gistfile1.m

- (IBAction)showButtonTapped:(id)sender {
    NSMutableDictionary *nutritionPrefs = [[NSUserDefaults standardUserDefaults]objectForKey:@"nutritionPrefs"];
    NSMutableDictionary *cuisinePrefs = [[NSUserDefaults standardUserDefaults]objectForKey:@"cuisinePrefs"];
    NSMutableDictionary *typeOfDishPrefs = [[NSUserDefaults standardUserDefaults]objectForKey:@"typeOfDishPrefs"];
    NSMutableDictionary *ingredientsPrefs = [[NSUserDefaults standardUserDefaults]objectForKey:@"ingredientsPrefs"];
    
    //Get dining preferences from dictionary and add them to an array
    NSMutableArray *diningPrefsArray = [[NSMutableArray alloc]initWithCapacity:1];
    if ([[NSUserDefaults standardUserDefaults]boolForKey:@"DINE IN"]) {
        [diningPrefsArray addObject:@"Dine In"];
    }
    if ([[NSUserDefaults standardUserDefaults]boolForKey:@"TAKE OUT"]) {
        [diningPrefsArray addObject:@"Take Out"];
    }
    if ([[NSUserDefaults standardUserDefaults]boolForKey:@"DELIVERY"]) {
        [diningPrefsArray addObject:@"Delivery"];
    }
    
    //configure the parameter string based on which filter items have been selected
    NSString *params;
    if (nutritionPrefs.count > 0) {
        for (int i = 0; i < [nutritionPrefs allKeys].count; i++) {
            if (i == 0) {
                params = [NSString stringWithFormat:@"?diet[]=%@", [[nutritionPrefs allKeys]objectAtIndex:i]];
            }
            else {
                params = [NSString stringWithFormat:@"%@&diet[]=%@", params,[[nutritionPrefs allKeys]objectAtIndex:i]];
            }
        }
    }
    if (cuisinePrefs.count > 0) {
        for (int i = 0; i < [cuisinePrefs allKeys].count; i++) {
            if (i == 0) {
                if (params.length > 0) {
                    params = [NSString stringWithFormat:@"%@&cuis[]=%@", params, [[cuisinePrefs allKeys]objectAtIndex:i]];
                }
                else {
                    params = [NSString stringWithFormat:@"?cuis[]=%@", [[cuisinePrefs allKeys]objectAtIndex:i]];
                }
            }
            else {
                params = [NSString stringWithFormat:@"%@&cuis[]=%@", params,[[cuisinePrefs allKeys]objectAtIndex:i]];
            }
        }
    }
    if (typeOfDishPrefs.count > 0) {
        for (int i = 0; i < [typeOfDishPrefs allKeys].count; i++) {
            if (i == 0) {
                if (params.length > 0) {
                    params = [NSString stringWithFormat:@"%@&typ[]=%@", params, [[typeOfDishPrefs allKeys]objectAtIndex:i]];
                }
                else {
                    params = [NSString stringWithFormat:@"?typ[]=%@", [[typeOfDishPrefs allKeys]objectAtIndex:i]];
                }
            }
            else {
                params = [NSString stringWithFormat:@"%@&typ[]=%@", params,[[typeOfDishPrefs allKeys]objectAtIndex:i]];
            }
        }
    }
    if (ingredientsPrefs.count > 0) {
        for (int i = 0; i < [ingredientsPrefs allKeys].count; i++) {
            if (i == 0) {
                if (params.length > 0) {
                    params = [NSString stringWithFormat:@"%@&ing[]=%@", params, [[ingredientsPrefs allKeys]objectAtIndex:i]];
                }
                else {
                    params = [NSString stringWithFormat:@"?ing[]=%@", [[ingredientsPrefs allKeys]objectAtIndex:i]];
                }
            }
            else {
                params = [NSString stringWithFormat:@"%@&ing[]=%@", params,[[ingredientsPrefs allKeys]objectAtIndex:i]];
            }
        }
    }
    
    if (diningPrefsArray.count > 0) {
        for (int i = 0; i < diningPrefsArray.count; i++) {
            if (i == 0) {
                if (params.length > 0) {
                    params = [NSString stringWithFormat:@"%@&dine[]=%@", params, [diningPrefsArray objectAtIndex:i]];
                }
                else {
                    params = [NSString stringWithFormat:@"?dine[]=%@", [diningPrefsArray objectAtIndex:i]];
                }
            }
            else {
                params = [NSString stringWithFormat:@"%@&dine[]=%@", params,[diningPrefsArray objectAtIndex:i]];
            }
        }
    }
    
    if (![searchTextField.text isKindOfClass:[NSNull class]] && ![searchTextField.text isEqualToString:@""]) {
        if (params.length > 0) {
            params = [NSString stringWithFormat:@"%@&srch=%@", params, searchTextField.text];
        }
        else {
            params = [NSString stringWithFormat:@"?srch=%@", searchTextField.text];
        }
    }
    
    /*
    //check if user location data is available and if so add it as a parameter
    if ([[NSUserDefaults standardUserDefaults]valueForKey:@"latitude"] && [[NSUserDefaults standardUserDefaults]valueForKey:@"longitude"]) {
        if (params.length > 0) {
            params = [NSString stringWithFormat:@"%@&lat=%@&long=%@", params, [[NSUserDefaults standardUserDefaults]valueForKey:@"latitude"], [[NSUserDefaults standardUserDefaults]valueForKey:@"longitude"]];
        }
        else {
            params = [NSString stringWithFormat:@"?lat=%@&long=%@", [[NSUserDefaults standardUserDefaults]valueForKey:@"latitude"], [[NSUserDefaults standardUserDefaults]valueForKey:@"longitude"]];
        }
    }*/
    
    //URL encode the parameters
    params = [params stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding];
    
    NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"%@menu_items%@", [[NSUserDefaults standardUserDefaults]objectForKey:@"baseUrl"], params]];
    NSLog(@"%@", url);
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:30];
    [request setHTTPMethod:@"GET"];
    
    //Send request to server
    [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue currentQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
        NSMutableArray* jsonObject = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
        if (jsonObject.count > 0) {
            [self setContentList:jsonObject];
            self.navigationItem.leftBarButtonItem = backButton;
            _filterView = NO;
            [searchTextField resignFirstResponder];
            [self hideSearchView];
            [_tableView setFrame:CGRectMake(0, 87, 320, 332)];
            [_tableView reloadData];
        }
        else {
            UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"Healthy Out" message:@"No items found." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
            [alert show];
        }
    }];