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src/main/java/com/pmu/betengine/service/ReunionService.java

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+package com.pmu.betengine.service;
+
+import com.pmu.betengine.model.Reunion;
+import com.pmu.betengine.model.dto.ReunionDTO;
+import com.pmu.betengine.model.dto.ReunionRequestDTO;
+import com.pmu.betengine.repository.ReunionRepository;
+import org.modelmapper.ModelMapper;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Service
+@Transactional
+public class ReunionService {
+
+    private final ReunionRepository reunionRepository;
+    private final ModelMapper modelMapper;
+
+    public ReunionService(ReunionRepository reunionRepository, ModelMapper modelMapper) {
+        this.reunionRepository = reunionRepository;
+        this.modelMapper = modelMapper;
+    }
+
+    public List<ReunionDTO> getAllReunions() {
+        return reunionRepository.findAll()
+                .stream()
+                .map(this::convertToDTO)
+                .collect(Collectors.toList());
+    }
+
+    public ReunionDTO getReunionById(Long id) {
+        Reunion reunion = reunionRepository.findById(id)
+                .orElseThrow(() -> new RuntimeException("Reunion non trouvée"));
+        return convertToDTO(reunion);
+    }
+
+    public ReunionDTO createReunion(ReunionRequestDTO requestDTO) {
+        if (reunionRepository.existsByCode(requestDTO.getCode())) {
+            throw new RuntimeException("Code déjà existant");
+        }
+
+        Reunion reunion = convertToEntity(requestDTO);
+        reunion.setCreatedAt(LocalDateTime.now());
+        Reunion saved = reunionRepository.save(reunion);
+        return convertToDTO(saved);
+    }
+
+    public ReunionDTO updateReunion(Long id, ReunionRequestDTO requestDTO) {
+        Reunion existing = reunionRepository.findById(id)
+                .orElseThrow(() -> new RuntimeException("Reunion non trouvée"));
+
+        modelMapper.map(requestDTO, existing);
+        existing.setUpdatedAt(LocalDateTime.now());
+        return convertToDTO(reunionRepository.save(existing));
+    }
+
+    public void deleteReunion(Long id) {
+        reunionRepository.deleteById(id);
+    }
+
+    private ReunionDTO convertToDTO(Reunion reunion) {
+        return modelMapper.map(reunion, ReunionDTO.class);
+    }
+
+    private Reunion convertToEntity(ReunionRequestDTO dto) {
+        return modelMapper.map(dto, Reunion.class);
+    }
+}