app/lib/firebase-server-initialization.ts

/**
 * Copyright 2023 Google LLC
 *
 * 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 {initializeApp, getApps, App} from 'firebase-admin/app';
import {firebaseConfig} from '@/app/lib/firebase-config';
const {getFirestore} = require('firebase-admin/firestore');

export let app: App;

if (getApps().length < 1) {
  app = initializeApp(firebaseConfig);
}
export const db = getFirestore();

export const gamesRef = db.collection('games');
export const questionsRef = db.collection('questions');