feat: added a new database service

MyINPulse-back/src/main/java/enseirb/myinpulse/service/database/ProjectService.java

@@ -0,0 +1,66 @@
+package enseirb.myinpulse.service.database;
+
+import enseirb.myinpulse.model.Project;
+import enseirb.myinpulse.repository.ProjectRepository;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.time.LocalDate;
+import java.util.Optional;
+
+@Service
+public class ProjectService {
+
+    private final ProjectRepository projectRepository;
+
+    @Autowired
+    ProjectService(ProjectRepository projectRepository) {
+        this.projectRepository = projectRepository;
+    }
+
+    public Iterable<Project> getAllProjects() {
+        return this.projectRepository.findAll();
+    }
+
+    // TODO: change error
+    public Project getProjectById(Long id) {
+        Optional<Project> project = this.projectRepository.findById(id);
+        if (project.isEmpty()) {
+            throw new ResponseStatusException(HttpStatus.NOT_FOUND, "Ce projet n'existe pas");
+        }
+        return project.get();
+    }
+
+    // TODO: validation
+    public Project addNewProject(Project project) {
+        return this.projectRepository.save(project);
+    }
+
+    public Project updateProject(
+            Long id,
+            String projectName,
+            byte[] logo,
+            LocalDate creationDate,
+            String projectStatus) {
+        Optional<Project> project = this.projectRepository.findById(id);
+        if (project.isEmpty()) {
+            throw new ResponseStatusException(HttpStatus.NOT_FOUND, "Ce projet n'existe pas");
+        }
+        if (projectName != null) {
+            project.get().setProjectName(projectName);
+        }
+        if (logo != null) {
+            project.get().setLogo(logo);
+        }
+        if (creationDate != null) {
+            project.get().setCreationDate(creationDate);
+        }
+        if (projectStatus != null) {
+            project.get().setProjectStatus(projectStatus);
+        }
+        return this.projectRepository.save(project.get());
+    }
+}