package ca.uhn.fhir.jpa.dao.data;

/*
 * #%L
 * HAPI FHIR JPA Server
 * %%
 * Copyright (C) 2014 - 2021 Smile CDR, Inc.
 * %%
 * 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
 *
 *      http://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.
 * #L%
 */

import ca.uhn.fhir.jpa.entity.TermValueSet;
import ca.uhn.fhir.jpa.entity.TermValueSetPreExpansionStatusEnum;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Slice;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.query.Param;

import java.util.List;
import java.util.Optional;

public interface ITermValueSetDao extends JpaRepository<TermValueSet, Long> {

	@Query("SELECT vs FROM TermValueSet vs WHERE vs.myResourcePid = :resource_pid")
	Optional<TermValueSet> findByResourcePid(@Param("resource_pid") Long theResourcePid);

	// Keeping for backwards compatibility but recommend using findTermValueSetByUrlAndNullVersion instead.
	@Deprecated
	@Query("SELECT vs FROM TermValueSet vs WHERE vs.myUrl = :url")
	Optional<TermValueSet> findByUrl(@Param("url") String theUrl);

	@Query("SELECT vs FROM TermValueSet vs WHERE vs.myExpansionStatus = :expansion_status")
	Slice<TermValueSet> findByExpansionStatus(Pageable pageable, @Param("expansion_status") TermValueSetPreExpansionStatusEnum theExpansionStatus);

	@Query(value="SELECT vs FROM TermValueSet vs INNER JOIN ResourceTable r ON r.myId = vs.myResourcePid WHERE vs.myUrl = :url ORDER BY r.myUpdated DESC")
	List<TermValueSet> findTermValueSetByUrl(Pageable thePage, @Param("url") String theUrl);

	@Query("SELECT vs FROM TermValueSet vs WHERE vs.myUrl = :url AND vs.myVersion IS NULL")
	Optional<TermValueSet> findTermValueSetByUrlAndNullVersion(@Param("url") String theUrl);

	@Query("SELECT vs FROM TermValueSet vs WHERE vs.myUrl = :url AND vs.myVersion = :version")
	Optional<TermValueSet> findTermValueSetByUrlAndVersion(@Param("url") String theUrl, @Param("version") String theVersion);


}
