import { Signale } from 'signale';
import ConfigHandler from './assets/configHandler';
import express, { NextFunction, Request, Response } from 'express';
import fileUpload from 'express-fileupload';
import { PrismaClient } from '@prisma/client';
import * as eta from 'eta';
import bodyParser from 'body-parser';

// Sentry
import * as Sentry from '@sentry/node';
import * as Tracing from '@sentry/tracing';

import routes from './routes/index.js';

// Get app directory.
export const __path = process.argv[1];

const logger_settings = {
	disabled: false,
	logLevel: 'info',
	scope: 'Core',
	stream: process.stdout,
	displayFilename: true
};

const coreLogger = new Signale(logger_settings);
export const log = {
	core: coreLogger,
	db: coreLogger.scope('DB'),
	web: coreLogger.scope('WEB')
};

// Create a new config instance.
export const config = new ConfigHandler(__path + '/config.json', {
	db_connection_string: 'mysql://USER:PASSWORD@HOST:3306/DATABASE',
	http_listen_address: '127.0.0.1',
	http_port: 3000,
	sentry_dsn: 'https://ID@sentry.example.com/PROJECTID',
	debug: false
});

export const prisma = new PrismaClient({
	datasources: {
		db: {
			url: config.global.db_connection_string
		}
	}
});

export const app = express();
Sentry.init({
	dsn: config.global.sentry_dsn,
	integrations: [
		// enable HTTP calls tracing
		new Sentry.Integrations.Http({ tracing: true }),
		// enable Express.js middleware tracing
		new Tracing.Integrations.Express({ app })
	],

	// Set tracesSampleRate to 1.0 to capture 100%
	// of transactions for performance monitoring.
	// We recommend adjusting this value in production
	tracesSampleRate: 1.0
});

// RequestHandler creates a separate execution context using domains, so that every
// transaction/span/breadcrumb is attached to its own Hub instance
app.use(Sentry.Handlers.requestHandler());
// TracingHandler creates a trace for every incoming request
app.use(Sentry.Handlers.tracingHandler());

app.set('x-powered-by', false);
app.engine('html', eta.renderFile);

// app.use(cors());
app.use(bodyParser.urlencoded({ extended: false }));

// Using bodyParser to parse JSON bodies into JS objects
app.use(bodyParser.json());

app.use(fileUpload());
app.use(express.static(__path + '/static'));

app.use(routes);

// The error handler must be before any other error middleware and after all controllers
app.use(Sentry.Handlers.errorHandler());

// Optional fallthrough error handler
app.use(function onError(err: Error, req: Request, res: Response, next: NextFunction) {
	// The error id is attached to `res.sentry` to be returned
	// and optionally displayed to the user for support.
	res.statusCode = 500;
	// @ts-ignore
	res.end(res.sentry + '\n');
});

app.listen(config.global.http_port, config.global.http_listen_address, () => {
	log.web.info(`Listening at http://${config.global.http_listen_address}:${config.global.http_port}`);
});