Facade.ts

class Notify {
	send(template: string, to: string) {
		console.log(`Отправляю ${template}: ${to}`)
	}
}

class Log {
	log(message: string) {
		console.log(message)
	}
}

class Template {
	private templates = [
		{name: 'other', template: `<h1>Шаблон<h1>`}
	]

	getByName(name: string) {
		return this.templates.find(t => t.name === name)
	}
}

class NotificationFacade {
	private notify: Notify;
	private log: Log;
	private template: Template;

	constructor() {
		this.notify = new Notify()
		this.log = new Log()
		this.template = new Template()
	}

	send(to: string, templateName: string) {
		const data = this.template.getByName(templateName);
		if (!data) {
			this.log.log('Не найден шаблон')
			return;
		}

		this.notify.send(data.template, to)
		this.log.log('Шаблон отправлен')
	}
}

const s = new NotificationFacade()
s.send('a@a.ua', 'other')