// Custom path join code to work both on node & browser

import { ManagedServiceId } from './types';

// Ref: https://stackoverflow.com/questions/29855098/is-there-a-built-in-javascript-function-similar-to-os-path-join
const joinPath = (...paths: string[]): string => {
  return paths
    .map((part, index) => {
      if (index === 0) {
        return part.trim().replace(/[\\/]*$/g, '');
      } else {
        return part.trim().replace(/(^[\\/]*|[\\/]*$)/g, '');
      }
    })
    .filter((x) => x.length)
    .join('/');
};

/**
 * Concatenates a list of paths to a base URL
 * @param base Base URL string
 * @param paths List of paths to concatenate
 * @returns Concatenated URL object
 */
export const concatUrl = (base: string, ...paths: string[]): URL => {
  const url = new URL(base);
  const newPath = joinPath(...[url.pathname, ...paths]);

  return new URL(newPath, url.origin);
};

const getNaiveServiceNameFromServiceId = (serviceId: string): string => {
  return serviceId
    .split('-')
    .map((word) => {
      return word.toUpperCase();
    })
    .join(' ');
};

export const getServiceNameFromServiceId = (
  serviceId: ManagedServiceId | string,
  isManaged: boolean | undefined,
): string => {
  if (isManaged) {
    const managedServiceId = serviceId as ManagedServiceId;
    switch (managedServiceId) {
      case ManagedServiceId.ID_SERVICE:
        return 'Identity Service';
      case ManagedServiceId.MICRO_FRONTEND_SERVICE:
        return 'Microfrontend Service';
      case ManagedServiceId.PORTAL_SERVICE:
        return 'Management System Service';
      case ManagedServiceId.AXAUTH_SERVICE:
        return 'AxAuth Service';
      case ManagedServiceId.VIDEO_SERVICE:
        return 'Video Service';
      case ManagedServiceId.IMAGE_SERVICE:
        return 'Image Service';
      case ManagedServiceId.USER_SERVICE:
        return 'User Service';
      case ManagedServiceId.PERSONALIZATION_SERVICE:
        return 'Personalization Service';
      case ManagedServiceId.HOSTING_SERVICE:
        return 'Hosting Service';
      case ManagedServiceId.LOCALIZATION_SERVICE:
        return 'Localization Service';
      case ManagedServiceId.KEY_SERVICE:
        return 'Key Service';
      case ManagedServiceId.ENTITLEMENT_SERVICE:
        return 'Entitlement Service';
      case ManagedServiceId.DRM_SERVICE:
        return 'DRM Service';
      default: {
        // This block would never execute in runtime, and used as a build-time exhaustive switch-case check for the `ManagedServiceId` Type.
        // eslint-disable-next-line @typescript-eslint/no-unused-vars
        const unhandledManagedServiceId: never = managedServiceId;
        // In case of an unhandled ManagedServiceId, we return a fallback value instead of throwing an error.
        // eslint-disable-next-line no-console
        console.warn(
          `Warning: Unhandled ManagedServiceId "${managedServiceId}". Returning a fallback service name.`,
        );
        return getNaiveServiceNameFromServiceId(serviceId);
      }
    }
  } else {
    return getNaiveServiceNameFromServiceId(serviceId);
  }
};