CMAKE_MINIMUM_REQUIRED(VERSION 3.0...3.20)
PROJECT(TDengine)

SET(CMAKE_C_STANDARD 11)

IF (TD_BUILD_VERBOSE)
  SET(CMAKE_VERBOSE_MAKEFILE ON)
ELSE ()
  SET(CMAKE_VERBOSE_MAKEFILE OFF)
ENDIF ()

#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 "${TD_COMMUNITY_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 "${TD_COMMUNITY_DIR}/deps/jemalloc/Makefile.in")
    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 (TD_BUILD_JDBC)
    FIND_PROGRAM(TD_MVN_INSTALLED mvn)
    IF (TD_MVN_INSTALLED)
        MESSAGE(STATUS "MVN is installed and JDBC will be compiled")
    ELSE ()
        MESSAGE(STATUS "MVN is not installed and JDBC is not compiled")
    ENDIF ()
ENDIF ()

#
# If need to set debug options
#   1.Generate debug version:
#     mkdir debug; cd debug;
#     cmake -DCMAKE_BUILD_TYPE=Debug ..
#   2.Generate release version:
#     mkdir release; cd release;
#     cmake -DCMAKE_BUILD_TYPE=Release ..
#

# Set compiler options
IF (TD_LINUX)
  SET(COMMON_C_FLAGS "${COMMON_FLAGS} -std=gnu99")
ELSE ()
  SET(COMMON_C_FLAGS "${COMMON_FLAGS} ")
ENDIF ()

SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} ${COMMON_C_FLAGS} ${DEBUG_FLAGS}")
SET(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} ${COMMON_C_FLAGS} ${RELEASE_FLAGS}")

# Set c++ compiler options
IF (TD_WINDOWS)
  SET(COMMON_CXX_FLAGS "${COMMON_FLAGS} -std=c++11")
ELSE ()
  SET(COMMON_CXX_FLAGS "${COMMON_FLAGS} -std=c++11 -Wno-unused-function")
ENDIF ()

SET(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} ${COMMON_CXX_FLAGS} ${DEBUG_FLAGS}")
SET(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} ${COMMON_CXX_FLAGS} ${RELEASE_FLAGS}")

IF (${CMAKE_BUILD_TYPE} MATCHES "Debug")
  SET(CMAKE_BUILD_TYPE "Debug")
  MESSAGE(STATUS "Build Debug Version")
ELSEIF (${CMAKE_BUILD_TYPE} MATCHES "Release")
  SET(CMAKE_BUILD_TYPE "Release")
  MESSAGE(STATUS "Build Release Version")
ELSE ()
  IF (TD_WINDOWS)
    SET(CMAKE_BUILD_TYPE "Release")
    MESSAGE(STATUS "Build Release Version in Windows as default")
  ELSE ()
    SET(CMAKE_BUILD_TYPE "Debug")
    MESSAGE(STATUS "Build Debug Version as default")
  ENDIF()
ENDIF ()