#!/bin/ksh

TEST_NAME=$1
BASE_DIR=$PWD
DIFF=${DIFF:-diff}

if [[ ! -f control/$TEST_NAME/.tests.complete ]]; then
  echo "WARNING: Control tests did not complete, skipping comparisons"
  exit
fi

DIFF_OUTPUT=$BASE_DIR/$TEST_NAME.diff

# Compare directory contents
for DIR in extract build/etc .fcm-make/cache
do
  if [[ -d test/$TEST_NAME/$DIR ]]; then
    if [[ $DEBUG == true ]]; then
      echo "Comparing $DIR directory contents ..."
    fi
    $DIFF -r --exclude=hello_sub2.F90 control/$TEST_NAME/$DIR test/$TEST_NAME/$DIR >$DIFF_OUTPUT
    if [[ $? != 0 ]]; then
      echo "FAILED: $TEST_NAME - $DIR directory contents differ from control"
      exit 1
    fi
  fi
done

# Compare file listings from directories
for DIR in build/bin build/o build/include
do
  if [[ -d test/$TEST_NAME/$DIR ]]; then
    if [[ $DEBUG == true ]]; then
      echo "Comparing $DIR directory listings ..."
    fi
    cd $BASE_DIR/control/$TEST_NAME
    ls -R -1 $DIR >$BASE_DIR/$TEST_NAME.control_files
    cd $BASE_DIR/test/$TEST_NAME
    ls -R -1 $DIR >$BASE_DIR/$TEST_NAME.test_files
    cd $BASE_DIR
    $DIFF $TEST_NAME.control_files $TEST_NAME.test_files >$DIFF_OUTPUT
    if [[ $? != 0 ]]; then
      echo "FAILED: $TEST_NAME - $DIR file listing differs from control"
      exit 1
    fi
    rm $TEST_NAME.control_files $TEST_NAME.test_files
  fi
done

# Compare file listings from directories (non-recursive)
for DIR in . extract build preprocess
do
  if [[ -d test/$TEST_NAME/$DIR ]]; then
    if [[ $DEBUG == true ]]; then
      echo "Comparing $DIR directory listings ..."
    fi
    cd $BASE_DIR/control/$TEST_NAME
    ls -1 $DIR >$BASE_DIR/$TEST_NAME.control_files
    cd $BASE_DIR/test/$TEST_NAME
    ls -1 $DIR >$BASE_DIR/$TEST_NAME.test_files
    cd $BASE_DIR/
    $DIFF $TEST_NAME.control_files $TEST_NAME.test_files >$DIFF_OUTPUT
    if [[ $? != 0 ]]; then
      echo "FAILED: $TEST_NAME - $DIR file listing differs from control"
      exit 1
    fi
    rm $TEST_NAME.control_files $TEST_NAME.test_files
  fi
done

# Compare files in build/include directory (except *.mod)
if [[ -d test/$TEST_NAME/build/include ]]; then
  if [[ $DEBUG == true ]]; then
    echo "Comparing build/include directory contents ..."
  fi
  cd test/$TEST_NAME/build/include
  for FILE in $(ls -1 | grep -v "\.mod$")
  do
    $DIFF $BASE_DIR/control/$TEST_NAME/build/include/$FILE $FILE >$DIFF_OUTPUT
    if [[ $? != 0 ]]; then
      echo "FAILED: $TEST_NAME - $FILE contents differ from control"
      exit 1
    fi
  done
fi
cd $BASE_DIR

# Compare files in preprocess directory (ignoring RUN_DIR in *.c & *.cpp files)
if [[ -d test/$TEST_NAME/preprocess ]]; then
  if [[ $DEBUG == true ]]; then
    echo "Comparing preprocess directory contents ..."
  fi
  cd test/$TEST_NAME
  FILES=$(find preprocess -type f)
  cd $BASE_DIR
  for FILE in $FILES
  do
    if [[ $FILE == ${FILE%.c} && $FILE == ${FILE%.cpp} ]]; then
      $DIFF control/$TEST_NAME/$FILE test/$TEST_NAME/$FILE >$DIFF_OUTPUT
    else
      sed "s#/.*/fcm_test_suite/control/##g" control/$TEST_NAME/$FILE >$TEST_NAME.control_file
      sed "s#/.*/fcm_test_suite/test/##g" test/$TEST_NAME/$FILE >$TEST_NAME.test_file
      $DIFF $TEST_NAME.control_file $TEST_NAME.test_file >$DIFF_OUTPUT
    fi
    if [[ $? != 0 ]]; then
      echo "FAILED: $TEST_NAME - $FILE contents differ from control"
      exit 1
    fi
    rm -f $TEST_NAME.control_file $TEST_NAME.test_file
  done
fi

# Compare build command files
cd test
unset TEST_FILES CONTROL_FILES
if [[ -f $TEST_NAME.build.commands.1 ]]; then
  TEST_FILES=$(ls -1 $TEST_NAME.build.commands.*)
fi
cd $BASE_DIR/control
if [[ -f $TEST_NAME.build.commands.1 ]]; then
  CONTROL_FILES=$(ls -1 $TEST_NAME.build.commands.*)
fi
if [[ $TEST_FILES != $CONTROL_FILES ]]; then
  echo "FAILED: $TEST_NAME - number of build command files differs from control"
  exit 1
fi
cd $BASE_DIR
for FILE in $TEST_FILES
do
  if [[ $DEBUG == true ]]; then
    echo "Comparing $FILE contents ..."
  fi
  if [[ $NPROC = 1 ]]; then
    $DIFF control/$FILE test/$FILE >$DIFF_OUTPUT
  else
    sort control/$FILE >$TEST_NAME.control_file
    sort test/$FILE >$TEST_NAME.test_file
    $DIFF $TEST_NAME.control_file $TEST_NAME.test_file >$DIFF_OUTPUT
  fi
  if [[ $? != 0 ]]; then
    echo "FAILED: $TEST_NAME - $FILE contents differ from control"
    exit 1
  fi
  rm -f $TEST_NAME.control_file $TEST_NAME.test_file
done

# Compare run output files
cd test
unset TEST_FILES CONTROL_FILES
if [[ -f $TEST_NAME.exe.stdout.1 ]]; then
  TEST_FILES="$TEST_FILES $(ls -1 $TEST_NAME.exe.stdout.*)"
fi
cd $BASE_DIR/control
if [[ -f $TEST_NAME.exe.stdout.1 ]]; then
  CONTROL_FILES="$CONTROL_FILES $(ls -1 $TEST_NAME.exe.stdout.*)"
fi
if [[ $TEST_FILES != $CONTROL_FILES ]]; then
  echo "FAILED: $TEST_NAME - number of run output files differs from control"
  exit 1
fi
cd $BASE_DIR
for FILE in $TEST_FILES
do
  if [[ $DEBUG == true ]]; then
    echo "Comparing $FILE contents ..."
  fi
  $DIFF control/$FILE test/$FILE >$DIFF_OUTPUT
  if [[ $? != 0 ]]; then
    echo "FAILED: $TEST_NAME - $FILE contents differ from control"
    exit 1
  fi
done

# Compare file contents ignoring RUN_DIR
for FILE in .fcm-make/config-as-parsed.cfg .fcm-make/config-on-success.cfg
do
  if [[ -f test/$TEST_NAME/$FILE ]]; then
    if [[ $DEBUG == true ]]; then
      echo "Comparing $FILE contents ..."
    fi
    cat control/$TEST_NAME/$FILE | sed "s#/.*/fcm_test_suite/control/##g" >$TEST_NAME.control_file
    cat test/$TEST_NAME/$FILE | sed "s#/.*/fcm_test_suite/test/##g" >$TEST_NAME.test_file
    $DIFF $TEST_NAME.control_file $TEST_NAME.test_file >$DIFF_OUTPUT
    if [[ $? != 0 ]]; then
      echo "FAILED: $TEST_NAME - $FILE file contents differ from control"
      exit 1
    fi
    rm $TEST_NAME.control_file $TEST_NAME.test_file
  fi
done

if [[ $COMPARE_TIMES == true ]]; then
  cd control
  for FILE in $(ls -1 $TEST_NAME.make.stdout.*)
  do
    echo "Make times:"
    grep -e '\[done\]' -e '\[FAIL\]' $FILE >$TEST_NAME.control_make_times
    grep -e '\[done\]' -e '\[FAIL\]' $BASE_DIR/test/$FILE >$TEST_NAME.test_make_times
    $DIFF --side-by-side $TEST_NAME.control_make_times $TEST_NAME.test_make_times
    rm $TEST_NAME.control_make_times $TEST_NAME.test_make_times
  done
fi

rm -f $DIFF_OUTPUT
exit 0