2_restaurant - js advanced exam

class Restaurant {
    constructor(budget) {

        this.budgetMoney = Number(budget);
        this.menu = {};
        this.stockProducts = {};
        this.history = [];
    }


    loadProducts(products) {
        products.forEach((el) => {
            let [name, quantity, totalPrice] = el.split(" ");


            quantity = Number(quantity);
            totalPrice = Number(totalPrice);
            if (this.budgetMoney >= totalPrice) {
                if (!this.stockProducts[name]) {
                    this.stockProducts[name] = 0;
                }
                this.stockProducts[name]+= quantity;
                this.budgetMoney-= totalPrice;
                this.history.push(`Successfully loaded ${quantity} ${name}`);
            } else {
                this.history.push(`There was not enough money to load ${quantity} ${name}`);
            }
        });

        return this.history.join("\n");
    }

    addToMenu(meal, products, price) {
        if (!this.menu[meal]) {
            this.menu[meal] = {
                products: {},
                price: price
            }

            products.forEach((el)=> {
                let [name, quantity] = el.split(" ");
                quantity = Number(quantity);
                this.menu[meal].products[name] = quantity;
            })

            const mealCount = Object.keys(this.menu).length;
            if (mealCount == 1) {
                return `Great idea! Now with the ${meal} we have 1 meal in the menu, other ideas?`
            } else {
                return `Great idea! Now with the ${meal} we have ${mealCount} meals in the menu, other ideas?`
            }

        } else {
            return `The ${meal} is already in the our menu, try something different.`
        }
    }

    showTheMenu() {
        if (Object.keys(this.menu).length == 0) {
            return "Our menu is not ready yet, please come later...";
        } else {
            let result = [];

            for (let meal in this.menu) {
                result.push(`${meal} - $ ${this.menu[meal].price}`);
            }

            return result.join("\n");
        }
    }

    makeTheOrder(meal) {
        if (!this.menu[meal]) {
            return `There is not ${meal} yet in our menu, do you want to order something else?`
        } else {
            const neededProducts = {};
            for (let product in this.menu[meal].products) {
                if (!this.stockProducts[product] || this.stockProducts[product] < this.menu[meal].products[product]) {
                    return `For the time being, we cannot complete your order (${meal}), we are very sorry...`
                } else {
                    neededProducts[product] = this.menu[meal].products[product];
                }
            }

            for (let neededProduct in neededProducts) {
                this.stockProducts[neededProduct] -= neededProducts[neededProduct];
            }

            this.budgetMoney+= this.menu[meal].price;

            return `Your order (${meal}) will be completed in the next 30 minutes and will cost you ${this.menu[meal].price}.`
        }
    }
}