var mongoose = require('mongoose');

var logger = require('./logger');

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

module.exports = {
    connect: function (callback) {
        // Open DB connection to database.
        mongoose.connect(config.database.host, config.database.name);

        /*
         * Database checks.
         */
        mongoose.connection.on('error', function (error) {
            logger.info('Connection error: ' + error, {
                module: 'Db'
            });

            callback(error);
        });

        mongoose.connection.once('open', function () {
            logger.info('Connection opened.', {
                module: 'Db'
            });

            callback(null);
        });
    }
};