content: /*
   * Copyright 2025 the original author or authors.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      https://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package io.agentscope.runtime.engine.memory.persistence.memory.repository;
  
  import io.agentscope.runtime.engine.memory.persistence.memory.entity.SessionEntity;
  import org.springframework.data.domain.Page;
  import org.springframework.data.domain.Pageable;
  import org.springframework.data.jpa.repository.JpaRepository;
  import org.springframework.data.jpa.repository.Query;
  import org.springframework.stereotype.Repository;
  
  import java.util.List;
  import java.util.Optional;
  
  /**
   * Session data access interface
   */
  @Repository
  public interface SessionRepository extends JpaRepository<SessionEntity, Long> {
      
      /**
       * Find session by session ID
       */
      Optional<SessionEntity> findBySessionId(String sessionId);
      
      /**
       * Find sessions by user ID
       */
      List<SessionEntity> findByUserId(String userId);
  
      /**
       * Find session by user ID and session ID
       */
      Optional<SessionEntity> findByUserIdAndSessionId(String userId, String sessionId);
      
      /**
       * Delete sessions by user ID
       */
      void deleteByUserId(String userId);
      
      /**
       * Delete session by session ID
       */
      void deleteBySessionId(String sessionId);
      
      /**
       * Get all sessions for user
       */
      List<SessionEntity> findByUserIdOrderByLastActivityDesc(String userId);
      
      /**
       * Get all sessions
       */
      @Query("SELECT s FROM SessionEntity s ORDER BY s.lastActivity DESC")
      List<SessionEntity> findAllOrderByLastActivityDesc();
      
      /**
       * Count sessions by user ID
       */
      long countByUserId(String userId);
      
      /**
       * Check if session exists
       */
      boolean existsBySessionId(String sessionId);
      
      /**
       * Check if user and session exist
       */
      boolean existsByUserIdAndSessionId(String userId, String sessionId);
  }
  