Facade pattern

class-facade.js

/** 
 * The Facade pattern simplifies and hides the underlying complexity of a large abody of 
 * code by providing a cleaner and easy to use interface.
 */

class TaskService {
 constructor(data){
   this.name = data.name;
   this.priority = data.priority;
   this.project = data.project;
   this.user = data.user;
   this.completed = data.completed;
 }

 complete() {
   this.completed = true;
   console.log('completing task: ' + this.name);
 }

 setCompleteDate() {
   this.completedDate = new Date();
   console.log(this.name + ' completed on ' + this.completedDate);
 }

 notifyCompletion() {
   console.log('Notifying ' + this.user + ' of the completion of ' + this.name);
 }
 save () {
  console.log('saving Task: ' + this.name);
 }
}

class TaskServiceFacade extends TaskService{
   constructor(data){
   super(data)
 }
   completeAndNotify(){
   this.complete();
   this.setCompleteDate();
   this.notifyCompletion();
   this.save();
 }
}

let mytask = new TaskServiceFacade({
 name: 'MyTask',
 priority: 1,
 project: 'Courses',
 user: 'Jon',
 completed: false
})
console.log(mytask.completeAndNotify())
// completing task: MyTask

// MyTask completed on Sun Jan 06 2019 09:54:33 GMT+0100 (West Africa Standard Time)

// Notifying Jon of the completion of MyTask

// saving Task: MyTask