Coffee Shop Order Screen.txt

# Coffee shop scenario

Background: *This scenario is from a self-service ordering touchscreen at a coffee shop that you are assigned to develop. Jill is a customer who wants some coffee.*

Jill starts to order some coffee at the touchscreen. She adds a small, dark roast. Then
she adds a large medium roast with double almond syrup. She adds a
medium medium roast with two soy milk shots (the second one by
accident). She reads the price and it's too expensive. So she removes
the second coffee (the one with the almond syrup). Then she realizes
the third coffee has two soy milk shots and she removes one. The price
looks good, so she submits the order.

Coffee shop scenario

Background: This scenario is from a self-service ordering touchscreen at a coffee shop that you are assigned to develop. Jill is a customer who wants some coffee.

(ns domain-exercise)

(defn create-order [])                                      ;;=> order
;; Jill starts to order some coffee at the touchscreen.

(defn add-coffee [order & {:keys [size]}])                  ;;=> order
;; She adds a small, dark roast.

(defn change-coffee [order coffee-id & {:keys [size addons]}]) ;;=> order
;; Then she adds a large medium roast with double almond syrup.

(defn add-coffee [order & {:keys [size addons]}])           ;;=> order
;; She adds a medium medium roast with two soy milk shots (the second one by accident).

(defn remove-coffee [order coffee-id])                      ;;=> order
;; She reads the price and it's too expensive. So she removes the second coffee (the one with the almond syrup).

(defn change-coffee [order coffee-id & {:keys [addons]}])   ;;=> order
;; Then she realizes the third coffee has two soy milk shots and she removes one.

(defn submit-order [order-id])                              ;;=> order
;; The price looks good, so she submits the order.

Jill starts to order some coffee at the touchscreen.

;; Order
(defn create-order []) ;;=> Order

;; Coffee
(defn create-coffee []) ;;=> Coffee

She adds a small, dark roast.

(defn coffee-size [coffee size])    ;;=> Coffee
(defn coffee-roast [coffee roast])  ;;=> Coffee
(defn add-to-order [coffee] ;=> Order

Then she adds a large medium roast with double almond syrup.

(defn coffee-syrup [coffee syrup]   ;=> Coffee

She adds a medium medium roast with two soy milk shots (the second one by accident).

(defn coffee-mix-in [coffee mix])   ;;=> Coffee

She reads the price and it's too expensive.

So she removes the second coffee (the one with the almond syrup).

Then she realizes the third coffee has two soy milk shots and she removes one.

The price looks good, so she submits the order.

Coffee shop scenario

;; Background: This scenario is from a self-service ordering touchscreen at a
;; coffee shop that you are assigned to develop. Jill is a customer who wants
;; some coffee.

;; order: Jill starts to order
;; coffee: some coffee at the touchscreen.
;; roast: She adds a small, dark roast.
;; amend-order: Then she adds a
;; coffee: large medium roast
;; complement syrup: with double almond syrup.
;; amend-order: She adds a medium
;; roast: medium roast
;; complement soy milk: with two soy milk shots
;; complement soy milk - second time: (the second one by accident).
;; She reads the price and it's too expensive.
;; amend-order (by index): So she removes the second coffee (the one with the almond syrup).
;; amend-order (remove complement by index to a coffee): Then she realizes the third coffee has two soy milk shots and she removes one.
;; execute-order: The price looks good, so she submits the order.

;; parts
;; - order - [index of coffees]
;; - coffee - [type, complements]
;; - complement - [type]