import { types } from "assets/types.js";

class loading_screen {
    #cover;
    static #self;

    constructor(cover = undefined) {
        if (loading_screen.#self instanceof loading_screen) {
            return loading_screen.#self;
        }
        
        loading_screen.#self = this;

        types.check_html_element(cover);

        this.#cover = cover;
        this.#prepare();
    }

    get cover() {
        return this.#cover;
    }

    #prepare() {
        this.cover.style.transition = "opacity 0.5s ease-in-out";
    }

    show() {
        this.cover.style.display = "";
        this.cover.style.opacity = "1";
    }

    hide() {
        this.cover.style.opacity = "0";

        setTimeout(() => { 
            this.cover.style.display = "none";
        }, 500);
    }
}

export { loading_screen };