Curl.h

// SPDX-License-Identifier: GPL-2.0-only
 
#pragma once
 
#include <chrono>
#include <filesystem>
#include <optional>
#include <ostream>
#include <string>
 
typedef void CURL;
 
namespace SlCurl {

class LibCurl {
public:
    LibCurl();
    ~LibCurl();

    bool downloadToStream(const std::string &url, const std::ostream &stream,
                  unsigned *HTTPErrorCode = nullptr);

    bool downloadToFile(const std::string &url, const std::filesystem::path &file,
                unsigned *HTTPErrorCode = nullptr);
 

    std::optional<std::string> download(const std::string &url,
                        unsigned *HTTPErrorCode = nullptr);

    static std::optional<std::string> singleDownload(const std::string &url,
                             unsigned *HTTPErrorCode = nullptr);

    static bool singleDownloadToFile(const std::string &url,
                     const std::filesystem::path &file,
                     unsigned *HTTPErrorCode = nullptr);

    static bool isDownloadNeeded(const std::filesystem::path &filePath, bool &fileAlreadyExists,
                     bool forceRefresh, const std::chrono::hours &hours);

    static std::filesystem::path fetchFileIfNeeded(const std::filesystem::path &filePath,
                               const std::string &url,
                               bool forceRefresh, bool ignoreErrors,
                               const std::chrono::hours &hours);

    static const std::string &lastError() { return m_lastError; }
private:
    CURL *handle;
    static thread_local std::string m_lastError;
};
 
}