import { ClassNames } from './interfaces/class-names';
import { Options } from './interfaces/options';
import { sanitise, sortByAlpha } from './lib/utils';
import { EventChoice } from './interfaces';

export const DEFAULT_CLASSNAMES: ClassNames = {
  containerOuter: ['choices'],
  containerInner: ['choices__inner'],
  input: ['choices__input'],
  inputCloned: ['choices__input--cloned'],
  list: ['choices__list'],
  listItems: ['choices__list--multiple'],
  listSingle: ['choices__list--single'],
  listDropdown: ['choices__list--dropdown'],
  item: ['choices__item'],
  itemSelectable: ['choices__item--selectable'],
  itemDisabled: ['choices__item--disabled'],
  itemChoice: ['choices__item--choice'],
  description: ['choices__description'],
  placeholder: ['choices__placeholder'],
  group: ['choices__group'],
  groupHeading: ['choices__heading'],
  button: ['choices__button'],
  activeState: ['is-active'],
  focusState: ['is-focused'],
  openState: ['is-open'],
  disabledState: ['is-disabled'],
  highlightedState: ['is-highlighted'],
  selectedState: ['is-selected'],
  flippedState: ['is-flipped'],
  loadingState: ['is-loading'],
  invalidState: ['is-invalid'],
  notice: ['choices__notice'],
  addChoice: ['choices__item--selectable', 'add-choice'],
  noResults: ['has-no-results'],
  noChoices: ['has-no-choices'],
} as const;

export const DEFAULT_CONFIG: Options = {
  items: [],
  choices: [],
  silent: false,
  renderChoiceLimit: -1,
  maxItemCount: -1,
  closeDropdownOnSelect: 'auto',
  singleModeForMultiSelect: false,
  addChoices: false,
  addItems: true,
  addItemFilter: (value: string): boolean => !!value && value !== '',
  removeItems: true,
  removeItemButton: false,
  removeItemButtonAlignLeft: false,
  editItems: false,
  allowHTML: false,
  allowHtmlUserInput: false,
  duplicateItemsAllowed: true,
  delimiter: ',',
  paste: true,
  searchEnabled: true,
  searchChoices: true,
  searchDisabledChoices: false,
  searchFloor: 1,
  searchResultLimit: 4,
  searchFields: ['label', 'value'],
  position: 'auto',
  resetScrollPosition: true,
  shouldSort: true,
  shouldSortItems: false,
  sorter: sortByAlpha,
  shadowRoot: null,
  placeholder: true,
  placeholderValue: null,
  searchPlaceholderValue: null,
  prependValue: null,
  appendValue: null,
  renderSelectedChoices: 'auto',
  searchRenderSelectedChoices: true,
  loadingText: 'Loading...',
  noResultsText: 'No results found',
  noChoicesText: 'No choices to choose from',
  itemSelectText: 'Press to select',
  uniqueItemText: 'Only unique values can be added',
  customAddItemText: 'Only values matching specific conditions can be added',
  addItemText: (value: string) => `Press Enter to add <b>"${value}"</b>`,
  removeItemIconText: (): string => `Remove item`,
  removeItemLabelText: (value: string, _valueRaw: string, i?: EventChoice): string =>
    `Remove item: ${i ? sanitise<string>(i.label) : value}`,
  maxItemText: (maxItemCount: number): string => `Only ${maxItemCount} values can be added`,
  valueComparer: (value1: string, value2: string): boolean => value1 === value2,
  fuseOptions: {
    includeScore: true,
  },
  labelId: '',
  callbackOnInit: null,
  callbackOnCreateTemplates: null,
  classNames: DEFAULT_CLASSNAMES,
  appendGroupInSearch: false,
} as const;