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VandyHacks/vaken

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plugins/nfc/components/Nfc.tsx

Summary

Maintainability
B
6 hrs
Test Coverage

Function Nfc has 58 lines of code (exceeds 25 allowed). Consider refactoring.
Open

export const Nfc: FunctionComponent = (): JSX.Element => {
    const hackers = useHackersQuery();
    const hackersLoading = hackers.loading;
    const hackersError = hackers.error;
    const hackersData = hackers.data;
Severity: Major
Found in plugins/nfc/components/Nfc.tsx - About 2 hrs to fix

Function Nfc has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.
Open

export const Nfc: FunctionComponent = (): JSX.Element => {
    const hackers = useHackersQuery();
    const hackersLoading = hackers.loading;
    const hackersError = hackers.error;
    const hackersData = hackers.data;
Severity: Minor
Found in plugins/nfc/components/Nfc.tsx - About 1 hr 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

Avoid too many return statements within this function.
Open

    return (
        <FloatingPopup borderRadius="1rem" height="100%" backgroundOpacity="1" padding="1.5rem">
            <TableContext.Provider value={{ state: tableState, update: updateTableState }}>
                <NfcTable hackersData={hackersData.hackers} eventsData={eventsCurrent} />
            </TableContext.Provider>
Severity: Major
Found in plugins/nfc/components/Nfc.tsx - About 30 mins to fix

Avoid too many return statements within this function.
Open

        return <p>You dont have permissions to scan NFCs</p>;
Severity: Major
Found in plugins/nfc/components/Nfc.tsx - About 30 mins to fix

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

    const eventsCurrent = eventsData.events.filter(e => {
        const TIME_BUFFER = 60; // 60 minutes
        const delta = (now - e.startTimestamp) / (1000 * 60); // Time diff in minutes
        return delta >= -1 * TIME_BUFFER && delta <= e.duration + TIME_BUFFER;
    });
Severity: Major
Found in plugins/nfc/components/Nfc.tsx and 1 other location - About 2 hrs to fix
src/client/routes/nfc/Nfc.tsx on lines 33..37

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 75.

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

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