# Configuration Implications and Platform Detection
# Processes build options and sets up platform-specific definitions

# Option hierarchy: ALL_OPTIONS → FINAL_STRIP → STRIP_ALL → SIZE_OPT
if(DEMO_ALL_OPTIONS)
    set(DEMO_SIZE_OPT ON)
    set(DEMO_STRIP_ALL ON)
    set(DEMO_BUILD_TESTS ON)
    set(DEMO_BUILD_TOOLS ON)
    # NOTE: DEMO_FINAL_STRIP is NOT included here (too dangerous for testing)
endif()

# FINAL_STRIP: Most aggressive stripping (removes ALL error checking)
# Implies STRIP_ALL (stricter superset)
if(DEMO_FINAL_STRIP)
    add_definitions(-DFINAL_STRIP)
    set(DEMO_STRIP_ALL ON)
    message(STATUS "FINAL_STRIP enabled - all error checking will be removed")
endif()

if(DEMO_STRIP_ALL)
    add_definitions(-DSTRIP_ALL)
    set(DEMO_SIZE_OPT ON)
endif()

if(DEMO_STRIP_EXTERNAL_LIBS)
    add_definitions(-DSTRIP_EXTERNAL_LIBS)
    # Audio: Use miniaudio null backend
    add_definitions(-DMA_ENABLE_ONLY_SPECIFIC_BACKENDS -DMA_ENABLE_NULL)
    message(STATUS "STRIP_EXTERNAL_LIBS enabled - binary will compile but NOT run (size measurement only)")
endif()

if(DEMO_ENABLE_COVERAGE AND APPLE)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} --coverage")
    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} --coverage")
    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} --coverage")
    # Coverage requires debug info
    set(CMAKE_BUILD_TYPE Debug)
endif()

if(DEMO_ENABLE_DEBUG_LOGS)
    add_definitions(-DDEBUG_LOG_ALL)
endif()

if(DEMO_HEADLESS)
    add_definitions(-DDEMO_HEADLESS)
    add_definitions(-DMA_ENABLE_ONLY_SPECIFIC_BACKENDS -DMA_ENABLE_NULL)
    message(STATUS "DEMO_HEADLESS enabled - functional stubs (audio works, no GPU)")
endif()

# Platform-specific definitions
if(APPLE)
    add_definitions(-DGLFW_EXPOSE_NATIVE_COCOA)
elseif(WIN32)
    add_definitions(-DGLFW_EXPOSE_NATIVE_WIN32)
elseif(UNIX)
    if(DEFINED CMAKE_USE_WAYLAND)
        add_definitions(-DGLFW_EXPOSE_NATIVE_WAYLAND)
    else()
        add_definitions(-DGLFW_EXPOSE_NATIVE_X11)
    endif()
endif()

# Configuration summary
message(STATUS "")
message(STATUS "Build Configuration:")
message(STATUS "  DEMO_SIZE_OPT:           ${DEMO_SIZE_OPT}")
message(STATUS "  DEMO_STRIP_ALL:          ${DEMO_STRIP_ALL}")
message(STATUS "  DEMO_FINAL_STRIP:        ${DEMO_FINAL_STRIP}")
message(STATUS "  DEMO_STRIP_EXTERNAL_LIBS: ${DEMO_STRIP_EXTERNAL_LIBS}")
message(STATUS "  DEMO_BUILD_TESTS:        ${DEMO_BUILD_TESTS}")
message(STATUS "  DEMO_BUILD_TOOLS:        ${DEMO_BUILD_TOOLS}")
message(STATUS "  DEMO_ENABLE_COVERAGE:    ${DEMO_ENABLE_COVERAGE}")
message(STATUS "  DEMO_ENABLE_DEBUG_LOGS:  ${DEMO_ENABLE_DEBUG_LOGS}")
message(STATUS "  DEMO_HEADLESS:           ${DEMO_HEADLESS}")
message(STATUS "  DEMO_WORKSPACE:          ${DEMO_WORKSPACE}")
message(STATUS "")