [UIAlertController
                                                 alertControllerWithTitle:@"Refresh Data"
                                                 message:NSLocalizedString(@"updatesAvailable", "This app's content has changed, would you like to refresh?")
                                                 preferredStyle:UIAlertControllerStyleAlert];

                UIAlertAction* yesButton = [UIAlertAction actionWithTitle:@"Yes" style:UIAlertActionStyleDefault handler:^(UIAlertAction * action) { [self clickedOnButton:12]; }];
                UIAlertAction* noButton = [UIAlertAction actionWithTitle:@"No" style:UIAlertActionStyleDefault handler:^(UIAlertAction * action) { [self clickedOnButton:0]; }];
                [alertView addAction:yesButton];
                [alertView addAction:noButton];
                [self.rootApp.rootNavController  presentViewController:alertView animated:YES completion:nil];
            }
        }else{
            [BT_debugger showIt:self theMessage:[NSString stringWithFormat:@"%@ does not exist in the cache. Not checking for updates.", self.modifiedFileName]];
        }
    }
}


-(void)clickedOnButton:(int)alertTag {

    if(alertTag == 0){
        //do nothing...
    }

    if(alertTag == 12){
        [self refreshAppData];
    }
}