var loopback = require('loopback');
var boot = require('loopback-boot');
var path = require('path');
var fs = require('fs');
var i18n = require('i18n');

module.exports = {
    loopback: loopback,
    boot: vnBoot
};

function vnBoot(app, rootDir, cb) {
    // Internationalization

    let i18nDir = rootDir + '/i18n';

    if (fs.existsSync(i18nDir)) {
        i18n.configure({
            directory: i18nDir,
            defaultLocale: 'es'
        });

        app.get('/prueba', function(req, res) {
            i18n.setLocale(req.get('Accept-Language').substring(0,2));
            res.send(i18n.__('Hello'));
        });
    }

    // View

    let viewDir = path.join(rootDir, '../client');

    if (fs.existsSync(viewDir)) {
        app.set('view engine', 'ejs');
        app.set('views', viewDir);
        app.use(loopback.static(path.resolve(rootDir, '../client')));
    }

    // Initialization

    let packageJson = require(rootDir + '/../package.json');
    let appName = packageJson.name;

    app.start = function() {
        return app.listen(function() {
            app.emit('started');
            var baseUrl = app.get('url').replace(/\/$/, '');
            console.log(`Web server ${appName} listening at: %s`, baseUrl);
        });
    };

    let config = require('./config.json');

    for (var key in config) {
        app.set(key, config[key]);
    }

    var bootOptions = {
        appRootDir: __dirname,
        appConfigRootDir: rootDir,
        modelsRootDir: rootDir,
        modelSources: [
            "loopback/common/models",
            "loopback/server/models",
            __dirname + "/../common/models",
            __dirname + "/models",
            rootDir + "/../common/models",
            rootDir + "/models"
        ],
        mixinDirs: [
            "loopback/common/mixins",
            "loopback/server/mixins",
            __dirname + "/../common/mixins",
            __dirname + "/mixins",
            rootDir + "/../common/mixins",
            rootDir + "/mixins"
        ],
        bootDirs: [
            __dirname + "/boot",
            rootDir + "/boot"
        ]
    };

    boot(app, bootOptions, function(err) {
        if (err) throw err;
        if (require.main === module)
            app.start();

        if (cb)
            cb(app);
    });
}