const { getArgs } = require("./utils");
const startFrontendDevServer = require("./server-frontend-dev");
const startBackendServer = require("./server-backend");

const SERVER_MODES = {
    PRODUCTION: 1,
    DEVELOPMENT: 2
}

const args = getArgs();

if ( typeof args.mode === "undefined") {
    // default to production mode
    args.mode = "production";
}

if (args.mode !== "production" && args.mode !== "development") {
    throw new Error("--mode can only be 'development' or 'production'")
}

const server_mode = args.mode === "production" ? SERVER_MODES.PRODUCTION : SERVER_MODES.DEVELOPMENT;

if (server_mode === SERVER_MODES.DEVELOPMENT){
    console.info("Starting server in development mode.");
    startFrontendDevServer(8080);
    // this time, it's the frontend server that is on port 8080
    // requests for the backend will be proxied to prevent cross origins errors
    startBackendServer(3000);
} else {
    console.info("Starting server in production mode.");
    startBackendServer(8080);
}