- Item (book, $25, 0.5kg in weight) is added to the queue
- Introduce new item event
- Introduce shopping cart state with added book
- Trigger effect of putting in the other queue that the shipping option for this order is now:
- $5 shipping cost
- worldwide delivery
- Item (game, $30, 0.2kg in weight) is added to the queue
- Update shopping cart state with added game
- Item (grand piano, $6 500, 220 kg) is added to the queue
- Update shopping cart with the added piano
- Trigger effect of putting in the order queue that the shipping option for the order is now:
- $150
- only in your country (Sweden I guess)