"use strict";

class DatabaseManager {
  read(id) {
    /* abstract */
  }
  save(data) {
    /* abstract */
  }
  update(id, data) {
    /* abstract */
  }
  delete(id) {
    /* abstract */
  }
}

class MySQlDatabase extends DatabaseManager {
  constructor() {
    super();
    this.items = [];
  }

  read(id) {
    return this.items.filter((i) => i.id === id);
  }

  save(data) {
    let id = this.items.length + 1;
    data.id = id;

    this.items.push(data);
    return id;
  }

  update(id, data) {
    var foundIndex = this.items.findIndex(
      (x) => x !== undefined && x.id === id
    );
    this.items[foundIndex] = data;
    return { id };
  }
  delete(id) {
    this.items = this.items.filter((i) => i.id !== id);
    return id;
  }
}

let database = new MySQlDatabase();

let data = { name: "Ramiro Andrés" };
let id = database.save(data);
let itemSaved = database.read(id)[0];
console.log("item Saved:", itemSaved);
itemSaved.name = "Ramiro Andrés Bedoya Escobar";
database.update(itemSaved.id, itemSaved);
let itemUpdated = database.read(id)[0];
console.log("item updated:", itemUpdated);

database.delete(id);
let itemDeleted = database.read(id);
console.log("item deleted:", itemDeleted);

/* 
DatabaseLoggerDecorator: saving item {"name":"Ramiro Andrés"}. instanceof MySQlDatabase
DatabaseLoggerDecorator: getting item 1. instanceof MySQlDatabase
item Saved: { name: 'Ramiro Andrés', id: 1 }
DatabaseLoggerDecorator: updating item 1 {"name":"Ramiro Andrés Bedoya Escobar","id":1}. instanceof MySQlDatabase
DatabaseLoggerDecorator: getting item 1. instanceof MySQlDatabase
item updated: { name: 'Ramiro Andrés Bedoya Escobar', id: 1 }
DatabaseLoggerDecorator: deleting item 1.  instanceof MySQlDatabase
DatabaseLoggerDecorator: getting item 1. instanceof MySQlDatabase
item deleted: [] 
*/