Making a function to allow free tickets (#551)

* Making a function to allow free tickets

* Set amount of tickets to int instead of float

* Use the ref url instead of hardcoding

* Missing the "?order=" added

src/main/java/ch/wisv/areafiftylan/products/model/order/Order.java

@@ -93,6 +93,11 @@ public float getAmount() {
         return price;
     }
 
+    @JsonView(View.OrderOverview.class)
+    public int getAmountTickets() {
+        return tickets.size();
+    }
+
     public void setUser(User user) {
         this.user = user;
         if (user != null) {

src/main/java/ch/wisv/areafiftylan/products/service/OrderServiceImpl.java

@@ -52,6 +52,9 @@ public class OrderServiceImpl implements OrderService {
     private final PaymentService paymentService;
     private final MailService mailService;
 
+    @Value("${a5l.paymentReturnUrl}")
+    private String RETURN_URL;
+
     @Value("${a5l.orderLimit}")
     private int ORDER_LIMIT;
 
@@ -206,12 +209,16 @@ public Order removeTicketFromOrder(Long orderId, Long ticketId) {
     @Override
     public String requestPayment(Long orderId) {
         Order order = getOrderById(orderId);
-        if (order.getAmount() == 0) {
+        if (order.getAmountTickets() == 0) {
             throw new IllegalStateException("Order can not be empty");
         }
         if (order.getStatus() != OrderStatus.ASSIGNED) {
             throw new UnassignedOrderException(order.getId());
         }
+        if (order.getAmount() == 0) {
+            order.setStatus(OrderStatus.PAID);
+            return RETURN_URL + "?order=" + orderId;
+        }
 
         return paymentService.registerOrder(order);
     }

src/test/java/ch/wisv/areafiftylan/unit/OrderServiceTest.java

@@ -19,20 +19,23 @@
 
 import ch.wisv.areafiftylan.exception.*;
 import ch.wisv.areafiftylan.products.model.Ticket;
+import ch.wisv.areafiftylan.products.model.TicketType;
 import ch.wisv.areafiftylan.products.model.order.Order;
 import ch.wisv.areafiftylan.products.model.order.OrderStatus;
 import ch.wisv.areafiftylan.users.model.User;
 import ch.wisv.areafiftylan.utils.mail.MailService;
 import org.junit.jupiter.api.Test;
 import org.mockito.Mockito;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.security.core.userdetails.UsernameNotFoundException;
 import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
 
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
+import java.time.LocalDateTime;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.junit.jupiter.api.Assertions.*;
@@ -44,6 +47,9 @@ public class OrderServiceTest extends ServiceTest {
     @Autowired
     private MailService mailService;
 
+    @Value("${a5l.paymentReturnUrl}")
+    private String RETURN_URL;
+
     @Test
     public void getOrderById() {
         Long id = testEntityManager.persistAndGetId(new Order(), Long.class);
@@ -493,6 +499,21 @@ public void requestPayment() {
         reset(paymentService);
     }
 
+    @Test
+    public void requestPaymentFree() {
+        User user = persistUser();
+        Order order = new Order(user);
+        TicketType ticketType = new TicketType("testPaymentFree", "testPaymentFree", 0.0f, 15, LocalDateTime.of(3021, 6, 3, 0, 0), true);
+        Ticket ticket = new Ticket(ticketType);
+        assertEquals(0.0, ticket.getPrice(), 0.0001);
+        order.addTicket(ticket);
+
+        Long id = testEntityManager.persistAndGetId(order, Long.class);
+        assertEquals(RETURN_URL + "?order=" + order.getId(), orderService.requestPayment(id));
+        verify(paymentService, never()).registerOrder(Mockito.any(Order.class));
+        reset(paymentService);
+    }
+
     @Test
     public void requestPaymentEmptyOrder() {
         User user = persistUser();