cmake_minimum_required(VERSION 3.28)
project(Prog3B)

# Set C++ standard to C++20
set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

# Generate compile_commands.json
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

# Set the default build type if not specified
if(NOT CMAKE_BUILD_TYPE)
    set(CMAKE_BUILD_TYPE Release CACHE STRING "Build type" FORCE)
endif()

# --- Sources & Include directories ---
# Automatically include all .cpp files in the src/ folder
file(GLOB SRC_FILES "src/*.cpp")

# Include directories for header files
set(INCLUDE_DIRS
        ${CMAKE_CURRENT_LIST_DIR}/includes
        ${CMAKE_CURRENT_LIST_DIR}/raylib
)

# Create the executable target
add_executable(${PROJECT_NAME} ${SRC_FILES})

# Add include directories to the target
target_include_directories(${PROJECT_NAME} PRIVATE ${INCLUDE_DIRS})


# --- Automatic platform detection ---
if (WIN32)
    # Windows build
    message(STATUS "Building for Windows...")
    target_link_libraries(${PROJECT_NAME} PRIVATE
            ${CMAKE_CURRENT_LIST_DIR}/windows/libgamematrix.a
            ${CMAKE_CURRENT_LIST_DIR}/windows/libraylib.a
            winmm  # Windows multimedia library required by Raylib
    )

elseif(APPLE)
    # macOS build
    message(STATUS "Building for macOS...")
    if(CMAKE_SYSTEM_PROCESSOR MATCHES "arm64")
        set(OS_FOLDER "mac_arm")
    else()
        set(OS_FOLDER "mac_x86")
    endif()
    target_link_libraries(${PROJECT_NAME} PRIVATE
            ${CMAKE_CURRENT_LIST_DIR}/${OS_FOLDER}/libgamematrix.a
            ${CMAKE_CURRENT_LIST_DIR}/${OS_FOLDER}/libraylib.a
            "-framework IOKit"   # For device input
            "-framework Cocoa"   # For windows/UI
            "-framework OpenGL"  # For rendering
    )

elseif(UNIX)
    # Linux build
    message(STATUS "Building for Linux...")
    target_link_libraries(${PROJECT_NAME} PRIVATE
            ${CMAKE_CURRENT_LIST_DIR}/linux/libgamematrix.a
            ${CMAKE_CURRENT_LIST_DIR}/linux/libraylib.a
            m pthread dl  # Standard Linux libraries
    )

else()
    # Unsupported OS
    message(FATAL_ERROR "Unsupported operating system.")
endif()