export class MouseCursorHider {
    static #timeout: number | null;
    static #cursorVisible = true;

    static show() {
        document.body && (document.body.style.cursor = 'unset');
        MouseCursorHider.#cursorVisible = true;
    }

    static hide() {
        document.body && (document.body.style.cursor = 'none');
        MouseCursorHider.#timeout = null;
        MouseCursorHider.#cursorVisible = false;
    }

    static onMouseMove(e: MouseEvent) {
        // Toggle cursor
        !MouseCursorHider.#cursorVisible && MouseCursorHider.show();
        // Setup timeout
        MouseCursorHider.#timeout && clearTimeout(MouseCursorHider.#timeout);
        MouseCursorHider.#timeout = window.setTimeout(MouseCursorHider.hide, 3000);
    }

    static start() {
        MouseCursorHider.show();
        document.addEventListener('mousemove', MouseCursorHider.onMouseMove);
    }

    static stop() {
        MouseCursorHider.#timeout && clearTimeout(MouseCursorHider.#timeout);
        document.removeEventListener('mousemove', MouseCursorHider.onMouseMove);
        MouseCursorHider.show();
    }
}