(() => {
    let ingredients = {};
    ingredients['protein'] = 0;
    ingredients['carbohydrate'] = 0;
    ingredients['fat'] = 0;
    ingredients['flavour'] = 0;

    function restock([microelement, quantity]) {
        quantity = +quantity;
        ingredients[microelement] += quantity
        return 'Success';

    }

    function prepare([recipe, quantity]) {
        quantity = +quantity;
        let msg = '';
        switch (recipe) {
            case 'apple':
                if (ingredients['flavour'] < quantity * 2) {
                    msg = "Error: not enough flavour in stock";
                }
                if (ingredients['carbohydrate'] < quantity) {
                    msg = "Error: not enough carbohydrate in stock";
                } else {
                    ingredients['flavour'] -= quantity * 2;
                    ingredients['carbohydrate'] -= quantity;
                    msg = "Success";
                }
                return msg;
                break;
            case 'lemonade':
                if (ingredients['carbohydrate'] < quantity * 10) {
                    msg = "Error: not enough carbohydrate in stock";
                }
                if (ingredients['flavour'] < quantity * 20) {
                    msg = "Error: not enough flavour in stock";

                } else {
                    ingredients['flavour'] -= quantity * 20;
                    ingredients['carbohydrate'] -= quantity * 10;
                    msg = "Success";
                }
                return msg;
                break;
            case 'burger':
                if (ingredients['carbohydrate'] < quantity * 5) {
                    msg = "Error: not enough flavour in stock";
                }
                if (ingredients['fat'] < quantity * 7) {
                    msg = "Error: not enough fat in stock";
                }
                if (ingredients['flavour'] < quantity * 3) {
                    msg = "Error: not enough flavour in stock";
                } else {
                    ingredients['flavour'] -= quantity * 3;
                    ingredients['fat'] -= quantity * 7;
                    ingredients['carbohydrate'] -= quantity * 5;
                    msg = 'Success'
                }
                return msg;
                break;
            case 'eggs':
                if (ingredients['protein'] < quantity * 5) {
                    msg = "Error: not enough protein in stock";
                }
                if (ingredients['fat'] < quantity) {
                    msg = "Error: not enough fat in stock";
                }
                if (ingredients['flavour'] < quantity) {
                    msg = "Error: not enough flavour in stock";
                } else {
                    ingredients['flavour'] -= quantity ;
                    ingredients['fat'] -= quantity ;
                    ingredients['protein'] -= quantity * 5;
                    msg = 'Success'
                }
                return msg;
                break;
            case 'turkey':
                if (ingredients['protein'] < quantity * 10) {
                    msg = "Error: not enough protein in stock";
                }
                if(ingredients['carbohydrate'] < quantity * 10){
                    msg = "Error: not enough carbohydrate in stock";
                }
                if(ingredients['fat'] < quantity * 10){
                    msg = "Error: not enough fat in stock";
                }
                if(ingredients['flavour'] < quantity * 10){
                    msg = "Error: not enough flavour in stock";
                }else{
                    ingredients['protein'] -= quantity * 10;
                    ingredients['fat'] -= quantity * 10;
                    ingredients['carbohydrate'] -= quantity * 10;
                    ingredients['flavour'] -= quantity * 10;
                    msg = 'Success';
                }
                return msg;
                break;
        }
    }
    function report() {
        return `protein=${ingredients['protein']} carbohydrate=${ingredients['carbohydrate']} fat=${ingredients['fat']} flavour=${ingredients['flavour']}`;
    }
    return function (command) {
        let tokens = command.split(' ');
        let action = tokens.shift();
        switch (action) {
            case "prepare":
                return prepare(tokens);
                break;
            case "restock":
                return restock(tokens);
                break;
            case "report":
                return report();
        }
    }
})();