function updateFilterDescription()

in index.js [1014:1041]

• 21 lines of code
• 6 McCabe index (conditional complexity)

function updateFilterDescription (selectedStateNames) {
  var FILTER_DESCRIPTION_LIMIT = 2
  var stateCount = selectedStateNames.length

  // Limit the length of filter text on small screens.
  if (window.matchMedia('(max-width: 414px)').matches) {
    FILTER_DESCRIPTION_LIMIT = 1
  }

  var container = document.querySelector('.toggle-filter-panel')

  // modify the state names to clump together Implemented with version names
  var swiftVersionStates = selectedStateNames.filter(function (state) { return state.match(/swift/i) })

  if (swiftVersionStates.length > 0 && swiftVersionStates.length <= FILTER_DESCRIPTION_LIMIT) {
    selectedStateNames = selectedStateNames.filter(function (state) { return !state.match(/swift|implemented/i) })
      .concat('Implemented (' + swiftVersionStates.join(', ') + ')')
  }

  if (selectedStateNames.length > FILTER_DESCRIPTION_LIMIT) {
    container.innerText = stateCount + ' Filters'
  } else if (selectedStateNames.length === 0) {
    container.innerText = 'All Statuses'
  } else {
    selectedStateNames = selectedStateNames.map(cleanNumberFromState)
    container.innerText = selectedStateNames.join(' or ')
  }
}