# - Try to find mbedTLS

# Once done this will define

#

#  MBEDTLS_FOUND - system has mbedTLS

#  MBEDTLS_INCLUDE_DIRS - the mbedTLS include directory

#  MBEDTLS_LIBRARIES - Link these to use mbedTLS

#  MBEDTLS_DEFINITIONS - Compiler switches required for using mbedTLS

#=============================================================================

#  Copyright (c) 2017 Sartura d.o.o.

#

#  Author: Juraj Vijtiuk <juraj.vijtiuk@sartura.hr>

#

#  Distributed under the OSI-approved BSD License (the "License");

#  see accompanying file Copyright.txt for details.

#

#  This software is distributed WITHOUT ANY WARRANTY; without even the

#  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

#  See the License for more information.

#=============================================================================

#

set(_MBEDTLS_ROOT_HINTS

    $ENV{MBEDTLS_ROOT_DIR}

    ${MBEDTLS_ROOT_DIR})

set(_MBEDTLS_ROOT_PATHS

    "$ENV{PROGRAMFILES}/libmbedtls")

set(_MBEDTLS_ROOT_HINTS_AND_PATHS

    HINTS ${_MBEDTLS_ROOT_HINTS}

    PATHS ${_MBEDTLS_ROOT_PATHS})

find_path(MBEDTLS_INCLUDE_DIR

    NAMES

        mbedtls/config.h

    HINTS

        ${_MBEDTLS_ROOT_HINTS_AND_PATHS}

    PATH_SUFFIXES

       include

)

find_library(MBEDTLS_SSL_LIBRARY

        NAMES

            mbedtls

        HINTS

            ${_MBEDTLS_ROOT_HINTS_AND_PATHS}

        PATH_SUFFIXES

            lib

)

find_library(MBEDTLS_CRYPTO_LIBRARY

        NAMES

            mbedcrypto

        HINTS

            ${_MBEDTLS_ROOT_HINTS_AND_PATHS}

        PATH_SUFFIXES

            lib

)

find_library(MBEDTLS_X509_LIBRARY

        NAMES

            mbedx509

        HINTS

            ${_MBEDTLS_ROOT_HINTS_AND_PATHS}

        PATH_SUFFIXES

            lib

)

set(MBEDTLS_LIBRARIES ${MBEDTLS_SSL_LIBRARY} ${MBEDTLS_CRYPTO_LIBRARY}

        ${MBEDTLS_X509_LIBRARY})

if (MBEDTLS_INCLUDE_DIR AND EXISTS "${MBEDTLS_INCLUDE_DIR}/mbedtls/version.h")

    file(STRINGS "${MBEDTLS_INCLUDE_DIR}/mbedtls/version.h" _mbedtls_version_str REGEX

            "^#[\t ]*define[\t ]+MBEDTLS_VERSION_STRING[\t ]+\"[0-9]+.[0-9]+.[0-9]+\"")

    string(REGEX REPLACE "^.*MBEDTLS_VERSION_STRING.*([0-9]+.[0-9]+.[0-9]+).*"

            "\\1" MBEDTLS_VERSION "${_mbedtls_version_str}")

endif ()

include(FindPackageHandleStandardArgs)

if (MBEDTLS_VERSION)

    find_package_handle_standard_args(MbedTLS

        REQUIRED_VARS

            MBEDTLS_INCLUDE_DIR

            MBEDTLS_LIBRARIES

        VERSION_VAR

            MBEDTLS_VERSION

        FAIL_MESSAGE

            "Could NOT find mbedTLS, try to set the path to mbedTLS root folder

            in the system variable MBEDTLS_ROOT_DIR"

    )

else (MBEDTLS_VERSION)

    find_package_handle_standard_args(MBedTLS

        "Could NOT find mbedTLS, try to set the path to mbedLS root folder in

        the system variable MBEDTLS_ROOT_DIR"

        MBEDTLS_INCLUDE_DIR

        MBEDTLS_LIBRARIES)

endif (MBEDTLS_VERSION)

# show the MBEDTLS_INCLUDE_DIRS and MBEDTLS_LIBRARIES variables only in the advanced view

mark_as_advanced(MBEDTLS_INCLUDE_DIR MBEDTLS_LIBRARIES)