app.js

import express from 'express';
import cookieParser from 'cookie-parser';
import cors from 'cors';
import { createRecord, dbConnection, findOneRecord } from './utils/handleDB.js';
import { middlewareErrorHandler, middlewareUnknownRoute } from './utils/handleErrors.js';

/**
 * establish DB connection
 */
const db = dbConnection();

// create superadmin on first run
const isSuperAdminAvailable = await findOneRecord(User, { email: process.env.SUPERADMIN_EMAIL });
if (!isSuperAdminAvailable) {
  const newSuperAdmin = await createRecord(User, {
    name: 'RAGChat Admin',
    username: 'superAdmin',
    email: process.env.SUPERADMIN_EMAIL,
    password: process.env.SUPERADMIN_PASSWORD,
    role: 4,
    verified: true
  });
  console.log(chalk.green('created superAdmin'));
}

/**
 * configure app
 */
// create the app, which is an express instance
const app = express();
app.use(express.static('uploads'));

// define where to run the app at
// allow app to accept json as a body inside of requests
app.use(express.json());
// enable use cookie-parser
app.use(cookieParser());

// define frontUrl
global.frontURL = process.env.FRONTEND_URL.split(',')[0];
// turn origins into array
const origins = process.env.FRONTEND_URL.split(',');
// turn array items into regex
for (let i = 0; i < origins.length; i++) {
  origins[i] = new RegExp(origins[i]);
}
// combine all cors options into object
const corsOptions = {
  origin: origins,
  optionsSuccessStatus: 200, // some legacy browsers (IE11, various SmartTVs) choke on 20
  credentials: true,
};
// make use of cors options
app.use(cors(corsOptions));


/**
 * import routes
*/
import usersRouter from './routes/users.js';
import authRouter from './routes/auth.js';
import aiRouter from './routes/ai.js';
import embeddingsRouter from './routes/embeddings.js';
import User from './models/User.js';
import chalk from 'chalk';


/**
 * use routes
*/
app.use('/users', usersRouter);
app.use('/auth', authRouter);
app.use('/ai', aiRouter);
app.use('/embeddings', embeddingsRouter);
// 404
app.all('*', middlewareUnknownRoute);
// global error middleware
app.use(middlewareErrorHandler);

export default app;