/**
 * Internal dependencies
 */

import { create } from './create';
import { normaliseFormats } from './normalise-formats';

/** @typedef {import('./types').RichTextValue} RichTextValue */

/**
 * Combine an array of Rich Text values into one, optionally separated by
 * `separator`, which can be a Rich Text value, HTML string, or plain text
 * string. This is similar to `Array.prototype.join`.
 *
 * @param {Array<RichTextValue>} values      An array of values to join.
 * @param {string|RichTextValue} [separator] Separator string or value.
 *
 * @return {RichTextValue} A new combined value.
 */
export function join(values, separator = '') {
  if (typeof separator === 'string') {
    separator = create({
      text: separator
    });
  }
  return normaliseFormats(values.reduce((accumlator, {
    formats,
    replacements,
    text
  }) => ({
    formats: accumlator.formats.concat(separator.formats, formats),
    replacements: accumlator.replacements.concat(separator.replacements, replacements),
    text: accumlator.text + separator.text + text
  })));
}
//# sourceMappingURL=join.js.map