cmake_minimum_required(VERSION 3.20)
project(CommonwealthOnlineGnsServerBridge LANGUAGES C CXX)

set(CMAKE_CXX_STANDARD 23)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
set(CMAKE_POSITION_INDEPENDENT_CODE ON)

set(GNS_SOURCE_DIR "" CACHE PATH "Path to the pinned GameNetworkingSockets source tree")
if(NOT EXISTS "${GNS_SOURCE_DIR}/CMakeLists.txt")
    message(FATAL_ERROR "GNS_SOURCE_DIR must point to an initialized GameNetworkingSockets source tree")
endif()

set(BUILD_STATIC_LIB OFF CACHE BOOL "" FORCE)
set(BUILD_SHARED_LIB ON CACHE BOOL "" FORCE)
set(BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
set(BUILD_TESTS OFF CACHE BOOL "" FORCE)
set(BUILD_TOOLS OFF CACHE BOOL "" FORCE)
set(ENABLE_ICE OFF CACHE BOOL "" FORCE)
set(USE_STEAMWEBRTC OFF CACHE BOOL "" FORCE)
set(USE_CRYPTO OpenSSL CACHE STRING "" FORCE)
set(USE_CRYPTO25519 OpenSSL CACHE STRING "" FORCE)

add_subdirectory("${GNS_SOURCE_DIR}" "${CMAKE_BINARY_DIR}/gns")

add_library(commonwealth_online_gns_bridge SHARED co_gns_server_bridge.cpp)
target_include_directories(commonwealth_online_gns_bridge PUBLIC "${CMAKE_CURRENT_LIST_DIR}")
target_compile_definitions(commonwealth_online_gns_bridge PRIVATE CO_GNS_BRIDGE_BUILD)
# steamnetworkingtypes.h declares several address helpers inline, while the
# standalone definitions live in isteamnetworkingutils.h. Make that public GNS
# utility header explicit for this translation unit instead of suppressing the
# undefined-inline diagnostic.
target_compile_options(commonwealth_online_gns_bridge PRIVATE
    -Wall
    -Wextra
    -Werror
    -include
    steam/isteamnetworkingutils.h
)
target_link_libraries(commonwealth_online_gns_bridge PRIVATE GameNetworkingSockets::shared)
set_target_properties(commonwealth_online_gns_bridge PROPERTIES OUTPUT_NAME "commonwealth_online_gns_bridge")

add_executable(co-gns-server-bridge-tests test_co_gns_server_bridge.cpp)
target_compile_options(co-gns-server-bridge-tests PRIVATE -Wall -Wextra -Werror -UNDEBUG)
target_link_libraries(co-gns-server-bridge-tests PRIVATE
    commonwealth_online_gns_bridge
    GameNetworkingSockets::shared
)

enable_testing()
add_test(NAME co-gns-server-bridge COMMAND co-gns-server-bridge-tests)