cmake_minimum_required(VERSION 3.25)
project(Pong)

set(CMAKE_CXX_STANDARD 17)

# Option for enabling optimizations
option(ENABLE_OPTIMIZATIONS "Enable compiler optimizations" OFF)

# Use pkg-config
find_package(PkgConfig REQUIRED)

pkg_check_modules(SDL2 REQUIRED sdl2)
include_directories(${SDL2_INCLUDE_DIRS})
link_directories(${SDL2_LIBRARY_DIRS})

pkg_check_modules(SDL2_GFX REQUIRED SDL2_gfx)
include_directories(${SDL2_GFX_INCLUDE_DIRS})
link_directories(${SDL2_GFX_LIBRARY_DIRS})

pkg_check_modules(SDL2_TTF REQUIRED SDL2_ttf)
include_directories(${SDL2_TTF_INCLUDE_DIRS})
link_directories(${SDL2_TTF_LIBRARY_DIRS})

add_executable(Pong src/main.cpp
        src/SdlWrapper.cpp
        src/Game.cpp
        src/VisibleObjects/Ball.cpp
        src/Vec2d/Vec2d.cpp
        src/VisibleObjects/PlayerPaddle.cpp
        src/text/TextScreen.cpp
        src/defaultfont.cpp
        src/icon.cpp
        src/text/OptionScreen.cpp
        src/text/Score.cpp
        src/text/ScrollOptionScreen.cpp
)

target_link_libraries(Pong ${SDL2_LIBRARIES} ${SDL2_GFX_LIBRARIES} ${SDL2_TTF_LIBRARIES})

# Set compiler optimization flags
if (ENABLE_OPTIMIZATIONS)
    message(STATUS "Optimizations are enabled")
    set_target_properties(Pong PROPERTIES LINK_SEARCH_START_STATIC 1)
    set_target_properties(Pong PROPERTIES LINK_SEARCH_END_STATIC 1)
    set(CMAKE_FIND_LIBRARY_SUFFIXES ".a")

    # Apply static linking options only for GCC
    if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
        set(CMAKE_EXE_LINKER_FLAGS "-static-libgcc -static-libstdc++")
    endif()

    # Make sure that a terminal window doesn't launch under Windows.
    # We will still launch the terminal if we haven't compiled with optimizations.
    # This is useful for debugging
    if (WIN32)
        set_target_properties(Pong PROPERTIES WIN32_EXECUTABLE TRUE)
    endif ()

    if (MSVC)
        target_compile_options(Pong PRIVATE /O2)
    else ()
        target_compile_options(Pong PRIVATE -O3)
    endif ()
endif ()