glitch-soc/mastodon

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app/javascript/flavours/glitch/components/autosuggest_textarea.jsx

Summary

Maintainability
F
1 wk
Test Coverage

Function AutosuggestTextarea has a Cognitive Complexity of 38 (exceeds 5 allowed). Consider refactoring.
Open

const AutosuggestTextarea = forwardRef(({
  value,
  suggestions,
  disabled,
  placeholder,
Severity: Minor
Found in app/javascript/flavours/glitch/components/autosuggest_textarea.jsx - About 5 hrs 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 handleKeyDown has 41 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  const handleKeyDown = useCallback((e) => {
    if (disabled) {
      e.preventDefault();
      return;
    }
Severity: Minor
Found in app/javascript/flavours/glitch/components/autosuggest_textarea.jsx - About 1 hr to fix

    Function textAtCursorMatchesToken has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
    Open

    const textAtCursorMatchesToken = (str, caretPosition) => {
      let word;
    
      let left  = str.slice(0, caretPosition).search(/\S+$/);
      let right = str.slice(caretPosition).search(/\s/);
    Severity: Minor
    Found in app/javascript/flavours/glitch/components/autosuggest_textarea.jsx - About 25 mins 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

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

    const AutosuggestTextarea = forwardRef(({
      value,
      suggestions,
      disabled,
      placeholder,
    app/javascript/mastodon/components/autosuggest_textarea.jsx on lines 41..218

    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 1477.

    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

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

    const textAtCursorMatchesToken = (str, caretPosition) => {
      let word;
    
      let left  = str.slice(0, caretPosition).search(/\S+$/);
      let right = str.slice(caretPosition).search(/\s/);
    app/javascript/mastodon/components/autosuggest_textarea.jsx on lines 16..39

    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 232.

    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

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

    AutosuggestTextarea.propTypes = {
      value: PropTypes.string,
      suggestions: ImmutablePropTypes.list,
      disabled: PropTypes.bool,
      placeholder: PropTypes.string,
    app/javascript/mastodon/components/autosuggest_textarea.jsx on lines 220..235

    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 158.

    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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