feat(admin): added listing users for admins

src/main/java/dev/cloudeko/zenei/application/web/resource/AdminUsersResource.java

@@ -1,5 +1,7 @@
 package dev.cloudeko.zenei.application.web.resource;
 
+import dev.cloudeko.zenei.application.web.model.response.PrivateUserResponse;
+import dev.cloudeko.zenei.domain.feature.ListUsers;
 import jakarta.ws.rs.GET;
 import jakarta.ws.rs.Path;
 import jakarta.ws.rs.Produces;
@@ -10,16 +12,22 @@
 import org.eclipse.microprofile.openapi.annotations.tags.Tag;
 
 import javax.annotation.security.RolesAllowed;
+import java.util.stream.Collectors;
 
 @AllArgsConstructor
 @RolesAllowed("admin")
 @Path("/admin/users")
 @Tag(name = "Admin Users Service", description = "API for managing users")
 public class AdminUsersResource {
 
+    private final ListUsers listUsers;
+
     @GET
     @Produces(MediaType.APPLICATION_JSON)
     public Response getUsers(@QueryParam("page") Integer page, @QueryParam("size") Integer size) {
-        return Response.ok().build();
+        final var users = listUsers.listUsers(page, size);
+        final var usersResponse = users.stream().map(PrivateUserResponse::new).toList();
+
+        return Response.ok(usersResponse).build();
     }
 }

src/main/java/dev/cloudeko/zenei/domain/feature/ListUsers.java

@@ -0,0 +1,9 @@
+package dev.cloudeko.zenei.domain.feature;
+
+import dev.cloudeko.zenei.domain.model.user.User;
+
+import java.util.List;
+
+public interface ListUsers {
+    List<User> listUsers(int offset, int limit);
+}

src/main/java/dev/cloudeko/zenei/domain/feature/impl/ListUsersImpl.java

@@ -0,0 +1,21 @@
+package dev.cloudeko.zenei.domain.feature.impl;
+
+import dev.cloudeko.zenei.domain.feature.ListUsers;
+import dev.cloudeko.zenei.domain.model.user.User;
+import dev.cloudeko.zenei.domain.model.user.UserRepository;
+import jakarta.enterprise.context.ApplicationScoped;
+import lombok.AllArgsConstructor;
+
+import java.util.List;
+
+@ApplicationScoped
+@AllArgsConstructor
+public class ListUsersImpl implements ListUsers {
+
+    private final UserRepository userRepository;
+
+    @Override
+    public List<User> listUsers(int offset, int limit) {
+        return userRepository.listUsers(offset, limit);
+    }
+}

src/main/java/dev/cloudeko/zenei/domain/model/user/UserRepository.java

@@ -1,5 +1,6 @@
 package dev.cloudeko.zenei.domain.model.user;
 
+import java.util.List;
 import java.util.Optional;
 
 public interface UserRepository {
@@ -15,4 +16,6 @@ public interface UserRepository {
     Optional<User> getUserByEmail(String email);
 
     Optional<User> getUserByUsername(String username);
+
+    List<User> listUsers(int offset, int limit);
 }

src/main/java/dev/cloudeko/zenei/infrastructure/repository/hibernate/panache/UserRepositoryPanache.java

@@ -7,6 +7,7 @@
 import jakarta.enterprise.context.ApplicationScoped;
 import lombok.AllArgsConstructor;
 
+import java.util.List;
 import java.util.Optional;
 
 @ApplicationScoped
@@ -60,4 +61,11 @@ public Optional<User> getUserByUsername(String username) {
 
         return Optional.of(userMapper.toDomain(userEntity));
     }
+
+    @Override
+    public List<User> listUsers(int offset, int limit) {
+        return findAll().page(offset, limit).list().stream()
+                .map(userMapper::toDomain)
+                .toList();
+    }
 }