smartbotic-microbit/cmake/Dependencies.cmake

# Smartbotic-MicroBit External Dependencies
# Fetch non-apt packages via CMake FetchContent

include(FetchContent)

# cpp-httplib (HTTP server and client)
# Header-only HTTP/HTTPS library
FetchContent_Declare(
    httplib
    GIT_REPOSITORY https://github.com/yhirose/cpp-httplib.git
    GIT_TAG        v0.18.3
)

# libbcrypt (Password hashing)
FetchContent_Declare(
    libbcrypt
    GIT_REPOSITORY https://github.com/trusch/libbcrypt.git
    GIT_TAG        master
    GIT_SHALLOW    TRUE
)

# nlohmann_json (if not found on system)
if(NOT nlohmann_json_FOUND)
    message(STATUS "Fetching nlohmann_json...")
    FetchContent_Declare(
        nlohmann_json
        GIT_REPOSITORY https://github.com/nlohmann/json.git
        GIT_TAG        v3.11.3
        GIT_SHALLOW    TRUE
        OVERRIDE_FIND_PACKAGE
    )
    set(JSON_BuildTests OFF CACHE BOOL "" FORCE)
    FetchContent_MakeAvailable(nlohmann_json)
endif()

# Make httplib available (header-only)
message(STATUS "Fetching cpp-httplib...")
set(HTTPLIB_REQUIRE_OPENSSL ON CACHE BOOL "" FORCE)
set(HTTPLIB_USE_OPENSSL_IF_AVAILABLE ON CACHE BOOL "" FORCE)
FetchContent_MakeAvailable(httplib)

# Make libbcrypt available (manual build due to outdated CMakeLists.txt)
message(STATUS "Fetching libbcrypt...")
FetchContent_GetProperties(libbcrypt)
if(NOT libbcrypt_POPULATED)
    FetchContent_Populate(libbcrypt)
    add_library(bcrypt STATIC
        ${libbcrypt_SOURCE_DIR}/src/bcrypt.c
        ${libbcrypt_SOURCE_DIR}/src/crypt_blowfish.c
        ${libbcrypt_SOURCE_DIR}/src/crypt_gensalt.c
        ${libbcrypt_SOURCE_DIR}/src/wrapper.c
    )
    target_include_directories(bcrypt PUBLIC
        ${libbcrypt_SOURCE_DIR}/include
        ${libbcrypt_SOURCE_DIR}/include/bcrypt
    )
    target_compile_options(bcrypt PRIVATE -w)
    set_target_properties(bcrypt PROPERTIES INTERPROCEDURAL_OPTIMIZATION OFF)
endif()