/*
 * Copyright © 2020 Cask Data, 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.
 */

package io.cdap.cdap.internal.app.store;

import com.google.inject.Inject;
import io.cdap.cdap.common.NotFoundException;
import io.cdap.cdap.logging.gateway.handlers.ProgramRunRecordFetcher;
import io.cdap.cdap.proto.id.ProgramReference;
import io.cdap.cdap.proto.id.ProgramRunId;
import io.cdap.cdap.spi.data.transaction.TransactionRunner;
import io.cdap.cdap.spi.data.transaction.TransactionRunners;
import java.io.IOException;
import java.util.Optional;

/**
 * A {@link ProgramRunRecordFetcher} that uses {@link AppMetadataStore} for fetching run records
 * directly.
 */
public class StoreProgramRunRecordFetcher implements ProgramRunRecordFetcher {

  private final TransactionRunner txRunner;

  @Inject
  StoreProgramRunRecordFetcher(TransactionRunner txRunner) {
    this.txRunner = txRunner;
  }

  @Override
  public RunRecordDetail getRunRecordMeta(ProgramRunId runId)
      throws IOException, NotFoundException {
    return Optional.ofNullable(TransactionRunners.run(txRunner, context -> {
      return AppMetadataStore.create(context).getRun(runId);
    }, IOException.class)).orElseThrow(() -> new NotFoundException(runId));
  }

  @Override
  public RunRecordDetail getRunRecordMeta(ProgramReference programRef, String runId)
      throws IOException, NotFoundException {
    return Optional.ofNullable(TransactionRunners.run(txRunner, context -> {
          return AppMetadataStore.create(context).getRun(programRef, runId);
        }, IOException.class))
        .orElseThrow(
            () -> new NotFoundException(
                String.format("No run record found for program %s and runID: %s", programRef,
                    runId)));
  }
}
