cmake_minimum_required(VERSION 3.24)
project(sacred_re LANGUAGES C CXX)

# sacred.exe is a 32-bit process; everything we inject into it must be 32-bit too.
if(NOT CMAKE_SIZEOF_VOID_P EQUAL 4)
    message(FATAL_ERROR "sacred_re must be built for 32-bit x86 (use the 'x86-*' presets / an x86 MSVC environment).")
endif()
if(NOT MSVC)
    message(FATAL_ERROR "sacred_re requires MSVC (the game's C++ ABI is MSVC's).")
endif()

set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
# Static CRT: no VC++ redistributable needed next to the game.
set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")

add_compile_definitions(WIN32_LEAN_AND_MEAN NOMINMAX _CRT_SECURE_NO_WARNINGS)

include(cmake/Detours.cmake)
include(cmake/Json.cmake)

set(SACRED_RE_CXX_FLAGS /W4 /permissive- /utf-8)

# --- sacred_re.dll: injected into sacred.exe, installs the hooks -------------
add_library(sacred_re SHARED
    src/re/dllmain.cpp
    src/re/hook.cpp
    src/re/log.cpp
    src/re/config.cpp
    src/re/patch.cpp
    src/re/sacred_re.def
    src/game/engine/log.cpp
    src/game/engine/cmdline.cpp
    src/mods/borderless.cpp
    src/mods/widescreen.cpp
    src/mods/hud.cpp
    src/mods/wasd.cpp
    src/mods/skillkeys.cpp
    src/mods/input.cpp
    src/mods/skillslots.cpp
    src/mods/inventory_save.cpp
    src/mods/skillbar.cpp
)
target_include_directories(sacred_re PRIVATE src)
target_compile_options(sacred_re PRIVATE ${SACRED_RE_CXX_FLAGS})
target_link_libraries(sacred_re PRIVATE detours nlohmann_json::nlohmann_json)

# --- sacred_re.exe: launches sacred.exe with sacred_re.dll injected ----------
add_executable(sacred_re_launcher WIN32 src/launcher/main.cpp)
set_target_properties(sacred_re_launcher PROPERTIES OUTPUT_NAME sacred_re)
target_compile_options(sacred_re_launcher PRIVATE ${SACRED_RE_CXX_FLAGS})
target_link_libraries(sacred_re_launcher PRIVATE detours)
add_dependencies(sacred_re_launcher sacred_re)