bar.js

export function get_base_url(localized=false) {
    const host_url = document.body.getAttribute('data-host_url');
    let base_url;

    if (localized) {
        const prefix = document.body.getAttribute('data-script_name_');
        const edit_lang = document.body.getAttribute('data-edit_locale');
        
        if (prefix !== null && edit_lang) {
            base_url = host_url + prefix + '/' + edit_lang;
        }
    }

    if (!base_url) {
        const prefix = document.body.getAttribute('data-script_name');
        base_url = host_url + prefix;
    }

    if (!base_url.endsWith('/')) {
        base_url += '/';
    }

    return base_url;
}

export function site_url(args, { base_url = null, localized = true } = {}) {
    let url;

    if (!base_url) {
        base_url = get_base_url(localized);
    }
    
    if (typeof(args) === 'string') {
        url = [args];
    } else if (typeof(args) === 'number') {
        url = [args.toString()];
    } else {
        url = args;
    }
    
    if (base_url) {
        url.splice(0, 0, base_url);
    }

    return url.join('/').replace(/([^:]\/)\/+/g, "$1");
}