Jungfraujoch/writer/FileWriter.h

// SPDX-FileCopyrightText: 2024 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
// SPDX-License-Identifier: GPL-3.0-only

#pragma once

#include <numeric>

#include "HDF5DataFile.h"
#include "../common/JFJochMessages.h"
#include "../common/ZMQWrappers.h"
#include "HDF5NXmx.h"
#include "CBFWriter.h"
#include <unordered_set>

class FileWriter {
    FileWriterFormat format = FileWriterFormat::NXmxLegacy;

    StartMessage start_message;
    std::unique_ptr<NXmx> master_file;
    std::vector<std::unique_ptr<HDF5DataFile> > files;
    std::vector<HDF5DataFileStatistics> stats;
    std::unique_ptr<ZMQSocket> finalized_file_socket;
    std::unique_ptr<CBFWriter> cbf_writer;

    std::unordered_set<uint64_t> closed_files;
    constexpr static uint64_t close_file_lag_images = 1000;
    constexpr static uint64_t default_images_per_file = 1000;
    void CreateHDF5MasterFile(const StartMessage& msg);
    void AddStats(const std::optional<HDF5DataFileStatistics>& s);
    void CloseFile(uint64_t file_number);
    void CloseOldFiles(uint64_t current_image_number);

public:
    explicit FileWriter(const StartMessage &request);
    void Write(const DataMessage& msg);
    void WriteTIFF(const DataMessage& msg);
    void WriteHDF5(const DataMessage& msg);
    void WriteHDF5(const CompressedImage& msg);
    void WriteHDF5(const EndMessage& msg);
    std::vector<HDF5DataFileStatistics> Finalize();
    void SetupFinalizedFileSocket(const std::string &addr);
    std::optional<std::string> GetZMQAddr();
};