import { dom_manager, type_manager } from "./functions.js";

class applet_builder {
    #target;
    #show;
    #hide;
    #change;
    #init;
    #animation;
    
    constructor() {
        this.#target = undefined;
        this.#show = undefined;
        this.#hide = undefined;
        this.#change = undefined;
        this.#init = undefined;
        this.#animation = undefined;
    }

    set_target(target) {
        if (!dom_manager.is_element(target)) {
            throw "Target is not HTML element.";
        }

        this.#target = target;
    }

    #is_dualbutton() {
        return this.#show !== undefined || this.#hide !== undefined;
    }

    #is_singlebutton() {
        return this.#change !== undefined;
    }

    set_show(target) {
        if (!dom_manager.is_element(target)) {
            throw "Show button must be HTML element.";
        }

        if (this.#is_singlebutton()) {
            throw "This is single button applet.";
        }

        this.#show = target;
    }

    set_hide(target) {
        if (!dom_manager.is_element(target)) {
            throw "Hide button must be HTML element.";
        }

        if (this.#is_singlebutton()) {
            throw "This is single button applet.";
        }

        this.#hide = hide;
    }

    set_change(target) {
        if (!dom_manager.is_element(target)) {
            throw "Change button must be HTML element.";
        }

        if (this.#is_dualbutton()) {
            throw "This is dual button applet.";
        }

        this.#change = target;
    }

    default_visible() {
        this.#init = true;
    }

    default_hidden() {
        this.#init = false;
    }

    set_animation(target) {
        if (!type_manager.is_function(target)) {
            throw "Animation must be an function.";
        }
    }
}

class applet {

}

export { applet };