guardian / support-service-lambdas - Conditional Complexity

Intro

Conditional complexity (also called cyclomatic complexity) is a term used to measure the complexity of software. The term refers to the number of possible paths through a program function. A higher value ofter means higher maintenance and testing costs (infosecinstitute.com).
Conditional complexity is calculated by counting all conditions in the program that can affect the execution path (e.g. if statement, loops, switches, and/or operators, try and catch blocks...).
Conditional complexity is measured at the unit level (methods, functions...).
Units are classified in four categories based on the measured McCabe index: 1-5 (simple units), 6-10 (medium complex units), 11-25 (complex units), 26+ (very complex units).

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Conditional Complexity Overall

There are 1,261 units with 22,118 lines of code in units (40.1% of code).

0 very complex units (0 lines of code)
0 complex units (0 lines of code)
11 medium complex units (608 lines of code)
48 simple units (1,347 lines of code)
1,202 very simple units (20,163 lines of code)

Legend:

51+

26-50

11-25

6-10

1-5

Alternative Visuals

3D view of all units

Conditional Complexity per Extension

51+

26-50

11-25

6-10

1-5

Conditional Complexity per Logical Component

primary logical decomposition

51+

26-50

11-25

6-10

1-5

Most Complex Units

Top 50 most complex units

Unit	# lines	McCabe index	# params
private def createSteps() in handlers/holiday-stop-api/src/main/scala/com/gu/holiday_stops/Handler.scala	47	22	3
def apply() in handlers/batch-email-sender/src/main/scala/com/gu/batchemailsender/api/batchemail/SalesforceToBrazeCampaignMapping.scala	24	19	1
def apply[F[_]: Effect]() in handlers/digital-voucher-api/src/main/scala/com/gu/digital_voucher_api/DigitalVoucherApiRoutes.scala	130	15	1
override def handleRequest() in handlers/soft-opt-in-consent-setter/src/main/scala/com/gu/soft_opt_in_consent_setter/HandlerIAP.scala	80	14	2
def apply() in handlers/identity-backfill/src/main/scala/com/gu/identityBackfill/salesforce/GetSFContactSyncCheckFields.scala	40	14	1
def productMappings() in handlers/soft-opt-in-consent-setter/src/main/scala/com/gu/soft_opt_in_consent_setter/models/ConsentsMapping.scala	13	13	2
private def getSupporterPlusData() in handlers/product-move-api/src/main/scala/com/gu/productmove/endpoint/updateamount/UpdateSupporterPlusAmountSteps.scala	39	12	2
def attemptDecode[A]() in handlers/product-move-api/src/main/scala/com/gu/productmove/zuora/rest/ZuoraClient.scala	33	12	1
private def dataExtensionFor() in handlers/new-product-api/src/main/scala/com/gu/newproduct/api/addsubscription/email/SendConfirmationEmail.scala	13	11	1
def apply() in handlers/new-product-api/src/main/scala/com/gu/newproduct/api/addsubscription/Handler.scala	16	11	1
def apply[F[_]: Sync, S]() in lib/salesforce/sttp-client/src/main/scala/com/gu/salesforce/sttp/SalesforceClient.scala	173	11	3
def forStage() in handlers/holiday-stop-processor/src/main/scala/com/gu/holidaystopprocessor/HolidayCreditProduct.scala	25	10	1
override def sendEmail() in handlers/product-move-api/src/main/scala/com/gu/productmove/SQS.scala	48	10	1
def update[R: JsonDecoder]() in handlers/product-move-api/src/main/scala/com/gu/productmove/zuora/SubscriptionUpdate.scala	55	10	2
private[productmove] def subscriptionCancel() in handlers/product-move-api/src/main/scala/com/gu/productmove/endpoint/cancel/SubscriptionCancelEndpointSteps.scala	73	9	3
private def createSubscriptionData() in lib/zuora-core/src/main/scala/com/gu/zuora/subscription/SubscriptionData.scala	66	9	4
def fromDayOfWeek() in handlers/new-product-api/src/main/scala/com/gu/newproduct/api/productcatalog/WireModel.scala	9	8	1
private def validateOldMembershipPrice() in handlers/product-move-api/src/main/scala/com/gu/productmove/endpoint/move/switchtype/ToRecurringContribution.scala	31	8	3
private def impl() in handlers/product-move-api/src/main/scala/com/gu/productmove/SQS.scala	55	8	1
def create() in handlers/product-move-api/src/main/scala/com/gu/productmove/zuora/Subscribe.scala	37	8	2
def steps() in handlers/dev-env-cleaner/src/main/scala/com/gu/cleaner/Handler.scala	61	8	8
def fromString() in handlers/stripe-webhook-endpoints/src/main/scala/com/gu/stripeCardUpdated/CardUpdatedMessageBody.scala	10	8	1
def parseFailureTo500ApiResponse() in handlers/holiday-stop-api/src/main/scala/com/gu/holiday_stops/SFErrorExposer.scala	25	8	1
private def billingPeriodForName() in lib/zuora-core/src/main/scala/com/gu/zuora/subscription/RatePlanChargeBillingSchedule.scala	20	8	2
def round2Places() in lib/zuora-core/src/main/scala/com/gu/zuora/subscription/RatePlanChargeData.scala	20	8	1
def toJobResultResponse() in lib/zuora-reports/src/main/scala/com/gu/zuora/reports/GetJobResult.scala	20	8	4
override def reads() in lib/holiday-stops/src/main/scala/com/gu/salesforce/holiday_stops/SalesforceHolidayStopRequest.scala	44	8	1
def supporterPlusLimitsfor() in lib/zuora-models/src/main/scala/com/gu/newproduct/api/addsubscription/validation/supporterplus/AmountLimits.scala	9	8	1
private def executeCancel() in handlers/zuora-callout-apis/src/main/scala/com/gu/autoCancel/AutoCancel.scala	34	7	2
private[autoCancel] def applyCreditBalances() in handlers/zuora-callout-apis/src/main/scala/com/gu/autoCancel/AutoCancel.scala	22	7	3
def contributionLimitsfor() in handlers/new-product-api/src/main/scala/com/gu/newproduct/api/addsubscription/validation/AmountLimits.scala	8	7	1
def getJobStatus() in handlers/sf-datalake-export/src/main/scala/com/gu/sf_datalake_export/handlers/GetBatchesHandler.scala	12	7	1
def assertSubscriptionBelongsToIdentityUser() in handlers/product-move-api/src/main/scala/com/gu/productmove/endpoint/move/ProductMoveEndpointSteps.scala	21	7	4
private def getExpiryDateForValidSubscription() in handlers/digital-subscription-expiry/src/main/scala/com/gu/digitalSubscriptionExpiry/zuora/GetSubscriptionExpiry.scala	24	7	3
def apply() in handlers/identity-backfill/src/main/scala/com/gu/identityBackfill/FindExistingIdentityId.scala	19	7	2
def deleteQueueItems() in handlers/sf-emails-to-s3-exporter/src/main/scala/com/gu/sf_emails_to_s3_exporter/Handler.scala	29	7	2
def ratePlanCharge() in lib/zuora-core/src/main/scala/com/gu/zuora/subscription/Subscription.scala	18	7	1
private def apply() in lib/zuora-core/src/main/scala/com/gu/zuora/subscription/RatePlanChargeBillingSchedule.scala	39	7	3
async authenticate() in modules/identity/src/apiGateway.ts	70	7	1
private def handle() in handlers/batch-email-sender/src/main/scala/com/gu/batchemailsender/api/batchemail/Handler.scala	33	6	1
def fromSummary() in handlers/zuora-callout-apis/src/main/scala/com/gu/autoCancel/AutoCancel.scala	15	6	3
def paymentFailureId() in handlers/zuora-callout-apis/src/main/scala/com/gu/util/email/EmailSendSteps.scala	7	6	1
private def paymentPlansFor() in handlers/new-product-api/src/main/scala/com/gu/newproduct/api/productcatalog/NewProductApi.scala	20	6	3
def forStage() in handlers/delivery-problem-credit-processor/src/main/scala/com/gu/deliveryproblemcreditprocessor/DeliveryCreditProduct.scala	24	6	1
def apply: GetSfAddressOverride =() in handlers/sf-contact-merge/src/main/scala/com/gu/sf_contact_merge/getsfcontacts/GetSfAddressOverride.scala	19	6	1
def isBelowMinimumStripeCharge() in handlers/product-move-api/src/main/scala/com/gu/productmove/zuora/BuildPreviewResult.scala	27	6	1
def dateToCancel() in handlers/dev-env-cleaner/src/main/scala/com/gu/cleaner/Handler.scala	23	6	2
export function getLastPaymentDateBeforeDiscountExpiry() in handlers/discount-expiry-notifier/src/handlers/getOldPaymentAmount.ts	23	6	2
def createPaymentMethod() in handlers/stripe-webhook-endpoints/src/main/scala/com/gu/stripeCardUpdated/CardUpdatedSteps.scala	31	6	1
def handler() in handlers/stripe-webhook-endpoints/src/main/scala/com/gu/paymentIntentIssues/Lambda.scala	25	6	1