const ua = require('universal-analytics');
const bluebird = require('bluebird');

const GOOGLE_ANALYTICS_ID = require('../../config').googleAnalytics.uid;

class GoogleAnalytics {
    constructor(uid) {
        this._uid = uid;
        this._visitor = ua(GOOGLE_ANALYTICS_ID, this._uid, { strictCidFormat: false, });

        bluebird.promisifyAll(this._visitor);
    }

    sendEvent(category, action, label) {
        if (!this._visitor) return;

        this._visitor.eventAsync(category, action, label)
        .catch(error => console.error(error));
    }
}

module.exports = GoogleAnalytics;