isElementVisible()

in apis/latest/scripts/components/DocumentableList.js [136:185]

• 5 lines of code
• 2 McCabe index (conditional complexity)

  isElementVisible(elementData, filter) {
    return !areFiltersFromElementSelected()
      ? false
      : includesInputValue()

    function includesInputValue() {
      const lcValue = filter.value.toLowerCase()
      return elementData.name.toLowerCase().includes(lcValue) 
          || elementData.description.toLowerCase().includes(lcValue);
    }

    function areFiltersFromElementSelected() {
      /** @type { Dataset } */
      const dataset = Object.entries(elementData.ref.dataset)

      /** @type { Dataset } */
      const defaultFilters = Object.entries(Filter.defaultFilters)
        .filter(([key]) => !!filter.filters[getFilterKey(key)])

       /** @type { Dataset } */
      const defaultFiltersForMembersWithoutDataAttribute =
        defaultFilters.reduce((acc, [key, value]) => {
          const filterKey = getFilterKey(key)
          const shouldAddDefaultFilter = !dataset.some(([k]) => k === filterKey)
          return shouldAddDefaultFilter ? [...acc, [filterKey, value]] : acc
        }, [])

      /** @type { Dataset } */
      const datasetWithAppendedDefaultFilters = dataset
        .filter(([k]) => isFilterData(k))
        .map(([k, v]) => {
          const defaultFilter = defaultFilters.find(([defaultKey]) => defaultKey === k)
          return defaultFilter ? [k, `${v},${defaultFilter[1]}`] : [k, v]
        })

      const datasetWithDefaultFilters = [
        ...defaultFiltersForMembersWithoutDataAttribute,
        ...datasetWithAppendedDefaultFilters
      ]

      const isVisible = datasetWithDefaultFilters
        .every(([filterKey, value]) => {
          const filterGroup = filter.filters[filterKey]

          return value.split(",").some(v => filterGroup && filterGroup[v].selected)
        })

      return isVisible
    }
  }