Základní funkčnost Pizza Day

server/src/service.ts

@@ -1,4 +1,4 @@
-import { ClientData, Locations, State } from "./types";
+import { ClientData, Locations, Order, Pizza, PizzaDayState, PizzaOrder, PizzaSize } from "./types";
 import { db } from "./database";
 import { getHumanDate, getIsWeekend } from "./utils";
 import { formatDate } from "./utils";
@@ -34,7 +34,7 @@ export function createPizzaDay(creator: string): ClientData {
     if (clientData.pizzaDay) {
         throw Error("Pizza day pro dnešní den již existuje");
     }
-    const data: ClientData = { pizzaDay: { state: State.CREATED, creator, orders: [] }, ...clientData };
+    const data: ClientData = { pizzaDay: { state: PizzaDayState.CREATED, creator, orders: [] }, ...clientData };
     db.set(today, data);
     return data;
 }
@@ -54,6 +54,70 @@ export function deletePizzaDay(login: string) {
     db.delete(today);
 }
 
+/**
+ * Přidá objednávku pizzy uživateli.
+ * 
+ * @param login login uživatele
+ * @param pizza zvolená pizza
+ * @param size zvolená velikost pizzy
+ */
+export function addPizzaOrder(login: string, pizza: Pizza, size: PizzaSize) {
+    const today = formatDate(getToday());
+    const clientData: ClientData = db.get(today);
+    if (!clientData.pizzaDay) {
+        throw Error("Pizza day pro dnešní den neexistuje");
+    }
+    let order: Order | undefined = clientData.pizzaDay.orders.find(o => o.customer === login);
+    if (!order) {
+        order = {
+            customer: login,
+            pizzaList: [],
+            totalPrice: 0,
+        }
+        clientData.pizzaDay.orders.push(order);
+    }
+    const pizzaOrder: PizzaOrder = {
+        name: pizza.name,
+        size: size.size,
+        price: size.price,
+    }
+    order.pizzaList.push(pizzaOrder);
+    order.totalPrice += pizzaOrder.price;
+    db.set(today, clientData);
+    return clientData;
+}
+
+/**
+ * Odstraní danou objednávku pizzy.
+ * 
+ * @param login login uživatele
+ * @param pizzaOrder objednávka pizzy
+ */
+export function removePizzaOrder(login: string, pizzaOrder: PizzaOrder) {
+    const today = formatDate(getToday());
+    const clientData: ClientData = db.get(today);
+    if (!clientData.pizzaDay) {
+        throw Error("Pizza day pro dnešní den neexistuje");
+    }
+    const orderIndex = clientData.pizzaDay.orders.findIndex(o => o.customer === login);
+    if (orderIndex < 0) {
+        throw Error("Nebyly nalezeny žádné objednávky pro uživatele " + login);
+    }
+    const order = clientData.pizzaDay.orders[orderIndex];
+    const index = order.pizzaList.findIndex(o => o.name === pizzaOrder.name && o.size === pizzaOrder.size);
+    if (index < 0) {
+        throw Error("Objednávka s danými parametry nebyla nalezena");
+    }
+    const price = order.pizzaList[index].price;
+    order.pizzaList.splice(index, 1);
+    order.totalPrice -= price;
+    if (order.pizzaList.length == 0) {
+        clientData.pizzaDay.orders.splice(orderIndex, 1);
+    }
+    db.set(today, clientData);
+    return clientData;
+}
+
 export function initIfNeeded() {
     const today = formatDate(getToday());
     if (!db.has(today)) {