# - Try to find Picotls

if (PICOQUIC_FETCH_PTLS)
    set(PTLS_CORE_LIBRARY picotls-core)
    set(PTLS_OPENSSL_LIBRARY picotls-openssl)
    set(PTLS_MINICRYPTO_LIBRARY picotls-minicrypto)
    if(WITH_FUSION)
        set(PTLS_FUSION_LIBRARY picotls-fusion)
        set(PTLS_WITH_FUSION_DEFAULT ON)
        set(PTLS_LIBRARIES ${PTLS_CORE_LIBRARY} ${PTLS_OPENSSL_LIBRARY} ${PTLS_FUSION_LIBRARY} ${PTLS_MINICRYPTO_LIBRARY})
    else()
        set(PTLS_WITH_FUSION_DEFAULT OFF)
        set(PTLS_LIBRARIES ${PTLS_CORE_LIBRARY} ${PTLS_OPENSSL_LIBRARY}  ${PTLS_MINICRYPTO_LIBRARY})
        unset(PTLS_FUSION_LIBRARY)
    endif()
    set(PTLS_INCLUDE_DIRS ${picotls_SOURCE_DIR}/include)
else(PICOQUIC_FETCH_PTLS)
    find_path(PTLS_INCLUDE_DIR
        NAMES picotls/openssl.h
        HINTS ${PTLS_PREFIX}/include/picotls
            ${CMAKE_SOURCE_DIR}/../picotls/include
            ${CMAKE_BINARY_DIR}/../picotls/include
            ../picotls/include/ )

    set(PTLS_HINTS ${PTLS_PREFIX}/lib ${CMAKE_BINARY_DIR}/../picotls ../picotls)

    find_library(PTLS_CORE_LIBRARY picotls-core HINTS ${PTLS_HINTS})
    find_library(PTLS_OPENSSL_LIBRARY picotls-openssl HINTS ${PTLS_HINTS})
    find_library(PTLS_FUSION_LIBRARY picotls-fusion HINTS ${PTLS_HINTS})
    find_library(PTLS_MINICRYPTO_LIBRARY picotls-minicrypto HINTS ${PTLS_HINTS})

    if(NOT PTLS_FUSION_LIBRARY)
        include(FindPackageHandleStandardArgs)
        # handle the QUIETLY and REQUIRED arguments and set PTLS_FOUND to TRUE
        # if all listed variables are TRUE
        find_package_handle_standard_args(PTLS REQUIRED_VARS
            PTLS_CORE_LIBRARY
            PTLS_OPENSSL_LIBRARY
            PTLS_MINICRYPTO_LIBRARY
            PTLS_INCLUDE_DIR)
        if(PTLS_FOUND)
            set(PTLS_LIBRARIES ${PTLS_CORE_LIBRARY} ${PTLS_OPENSSL_LIBRARY} ${PTLS_MINICRYPTO_LIBRARY})
            set(PTLS_INCLUDE_DIRS ${PTLS_INCLUDE_DIR})
            set(PTLS_WITH_FUSION_DEFAULT OFF)
        endif()
    else()
        include(FindPackageHandleStandardArgs)
        # handle the QUIETLY and REQUIRED arguments and set PTLS_FOUND to TRUE
        # if all listed variables are TRUE
        find_package_handle_standard_args(PTLS REQUIRED_VARS
            PTLS_CORE_LIBRARY
            PTLS_OPENSSL_LIBRARY
            PTLS_FUSION_LIBRARY
            PTLS_MINICRYPTO_LIBRARY
            PTLS_INCLUDE_DIR)

        if(PTLS_FOUND)
            set(PTLS_LIBRARIES ${PTLS_CORE_LIBRARY} ${PTLS_OPENSSL_LIBRARY} ${PTLS_FUSION_LIBRARY} ${PTLS_MINICRYPTO_LIBRARY})
            set(PTLS_INCLUDE_DIRS ${PTLS_INCLUDE_DIR})
            set(PTLS_WITH_FUSION_DEFAULT ON)
        endif()
    endif()
endif(PICOQUIC_FETCH_PTLS)

mark_as_advanced(PTLS_LIBRARIES PTLS_INCLUDE_DIRS)