✨ (#177): Add PersistOrganizationDelegate and its tests

Implemented PersistOrganizationDelegate to handle the persistence of organizations, their owners, and root Bommels. Added unit tests to verify that organizations, members, and root Bommels are correctly persisted, ensuring integrity and expected behavior. Introduced a default emoji for root Bommels to standardize their representation.

backend/app.hopps.org/src/main/java/app/hopps/org/delegates/PersistOrganizationDelegate.java

@@ -0,0 +1,35 @@
+package app.hopps.org.delegates;
+
+import app.hopps.org.jpa.*;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
+import jakarta.transaction.Transactional;
+import jakarta.validation.Valid;
+
+@ApplicationScoped
+public class PersistOrganizationDelegate {
+
+    @Inject
+    OrganizationRepository organizationRepository;
+
+    @Inject
+    MemberRespository memberRepository;
+
+    @Inject
+    BommelRepository bommelRepository;
+
+    @Transactional
+    public void persistOrg(@Valid Organization organization, @Valid Member owner) {
+        memberRepository.persist(owner);
+        organizationRepository.persist(organization);
+
+        Bommel rootBommel = new Bommel();
+        rootBommel.setName(organization.getName());
+        rootBommel.setParent(null);
+        rootBommel.setOrganization(organization);
+        rootBommel.setEmoji(Bommel.DEFAULT_ROOT_BOMMEL_EMOJI);
+        rootBommel.setResponsibleMember(owner);
+
+        bommelRepository.persist(rootBommel);
+    }
+}

backend/app.hopps.org/src/main/java/app/hopps/org/jpa/Bommel.java

@@ -55,6 +55,7 @@ with children_query as (
                 """)
 })
 public class Bommel extends PanacheEntity {
+    public static final String DEFAULT_ROOT_BOMMEL_EMOJI="\uD83C\uDF33"; // tree
 
     private String name;
     private String emoji;

backend/app.hopps.org/src/test/java/app/hopps/org/delegates/PersistOrganizationDelegateTests.java

@@ -0,0 +1,62 @@
+package app.hopps.org.delegates;
+
+import app.hopps.org.jpa.*;
+import io.quarkus.test.junit.QuarkusTest;
+import jakarta.inject.Inject;
+import jakarta.transaction.Transactional;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.equalTo;
+import static org.hamcrest.Matchers.hasItem;
+import static org.hamcrest.Matchers.hasProperty;
+import static org.hamcrest.collection.IsIterableWithSize.iterableWithSize;
+
+@QuarkusTest
+public class PersistOrganizationDelegateTests {
+
+    @Inject
+    PersistOrganizationDelegate persistOrganizationDelegate;
+
+    @Inject
+    BommelRepository bommelRepository;
+
+    @Inject
+    OrganizationRepository organizationRepository;
+
+    @Inject
+    MemberRespository memberRepository;
+
+    @BeforeEach
+    @Transactional
+    void cleanupDB()
+    {
+        bommelRepository.deleteAll();
+        organizationRepository.deleteAll();
+        memberRepository.deleteAll();
+    }
+
+    @Test
+    void shouldCreateRootBommel()
+    {
+        // given
+        Organization kegelclub = new Organization();
+        kegelclub.setName("Kegelklub 777");
+        kegelclub.setType(Organization.TYPE.EINGETRAGENER_VEREIN);
+        kegelclub.setSlug("kegelklub-777");
+
+        Member kevin = new Member();
+        kevin.setFirstName("Kevin");
+        kevin.setLastName("Kegelkönig");
+        kevin.setEmail("[email protected]");
+
+        // when
+        persistOrganizationDelegate.persistOrg(kegelclub, kevin);
+
+        // then
+        assertThat(organizationRepository.listAll(), iterableWithSize(1));
+        assertThat(bommelRepository.listAll(), iterableWithSize(1));
+        assertThat(bommelRepository.listAll(), hasItem(hasProperty("emoji", equalTo("\uD83C\uDF33"))));
+    }
+}