/**
 * @typedef {import('micromark-util-types').Construct} Construct
 * @typedef {import('micromark-util-types').Tokenizer} Tokenizer
 * @typedef {import('micromark-util-types').State} State
 */
import {labelEnd} from './label-end.js'
/** @type {Construct} */

export const labelStartLink = {
  name: 'labelStartLink',
  tokenize: tokenizeLabelStartLink,
  resolveAll: labelEnd.resolveAll
}
/** @type {Tokenizer} */

function tokenizeLabelStartLink(effects, ok, nok) {
  const self = this
  return start
  /** @type {State} */

  function start(code) {
    effects.enter('labelLink')
    effects.enter('labelMarker')
    effects.consume(code)
    effects.exit('labelMarker')
    effects.exit('labelLink')
    return after
  }
  /** @type {State} */

  function after(code) {
    /* To do: remove in the future once we’ve switched from
     * `micromark-extension-footnote` to `micromark-extension-gfm-footnote`,
     * which doesn’t need this */

    /* Hidden footnotes hook. */

    /* c8 ignore next 3 */
    return code === 94 && '_hiddenFootnoteSupport' in self.parser.constructs
      ? nok(code)
      : ok(code)
  }
}