package ca.uhn.fhir.jpa.migrate.entity;

/*-
 * #%L
 * HAPI FHIR Server - SQL Migration
 * %%
 * Copyright (C) 2014 - 2023 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.migrate.taskdef.BaseTask;
import ca.uhn.fhir.util.VersionEnum;
import org.springframework.jdbc.core.PreparedStatementSetter;
import org.springframework.jdbc.core.RowMapper;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.SequenceGenerator;
import java.util.Date;

// Note even though we are using javax.persistence annotations here, we are managing these records outside of jpa
// so these annotations are for informational purposes only
@Entity
public class HapiMigrationEntity {
        public static final int VERSION_MAX_SIZE = 50;
        public static final int DESCRIPTION_MAX_SIZE = 200;
        public static final int TYPE_MAX_SIZE = 20;
        public static final int SCRIPT_MAX_SIZE = 1000;
        public static final int INSTALLED_BY_MAX_SIZE = 100;
        public static final int CREATE_TABLE_PID = -1;
        public static final String INITIAL_RECORD_DESCRIPTION = "<< HAPI FHIR Schema History table created >>";
        public static final String INITIAL_RECORD_SCRIPT = "HAPI FHIR";
        @Id
        @SequenceGenerator(name = "SEQ_FLY_HFJ_MIGRATION", sequenceName = "SEQ_FLY_HFJ_MIGRATION")
        @GeneratedValue(strategy = GenerationType.AUTO, generator = "SEQ_FLY_HFJ_MIGRATION")
        @Column(name = "INSTALLED_RANK")
        private Integer myPid;

        @Column(name = "VERSION", length = VERSION_MAX_SIZE)
        private String myVersion;

        @Column(name = "DESCRIPTION", length = DESCRIPTION_MAX_SIZE)
        private String myDescription;

        @Column(name = "TYPE", length = TYPE_MAX_SIZE)
        private String myType;

        @Column(name = "SCRIPT", length = SCRIPT_MAX_SIZE)
        private String myScript;

        @Column(name = "CHECKSUM")
        private Integer myChecksum;

        @Column(name = "INSTALLED_BY", length = INSTALLED_BY_MAX_SIZE)
        private String myInstalledBy;

        @Column(name = "INSTALLED_ON")
        private Date myInstalledOn;

        @Column(name = "EXECUTION_TIME")
        private Integer myExecutionTime;

        @Column(name = "SUCCESS")
        private Boolean mySuccess;

        public static HapiMigrationEntity tableCreatedRecord() {
                HapiMigrationEntity retVal = new HapiMigrationEntity();
                retVal.setPid(CREATE_TABLE_PID);
                retVal.setDescription(INITIAL_RECORD_DESCRIPTION);
                retVal.setType("TABLE");
                retVal.setScript(INITIAL_RECORD_SCRIPT);
                retVal.setInstalledBy(VersionEnum.latestVersion().name());
                retVal.setInstalledOn(new Date());
                retVal.setExecutionTime(0);
                retVal.setSuccess(true);
                return retVal;
        }

        public Integer getPid() {
                return myPid;
        }

        public void setPid(Integer thePid) {
                myPid = thePid;
        }

        public String getVersion() {
                return myVersion;
        }

        public void setVersion(String theVersion) {
                myVersion = theVersion;
        }

        public String getDescription() {
                return myDescription;
        }

        public void setDescription(String theDescription) {
                myDescription = theDescription;
        }

        public String getType() {
                return myType;
        }

        public void setType(String theType) {
                myType = theType;
        }

        public String getScript() {
                return myScript;
        }

        public void setScript(String theScript) {
                myScript = theScript;
        }

        public Integer getChecksum() {
                return myChecksum;
        }

        public void setChecksum(Integer theChecksum) {
                myChecksum = theChecksum;
        }

        public String getInstalledBy() {
                return myInstalledBy;
        }

        public void setInstalledBy(String theInstalledBy) {
                myInstalledBy = theInstalledBy;
        }

        public Date getInstalledOn() {
                return myInstalledOn;
        }

        public void setInstalledOn(Date theInstalledOn) {
                myInstalledOn = theInstalledOn;
        }

        public Integer getExecutionTime() {
                return myExecutionTime;
        }

        public void setExecutionTime(Integer theExecutionTime) {
                myExecutionTime = theExecutionTime;
        }

        public Boolean getSuccess() {
                return mySuccess;
        }

        public void setSuccess(Boolean theSuccess) {
                mySuccess = theSuccess;
        }

        public static HapiMigrationEntity fromBaseTask(BaseTask theTask) {
                HapiMigrationEntity retval = new HapiMigrationEntity();
                retval.setVersion(theTask.getMigrationVersion());
                retval.setDescription(theTask.getDescription());
                retval.setChecksum(theTask.hashCode());
                retval.setType("JDBC");
                return retval;
        }

        public static RowMapper<HapiMigrationEntity> rowMapper() {
                return (rs, rowNum) -> {
                        HapiMigrationEntity entity = new HapiMigrationEntity();
                        entity.setPid(rs.getInt(1));
                        entity.setVersion(rs.getString(2));
                        entity.setDescription(rs.getString(3));
                        entity.setType(rs.getString(4));
                        entity.setScript(rs.getString(5));
                        entity.setChecksum(rs.getInt(6));
                        entity.setInstalledBy(rs.getString(7));
                        entity.setInstalledOn(rs.getDate(8));
                        entity.setExecutionTime(rs.getInt(9));
                        entity.setSuccess(rs.getBoolean(10));
                        return entity;
                };
        }

        public PreparedStatementSetter asPreparedStatementSetter() {
                return ps -> {
                        ps.setInt(1, getPid());
                        ps.setString(2, getVersion());
                        ps.setString(3, getDescription());
                        ps.setString(4, getType());
                        ps.setString(5, getScript());
                        if (getChecksum() == null) {
                                ps.setNull(6, java.sql.Types.INTEGER);
                        } else {
                                ps.setInt(6, getChecksum());
                        }
                        ps.setString(7, getInstalledBy());
                        ps.setDate(8, getInstalledOn() != null ? new java.sql.Date(getInstalledOn().getTime()) : null);
                        ps.setInt(9, getExecutionTime());
                        ps.setBoolean(10, getSuccess());
                };
        }
}