// Record only requests sent to apple.com
configuration.hostFilter = @[@"apple.com"];

// Record all requests which has been sent to httpbin service.
configuration.hostsFilter = ^BOOL (NSString *host) {
    return [host rangeOfString:@"httpbin"].location != NSNotFound;
};

/**
 * In example below, we return path segment where any occurrence of our
 * username replaced with 'bob'.
 */
configuration.pathFilter = ^NSString *(NSURLRequest *request) {
    return [request.URI.path stringByReplacingOccurrencesOfString:@"<username>" withString:@"bob"];
};

/**
 * In example below, we remove 'token' query and replace 'signature' with
 * own value which will be stored as stub.
 */
configuration.queryParametersFilter = @{ @"token": [NSNull null], @"signature": @"secret-signature" };

// This block is identical to filter configuration with NSDictionary above.
configuration.queryParametersFilter = ^(NSURLRequest *request, NSMutableDictionary *queryParameters) {
    [queryParameters removeObjectForKey:@"token"];
    queryParameters[@"signature"] = @"secret-signature";
};

/**
 * In example below allow to remove 'fullName' and replace 'pwd' field in 
 * POST body represented by 'application/json' or 
 * 'application/x-www-form-urlencoded' content-type.
 */
configuration.postBodyFilter = @{ @"fullName": [NSNull null], @"pwd": @"pwd" };

/**
 * In example below, we replace 'sender:alex' string in POST body with 
 * 'sender:bob' which will be part of stored stub.
 */
configuration.postBodyFilter = ^NSData * (NSURLRequest *request, NSData *body) {
    NSString *message = [[NSString alloc] initWithData:body encoding:NSUTF8StringEncoding];
    message = [request.URI.path stringByReplacingOccurrencesOfString:@"sender:alex" withString:@"sender:bob"];

    return [message dataUsingEncoding:NSUTF8StringEncoding];
};

/**
 * In example below allow to remove 'token' from response body represented 
 * by 'application/json' or 'application/x-www-form-urlencoded' content-type.
 */
configuration.responseBodyFilter = @{ @"token": [NSNull null] };

/**
 * In example below, we remove 'sender:bob' string from response body before 
 * it will be stored as stub.
 */
configuration.responseBodyFilter = ^NSData * (NSURLRequest *request, NSHTTPURLResponse *response, NSData *data) {
    NSString *responseString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
    responseString = [request.URI.path stringByReplacingOccurrencesOfString:@"sender:bob" withString:@""];

    return [responseString dataUsingEncoding:NSUTF8StringEncoding];
};

/**
 * In example below, we change used HTTP method.
 */
configuration.beforeRecordRequest = ^NSURLRequest *(NSURLRequest *request) {
    NSMutableURLRequest *changedRequest = [request mutableCopy];
    changedRequest.HTTPMethod = @"GET";
    
    return changedRequest;
};

/**
 * In example below, we remove received service data from stub.
 */
configuration.beforeRecordRequest = ^NSArray * (NSURLRequest *request, NSHTTPURLResponse *response, NSData *data) {
    return @[response];
};

NSString *uniquePath = [@[NSTemporaryDirectory(), [NSUUID UUID].UUIDString] 
                        componentsJoinedByString:@"/"];

[YHVVCR setupWithConfiguration:^(YHVConfiguration *configuration) {
    configuration.cassettesPath = [uniquePath stringByAppendingPathExtension:@"bundle"];
    configuration.hostFilter = @[@"apple.com"];
}];

// Insert cassette restored from JSON.
YHVCassette *cassette = [YHVVCR insertCassetteWithPath:@"SearchStubCassette"];

YHVCassette *cassette = [YHVVCR insertCassetteWithConfiguration:^(YHVConfiguration *configuration) {
    configuration.cassettePath = @"SearchStubCassette";
    configuration.playbackMode = YHVMomentaryPlayback;
}];

[YHVVCR insertCassetteWithPath:@"SearchStubCassette"];
// Work with stubbed data.
[YHVVCR ejectCassette];

[YHVVCR registerMatcher:@"hostAndPort" withBlock:^BOOL (NSURLRequest *request, NSURLRequest *stubRequest) {
    YHVMatcherBlock hostMatcher = YHVVCR.matchers[YHVMatchers.host];
    YHVMatcherBlock portMatcher = YHVVCR.matchers[YHVMatchers.port];
    
    return hostMatcher(request, stubRequest) && portMatcher(request, stubRequest);
}];

// Remove previously added matcher.
[YHVVCR unregisterMatcher:@"hostAndPort"];

- (BOOL)shouldSetupVCR {
    // Use VCR only in case if test case method contain 'Stubbed' in it's name.
    return [self.name rangeOfString:@"Stubbed"].location != NSNotFound;
}

- (void)updateVCRConfigurationFromDefaultConfiguration:(YHVConfiguration *)configuration {
    /** 
     * Record any requests from test case which contain 'OutdatedStub' in it's 
     * name (something changed and stubbed data should be reloaded).
     */
    if ([self.name rangeOfString:@"OutdatedStub"].location != NSNotFound) {
        configuration.recordMode = YHVRecordAll;
    }
}

- (void)updateVCRConfigurationFromDefaultConfiguration:(YHVConfiguration *)configuration {
    /**
     * Change responses playback flow from chronological to momentary - in this
     * mode when requested, stubbed data will be returned till data task will 
     * report completion.
     */ 
    if ([self.name rangeOfString:@"Momentary"].location != NSNotFound) {
        configuration.playbackMode = YHVMomentaryPlayback;
    }
}