// Copyright 2026 The Bazel Authors. All rights reserved.
//
// 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 com.google.devtools.build.lib.skyframe.serialization.analysis;

import com.google.common.collect.ImmutableList;
import com.google.devtools.build.lib.buildeventstream.BuildEvent;
import com.google.devtools.build.lib.buildeventstream.BuildEventContext;
import com.google.devtools.build.lib.buildeventstream.BuildEventIdUtil;
import com.google.devtools.build.lib.buildeventstream.BuildEventStreamProtos;
import com.google.devtools.build.lib.buildeventstream.BuildEventStreamProtos.BuildEventId;
import com.google.devtools.build.lib.buildeventstream.GenericBuildEvent;
import com.google.devtools.build.lib.skyframe.serialization.FrontierNodeVersion;
import com.google.devtools.build.lib.skyframe.serialization.PackedFingerprint;
import com.google.devtools.build.skyframe.SkyKey;

/** A BEP event signaled when a SkyValue is uploaded to Skycache. */
final class SkyValueUploadedEvent implements BuildEvent {
  private final SkyKey key;
  private final FrontierNodeVersion version;
  private final PackedFingerprint fingerprint;

  SkyValueUploadedEvent(SkyKey key, FrontierNodeVersion version, PackedFingerprint fingerprint) {
    this.key = key;
    this.version = version;
    this.fingerprint = fingerprint;
  }

  public SkyKey getKey() {
    return key;
  }

  public FrontierNodeVersion getVersion() {
    return version;
  }

  public PackedFingerprint getFingerprint() {
    return fingerprint;
  }
  @Override
  public BuildEventId getEventId() {
    return BuildEventIdUtil.skyValueUploadedId(fingerprint.toHex());
  }

  @Override
  public ImmutableList<BuildEventId> getChildrenEvents() {
    return ImmutableList.of();
  }

  @Override
  public BuildEventStreamProtos.BuildEvent asStreamProto(BuildEventContext converters) {
    BuildEventStreamProtos.SkyValueUploaded payload =
        BuildEventStreamProtos.SkyValueUploaded.newBuilder()
            .setKey(key.toString())
            .setVersion(version.toString())
            .setFingerprint(fingerprint.toHex())
            .build();

    return GenericBuildEvent.protoChaining(this).setSkyvalueUploaded(payload).build();
  }
}
