# Minimum required version of CMake
cmake_minimum_required(VERSION 3.20)

# Set the project name and version
project(main VERSION 1.0.0 HOMEPAGE_URL "https://git.noorlander.info/E.Noorlander/Cmake_C_Project" DESCRIPTION "Demo embedded linux C project" LANGUAGES C)

# Set a custom application name and definitions
set(BIN_NAME "test")
add_compile_definitions(APP_NAME="${BIN_NAME}")
add_compile_definitions(MESSAGE="Hello for TESTLIB from cmake.")
add_compile_definitions(MAIN_MESSAGE="Hello for main.c from cmake.")

# For LVGL
add_compile_definitions(DLV_CONF_PATH="${CMAKE_CURRENT_SOURCE_DIR}/include/lv_conf.h")
# add_compile_definitions(DLV_CONF_PATH="${CMAKE_CURRENT_SOURCE_DIR}/include/lv_drv_conf.h")
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include/)

# set 1 to compile static (Standalone) 
set(BIN_STATIC 0) # TODO Static 

# Set binary suffix based on the operating system
if(CMAKE_SYSTEM_NAME STREQUAL "Windows")
    set(BIN_SUFFIX ".exe")
elseif(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
    set(BIN_SUFFIX ".app")
elseif(CMAKE_SYSTEM_NAME STREQUAL "Linux")
    set(BIN_SUFFIX ".out")
else()
    set(BIN_SUFFIX ".bin")
endif()

# For Windows-specific configurations
if(MSVC)
    add_compile_options(/std:c11)
    set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS TRUE)
    set(BUILD_SHARED_LIBS TRUE)
endif()

# List of subprojects to include (e.g., external libraries or modules)
set(SubProjects
    testlib  # Example subproject
    lvgl
)

# Create the main executable, specifying the source file
add_executable(${PROJECT_NAME} ${CMAKE_CURRENT_SOURCE_DIR}/src/main.c)

set_target_properties(${PROJECT_NAME}
    PROPERTIES
        OUTPUT_NAME ${BIN_NAME}
        SUFFIX ${BIN_SUFFIX}
)

# Loop over the subprojects and link them to the main executable
foreach(Project IN LISTS SubProjects)
    # Check if the target for this subproject has been added already
    if(NOT TARGET ${Project})
        # Add the subproject's directory to the build (if not already added)
        add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/lib/${Project})
    endif()
    
    # Link the subproject to the main project executable
    if(BIN_STATIC)
        target_link_libraries(${PROJECT_NAME} ${Project} -static)
    else()
        target_link_libraries(${PROJECT_NAME} ${Project})
    endif()
endforeach()

# For SDL
find_package(SDL2 REQUIRED)
include_directories(${SDL2_INCLUDE_DIRS})
if(BIN_STATIC)
    target_link_libraries(${PROJECT_NAME} ${SDL2_LIBRARIES} -static)
else()
    target_link_libraries(${PROJECT_NAME} ${SDL2_LIBRARIES})
endif()

# Add all core's for compiling
include(ProcessorCount)
ProcessorCount(N)
if(NOT N EQUAL 0)
  set(CTEST_BUILD_FLAGS -j${N})
  set(ctest_test_args ${PROJECT_NAME} PARALLEL_LEVEL ${N})
endif()