import { randomUUID } from 'crypto';
import { feathers } from '@feathersjs/feathers';
import express, { rest, json, urlencoded, cors, serveStatic, notFound, errorHandler } from '@feathersjs/express';
import configuration from '@feathersjs/configuration';
import socketio from '@feathersjs/socketio';
import session from 'express-session';
import cookieParser from 'cookie-parser';
import RedisStore from 'connect-redis';
import { createClient } from 'redis';
import config from 'config';
import type { Application } from './declarations';
import { logger } from './logger';
import { logError } from './hooks/log-error';
import { services } from './services/index';
import { channels } from './channels';
import { Env, getEnv } from './helpers/get-env';

const app: Application = express(feathers());
let sessionStore;

// Load app configuration
app.configure(configuration());
app.use(cors());
app.use(
    json({
        limit: '20mb',
    })
);

app.use(cookieParser());

if (getEnv() === Env.prod) {
    const redisClient = createClient({
        url: config.get('redis.url'),
    });

    sessionStore = new RedisStore({
        prefix: 'walias:',
        client: redisClient,
    });

    redisClient.connect().catch(console.error);
}

app.use(
    session({
        store: sessionStore,
        secret: config.get('sessionSecret') || randomUUID(),
        resave: false,
        saveUninitialized: false,
        cookie: { secure: false },
    })
);

// Propagate session to request.params in feathers services
app.use(function (req, _res, next) {
    req.feathers = {
        ...req.feathers,
        session: req.session,
    };
    next();
});

app.use(urlencoded({ extended: true }));
// Host the public folder
app.use('/', serveStatic(app.get('public')));

// Configure services and real-time functionality
app.configure(rest());
app.configure(
    socketio({
        cors: {
            origin: app.get('origins'),
        },
    })
);
app.configure(services);
app.configure(channels);

// Configure a middleware for 404s and the error handler
app.use(notFound());
app.use(errorHandler({ logger }));

// Register hooks that run on all service methods
app.hooks({
    around: {
        all: [logError],
    },
    before: {},
    after: {},
    error: {},
});
// Register application setup and teardown hooks here
app.hooks({
    setup: [],
    teardown: [],
});

export { app };