import { sanitise, sortByAlpha } from './lib/utils';

/**
 * @typedef {import('../../types/index').Choices.ClassNames} ClassNames
 * @typedef {import('../../types/index').Choices.Options} Options
 */

/** @type {ClassNames} */
export const DEFAULT_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',
  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',
  flippedState: 'is-flipped',
  loadingState: 'is-loading',
  noResults: 'has-no-results',
  noChoices: 'has-no-choices',
};

/** @type {Options} */
export const DEFAULT_CONFIG = {
  items: [],
  choices: [],
  silent: false,
  renderChoiceLimit: -1,
  maxItemCount: -1,
  addItems: true,
  addItemFilter: null,
  removeItems: true,
  removeItemButton: false,
  editItems: false,
  duplicateItemsAllowed: true,
  delimiter: ',',
  paste: true,
  searchEnabled: true,
  searchChoices: true,
  searchFloor: 1,
  searchResultLimit: 4,
  searchFields: ['label', 'value'],
  position: 'auto',
  resetScrollPosition: true,
  shouldSort: true,
  shouldSortItems: false,
  sorter: sortByAlpha,
  placeholder: true,
  placeholderValue: null,
  searchPlaceholderValue: null,
  prependValue: null,
  appendValue: null,
  renderSelectedChoices: 'auto',
  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 => `Press Enter to add <b>"${sanitise(value)}"</b>`,
  maxItemText: maxItemCount => `Only ${maxItemCount} values can be added`,
  valueComparer: (value1, value2) => value1 === value2,
  fuseOptions: {
    includeScore: true,
  },
  callbackOnInit: null,
  callbackOnCreateTemplates: null,
  classNames: DEFAULT_CLASSNAMES,
};

export const EVENTS = {
  showDropdown: 'showDropdown',
  hideDropdown: 'hideDropdown',
  change: 'change',
  choice: 'choice',
  search: 'search',
  addItem: 'addItem',
  removeItem: 'removeItem',
  highlightItem: 'highlightItem',
  highlightChoice: 'highlightChoice',
};

export const ACTION_TYPES = {
  ADD_CHOICE: 'ADD_CHOICE',
  FILTER_CHOICES: 'FILTER_CHOICES',
  ACTIVATE_CHOICES: 'ACTIVATE_CHOICES',
  CLEAR_CHOICES: 'CLEAR_CHOICES',
  ADD_GROUP: 'ADD_GROUP',
  ADD_ITEM: 'ADD_ITEM',
  REMOVE_ITEM: 'REMOVE_ITEM',
  HIGHLIGHT_ITEM: 'HIGHLIGHT_ITEM',
  CLEAR_ALL: 'CLEAR_ALL',
};

export const KEY_CODES = {
  BACK_KEY: 46,
  DELETE_KEY: 8,
  ENTER_KEY: 13,
  A_KEY: 65,
  ESC_KEY: 27,
  UP_KEY: 38,
  DOWN_KEY: 40,
  PAGE_UP_KEY: 33,
  PAGE_DOWN_KEY: 34,
};

export const TEXT_TYPE = 'text';
export const SELECT_ONE_TYPE = 'select-one';
export const SELECT_MULTIPLE_TYPE = 'select-multiple';

export const SCROLLING_SPEED = 4;