Centralized notification sending

notification-sender.js

class LazyBlazeTemplateCompiler {
    constructor() {
        //store compiled templates in key-value store
        this._templateCache = {};
    }

    compile(templateName) {
        //check if template already compiled
        //compile if it isn't yet compiled
        const handleBarsText = Assets.getText(`notification-templates/${templateName}`);

        //return compiled template
        return this._templateCache[templateName];
    }
}


const blazeCompiler = new LazyBlazeTemplateCompiler();


class NotificationSender {
    constructor(subject, template, templateData) {
        //store options
    }

    _renderTemplate(notificationType) {
        //render template according to notification type

        // as you see templates for each notification type are 
        // stored in separate catalog under 
        // "/private/notification-templates/<template-type>/<template-name>"
        return blazeCompiler.compile(`${notificationType}/${this.template}`)(this.templateData);
    }

    sendEmail(receiverId) {
        //todo
        return this;//allows chaining
    }


    sendBuiltIn(receiverId) {
        //todo
        return this;//allows chaining
    }


    sendBrowser(receiverId) {
        //todo
        return this;//allows chaining
    }


    sendMobile(receiverId) {
        //todo
        return this;//allows chaining
    }

    //any other notification type you would like is here

    sendAll() {
        //call others methods from above
        //chaining doesn't make sense
    }
}

//usage example
const receiver = Meteor.userId();

const notificationSender = new NotificationSender(
        'Hello world notification',
        'hello-world',
        { customText: 'some text here' }
);

notificationSender.sendMobile(receiver).sendBuiltin(receiver); // just send some notification types