#!/bin/bash
#usage : script [-c -l -n -s -k] testsuite_dir

if command -v rsync >/dev/null 2>&1; then
  rsync_scp() {
    rsync -avz --chmod=ugo=rX "$@"
  }
else
  rsync_scp() {
    command scp "$@"
  }
fi

##########################
####   LAUNCH CTEST   ####
##########################

# shellcheck source=/dev/null
source "${CGAL_DIR}/${SCRIPTS_DIR}developer_scripts/log.sh"
# Load settings
if [ -f "${CGAL_HOME}/.autocgalrc" ]; then
  # shellcheck source=/dev/null
  . "${CGAL_HOME}/.autocgalrc"
else
  echo "CONFIGURATION FILE  .autocgalrc NOT FOUND" >&2;
  exit 1
fi

# ----------------------------------------------------------------------------------------
# function to print the value of variable $1
# ----------------------------------------------------------------------------------------
value_of()
{
  _value=$(eval "printf '$'${1}")
  eval "printf \"${_value}\""
}

# ----------------------------------------------------------------------------------------
# produce a string containing the actual date/time
#  (used to identify files)
# ----------------------------------------------------------------------------------------
date_str()
{
  date +%d%m%Y%H%M
}


# ----------------------------------------------------------------------------------------
# Return 0 if $1 exists in the list $2, otherwise returns non-zero.
# ----------------------------------------------------------------------------------------
is_in_list()
{
  ELEMENT=${1}
  LIST=${2}

  for E in ${LIST} ; do
    if [ "${E}" = "${ELEMENT}" ] ; then
      return 0
    fi
  done

  return 1
}


# ----------------------------------------------------------------------------------------
# Uniquely adds $1 to the global, space-separated list $PLATFORMS
# (if it is not in the list already)
# ----------------------------------------------------------------------------------------
add_to_platforms()
{
  if ! is_in_list "${1}" "${PLATFORMS}" ; then
    PLATFORMS="${PLATFORMS} ${1}"
  fi
}

# ----------------------------------------------------------------------------------------
# Uniquely adds to the global, space-separated list $PLATFORMS all the directories found
# under ${REFERENCE_PLATFORMS_DIR}
# ----------------------------------------------------------------------------------------
collect_all_reference_platforms()
{
  log "${ACTUAL_LOGFILE}" "Indicated to build on ALL platform folders"
  if [ -d "${REFERENCE_PLATFORMS_DIR}" ]; then
    cd "${REFERENCE_PLATFORMS_DIR}" || exit 1
    for PLATFORM in * ; do
      if [ -d "${PLATFORM}" ]; then
        add_to_platforms "${PLATFORM}"
      fi
    done
  else
    log "${ACTUAL_LOGFILE}" "WARNING: Invalid reference platforms directory: ${REFERENCE_PLATFORMS_DIR}"
  fi
}

# ----------------------------------------------------------------------------------------
# Uniquely adds to the global, space-separated list $PLATFORMS all the directories found
# under $1
# ----------------------------------------------------------------------------------------
collect_all_current_platforms()
{
  PLATFORMS=""
  cd "${1}" || exit 1
  for PLATFORM in * ; do
    if [ -d "${PLATFORM}" ]; then
      PLATFORMS="${PLATFORMS} ${PLATFORM}"
    fi
  done
}

# ----------------------------------------------------------------------------------------
# Uniquely adds to the global, space-separated list $PLATFORMS all the directory names
# listed in the space-separated list $1
# NOTE: If any such name is "all", it's NOT added as a platform and the flag
# USE_REFERENCE_PLATFORMS is set instead.
# ----------------------------------------------------------------------------------------
build_platforms_list()
{
  for LOCAL_PLATFORM in $1; do
    if [ "${LOCAL_PLATFORM}" = "all" ] ; then
      USE_REFERENCE_PLATFORMS='y'
    else
      add_to_platforms "${LOCAL_PLATFORM}"
    fi
  done
}


# ----------------------------------------------------------------------------------------
# Sets up the variables indicating the directories to use.
# Creates all platform directories under the current release binary folder.
# ----------------------------------------------------------------------------------------
setup_dirs()
{
  # dir for the actual release
  if [ ! -d "${CGAL_DIR}/test" ]; then
    mkdir "${CGAL_DIR}/test"
    #give all rights so that, if it is first created by docker, it is still editable without root access by the local user.
    chmod 777 "${CGAL_DIR}/test"
  fi
  CGAL_TEST_DIR=${CGAL_DIR}/test

  if [ ! -d "${CGAL_DIR}/cmake" ]; then
    mkdir "${CGAL_DIR}/cmake"
    chmod 777 "${CGAL_DIR}/cmake"
    log "${ACTUAL_LOGFILE}" "Creating ${CGAL_DIR}/cmake"
  fi

  if [ ! -d "${CGAL_DIR}/cmake/platforms" ]; then
    mkdir "${CGAL_DIR}/cmake/platforms"
    chmod 777 "${CGAL_DIR}/cmake/platforms"
    log "${ACTUAL_LOGFILE}" "Creating ${CGAL_DIR}/cmake/platforms"
  fi

  CGAL_RELEASE_DIR="${CGAL_DIR}"
  if [ -z "$SCRIPTS_DIR" ]; then
    CGAL_RELEASE_ID=$(basename "${CGAL_RELEASE_DIR}")
  else
    CGAL_GIT_VERSION=$(sed -n '/CGAL_VERSION /s/#define CGAL_VERSION //p'<"$CGAL_DIR/${INSTALLATION_DIR}include/CGAL/version.h" | sed -n 's/-\w*//p')
    MINIMALIST_DATE=$(date +%y%m%d)
    CGAL_GIT_VERSION="${CGAL_GIT_VERSION}-Ic-${MINIMALIST_DATE}"
    CGAL_RELEASE_ID="CGAL-${CGAL_GIT_VERSION}"
  fi

  #todo : too complicated for nothing. Take a simpler outsource build dir
  CGAL_BINARY_DIR_BASE=${CGAL_RELEASE_DIR}/cmake/platforms

  log "${ACTUAL_LOGFILE}" "Release to test ${CGAL_RELEASE_DIR}"
  log "${ACTUAL_LOGFILE}" "CGAL_RELEASE_ID=${CGAL_RELEASE_ID}"

  if [ ! -r "${LOGS_DIR}" ]; then
    mkdir "$LOGS_DIR"
    chmod 777 "$LOGS_DIR"
  fi

  #
  # Collects the list of platform directories to build and test on
  #
  # The global variable PLATFORMS contains all the platform directories for all hosts
  # as indicated in .autocgalrc.
  # If .autocgalrc says "all" in any entry for BUILD_ON_* or COMPILERS_*, the platform
  # directories existing in the reference release are added to $PLATFORMS
  #
  PLATFORMS=""
  build_platforms_list "$(value_of "BUILD_ON_${HOST}")"
  build_platforms_list "$(value_of "COMPILERS_${HOST}")"

  if [ -n "${USE_REFERENCE_PLATFORMS}" ]; then
    collect_all_reference_platforms
  fi

  for PLATFORM in ${PLATFORMS}; do

    # MSVC2015 does not support C++17
    if [ "${CGAL_RELEASE_ID}" \> "CGAL-6.0" ]; then
      if [ "${PLATFORM}" = "MSVC2015-Release-64bits" ]; then
        continue
      fi
    fi

    CGAL_BINARY_DIR=${CGAL_BINARY_DIR_BASE}/${PLATFORM}

    if [ ! -d "${CGAL_BINARY_DIR}" ]; then
      log "${ACTUAL_LOGFILE}" "Creating platform directory ${CGAL_BINARY_DIR}"
      mkdir "${CGAL_BINARY_DIR}"
      chmod 777 "${CGAL_BINARY_DIR}"
    fi

  done
}


# ----------------------------------------------------------------------------------------
# function to put result files on the web
# $1 = source filename (full path)
# $2 = target filename (basename only)
# ----------------------------------------------------------------------------------------
put_on_web()
{
  log "${ACTUAL_LOGFILE}" "Uploading results ${1} to $UPLOAD_RESULT_DESTINATION/$2"

  rsync_scp "${1}" "$UPLOAD_RESULT_DESTINATION/$2" >> "${ACTUAL_LOGFILE}"
}
# ----------------------------------------------------------------------------------------
put_demos_on_web()
{
  log "${ACTUAL_LOGFILE}" "Uploading demos ${1} to $UPLOAD_DEMOS_DESTINATION/$2"

  rsync_scp "${1}" "$UPLOAD_DEMOS_DESTINATION/$2" >> "${ACTUAL_LOGFILE}"
}


collect_demos_binaries()
{
  PLATFORM=${1}

  cd "${CGAL_TEST_DIR}" || exit 1

  echo "COLLECT_DEMOS_BINARIES=$COLLECT_DEMOS_BINARIES"
  if [ -n "$COLLECT_DEMOS_BINARIES" ]; then
    echo 'COLLECTING DEMOS BINARIES'


    DEMOS_TEST_DIR="${CGAL_DIR}/cmake/platforms/${PLATFORM}/test"
    cp "${CGAL_DIR}/${SCRIPTS_DIR}developer_scripts/cgal_demo_copy_all_dlls_cygwin.sh" "${DEMOS_TEST_DIR}"

    cd "${DEMOS_TEST_DIR}" || exit 1

    for demo_dir in *_Demo; do
      echo "pushd ${demo_dir}"
      pushd "${demo_dir}" || exit 1
      bash "${DEMOS_TEST_DIR}/cgal_demo_copy_all_dlls_cygwin.sh" "${demo_dir}_with_dlls" "${CONFIG_TYPE}"
      mv "${demo_dir}_with_dlls" "${DEMOS_TEST_DIR}"
      popd || exit 1
    done

    ${TAR} cf "demos_${CGAL_TESTER}_${PLATFORM}.tar" ./*_Demo_with_dlls/*;
    ${COMPRESSOR} -9f "demos_${CGAL_TESTER}_${PLATFORM}.tar"
    mv "demos_${CGAL_TESTER}_${PLATFORM}.tar.gz" "${CGAL_TEST_DIR}"
  else
    echo "Don't collect demos binaries for platform $PLATFORM";
  fi
}

publish_results()
{
  PLATFORM=${1}
  #
  # collect results and put them on the web
  #
  cd "${CGAL_TEST_DIR}" || exit 1

  log "${ACTUAL_LOGFILE}.test.${PLATFORM}" "COLLECTING RESULTS ${PLATFORM}-${HOST}"

  # If this file does not exist results collection failed. Fake a results so this fact is itself reported
  if [ ! -f "results_${CGAL_TESTER}_${PLATFORM}.txt" ]; then
    log "${ACTUAL_LOGFILE}.test.${PLATFORM}" "Results collection for tester ${CGAL_TESTER} and platform ${PLATFORM} failed!"
    echo "Results collection failed!" >> "results_${CGAL_TESTER}_${PLATFORM}.txt"
    ${TAR} cf "results_${CGAL_TESTER}_${PLATFORM}.tar" "results_${CGAL_TESTER}_${PLATFORM}.txt"
    ${COMPRESSOR} -9f "results_${CGAL_TESTER}_${PLATFORM}.tar"
  fi

  ${TAR} cf "test_results-${HOST}_${PLATFORM}.tar" "results_${CGAL_TESTER}_${PLATFORM}.tar.gz" "results_${CGAL_TESTER}_${PLATFORM}.txt"
  ${COMPRESSOR} -9f "test_results-${HOST}_${PLATFORM}.tar"
  COMPILER=$(printf "%s" "$1" | tr -c '[A-Za-z0-9]./[=-=]*_'\''":?() ' 'x')

  FILENAME="${CGAL_RELEASE_ID}_${CGAL_TESTER}-test$(date_str)-${COMPILER}-cmake.tar.gz"

  LOGFILENAME="${CGAL_RELEASE_ID}-log$(date_str)-${HOST}.gz"
  ${COMPRESSOR} -9f "${ACTUAL_LOGFILE}.test.${PLATFORM}"
  mv "${ACTUAL_LOGFILE}.test.${PLATFORM}.gz" "${LOGS_DIR}/${LOGFILENAME}"

  log_done "${ACTUAL_LOGFILE}.test.${PLATFORM}"

  log "${ACTUAL_LOGFILE}" "Test results: ${CGAL_TEST_DIR}/test_results-${HOST}_${PLATFORM}.tar.gz"

  if [ -z "${DO_NOT_UPLOAD}" ]; then
    log "${ACTUAL_LOGFILE}.test.${PLATFORM}" "PUTTING RESULTS ON THE WEB"
    put_on_web "test_results-${HOST}_${PLATFORM}.tar.gz" "${FILENAME}"
    if [ -e "demos_${CGAL_TESTER}_${PLATFORM}.tar.gz" ]; then
      put_demos_on_web "demos_${CGAL_TESTER}_${PLATFORM}.tar.gz" "demos-${FILENAME}"
    fi
    log_done "${ACTUAL_LOGFILE}"
  fi

}
run_test_on_platform()
{
  PLATFORM=${1}

  NUMBER_OF_PROCESSORS=$(value_of "PROCESSORS_${HOST}")
  if [ -z "${NUMBER_OF_PROCESSORS}" ]; then
    NUMBER_OF_PROCESSORS=1
  fi
  CGAL_BINARY_DIR=${CGAL_BINARY_DIR_BASE}/${PLATFORM}
  cd "${CGAL_BINARY_DIR}" || exit 1
  log "${ACTUAL_LOGFILE}.test.${PLATFORM}" "Testing on host ${HOST} and platform ${PLATFORM}"

  if [ -f "${CGAL_HOME}/${REFERENCE_PLATFORMS_DIR}/${PLATFORM}/setup" ]; then
    # shellcheck source=/dev/null
    source "${CGAL_HOME}/${REFERENCE_PLATFORMS_DIR}/${PLATFORM}/setup"
  else
    INIT_FILE="${CGAL_HOME}/${REFERENCE_PLATFORMS_DIR}/${PLATFORM}.cmake"
    if ! [ -f "${INIT_FILE}" ]; then
      INIT_FILE=""
    fi
  fi
  if [ ! -f "${INIT_FILE}" ]; then
    echo "error NEED A INIT FILE !"
  fi
  # cspell:disable-next-line
  cmake ${INIT_FILE:+"-C${INIT_FILE}"} -DCGAL_ENABLE_TESTING=ON -DWITH_tests=ON -DCGAL_TEST_SUITE=ON "$CGAL_DIR" > installation.log 2>&1
  rm CMakeCache.txt
  CMAKE_OPTS=()
  if [ -n "${INIT_FILE}" ]; then
    CMAKE_OPTS+=("-C${INIT_FILE}")
  fi
  CMAKE_OPTS+=("-DCGAL_ENABLE_TESTING=ON" "-DCGAL_TEST_SUITE=ON" "-DCMAKE_VERBOSE_MAKEFILE=ON" "-DWITH_tests=ON")
  if [ -n "${SCRIPTS_DIR}" ]; then
    CMAKE_OPTS+=("-DWITH_examples=ON" "-DWITH_demos=ON")
  fi
  if [ -z "${SHOW_PROGRESS}" ]; then
    cmake "${CMAKE_OPTS[@]}" "$CGAL_DIR" > package_installation.log 2>&1
  else
    cmake "${CMAKE_OPTS[@]}" "$CGAL_DIR" 2>&1 | tee package_installation.log
  fi
  LIST_TEST_FILE="${CGAL_HOME}/list_test_packages"
  if [ -f "${LIST_TEST_FILE}" ]; then
    # shellcheck source=/dev/null
    LIST_TEST_PACKAGES=$(source "${LIST_TEST_FILE}")
  fi
  INIT=""
  for pkg in $LIST_TEST_PACKAGES; do
    if [ -z "$INIT" ]; then
      TO_TEST=$pkg
      INIT="y"
    else
      TO_TEST="${TO_TEST}|$pkg"
    fi
  done
  #unset the limit of 1024 bits for the logs through ssh
  echo "SET(CTEST_CUSTOM_MAXIMUM_PASSED_TEST_OUTPUT_SIZE 1000000000)" > CTestCustom.cmake
  echo "SET(CTEST_CUSTOM_MAXIMUM_FAILED_TEST_OUTPUT_SIZE 1000000000)" >> CTestCustom.cmake

  # add a configuration file for the tests (required since CMake-3.32)
  cat <<EOF > CTestConfiguration.ini
SourceDirectory: ${CGAL_RELEASE_DIR}
BuildDirectory: ${CGAL_BINARY_DIR}
EOF

  CTEST_OPTS=(-T Start -T Test --timeout 1200)
  if [ -n "${DO_NOT_TEST}" ]; then
    CTEST_OPTS+=(-E execution___of__)
  fi
  if [ -n "$CONFIG_TYPE" ]; then
    CTEST_OPTS=(-C "${CONFIG_TYPE}" "${CTEST_OPTS[@]}")
  fi
  if [ -z "${SHOW_PROGRESS}" ]; then
    ctest ${TO_TEST:+-L "${TO_TEST}"} "${CTEST_OPTS[@]}" "-j${NUMBER_OF_PROCESSORS}" ${KEEP_TESTS:+-FC .} > tmp.txt
  else
    ctest ${TO_TEST:+-L "${TO_TEST}"} "${CTEST_OPTS[@]}" "-j${NUMBER_OF_PROCESSORS}" ${KEEP_TESTS:+-FC .} | tee tmp.txt
  fi

  #####################
  ##   GET RESULTS   ##
  #####################
  TAG_DIR=$(awk '/^Create new tag: /{print $4F}' tmp.txt)
  rm tmp.txt
  cd "Testing/${TAG_DIR}" || exit 1
  RESULT_FILE=./"results_${CGAL_TESTER}_${PLATFORM}.txt"
  rm -f "$RESULT_FILE"
  touch "$RESULT_FILE"
  {
    if [ -z "${SCRIPTS_DIR}" ]; then
      sed -n '/CGAL_VERSION /s/#define //p' < "$CGAL_DIR/${INSTALLATION_DIR}include/CGAL/version.h"
    else
      echo "CGAL_VERSION ${CGAL_GIT_VERSION}"
    fi
    sed -n '/The CXX compiler/s/-- The CXX compiler identification is/COMPILER_VERSION =/p' < "${CGAL_BINARY_DIR}/installation.log" |sed -E "s/ = (.*)/\ = '\1\'/"
    if [ -n "${CGAL_SUMMARY_NAME}" ]; then
      echo "CGAL_SUMMARY_NAME ${CGAL_SUMMARY_NAME}"
    fi
    echo "TESTER ${CGAL_TESTER}"
    echo "TESTER_NAME ${CGAL_TESTER}"
    echo "TESTER_ADDRESS ${TESTER_ADDRESS}"
    echo "CGAL_TEST_PLATFORM ${PLATFORM}"
    grep -e "^-- Operating system: " "${CGAL_BINARY_DIR}/installation.log"
    grep -e "^-- USING " "${CGAL_BINARY_DIR}/installation.log"|sort -u
  } >> "$RESULT_FILE"
  #Use sed to get the content of DEBUG or RELEASE CXX FLAGS so that multi-configuration platforms do provide their CXXFLAGS to the testsuite page (that greps USING CXXFLAGS to get info)
  sed -i -E 's/(^-- USING )(DEBUG|RELEASE) (CXXFLAGS)/\1\3/' "$RESULT_FILE"
  {
    sed -n '/^-- Third-party library /p' "${CGAL_BINARY_DIR}/installation.log"
    echo "------------"
  } >> "$RESULT_FILE"
  #if git branch, create empty scm file for python script
  if [ -n "${SCRIPTS_DIR}" ]; then
    touch ../../../../../.scm-branch
  fi
  # The strange way to run the script is to avoid the error message:
  # python3: can't open file '/cygdrive/c/CGAL_ROOT/CGAL-5.5-Ic-68/C:/CGAL_ROOT/CGAL-5.5-Ic-68/test/parse-ctest-dashboard-xml.py': [Errno 2] No such file or directory
  # It seems Python 3.9 from Cygwin cannot understand the Windows paths,
  # but its `open` function can.
  python3 -c "exec(open(\"${CGAL_DIR}/${TESTSUITE_DIR}test/parse-ctest-dashboard-xml.py\").read())" "$CGAL_TESTER" "$PLATFORM"

  for file in *_Tests; do
    [ -e "$file" ] || continue
    mv -- "$file" "${file//_Tests/}"
  done
  OUTPUT_FILE=results_${CGAL_TESTER}_${PLATFORM}.tar
  TEST_REPORT="TestReport_${CGAL_TESTER}_${PLATFORM}"
  mkdir -p Installation
  chmod 777 Installation
  cat "${CGAL_BINARY_DIR}/package_installation.log" >> "Installation/${TEST_REPORT}"

  #call the python script to complete the results report.
  python3 -c "exec(open(\"${CGAL_DIR}/${TESTSUITE_DIR}test/post_process_ctest_results.py\").read())" "Installation/${TEST_REPORT}" "${TEST_REPORT}" "results_${CGAL_TESTER}_${PLATFORM}.txt"
  rm -f "$OUTPUT_FILE" "$OUTPUT_FILE.gz"
  if [ -n "${SCRIPTS_DIR}" ]; then
    rm ../../../../../.scm-branch
  fi
  tar cf "$OUTPUT_FILE" "results_${CGAL_TESTER}_${PLATFORM}.txt" ./*/"$TEST_REPORT"
  echo
  gzip -9f "$OUTPUT_FILE"
  cp "${OUTPUT_FILE}.gz" "results_${CGAL_TESTER}_${PLATFORM}.txt" "${CGAL_TEST_DIR}"
}
# ----------------------------------------------------------------------------------------
# Runs the test on the host $1
# ----------------------------------------------------------------------------------------
run_test_on_host()
{
  PLATFORMS=$(value_of "COMPILERS_${HOST}")
  if [ "${PLATFORMS}" = "all" ]; then
    collect_all_current_platforms "${CGAL_BINARY_DIR_BASE}"
  fi

  for PLATFORM in ${PLATFORMS}; do

    if [ "${CGAL_RELEASE_ID}" \> "CGAL-6.0" ]; then
      if [ "${PLATFORM}" = "MSVC2015-Release-64bits" ]; then
        continue
      fi
    fi

    run_test_on_platform "${PLATFORM}"
    collect_demos_binaries "${PLATFORM}"
    publish_results "${PLATFORM}"

    if [ -z "${KEEP_TESTS}" ]; then
      rm -rf "$CGAL_DIR/cmake/platforms/${PLATFORM}"
    fi
  done
}


#setup dir
setup_dirs


# Setup cmake
log "${ACTUAL_LOGFILE}" "running the testsuites"
if [ -n "${CONSOLE_OUTPUT}" ]; then
    printf "\n-------------------------------------------------------\n"
fi
run_test_on_host