if("${TESTING_ROOT_DIR}" STREQUAL "")
  message(FATAL_ERROR "TESTING_ROOT_DIR variable must be set." )
else()
  message("Testing root directory is ${TESTING_ROOT_DIR}")
endif()

if("${HOST_NAME}" STREQUAL "")
  message(FATAL_ERROR "HOST_NAME variable must be set." )
else()
  message("HOST_NAME is ${HOST_NAME}")
endif()

if("${SOURCE_DIR}" STREQUAL "")
  message(FATAL_ERROR "SOURCE_DIR variable must be set." )
else()
  message("SOURCE_DIR is ${SOURCE_DIR}")
endif()

if("${BUILD_DIR}" STREQUAL "")
  set(BUILD_DIR "${SOURCE_DIR}/build")
  message("BUILD_DIR is ${BUILD_DIR}")
else()
  message("BUILD_DIR is ${BUILD_DIR}")
endif()

set(CTEST_SITE "${HOST_NAME}")
set(CTEST_BUILD_NAME "AMR-Wind-${CMAKE_SYSTEM_NAME}${EXTRA_BUILD_NAME}")
set(CTEST_SOURCE_DIRECTORY "${SOURCE_DIR}")
set(CTEST_BINARY_DIRECTORY "${BUILD_DIR}")
set(CTEST_START_WITH_EMPTY_BINARY_DIRECTORY TRUE)
find_program(CTEST_GIT_COMMAND NAMES git)
find_program(MAKE NAMES make)

if("${NP}" STREQUAL "")
  include(ProcessorCount)
  ProcessorCount(NP)
endif()
message(STATUS "\nNumber of processors detected: ${NP}")
set(CTEST_BUILD_FLAGS "-j${NP}")
if(CTEST_DISABLE_OVERLAPPING_TESTS)
  set(CTEST_PARALLEL_LEVEL 1)
else()
  set(CTEST_PARALLEL_LEVEL ${NP})
endif()

set(CTEST_UPDATE_COMMAND "${CTEST_GIT_COMMAND}")
set(CTEST_CONFIGURE_COMMAND "cmake ${CMAKE_CONFIGURE_ARGS} -DAMR_WIND_ENABLE_TESTS:BOOL=ON ${CTEST_SOURCE_DIRECTORY}")
set(CTEST_BUILD_COMMAND "${MAKE} ${CTEST_BUILD_FLAGS}")

message("\n -- Start dashboard - ${CTEST_BUILD_NAME} --")
ctest_start("Nightly" TRACK "Nightly")

message("\n -- Update - ${CTEST_BUILD_NAME} --")
ctest_update(SOURCE "${CTEST_SOURCE_DIRECTORY}" RETURN_VALUE result)
message(" -- Update exit code = ${result} --")

if(USE_LATEST_AMREX)
  # ctest_update always performs a submodule update so we need to checkout AMReX here ourselves.
  # A single execute_process command pipes output from one command to another so we use multiple.
  message("\n -- Update AMReX- ${CTEST_BUILD_NAME} --")
  execute_process (
    COMMAND ${CTEST_GIT_COMMAND} checkout development
    WORKING_DIRECTORY ${CTEST_SOURCE_DIRECTORY}/submods/amrex
  )
  execute_process (
    COMMAND ${CTEST_GIT_COMMAND} pull origin development
    WORKING_DIRECTORY ${CTEST_SOURCE_DIRECTORY}/submods/amrex
  )
  execute_process (
    COMMAND ${CTEST_GIT_COMMAND} log -1 --pretty=oneline
    WORKING_DIRECTORY ${CTEST_SOURCE_DIRECTORY}/submods/amrex
  )
endif()

if(result GREATER -1)
  message("\n -- Configure - ${CTEST_BUILD_NAME} --")
  ctest_configure(BUILD "${CTEST_BINARY_DIRECTORY}" RETURN_VALUE result)
  message(" -- Configure exit code = ${result} --")
  if(result EQUAL 0)
    message("\n -- Build - ${CTEST_BUILD_NAME} --")
    ctest_read_custom_files("${CTEST_BINARY_DIRECTORY}")
    ctest_build(BUILD "${CTEST_BINARY_DIRECTORY}" RETURN_VALUE result)
    message(" -- Build exit code = ${result} --")
    if(result EQUAL 0)
      # Need to have TMPDIR set to disk on certain NREL machines for building so builds
      # do not run out of space but unset when running to stop OpenMPI from complaining
      if(UNSET_TMPDIR_VAR)
        message("Clearing TMPDIR variable...")
        unset(ENV{TMPDIR})
      endif()
      message("\n -- Test - ${CTEST_BUILD_NAME} --")
      ctest_test(BUILD "${CTEST_BINARY_DIRECTORY}"
                 PARALLEL_LEVEL ${CTEST_PARALLEL_LEVEL}
                 RETURN_VALUE result)
      message(" -- Test exit code = ${result} --")
    endif()
  endif()
endif()

message("\n -- Submit - ${CTEST_BUILD_NAME} --")
set(CTEST_NOTES_FILES "${TEST_LOG}")
if(HAVE_STATIC_ANALYSIS_OUTPUT)
  set(CTEST_NOTES_FILES ${CTEST_NOTES_FILES} "${STATIC_ANALYSIS_LOG}")
endif()
ctest_submit(RETRY_COUNT 20
             RETRY_DELAY 20
             RETURN_VALUE result)
message(" -- Submit exit code = ${result} --")

message("\n -- Finished - ${CTEST_BUILD_NAME} --")