/*
 * Copyright 2020 Spotify AB
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { InputError, NotFoundError } from '@backstage/backend-common';
import {
  Entity,
  EntityRelationSpec,
  LocationSpec,
} from '@backstage/catalog-model';
import { CatalogProcessorResult } from './types';

export function notFoundError(
  atLocation: LocationSpec,
  message: string,
): CatalogProcessorResult {
  return {
    type: 'error',
    location: atLocation,
    error: new NotFoundError(message),
  };
}

export function inputError(
  atLocation: LocationSpec,
  message: string,
): CatalogProcessorResult {
  return {
    type: 'error',
    location: atLocation,
    error: new InputError(message),
  };
}

export function generalError(
  atLocation: LocationSpec,
  message: string,
): CatalogProcessorResult {
  return { type: 'error', location: atLocation, error: new Error(message) };
}

export function location(
  newLocation: LocationSpec,
  optional: boolean,
): CatalogProcessorResult {
  return { type: 'location', location: newLocation, optional };
}

export function entity(
  atLocation: LocationSpec,
  newEntity: Entity,
): CatalogProcessorResult {
  return { type: 'entity', location: atLocation, entity: newEntity };
}

export function relation(spec: EntityRelationSpec): CatalogProcessorResult {
  return { type: 'relation', relation: spec };
}
