On-demand assets load

<?php
function launcher_assets() {
    //echo basename(get_page_template());
    //die();

    if (is_page()) {
        $launcher_template_name = basename(get_page_template());
        if ($launcher_template_name == "launcher.php") {
            wp_enqueue_style("animate-css", get_theme_file_uri("/assets/css/animate.css"));
            wp_enqueue_style("icomoon-css", get_theme_file_uri("/assets/css/icomoon.css"));
            wp_enqueue_style("bootstrap-css", get_theme_file_uri("/assets/css/bootstrap.css"));
            wp_enqueue_style("style-css", get_theme_file_uri("/assets/css/style.css"));
            wp_enqueue_style("launcher", get_stylesheet_uri(), null, "0.1");

            wp_enqueue_script("easing-jquery-js", get_theme_file_uri("/assets/js/jquery.easing.1.3.js"), array("jquery"), null, true);
            wp_enqueue_script("bootstrap-jquery-js", get_theme_file_uri("/assets/js/bootstrap.min.js"), array("jquery"), null, true);
            wp_enqueue_script("waypoint-jquery-js", get_theme_file_uri("/assets/js/jquery.waypoints.min.js"), array("jquery"), null, true);
            wp_enqueue_script("countdown-jquery-js", get_theme_file_uri("/assets/js/simplyCountdown.js"), array("jquery"), null, true);
            wp_enqueue_script("main-jquery-js", get_theme_file_uri("/assets/js/main.js"), array("jquery"), time(), true);

            $launcher_year  = get_post_meta(get_the_ID(), "year", true);
            $launcher_month = get_post_meta(get_the_ID(), "month", true);
            $launcher_day   = get_post_meta(get_the_ID(), "day", true);

            wp_localize_script("main-jquery-js", "datedata", array(
                "year"  => $launcher_year,
                "month" => $launcher_month,
                "day"   => $launcher_day,
            ));
        } else {
            wp_enqueue_style("bootstrap-css", get_theme_file_uri("/assets/css/bootstrap.css"));
            wp_enqueue_style("launcher", get_stylesheet_uri(), null, "0.1");

        }
    }

}

add_action("wp_enqueue_scripts", "launcher_assets");