#!/usr/bin/env bash

set -e

function print_usage {
	echo
	echo "Usage: Lint [FILE=file|ALL] BUILD_PATH=path [-v] [w0|w1|w2|w3|w4] [MISRA=ON|MISRA=OFF]"
	echo 
	echo "\"FILE=file|ALL\" Sets the scope of linting"
	echo -e '\t' "FILE sets the scope to single \"file\""
	echo -e '\t' "ALL sets the scope to all project modules"
	echo -e '\t' "If none is set then localy changes files will be linted"
	echo 
	echo "\"BUILD_PATH=path\" is the only mandatory parameter which sets"
	echo -e '\t' "the path to the build product directory"  
	echo
	echo "\"-v\" Turns verbose mode on (off by default)"
	echo
	echo "\"w0|w1|w2|w3|w4\" sets the Warning level"
	echo -e '\t' "w0 - No messages (except for fatal errors)"
	echo -e '\t' "w1 - Error messages only -- no Warnings or"
	echo -e '\t' "Informationals."
	echo -e '\t' "w2 - Error and Warning messages only"
	echo -e '\t' "w3 - Error, Warning and Informational messages (this"
	echo -e '\t' "is the default)"
	echo -e '\t' "w4 - All messages."
	echo
	echo "\"MISRA=ON|MISRA=OFF\" Turns custom MISRA configuration ON"
	echo -e '\t' "and OFF respectively (OFF by defaul)"
	echo
	echo
}


echo
echo "=========== Lint SMART DEVICE LINK project ==========="
echo
 
########################################################################
##### Process input arguments ##########################################
########################################################################

MISRA_ENABLED=false
WARNING_LEVEL=w3
SCOPE=LOCAL_CHANGES
BUILD_PATH=""
VERBOSE=false

if [ $# == 0 ] || [ ${1} == '-h' ] || [ ${1} == '--help' ]; then
	print_usage
	exit 0
fi

while test $# -gt 0; do
        case "$1" in
        MISRA=ON)
			MISRA_ENABLED=true
			shift
			;;	
		MISRA=OFF)
			MISRA_ENABLED=false
			shift
			;;
		w0|w1|w2|w3|w4)
			WARNING_LEVEL=$1
			shift
			;;	
		ALL)
			if [ "$SCOPE" != "LOCAL_CHANGES" ]; then
				echo "Wrong input. It is not allowed to use FILE and ALL at the same time"
				print_usage
				exit 1;
			fi
			SCOPE=ALL
			shift
			;;	
		-v|--verbose)
			VERBOSE=true
			shift
			;;
		*)
			LHS=$(echo $1 | awk 'BEGIN { FS = "=" } ; { print $1 }')
			RHS=$(echo $1 | awk 'BEGIN { FS = "=" } ; { print $2 }')
			
			if [ ${LHS} == 'FILE' ]; then
				if [ "$SCOPE" != "LOCAL_CHANGES" ]; then
					echo "Wrong input. It is not allowed to use FILE and ALL at the same time"
					print_usage
					exit 1;
				fi
				
				if [ "${RHS}" == "" ]; then
					echo "Wrong input. Provide valid FILE value"
					print_usage
					exit 1;
				fi
				SCOPE=$LHS
				FILE_PATH=$RHS
			elif [ ${LHS} == 'BUILD_PATH' ]; then
				if [ "${RHS}" == "" ]; then
					echo "Wrong input. Provide valid BUILD_PATH value"
					print_usage
					exit 1;
				fi
				BUILD_PATH=$RHS
			else 
				echo "Wrong input"
				print_usage
				exit 1;
			fi
			shift
			;;
        esac
done

if [ "${BUILD_PATH}" == "" ]; then
	echo "Mandatory parameter BUILD_PATH is missing"
	print_usage
	exit 1;
fi


if [ "$SCOPE" == "LOCAL_CHANGES" ]; then
	echo -e '\t' "Lining scope is limitted to localy changed files"
elif [ "$SCOPE" == "FILE" ]; then
	echo -e '\t' "Lining scope is limitted to file " $FILE_PATH
elif [ "$SCOPE" == "ALL" ]; then
	
#	echo "You a going to Lint the whole project. It takes a lot of time."
#	echo -n "Are you sure? [Y/n] "

#	read item
#	case "$item" in
#		y|Y)
#			;;
#		n|N)
#			exit 0
#			;;
#		*) 
#			exit 0
#			;;
#	esac

	echo -e '\t' "Lining scope is set to all project files"
fi

if $MISRA_ENABLED; then
	echo -e '\t' "MISRA is enabled"
else
	echo -e '\t' "MISRA is disabled"
fi

case "$WARNING_LEVEL" in
	w0) 
		echo -e '\t' "Warning is set to " $WARNING_LEVEL " --- No messages (except for fatal errors)"
		;;
	w1)  
		echo -e '\t' "Warning is set to " $WARNING_LEVEL " --- Error messages only -- no Warnings or Informationals."
		;;
	w2)  
		echo -e '\t' "Warning is set to " $WARNING_LEVEL " --- Error and Warning messages only"
		;;
	w3) 
		echo -e '\t' "Warning is set to " $WARNING_LEVEL " --- Error, Warning and Informational messages (this is the default)"
		;;
	w4) 
		echo -e '\t' "Warning is set to " $WARNING_LEVEL " --- All messages."
		;;
esac

if $VERBOSE; then 
	echo -e '\t' "Verbose mode is on"
fi

########################################################################
##### Configuring ######################################################
########################################################################

# +e900 Turns on Successful completion, 'Integer' messages produced, which is not by defaulf available in level w0-w3
# -e830 Turns off Info 831: Reference cited in prior message
# -e830 Turns off Info 830: Location cited in prior message
SUPPRESS="-e830 -e831 +e900"

OTHER_PARAMS="-dOS_POSIX"
MISRA_CONFIGURATION=""
SOURCE_CODE_PATH="./src/components/ ./src/appMain/"
EXLUDE_FROM_SOURCE_CODE_PATH="./src/components/qt_hmi/ ./src/components/dbus/ ./src/components/transport_manager/src/usb/qnx"

echo
echo Configuring ...
echo =====================================
echo

rm -Rf ./tools/FlexeLint/tmp
rm -Rf ./tools/FlexeLint/results
mkdir ./tools/FlexeLint/tmp
mkdir ./tools/FlexeLint/results

if $MISRA_ENABLED; then
	MISRA_CONFIGURATION="au-misra-cpp.lnt"
fi

if [ "$SCOPE" == "ALL" ]; then
  EXLUDE_FROM_SOURCE_CODE_PATH=$(echo $EXLUDE_FROM_SOURCE_CODE_PATH | awk '{gsub(/ /,"\\|")}; 1')
  find $SOURCE_CODE_PATH \( -name "*.cc" -o -name "*.cpp" \) | awk '{print "../../../" $0}' | grep -v "./src/components/qt_hmi/" | grep -v $EXLUDE_FROM_SOURCE_CODE_PATH > ./tools/FlexeLint/tmp/sdl-modules.lnt
elif [ "$SCOPE" == "FILE" ]; then
  echo "$FILE_PATH" | awk '{print "../../../" $0}' > ./tools/FlexeLint/tmp/sdl-modules.lnt
elif [ "$SCOPE" == "LOCAL_CHANGES" ]; then
  (git diff --name-only HEAD ; git ls-files --other --exclude-standard) | grep '.cc\|.cpp' | grep 'src/components\|src/appMain' | awk '{print "../../../" $0}' > ./tools/FlexeLint/tmp/sdl-modules.lnt
fi # if [ $CHECKSCOPE == "ALL" ]

(cd tools/FlexeLint/config && make -f co-gcc.mak > /dev/null)

find ./src/ -type d -name "*include*" | awk '{print "--i../../." $0}'  > ./tools/FlexeLint/tmp/sdl-include-path.lnt

echo "--i\"/usr/include/gstreamer-1.0\"" >> ./tools/FlexeLint/config/gcc-include-path.lnt
echo "--i\"/usr/include/glib-2.0\"" >> ./tools/FlexeLint/config/gcc-include-path.lnt
echo "--i\"/usr/lib/i386-linux-gnu/glib-2.0/include\"" >> ./tools/FlexeLint/config/gcc-include-path.lnt
echo "--i\"/usr/lib/x86_64-linux-gnu/glib-2.0/include\"" >> ./tools/FlexeLint/config/gcc-include-path.lnt
echo "--i\"/usr/include/dbus-1.0\"" >> ./tools/FlexeLint/config/gcc-include-path.lnt
echo "--i\"/usr/include/dbus-1.0\"" >> ./tools/FlexeLint/config/gcc-include-path.lnt
echo "--i\"/usr/lib/i386-linux-gnu/dbus-1.0/include\"" >> ./tools/FlexeLint/config/gcc-include-path.lnt
echo "--i\"/usr/lib/x86_64-linux-gnu/dbus-1.0/include\"" >> ./tools/FlexeLint/config/gcc-include-path.lnt

########################################################################
##### Linting ##########################################################
########################################################################
FLINT_BINARY="Flint"

echo
echo Linting ...
echo =====================================
echo

cd ./tools/FlexeLint/bin

if $VERBOSE; then 
	./${FLINT_BINARY} -$WARNING_LEVEL $SUPPRESS -zero -u --i../../../$BUILD_PATH/src/components/ $OTHER_PARAMS $WORDSIZE ../config/smartdevicelink.lnt | tee ../results/raw_flexelint_report.txt
else
	./${FLINT_BINARY} -$WARNING_LEVEL $SUPPRESS -zero -u --i../../../$BUILD_PATH/src/components/ -os ../results/raw_flexelint_report.txt $OTHER_PARAMS $WORDSIZE ../config/smartdevicelink.lnt
fi


########################################################################
##### Preparing detailed report ########################################
########################################################################
if [ "$SCOPE" != "LOCAL_CHANGES" ]; then

	mkdir ../results/developers

	echo
	echo Preparing detailed report. Be patient
	echo =====================================
	echo

	./make_detailed_report
else
	echo
	echo "Detailed report for each developer won't be generated since"
	echo "only local changes are present in report"
	echo =====================================
	echo
fi

########################################################################
##### Cleaning-up ######################################################
########################################################################

function clean-up {
	echo
	echo Cleaning-up ...
	echo =====================================
	echo

	rm -R ../tmp
	cd ../config
	make -f co-gcc.mak clean > /dev/null
	
}

clean-up