/*
 * Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *          http://license.coscl.org.cn/MulanPSL2
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */

// ResultPartitionManager.h
#ifndef OMNISTREAM_RESULTPARTITIONMANAGER_H
#define OMNISTREAM_RESULTPARTITIONMANAGER_H

#include <memory>
#include <unordered_map>
#include <vector>
#include "ResultPartition.h"
#include "ResultSubpartitionView.h"
#include "BufferAvailabilityListener.h"

#include "ResultPartitionProvider.h"
// check
namespace omnistream {

class ResultPartitionManager : public ResultPartitionProvider {
public:
    ResultPartitionManager();
    ~ResultPartitionManager() override;

    void registerResultPartition(std::shared_ptr<ResultPartition> partition);

    std::shared_ptr<ResultSubpartitionView> createSubpartitionView(
        const ResultPartitionIDPOD& partitionId,
        int subpartitionIndex,
        BufferAvailabilityListener* availabilityListener) override;

    void releasePartition(const ResultPartitionIDPOD& partitionId, std::optional<std::exception_ptr> cause);

    void shutdown();

    void onConsumedPartition(std::shared_ptr<ResultPartition> partition);

    std::vector<ResultPartitionIDPOD> getUnreleasedPartitions();

    std::string toString();

private:
    std::unordered_map<ResultPartitionIDPOD, std::shared_ptr<ResultPartition>> registeredPartitions;
    bool isShutdown;
    std::recursive_mutex mutex_;
};

} // namespace omnistream

#endif // OMNISTREAM_RESULTPARTITIONMANAGER_H