/*
 * 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.
 */

#pragma once

#include <functional>
#include <memory>
#include <optional>
#include <vector>

#include "paimon/core/manifest/index_manifest_entry.h"
#include "paimon/core/manifest/manifest_entry.h"
#include "paimon/core/snapshot.h"
#include "paimon/result.h"
#include "paimon/status.h"

namespace paimon {

struct CommitChanges {
    CommitChanges() = default;

    CommitChanges(std::vector<ManifestEntry> delta, std::vector<ManifestEntry> changelog,
                  std::vector<IndexManifestEntry> index)
        : delta_files(std::move(delta)),
          changelog_files(std::move(changelog)),
          index_entries(std::move(index)) {}

    std::vector<ManifestEntry> delta_files;
    std::vector<ManifestEntry> changelog_files;
    std::vector<IndexManifestEntry> index_entries;
};

class CommitChangesProvider {
 public:
    virtual ~CommitChangesProvider() = default;

    static std::shared_ptr<CommitChangesProvider> Provider(
        std::vector<ManifestEntry> delta_files, std::vector<ManifestEntry> changelog_files,
        std::vector<IndexManifestEntry> index_entries);

    virtual Result<std::shared_ptr<CommitChanges>> Provide(
        const std::optional<Snapshot>& latest_snapshot) const = 0;
};

}  // namespace paimon
