import toTitleCase from './toTitleCase';

/**
 * Creates a slug from input parameters by converting the name and appending it with an ID.
 * The slug is generated by removing special characters, converting to lowercase, and joining with hyphens.
 *
 * @param {string} prefix - The prefix to be added to the generated slug.
 * @param {string} name - The name used to generate the slug.
 * @param {number} id - The ID to be appended to the slug.
 * @returns {string} - The generated slug with the prefix, name, and ID.
 */
const createSlug = (prefix, name, id, withHost = false) => {
  name ||= '';
  let slug =
    name
      ?.trim()
      .replace(new RegExp(/[^A-Za-z0-9]/, 'g'), '-')
      .toLowerCase() +
    '-' +
    id;
  let splitSlug = slug.split('-');
  let filterSlugFromEmptyChar = splitSlug.filter((x) => x != '');
  slug = prefix + filterSlugFromEmptyChar.join('-');
  if (withHost) slug = process.env.NEXT_PUBLIC_SELF_HOST + slug;
  return slug;
};

/**
 * Extracts the ID from a slug.
 * The ID is retrieved from the last segment of the slug, separated by hyphens.
 *
 * @param {string} slug - The slug from which to extract the ID.
 * @returns {string} - The extracted ID from the slug.
 */
const getIdFromSlug = (slug) => {
  let id = slug.split('-');
  return id[id.length - 1];
};

/**
 * Extracts the name from a slug.
 * The name is retrieved from all segments of the slug, except for the last one, separated by hyphens.
 * The retrieved name is then converted to title case.
 *
 * @param {string} slug - The slug from which to extract the name.
 * @returns {string} - The extracted name from the slug in title case.
 */
const getNameFromSlug = (slug) => {
  let name = slug.split('-');
  name.pop();
  return toTitleCase(name.join(' '));
};

export { createSlug, getIdFromSlug, getNameFromSlug };