Function deriveIndividualDeletables has a Cognitive Complexity of 36 (exceeds 5 allowed). Consider refactoring.

Open

function deriveIndividualDeletables(record) {
  const todoList = record.fields.map(f => fieldToString(f));
  //const finishedRecord = encodingLevelIsBetterThanPrepublication(getEncodingLevel(record));

  const deletableStringsArray = processTodoList(todoList);

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Function deriveIndividualDeletables has 65 lines of code (exceeds 25 allowed). Consider refactoring.

Open

function deriveIndividualDeletables(record) {
  const todoList = record.fields.map(f => fieldToString(f));
  //const finishedRecord = encodingLevelIsBetterThanPrepublication(getEncodingLevel(record));

  const deletableStringsArray = processTodoList(todoList);

File removeInferiorDataFields.js has 266 lines of code (exceeds 250 allowed). Consider refactoring.

Open

import createDebugLogger from 'debug';
import {fieldToChain, sameField} from './removeDuplicateDataFields';
import {fieldGetOccurrenceNumberPairs, fieldHasValidSubfield6, fieldSevenToOneOccurrenceNumber, fieldsToNormalizedString} from './subfield6Utils';
import {fieldHasSubfield, fieldsToString, fieldToString, nvdebug, uniqArray} from './utils';
import {fieldHasValidSubfield8} from './subfield8Utils';

Function processTodoList has 50 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  function processTodoList(thingsToDo, deletables = []) {
    const [currString, ...stillToDo] = thingsToDo;

    if (currString === undefined) {
      return deletables;

Function removeInferiorChains has a Cognitive Complexity of 14 (exceeds 5 allowed). Consider refactoring.

Open

export function removeInferiorChains(record, fix = true) {
  const fields = record.fields.filter(f => isRelevantChain6(f, record));
  //nvdebug(`WP2.0: GOT ${fields.length} chain(s)`);

  const deletableChainsAsKeys = deriveInferiorChains(fields, record);

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Function removeInferiorChains has 43 lines of code (exceeds 25 allowed). Consider refactoring.

Open

export function removeInferiorChains(record, fix = true) {
  const fields = record.fields.filter(f => isRelevantChain6(f, record));
  //nvdebug(`WP2.0: GOT ${fields.length} chain(s)`);

  const deletableChainsAsKeys = deriveInferiorChains(fields, record);

Function deriveInferiorChains has 30 lines of code (exceeds 25 allowed). Consider refactoring.

Open

function deriveInferiorChains(fields, record) {
  //nvdebug(`======= GOT ${fields.length} FIELDS TO CHAINIFY`);
  const hash = {};

  fields.forEach(f => fieldToChainToDeletables(f));

Function deriveIndividualNormalizedDeletables has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.

Open

function deriveIndividualNormalizedDeletables(record) { //  MET-461:
  const encodingLevel = getEncodingLevel(record);
  const recordIsFinished = encodingLevelIsBetterThanPrepublication(encodingLevel);
  const met495 = encodingLevel === '2' && record.fields.some(f => f.tag === '500' && fieldRefersToKoneellisestiTuotettuTietue(f));
  if (!recordIsFinished || met495) {

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Avoid too many return statements within this function.

Open

        return processTodoList([...stillToDo, ...moreToDo], [...deletables, tmp, tmp2]);

Avoid too many return statements within this function.

Open

      return processTodoList([...stillToDo, ...moreToDo], [...deletables, tmp]);

Avoid too many return statements within this function.

Open

    return processTodoList([...stillToDo, ...moreToDo], newDeletables);

Avoid too many return statements within this function.

Open

        return processTodoList([tmp, ...stillToDo, ...moreToDo], [...deletables, tmp]);

Avoid too many return statements within this function.

Open

      return processTodoList([...stillToDo, ...moreToDo], newDeletables);

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

Open

function deriveInferiorChains(fields, record) {
  //nvdebug(`======= GOT ${fields.length} FIELDS TO CHAINIFY`);
  const hash = {};

  fields.forEach(f => fieldToChainToDeletables(f));

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