cmake_minimum_required(VERSION 3.16)

set(CMAKE_VERBOSE_MAKEFILE OFF)

SET(BUILD_SHARED_LIBS "OFF")

#set output directory
SET(LIBRARY_OUTPUT_PATH ${PROJECT_BINARY_DIR}/build/lib)
SET(EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR}/build/bin)
SET(TD_TESTS_OUTPUT_DIR ${PROJECT_BINARY_DIR}/test)

MESSAGE(STATUS "Project source directory: " ${PROJECT_SOURCE_DIR})
MESSAGE(STATUS "Project binary files output path: " ${PROJECT_BINARY_DIR})
MESSAGE(STATUS "Project executable files output path: " ${EXECUTABLE_OUTPUT_PATH})
MESSAGE(STATUS "Project library files output path: " ${LIBRARY_OUTPUT_PATH})

find_package(Git QUIET)
if(GIT_FOUND AND EXISTS "${PROJECT_SOURCE_DIR}/.git")
# Update submodules as needed
    option(GIT_SUBMODULE "Check submodules during build" ON)
    if(GIT_SUBMODULE)
        message(STATUS "Submodule update")
        execute_process(COMMAND ${GIT_EXECUTABLE} submodule update --init --recursive
                        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
                        RESULT_VARIABLE GIT_SUBMOD_RESULT)
        if(NOT GIT_SUBMOD_RESULT EQUAL "0")
            message(WARNING "git submodule update --init --recursive failed with ${GIT_SUBMOD_RESULT}, please checkout submodules")
        endif()
    endif()
endif()

if(NOT EXISTS "${PROJECT_SOURCE_DIR}/tools/taos-tools/CMakeLists.txt")
    message(WARNING "The submodules were not downloaded! GIT_SUBMODULE was turned off or failed. Please update submodules manually if you need build them.")
endif()

if (NOT DEFINED TD_GRANT)
  SET(TD_GRANT FALSE)
endif()

IF ("${BUILD_TOOLS}" STREQUAL "")
  IF (TD_LINUX)
    IF (TD_ARM_32)
      SET(BUILD_TOOLS "false")
    ELSEIF (TD_ARM_64)
      SET(BUILD_TOOLS "false")
    ELSE ()
      SET(BUILD_TOOLS "false")
    ENDIF ()
  ELSEIF (TD_DARWIN)
    SET(BUILD_TOOLS "false")
  ELSE ()
    SET(BUILD_TOOLS "false")
  ENDIF ()
ENDIF ()

IF ("${BUILD_TOOLS}" MATCHES "false")
    MESSAGE("${Yellow} Will _not_ build taos_tools! ${ColourReset}")
    SET(TD_TAOS_TOOLS FALSE)
ELSE ()
    MESSAGE("")
    MESSAGE("${Green} Will build taos_tools! ${ColourReset}")
    MESSAGE("")
    SET(TD_TAOS_TOOLS TRUE)
ENDIF ()

IF (TD_WINDOWS)
    MESSAGE("${Yellow} set compiler flag for Windows! ${ColourReset}")
    SET(COMMON_FLAGS "/W3 /D_WIN32")
    SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /MANIFEST:NO")
    # IF (MSVC AND (MSVC_VERSION GREATER_EQUAL 1900))
    #  SET(COMMON_FLAGS "${COMMON_FLAGS} /Wv:18")
    # ENDIF ()

    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${COMMON_FLAGS}")
    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${COMMON_FLAGS}")

ELSE ()
    IF (${SANITIZER} MATCHES "true")
        SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}     -Werror -Werror=return-type -fPIC -gdwarf-2 -fsanitize=address -fsanitize=undefined -fno-sanitize-recover=all -fsanitize=float-divide-by-zero -fsanitize=float-cast-overflow -fno-sanitize=null -fno-sanitize=alignment -static-libasan -g3")
        SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror -Werror=return-type -fPIC -gdwarf-2 -fsanitize=address -fsanitize=undefined -fno-sanitize-recover=all -fsanitize=float-divide-by-zero -fsanitize=float-cast-overflow -fno-sanitize=null -fno-sanitize=alignment -static-libasan -g3")
	MESSAGE(STATUS "Will compile with Address Sanitizer!")
    ELSE ()
        SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror -Werror=return-type -fPIC -gdwarf-2 -g3")
        SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-literal-suffix -Werror=return-type -fpermissive -fPIC -gdwarf-2 -g3")
    ENDIF ()

    MESSAGE("System processor ID: ${CMAKE_SYSTEM_PROCESSOR}")
    IF (${CMAKE_SYSTEM_PROCESSOR} MATCHES "arm64" OR ${CMAKE_SYSTEM_PROCESSOR} MATCHES "aarch64")
        ADD_DEFINITIONS("-D_TD_ARM_")
    ELSE ()
        ADD_DEFINITIONS("-msse4.2")
        IF("${FMA_SUPPORT}" MATCHES "true")
            MESSAGE(STATUS "turn fma function support on")
            ADD_DEFINITIONS("-mfma")
        ELSE ()
            MESSAGE(STATUS "turn fma function support off")
        ENDIF()
    ENDIF ()

ENDIF ()