export function mergeFilterDomainStep()

in src/utils/filter-utils.js [987:1031]

• 38 lines of code
• 15 McCabe index (conditional complexity)

export function mergeFilterDomainStep(filter, filterProps) {
  if (!filter) {
    return null;
  }

  if (!filterProps) {
    return filter;
  }

  if ((filter.fieldType && filter.fieldType !== filterProps.fieldType) || !filterProps.domain) {
    return filter;
  }

  const combinedDomain = !filter.domain
    ? filterProps.domain
    : [...(filter.domain || []), ...(filterProps.domain || [])].sort((a, b) => a - b);

  const newFilter = {
    ...filter,
    ...filterProps,
    domain: [combinedDomain[0], combinedDomain[combinedDomain.length - 1]]
  };

  switch (filterProps.fieldType) {
    case ALL_FIELD_TYPES.string:
    case ALL_FIELD_TYPES.date:
      return {
        ...newFilter,
        domain: unique(combinedDomain).sort()
      };

    case ALL_FIELD_TYPES.timestamp:
      // @ts-ignore
      const step = filter.step < filterProps.step ? filter.step : filterProps.step;

      return {
        ...newFilter,
        step
      };
    case ALL_FIELD_TYPES.real:
    case ALL_FIELD_TYPES.integer:
    default:
      return newFilter;
  }
}