'use strict';

const { startTimer, stopTimer } = require('./timer');

const campbellsTomatoSoup = {

contents: 'tomato soup',

weightInOz: 12

};

function openCan(foodCan) {

return new Promise(resolve => {

setTimeout(() => {

resolve(foodCan.contents);

}, 2000);

});

}

function warmUp(food) {

return new Promise(resolve => {

setTimeout(() => {

resolve('hot ' + food);

}, 4000);

});

}

function eat(food) {

return new Promise(resolve => {

console.log('Eating: ' + food);

setTimeout(() => {

console.log('Finished eating: ' + food);

resolve();

}, 4000);

});

}

function eatLunch(cannedFood) {

console.log('Opening can');

return openCan(cannedFood)

.then(contents => {

console.log('Opened can: ' + contents);

console.log('Warming up: ' + contents);

return warmUp(contents);

})

.then(hotFood => {

console.log('Warmed up: ' + hotFood);

return eat(hotFood);

});

}

function main() {

console.log('It\'s lunch time!');

startTimer();

eatLunch(campbellsTomatoSoup)

.then(() => {

stopTimer();

console.log('Finished lunch');

});

}

main();