/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 *
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package org.apache.skywalking.oap.server.storage.plugin.banyandb.measure;

import com.google.common.collect.ImmutableSet;
import org.apache.skywalking.banyandb.v1.client.AbstractQuery;
import org.apache.skywalking.banyandb.v1.client.DataPoint;
import org.apache.skywalking.banyandb.v1.client.MeasureQuery;
import org.apache.skywalking.banyandb.v1.client.MeasureQueryResponse;
import org.apache.skywalking.oap.server.core.profiling.ebpf.storage.EBPFProfilingScheduleRecord;
import org.apache.skywalking.oap.server.core.query.type.EBPFProfilingSchedule;
import org.apache.skywalking.oap.server.core.storage.profiling.ebpf.IEBPFProfilingScheduleDAO;
import org.apache.skywalking.oap.server.storage.plugin.banyandb.BanyanDBStorageClient;
import org.apache.skywalking.oap.server.storage.plugin.banyandb.stream.AbstractBanyanDBDAO;

import java.io.IOException;
import java.util.Collections;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;

public class BanyanDBEBPFProfilingScheduleQueryDAO extends AbstractBanyanDBDAO implements IEBPFProfilingScheduleDAO {
    private static final Set<String> TAGS = ImmutableSet.of(EBPFProfilingScheduleRecord.START_TIME,
            EBPFProfilingScheduleRecord.TASK_ID,
            EBPFProfilingScheduleRecord.PROCESS_ID,
            EBPFProfilingScheduleRecord.END_TIME);

    public BanyanDBEBPFProfilingScheduleQueryDAO(BanyanDBStorageClient client) {
        super(client);
    }

    @Override
    public List<EBPFProfilingSchedule> querySchedules(String taskId) throws IOException {
        MeasureQueryResponse resp = query(EBPFProfilingScheduleRecord.INDEX_NAME,
                TAGS,
                Collections.emptySet(), new QueryBuilder<MeasureQuery>() {
                    @Override
                    protected void apply(MeasureQuery query) {
                        query.and(eq(EBPFProfilingScheduleRecord.TASK_ID, taskId));
                        query.setOrderBy(new AbstractQuery.OrderBy(EBPFProfilingScheduleRecord.START_TIME, AbstractQuery.Sort.DESC));
                    }
                });

        return resp.getDataPoints().stream().map(this::buildEBPFProfilingSchedule).collect(Collectors.toList());
    }

    private EBPFProfilingSchedule buildEBPFProfilingSchedule(DataPoint dataPoint) {
        final EBPFProfilingSchedule schedule = new EBPFProfilingSchedule();
        schedule.setScheduleId(dataPoint.getId());
        schedule.setTaskId(dataPoint.getTagValue(EBPFProfilingScheduleRecord.TASK_ID));
        schedule.setProcessId(dataPoint.getTagValue(EBPFProfilingScheduleRecord.PROCESS_ID));
        schedule.setStartTime(((Number) dataPoint.getTagValue(EBPFProfilingScheduleRecord.START_TIME)).longValue());
        schedule.setEndTime(((Number) dataPoint.getTagValue(EBPFProfilingScheduleRecord.END_TIME)).longValue());
        return schedule;
    }
}
