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snowplow/snowplow-javascript-tracker

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libraries/browser-tracker-core/src/tracker/index.ts

Summary

Maintainability
F
2 wks
Test Coverage

Function Tracker has a Cognitive Complexity of 311 (exceeds 5 allowed). Consider refactoring.
Open

export function Tracker(
  trackerId: string,
  namespace: string,
  version: string,
  endpoint: string,
Severity: Minor
Found in libraries/browser-tracker-core/src/tracker/index.ts - About 6 days to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function Tracker has 873 lines of code (exceeds 25 allowed). Consider refactoring.
Open

export function Tracker(
  trackerId: string,
  namespace: string,
  version: string,
  endpoint: string,
Severity: Major
Found in libraries/browser-tracker-core/src/tracker/index.ts - About 4 days to fix

    Function newTracker has 851 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

      const newTracker = (
    trackerId: string,
    namespace: string,
    version: string,
    endpoint: string,
    Severity: Major
    Found in libraries/browser-tracker-core/src/tracker/index.ts - About 4 days to fix

      File index.ts has 975 lines of code (exceeds 250 allowed). Consider refactoring.
      Open

      import {
  trackerCore,
  buildPagePing,
  buildPageView,
  CommonEventProperties,
      Severity: Major
      Found in libraries/browser-tracker-core/src/tracker/index.ts - About 2 days to fix

        Function getBrowserDataPlugin has 67 lines of code (exceeds 25 allowed). Consider refactoring.
        Open

            function getBrowserDataPlugin() {
      const anonymizeOr = (value?: string | number | null) => (configAnonymousTracking ? null : value);
      const anonymizeSessionOr = (value?: string | number | null) =>
        configAnonymousSessionTracking ? value : anonymizeOr(value);
        Severity: Major
        Found in libraries/browser-tracker-core/src/tracker/index.ts - About 2 hrs to fix

          Function beforeTrack has 60 lines of code (exceeds 25 allowed). Consider refactoring.
          Open

                  beforeTrack: (payloadBuilder: PayloadBuilder) => {
          const existingSession = getSnowplowCookieValue('ses'),
            idCookie = loadDomainUserIdCookie();

          const isFirstEventInSession = eventIndexFromIdCookie(idCookie) === 0;
          Severity: Major
          Found in libraries/browser-tracker-core/src/tracker/index.ts - About 2 hrs to fix

            Function clearUserDataAndCookies has 26 lines of code (exceeds 25 allowed). Consider refactoring.
            Open

                function clearUserDataAndCookies(configuration?: ClearUserDataConfiguration) {
      const idname = getSnowplowCookieName('id');
      const sesname = getSnowplowCookieName('ses');
      attemptDeleteLocalStorage(idname);
      attemptDeleteLocalStorage(sesname);
            Severity: Minor
            Found in libraries/browser-tracker-core/src/tracker/index.ts - About 1 hr to fix

              Function Tracker has 6 arguments (exceeds 4 allowed). Consider refactoring.
              Open

                trackerId: string,
  namespace: string,
  version: string,
  endpoint: string,
  sharedState: SharedState,
              Severity: Minor
              Found in libraries/browser-tracker-core/src/tracker/index.ts - About 45 mins to fix

                Avoid too many return statements within this function.
                Open

                      return false;
                Severity: Major
                Found in libraries/browser-tracker-core/src/tracker/index.ts - About 30 mins to fix

                  Avoid too many return statements within this function.
                  Open

                          return currentUrl.pathname != previousUrl.pathname || currentUrl.search != previousUrl.search;
                  Severity: Major
                  Found in libraries/browser-tracker-core/src/tracker/index.ts - About 30 mins to fix

                    Avoid too many return statements within this function.
                    Open

                            return currentUrl.pathname != previousUrl.pathname;
                    Severity: Major
                    Found in libraries/browser-tracker-core/src/tracker/index.ts - About 30 mins to fix

                      Similar blocks of code found in 2 locations. Consider refactoring.
                      Open

                            getAnonymousServerTracking = (config: TrackerConfiguration) => {
        if (typeof config.anonymousTracking === 'boolean') {
          return false;
        }
        return config.anonymousTracking?.withServerAnonymisation === true ?? false;
                      Severity: Major
                      Found in libraries/browser-tracker-core/src/tracker/index.ts and 1 other location - About 1 hr to fix
                      libraries/browser-tracker-core/src/tracker/index.ts on lines 148..153

                      Duplicated Code

                      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                      Tuning

                      This issue has a mass of 56.

                      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                      Refactorings

                      Further Reading

                      Similar blocks of code found in 2 locations. Consider refactoring.
                      Open

                            getAnonymousSessionTracking = (config: TrackerConfiguration) => {
        if (typeof config.anonymousTracking === 'boolean') {
          return false;
        }
        return config.anonymousTracking?.withSessionTracking === true ?? false;
                      Severity: Major
                      Found in libraries/browser-tracker-core/src/tracker/index.ts and 1 other location - About 1 hr to fix
                      libraries/browser-tracker-core/src/tracker/index.ts on lines 154..159

                      Duplicated Code

                      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                      Tuning

                      This issue has a mass of 56.

                      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                      Refactorings

                      Further Reading

                      Similar blocks of code found in 2 locations. Consider refactoring.
                      Open

                              if (lastActivityTime + config.configMinimumVisitLength > now.getTime()) {
          executePagePing(config.callback, finalizeContexts(context, contextCallback));
        }
                      Severity: Minor
                      Found in libraries/browser-tracker-core/src/tracker/index.ts and 1 other location - About 35 mins to fix
                      libraries/browser-tracker-core/src/tracker/index.ts on lines 1143..1145

                      Duplicated Code

                      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                      Tuning

                      This issue has a mass of 46.

                      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                      Refactorings

                      Further Reading

                      Similar blocks of code found in 2 locations. Consider refactoring.
                      Open

                              if (lastActivityTime + config.configHeartBeatTimer > now.getTime()) {
          executePagePing(config.callback, finalizeContexts(context, contextCallback));
        }
                      Severity: Minor
                      Found in libraries/browser-tracker-core/src/tracker/index.ts and 1 other location - About 35 mins to fix
                      libraries/browser-tracker-core/src/tracker/index.ts on lines 1131..1133

                      Duplicated Code

                      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                      Tuning

                      This issue has a mass of 46.

                      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                      Refactorings

                      Further Reading

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