// Server for frontend (Sveltekit build)

import { handler } from './build/handler.js';
import express from 'express';

const port = process.env.PORT || 3000;

const app = express();

app.use(handler);

app.listen(port, '::', () => {
    console.log(`Server listening on [::]:${port}`);
});

// Server for nodejs

const port = process.env.PORT || 3000;
app.listen(port, '::', () => {
    logger.info(`Server listening on [::]${port}`);
});

BACKEND_DOMAIN="${{backend.RAILWAY_PRIVATE_DOMAIN}}"
BACKEND_PORT="${{backend.PORT}}"
FRONTEND_DOMAIN="${{frontend.RAILWAY_PRIVATE_DOMAIN}}"
FRONTEND_PORT="${{frontend.PORT}}"
NODEJS_DOMAIN="${{nodejs.RAILWAY_PRIVATE_DOMAIN}}"
NODEJS_PORT="${{nodejs.PORT}}"

    // for fastapi
    handle /api/* {
		# proxy all requests for /api/* to the backend, configure this variable in the service settings
		reverse_proxy {
			# for private networking replicas are exposed as multiple dns results, use those dns results as the upstreams
			dynamic a {
				name {$BACKEND_DOMAIN}
				port {$BACKEND_PORT}
				refresh 1s
				dial_timeout 30s
				versions ipv4 ipv6
			}

			# configure load balancing settings
			import lb_settings

			# configure passive health checks
			import passive_health_checks

			# sets the Host header to the header to the dynamic name and port options
			header_up Host {upstream_hostport}
		}
	}
    
    // for nodejs
    handle /node/* {
		# proxy all requests for /node/* to the nodejs service, configure this variable in the service settings
		reverse_proxy {
			# for private networking replicas are exposed as multiple dns results, use those dns results as the upstreams
			dynamic a {
				name {$NODEJS_DOMAIN}
				port {$NODEJS_PORT}
				refresh 1s
				dial_timeout 30s
				versions ipv4 ipv6
			}

			# configure load balancing settings
			import lb_settings

			# configure passive health checks
			import passive_health_checks

			# sets the Host header to the header to the dynamic name and port options
			header_up Host {upstream_hostport}
		}
	}

# entrypoint.sh

set -euo pipefail

# for backwards compatibility, seperates host and port from url
export FRONTEND_DOMAIN=${FRONTEND_DOMAIN:-${FRONTEND_HOST%:*}}
export FRONTEND_PORT=${FRONTEND_PORT:-${FRONTEND_HOST##*:}}

export BACKEND_DOMAIN=${BACKEND_DOMAIN:-${BACKEND_HOST%:*}}
export BACKEND_PORT=${BACKEND_PORT:-${BACKEND_HOST##*:}}

export NODEJS_DOMAIN=${NODEJS_DOMAIN:-${NODEJS_HOST%:*}}
export NODEJS_PORT=${NODEJS_PORT:-${NODEJS_HOST##*:}}

# strip https:// or https:// from domain if necessary
FRONTEND_DOMAIN=${FRONTEND_DOMAIN##*://}
BACKEND_DOMAIN=${BACKEND_DOMAIN##*://}
NODEJS_DOMAIN=${NODEJS_DOMAIN##*://}

echo using frontend: ${FRONTEND_DOMAIN} with port: ${FRONTEND_PORT}
echo using backend: ${BACKEND_DOMAIN} with port: ${BACKEND_PORT}
echo using nodejs: ${NODEJS_DOMAIN} with port: ${NODEJS_PORT}

exec caddy run --config Caddyfile --adapter caddyfile 2>&1