/**********************************************************************

 * Project:  CPL - Common Portability Library

 * Purpose:  Microsoft Azure Storage Blob routines

 * Author:   Even Rouault <even.rouault at spatialys.com>

 *

 **********************************************************************

 * Copyright (c) 2017, Even Rouault <even.rouault at spatialys.com>

 *

 * SPDX-License-Identifier: MIT

 ****************************************************************************/

#ifndef CPL_AZURE_INCLUDED_H

#define CPL_AZURE_INCLUDED_H

#ifndef DOXYGEN_SKIP

#ifdef HAVE_CURL

#include <curl/curl.h>

#include "cpl_http.h"

#include "cpl_aws.h"

#include <map>

class VSIAzureBlobHandleHelper final : public IVSIS3LikeHandleHelper

{

    std::string m_osPathForOption;

    std::string m_osURL;

    std::string m_osEndpoint;

    std::string m_osBucket;

    std::string m_osObjectKey;

    std::string m_osStorageAccount;

    std::string m_osStorageKey;

    std::string m_osSAS;

    std::string m_osAccessToken;

    bool m_bFromManagedIdentities;

    bool m_bIncludeMSVersion = true;

    enum class Service

    {

        SERVICE_BLOB,

        SERVICE_ADLS,

    };

    static bool GetConfiguration(const std::string &osPathForOption,

                                 CSLConstList papszOptions, Service eService,

                                 bool &bUseHTTPS, std::string &osEndpoint,

                                 std::string &osStorageAccount,

                                 std::string &osStorageKey, std::string &osSAS,

                                 std::string &osAccessToken,

                                 bool &bFromManagedIdentities);

    static std::string BuildURL(const std::string &osEndpoint,

                                const std::string &osBucket,

                                const std::string &osObjectKey,

                                const std::string &osSAS);

    void RebuildURL() override;

  public:

    VSIAzureBlobHandleHelper(

        const std::string &osPathForOption, const std::string &osEndpoint,

        const std::string &osBucket, const std::string &osObjectKey,

        const std::string &osStorageAccount, const std::string &osStorageKey,

        const std::string &osSAS, const std::string &osAccessToken,

        bool bFromManagedIdentities);

    ~VSIAzureBlobHandleHelper() override;

    static VSIAzureBlobHandleHelper *

    BuildFromURI(const char *pszURI, const char *pszFSPrefix,

                 const char *pszURIForPathSpecificOption = nullptr,

                 CSLConstList papszOptions = nullptr);

    void SetIncludeMSVersion(bool bInclude)

    {

        m_bIncludeMSVersion = bInclude;

    }

    struct curl_slist *GetCurlHeaders(const std::string &osVerbosVerb,

                                      struct curl_slist *psHeaders,

                                      const void *pabyDataContent = nullptr,

                                      size_t nBytesContent = 0) const override;

    bool CanRestartOnError(const char *, const char *pszHeaders,

                           bool bSetError) override;

    const std::string &GetURL() const override

    {

        return m_osURL;

    }

    std::string GetSignedURL(CSLConstList papszOptions);

    static void ClearCache();

    std::string GetSASQueryString() const;

    const std::string &GetStorageAccount() const

    {

        return m_osStorageAccount;

    }

    const std::string &GetBucket() const

    {

        return m_osBucket;

    }

    static std::string GetSAS(const char *pszFilename);

    static bool IsNoSignRequest(const char *pszFilename);

};

namespace cpl

{

int GetAzureAppendBufferSize();

}

#endif /* HAVE_CURL */

#endif /* #ifndef DOXYGEN_SKIP */

#endif /* CPL_AZURE_INCLUDED_H */