/*
 * Copyright (C) 2019, 2020 StApps
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
import {SCSearchQuery, SCSearchResponse, SCThings, SCUuid} from '@openstapps/core';
import {Express} from 'express';
import {configureApp} from '../src/app';
import express from 'express';
import http from 'http';
import {Bulk, BulkStorage} from '../src/storage/bulk-storage';
import {Database} from '../src/storage/database';
import getPort from 'get-port';

/**
 * Adds routers and configures an (express) app
 *
 */
export async function startApp(): Promise<Express> {
  const app = express();

  await configureApp(app);

  const server = http.createServer(app);

  // get a random free port
  const port = await getPort();
  server.listen(port);

  server.on('error', err => {
    throw err;
  });

  return new Promise(resolve => server.on('listening', () => {
      app.set(
        'bulk',
        bulkStorage,
    );
    resolve(app);
  }));
}

/**
 * An elasticsearch mock
 */
export class ElasticsearchMock implements Database {
  // @ts-ignore
  private bulk: Bulk | undefined;
  private storageMock = new Map<string, SCThings>();

  constructor() {
    // Nothing to do here
  }

  bulkCreated(bulk: Bulk): Promise<void> {
    this.bulk = bulk;
    return Promise.resolve(undefined);
  }

  bulkExpired(_bulk: Bulk): Promise<void> {
    return Promise.resolve(undefined);
  }

  bulkUpdated(_bulk: Bulk): Promise<void> {
    return Promise.resolve(undefined);
  }

  get(uid: SCUuid): Promise<SCThings> {
    // @ts-ignore
    return Promise.resolve(this.storageMock.get(uid));
  }

  init(): Promise<void> {
    return Promise.resolve();
  }

  post(_thing: SCThings, _bulk: Bulk): Promise<void> {
    return Promise.resolve();
  }

  put(thing: SCThings): Promise<void> {
    this.storageMock.set(thing.uid, thing);
    return Promise.resolve();
  }

  search(_params: SCSearchQuery): Promise<SCSearchResponse> {
    return Promise.resolve({data: [], facets: [], pagination: {count: 0, offset: 0, total: 0}, stats: {time: 0}});
  }
}

export const bulkStorage = new BulkStorage(new ElasticsearchMock());

export class FooError extends Error {
}

export const DEFAULT_TEST_TIMEOUT = 10000;