# ##############################################################################
# CMake support for the Flight Software Framework Author: R. Mueller
# ##############################################################################

# ##############################################################################
# Pre-Project preparation
# ##############################################################################
cmake_minimum_required(VERSION 3.13)

# set(CMAKE_VERBOSE TRUE)

set(CMAKE_SCRIPT_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
set(RTEMS_CMAKE_PATH "${CMAKE_SCRIPT_PATH}/rtems-cmake")

set(FSFW_OSAL
    rtems
    CACHE STRING "OS for the FSFW")
set(STM32_ADD_NETWORKING_CODE ON)
set(OBSW_MAX_SCHEDULED_TCS 200)
set(FSFW_HAL_ADD_STM32H7 ON)

# Set TGT_BSP to correct target for pre-project configuration
set(TGT_BSP "arm/stm32h743zi-nucleo")
add_definitions(-DSTM32H743ZI_NUCLEO)

# This call has to come before the project call
include("${CMAKE_SCRIPT_PATH}/PreProjectConfig.cmake")

# Project Name
project(fsfw-example-stm32h7-rtems ASM C CXX)

# ##############################################################################
# Pre-Sources preparation
# ##############################################################################

# Specify the C++ standard
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED True)

# Set names and variables
set(TARGET_NAME ${CMAKE_PROJECT_NAME})
set(LIB_FSFW_NAME fsfw)
set(LIB_LWIP_NAME lwip)

# Set path names
set(FSFW_PATH fsfw)
set(COMMON_PATH example_common)

set(BSP_PATH "bsp_stm32h7_rtems")
set(COMMON_CONFIG_PATH "${COMMON_PATH}/config")
set(FSFW_CONFIG_PATH "${BSP_PATH}/fsfwconfig")
set(BSP_NUCLEO_PATH "${BSP_PATH}/boarconfig/NUCLEO-H743ZI")
set(BSP_NUCLEO_PATH_INC "${BSP_PATH}/boardconfig/NUCLEO-H743ZI/Inc")

set(FSFW_ADDITIONAL_INC_PATHS
    "${COMMON_CONFIG_PATH}" "${CMAKE_CURRENT_BINARY_DIR}"
    CACHE STRING "FSFW configuration paths")

configure_file(${COMMON_CONFIG_PATH}/commonConfig.h.in commonConfig.h)
configure_file(${FSFW_CONFIG_PATH}/FSFWConfig.h.in FSFWConfig.h)
configure_file(${FSFW_CONFIG_PATH}/OBSWConfig.h.in OBSWConfig.h)
configure_file(${BSP_NUCLEO_PATH_INC}/lwipopts.h.in lwipopts.h)
configure_file(${BSP_PATH}/RTEMSConfig.h.in RTEMSConfig.h)

if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
  set(WARNING_FLAGS -Wall -Wextra -Wimplicit-fallthrough=1
                    -Wno-unused-parameter -Wno-psabi)

  set(FSFW_WARNING_FLAGS ${WARNING_FLAGS})
elseif(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
  add_compile_options(/permissive- /d2SSAOptimizer-)
  # To avoid nameclashes with min and max macro
  add_compile_definitions(NOMINMAX)
endif()

# ##############################################################################
# Executable and Sources
# ##############################################################################

# Add executable
add_executable(${TARGET_NAME})

# Add subdirectories
add_subdirectory(${BSP_PATH})
add_subdirectory(${FSFW_PATH})
add_subdirectory(${COMMON_PATH})

# ##############################################################################
# Post-Sources preparation
# ##############################################################################

# Check whether the user has already installed ETL first find_package(etl
# ${FSFW_ETL_LIB_MAJOR_VERSION} CONFIG QUIET) Not installed, so use FetchContent
# to download and provide etl if(NOT etl_FOUND) There are issues using
# find_package. For now, always use FetchContent See this github issue:
# https://github.com/ETLCPP/etl/issues/548
message(
  STATUS
    "No ETL installation was found with find_package. Installing and providing "
    "etl with FindPackage")
include(FetchContent)
FetchContent_Declare(
  etl
  GIT_REPOSITORY https://github.com/ETLCPP/etl
  GIT_TAG ${FSFW_ETL_LIB_VERSION})
list(APPEND FSFW_FETCH_CONTENT_TARGETS etl)
# endif()

# The documentation for FetchContent recommends declaring all the dependencies
# before making them available. We make all declared dependency available here
# after their declaration
if(FSFW_FETCH_CONTENT_TARGETS)
  FetchContent_MakeAvailable(${FSFW_FETCH_CONTENT_TARGETS})
endif()

# Add libraries for all sources.
target_link_libraries(
  ${TARGET_NAME}
  PRIVATE ${LIB_FSFW_NAME} etl
          # Link against lwip which is part of the RTEMS BSP
          ${LIB_LWIP_NAME})

# Add include paths for all sources.
target_include_directories(
  ${TARGET_NAME} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
                         ${CMAKE_CURRENT_BINARY_DIR} ${FSFW_CONFIG_PATH})

if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
  target_link_options(${TARGET_NAME} PRIVATE "-Wl,-Map=${TARGET_NAME}.map")

  # Remove unused sections.
  target_compile_options(${TARGET_NAME} PRIVATE "-ffunction-sections"
                                                "-fdata-sections")

  # Removed unused sections.
  if(NOT FSFW_OSAL MATCHES rtems)
    target_link_options(${TARGET_NAME} PRIVATE "-Wl,--gc-sections")
  endif()
elseif(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")

endif()

if(CMAKE_VERBOSE)
  message(STATUS "Warning flags: ${WARNING_FLAGS}")
endif()

# Compile options for all sources.
target_compile_options(${TARGET_NAME} PRIVATE ${WARNING_FLAGS})

string(CONCAT POST_BUILD_COMMENT "Build directory: ${CMAKE_BINARY_DIR}\n"
              "Target OSAL: ${FSFW_OSAL}\n" "Target RTEMS BSP: ${RTEMS_BSP}\n"
              "Target Build Type: ${CMAKE_BUILD_TYPE}\n" "${TARGET_STRING}")

add_custom_command(
  TARGET ${TARGET_NAME}
  POST_BUILD
  COMMAND ${CMAKE_SIZE} ${TARGET_NAME}
  COMMENT ${POST_BUILD_COMMENT})

include("${RTEMS_CONFIG_DIR}/BuildType.cmake")
set_build_type()

# ##############################################################################
# Load RTEMS post-project configuration and checks
# ##############################################################################
include("${RTEMS_CONFIG_DIR}/RTEMSPostProjectConfig.cmake")
rtems_post_project_config(${TARGET_NAME})