'use strict';

/* global CloudCmd */
const rendy = require('rendy');
const itype = require('itype');
const load = require('load.js');
const tryToCatch = require('try-to-catch');

const {findObjByNameInArr} = require('../../common/util');

const Files = require('./files');

module.exports = (name, options, callback = options) => {
    const {prefix, config} = CloudCmd;
    const o = options;
    
    if (o.name && window[o.name])
        return callback();
    
    Files
        .get('modules')
        .then(async (modules) => {
            const online = config('online') && navigator.onLine;
            const module = findObjByNameInArr(modules.remote, name);
        
            const isArray = itype.array(module.local);
            const {version} = module;
        
            let remoteTmpls;
            let local;
        
            if (isArray) {
                remoteTmpls = module.remote;
                local = module.local;
            } else {
                remoteTmpls = [module.remote];
                local = [module.local];
            }
        
            const localURL = local.map((url) => prefix + url);
        
            const remoteURL = remoteTmpls.map((tmpl) => {
                return rendy(tmpl, {
                    version,
                });
            });
        
            if (online) {
                const [e] = await tryToCatch(load.parallel, remoteURL);
            
                if (!e)
                    return callback();
            }
        
            const [e] = await tryToCatch(load.parallel, localURL);
            callback(e);
        });
};