Pizdec

src/main/java/ru/dxunvrs/todo/service/TaskServiceImpl.java

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+package ru.dxunvrs.todo.service;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import ru.dxunvrs.todo.dto.TaskCreateRequest;
+import ru.dxunvrs.todo.dto.TaskResponse;
+import ru.dxunvrs.todo.dto.TaskUpdateRequest;
+import ru.dxunvrs.todo.entity.Task;
+import ru.dxunvrs.todo.exception.TaskNotFoundException;
+import ru.dxunvrs.todo.mapper.TaskMapper;
+import ru.dxunvrs.todo.repository.TaskRepository;
+
+@Service
+@RequiredArgsConstructor
+public class TaskServiceImpl implements TaskService {
+
+    private final TaskRepository taskRepository;
+    private final TaskMapper taskMapper;
+
+    @Override
+    @Transactional(readOnly = true)
+    public TaskResponse getById(Long id) {
+        Task task = taskRepository.findById(id)
+                .orElseThrow(() -> new TaskNotFoundException("Task not found with id: " + id));
+        return taskMapper.toResponse(task);
+    }
+
+    @Override
+    @Transactional
+    public TaskResponse create(TaskCreateRequest request) {
+        Task task = taskMapper.toEntity(request);
+        Task saved = taskRepository.save(task);
+        return taskMapper.toResponse(saved);
+    }
+
+    @Override
+    @Transactional
+    public TaskResponse update(Long id, TaskUpdateRequest request) {
+        Task task = taskRepository.findById(id)
+                .orElseThrow(() -> new TaskNotFoundException("Task not found with id: " + id));
+        taskMapper.updateEntity(task, request);
+        Task updated = taskRepository.save(task);
+        return taskMapper.toResponse(updated);
+    }
+
+    @Override
+    @Transactional
+    public void delete(Long id) {
+        if (!taskRepository.existsById(id)) {
+            throw new TaskNotFoundException("Task not found with id: " + id);
+        }
+        taskRepository.deleteById(id);
+    }
+}