cmake_minimum_required (VERSION 2.8.10 FATAL_ERROR)
set (BUILD_SHARED_LIBRARIES OFF)
include (ExternalProject)
set (CMAKE_CXX_STANDARD 17)
set (CMAKE_CXX_STANDARD_REQUIRED ON)
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -lstdc++fs -Werror")

# this is because peci linux header throws #warning
set (CMAKE_CXX_FLAGS "-Wno-error=#warnings")

set (CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake ${CMAKE_MODULE_PATH})

option (YOCTO "Enable Building in Yocto" OFF)
option (HUNTER_ENABLED "Enable hunter package pulling" OFF)
include ("cmake/HunterGate.cmake")

huntergate (URL "https://github.com/ruslo/hunter/archive/v0.18.64.tar.gz" SHA1
            "baf9c8cc4f65306f0e442b5419967b4c4c04589a")

project (sensors CXX)

set (FAN_SRC_FILES src/TachSensor.cpp src/PwmSensor.cpp src/Utils.cpp
     src/Thresholds.cpp)

set (HWMON_TEMP_SRC_FILES src/Utils.cpp src/HwmonTempSensor.cpp
     src/Thresholds.cpp)

set (CPU_SRC_FILES src/Utils.cpp src/CPUSensor.cpp src/Thresholds.cpp)

set (ADC_SRC_FILES src/Utils.cpp src/ADCSensor.cpp src/Thresholds.cpp)

set (EXIT_AIR_SRC_FILES src/Utils.cpp src/Thresholds.cpp)

set (EXTERNAL_PACKAGES Boost sdbusplus-project nlohmann-json)
set (SENSOR_LINK_LIBS -lsystemd stdc++fs sdbusplus)

if (NOT YOCTO)
    option (ENABLE_TEST "Enable Google Test" OFF)
    include_directories (${CMAKE_CURRENT_SOURCE_DIR}/include/non-yocto)

    externalproject_add (
        Boost URL
        https://dl.bintray.com/boostorg/release/1.66.0/source/boost_1_66_0.tar.gz
        URL_MD5 d275cd85b00022313c171f602db59fc5 SOURCE_DIR
        "${CMAKE_BINARY_DIR}/boost-src" BINARY_DIR
        "${CMAKE_BINARY_DIR}/boost-build" CONFIGURE_COMMAND "" BUILD_COMMAND ""
        INSTALL_COMMAND ""
    )
    include_directories (${CMAKE_BINARY_DIR}/boost-src)
    set (CMAKE_PREFIX_PATH ${CMAKE_BINARY_DIR}/boost-src ${CMAKE_PREFIX_PATH})

    # requires apt install autoconf-archive and autoconf
    externalproject_add (sdbusplus-project PREFIX
                         ${CMAKE_BINARY_DIR}/sdbusplus-project GIT_REPOSITORY
                         https://github.com/openbmc/sdbusplus.git SOURCE_DIR
                         ${CMAKE_BINARY_DIR}/sdbusplus-src BINARY_DIR
                         ${CMAKE_BINARY_DIR}/sdbusplus-build CONFIGURE_COMMAND
                         "" BUILD_COMMAND cd ${CMAKE_BINARY_DIR}/sdbusplus-src
                         && ./bootstrap.sh && ./configure --enable-transaction
                         && make -j libsdbusplus.la INSTALL_COMMAND ""
                         LOG_DOWNLOAD ON)
    include_directories (${CMAKE_BINARY_DIR}/sdbusplus-src)
    link_directories (${CMAKE_BINARY_DIR}/sdbusplus-src/.libs)

    externalproject_add (nlohmann-json PREFIX
                         ${CMAKE_CURRENT_BINARY_DIR}/nlohmann-json
                         GIT_REPOSITORY https://github.com/nlohmann/json.git
                         SOURCE_DIR ${CMAKE_BINARY_DIR}/nlohmann-json-src
                         BINARY_DIR ${CMAKE_BINARY_DIR}/nlohmann-json-build
                         CONFIGURE_COMMAND "" BUILD_COMMAND "" INSTALL_COMMAND
                         "" LOG_DOWNLOAD ON)
    include_directories (${CMAKE_BINARY_DIR}/nlohmann-json-src/include)
    if (ENABLE_TEST)
        option (HUNTER_ENABLED "Enable hunter package pulling" ON)
        hunter_add_package (GTest)

        find_package (GTest CONFIG REQUIRED)

        enable_testing ()

        add_executable (runTachTests tests/test_TachSensor.cpp ${FAN_SRC_FILES})
        add_test (NAME test_fansensor COMMAND runTachTests)
        target_link_libraries (runTachTests GTest::main GTest::gtest pthread
                               ${DBUS_LIBRARIES} stdc++fs)
        add_dependencies (runTachTests nlohmann-json)

        add_executable (runHwmonTempTests tests/test_HwmonTempSensor.cpp
                        ${HWMON_TEMP_SRC_FILES})
        add_test (NAME test_hwmontempsensor COMMAND runHwmonTempTests)
        target_link_libraries (runHwmonTempTests GTest::main GTest::gtest
                               pthread ${DBUS_LIBRARIES} stdc++fs)
        add_dependencies (runHwmonTempTests nlohmann-json)
    endif ()

endif ()

add_definitions (-DBOOST_ERROR_CODE_HEADER_ONLY)
add_definitions (-DBOOST_SYSTEM_NO_DEPRECATED)
add_definitions (-DBOOST_ALL_NO_LIB)
add_definitions (-DBOOST_NO_RTTI)
add_definitions (-DBOOST_NO_TYPEID)
add_definitions (-DBOOST_ASIO_DISABLE_THREADS)

link_directories (${EXTERNAL_INSTALL_LOCATION}/lib)

include_directories (${CMAKE_CURRENT_SOURCE_DIR}/include)

add_executable (fansensor src/FanMain.cpp ${FAN_SRC_FILES})
add_dependencies (fansensor sdbusplus)
target_link_libraries (fansensor ${SENSOR_LINK_LIBS})

add_executable (hwmontempsensor src/HwmonTempMain.cpp ${HWMON_TEMP_SRC_FILES})
add_dependencies (hwmontempsensor sdbusplus)
target_link_libraries (hwmontempsensor ${SENSOR_LINK_LIBS})

add_executable (cpusensor src/CPUSensorMain.cpp ${CPU_SRC_FILES})
add_dependencies (cpusensor sdbusplus)
target_link_libraries (cpusensor ${SENSOR_LINK_LIBS})

add_executable (adcsensor src/ADCSensorMain.cpp ${ADC_SRC_FILES})
add_dependencies (adcsensor sdbusplus)
target_link_libraries (adcsensor ${SENSOR_LINK_LIBS})

add_executable (exitairtempsensor src/ExitAirTempSensor.cpp
                ${EXIT_AIR_SRC_FILES})
add_dependencies (exitairtempsensor sdbusplus)
target_link_libraries (exitairtempsensor ${SENSOR_LINK_LIBS})

if (NOT YOCTO)
    add_dependencies (fansensor ${EXTERNAL_PACKAGES})
    add_dependencies (hwmontempsensor ${EXTERNAL_PACKAGES})
    add_dependencies (adcsensor ${EXTERNAL_PACKAGES})
    add_dependencies (cpusensor ${EXTERNAL_PACKAGES})
    add_dependencies (exitairtempsensor ${EXTERNAL_PACKAGES})
endif ()

set (
    SERVICE_FILES
    ${PROJECT_SOURCE_DIR}/service_files/xyz.openbmc_project.adcsensor.service
    ${PROJECT_SOURCE_DIR}/service_files/xyz.openbmc_project.cpusensor.service
    ${PROJECT_SOURCE_DIR}/service_files/xyz.openbmc_project.fansensor.service
    ${PROJECT_SOURCE_DIR}/service_files/xyz.openbmc_project.hwmontempsensor.service
    ${PROJECT_SOURCE_DIR}/service_files/xyz.openbmc_project.exitairsensor.service
)

install (TARGETS fansensor hwmontempsensor cpusensor adcsensor
                 exitairtempsensor DESTINATION sbin)
install (FILES ${SERVICE_FILES} DESTINATION /lib/systemd/system/)