const { Telidon } = require("telidon");
const fs = require("fs");

const curdir = process.cwd();

function invalidate(file) {
    if(require.cache[require.resolve(file)]) {
        require.cache[require.resolve(file)].children.forEach(c=>{
            if(c.filename.startsWith(curdir))
                invalidate(c.filename);
        });
        delete require.cache[require.resolve(file)];
    }
}

function watch(file) {
    return fs.watch(file, { recursive: true }, (eventType, filename) => {
        if(eventType == 'change') invalidate(file+filename);
    });
}

watch("./helpers/");
watch("./views/");

var server = new Telidon({}, c=>{
    var current = null;
    var currentPage = "./views/mainmenu.js";
    var prevPage = null;

    c.debug = true;
    c.options.multiLength = 5;
    c.init();

    c.on("error", (err) => {
        console.error(`Caught exception: ${err.stack}\n`)
        c.cancel();
        if(current != null)
            current.leave();
        current = null;
        c.uninit();
        c.write("\r\n\x1b[44m  ÉCRAN DE LA MORT QUI TUE  \x1b[0m\r\n\r\n");
        c.write("Le serveur a rencontré une erreur fatale :(\r\n\r\n");
        c.write("Vous pouvez nous aider en rapportant l'erreur suivante à nos admins:\r\n\r\n");
        c.write((err.stack||"").split("\n").flatMap(a=>a.match(/.{1,80}/g)||[]).join("\r\n"));
        c.write("\r\n\r\nVous pouvez maintenant vous déconnecter et vous reconnecter de nouveau.\r\nBonne journée!\r\n");
    });

    var goto = (page, save = true)=>{
        if(save) prevPage = currentPage;
        if(!page) page = currentPage;
        currentPage = page;
        if(current != null)
        {
            c.cancel();
            current.leave();
        }
        var pg = require(page);
        current = new pg(c);
        current.goto = goto;
        current.gotoPrev = gotoPrev;
    }
    var gotoPrev = () => {
        if(prevPage) goto(prevPage);
    }
    goto();
    c.on("data", d=>{
        if(current != null)
            current.data(d)
    });
});

server.listen(8354);